Help Support RocketryForum by donating using the link above or becoming a Supporting Member.


Page 2 of 4 FirstFirst 1 2 3 4 LastLast
Results 31 to 60 of 96
  1. #31
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    3D printed ABS rail guides to replace rail buttons on the cluster projects.
    These rail guides have a much stronger hold on the rail than rail buttons, while still sliding up the rails very smoothly.

    Pic 1: Rail guides as printed (2 parts above) and after trimming, sanding and drilling (one part below).
    Filament deposition 3D printed parts are strongest in the two horizontal dimensions as printed and slightly weaker in the vertical dimension.
    Due to being built up in horizontally printed layers.

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170319_175413.jpg 
Views:	58 
Size:	167.8 KB 
ID:	315212   Click image for larger version. 

Name:	20170319_142155.jpg 
Views:	63 
Size:	69.2 KB 
ID:	315211   Click image for larger version. 

Name:	20170319_134837.jpg 
Views:	57 
Size:	50.2 KB 
ID:	315210  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  2. #32
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    pic 1: Nitro FireBall, final touch-up with blackened epoxy to cover a few light spots.

    pic 2: Ring fin in place.

    pic 3: SkyHook 2, my basement is 55-60F this time of year. The Cotronics high-heat epoxy is still tacky the next day. To harden up the cure and do some sanding, oven on low for 2 hours does the trick.
    Note: assembly is cured overnight at room temp first, then cleaned up, and the aluminum motor case is the only contact with oven.

    After the glass, did three light build-ups of epoxy, followed the next day by sanding. Fin edges are now nicely airfoiled.

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170321_195303.jpg 
Views:	49 
Size:	84.6 KB 
ID:	315546   Click image for larger version. 

Name:	20170323_203553.jpg 
Views:	52 
Size:	76.4 KB 
ID:	315547   Click image for larger version. 

Name:	20170325_105509.jpg 
Views:	59 
Size:	132.2 KB 
ID:	315548  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  3. #33
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    SkyHook 2
    pic 1 and 2: Recovery attachment point for airframe: 1/8 in Kevlar. First epoxy saturated a loop in the middle of a 5 in piece.

    pic 3: After that cured, bonded its still flexible Kevlar tails to the top of the motor tube inside the airframe.

    pic 4: Bonded ejection charge holders into NC shoulder. Second is for a backup charge 1 sec after primary.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170321_195015.jpg 
Views:	40 
Size:	70.0 KB 
ID:	315660   Click image for larger version. 

Name:	20170321_195112.jpg 
Views:	40 
Size:	76.7 KB 
ID:	315661   Click image for larger version. 

Name:	20170326_152604.jpg 
Views:	46 
Size:	109.8 KB 
ID:	315663   Click image for larger version. 

Name:	20170323_211240.jpg 
Views:	43 
Size:	54.7 KB 
ID:	315662  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  4. #34
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    HellBoy
    Epoxied stage one fins to 51x Estes C11 motor pack.
    Same size and shape as last time as that worked well.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170326_152633.jpg 
Views:	57 
Size:	118.9 KB 
ID:	315665   Click image for larger version. 

Name:	20170326_152625.jpg 
Views:	57 
Size:	109.4 KB 
ID:	315664  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  5. #35
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    pic 1: Upgraded from 9V alkaline to LiPoly for both cluster altimeters. Rechargeable and able to put out much more current.
    While I have never had a 9V alkaline fail to fire an ejection charge, their current output is low enough that the igniters frequently take a second or two to fire in ground tests. Disconcerting. Now resolved.

    pic 2: Securing rail guide Tnuts to the airframe with 3x layers of 1oz fiberglass.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170328_202901.jpg 
Views:	54 
Size:	63.9 KB 
ID:	316057   Click image for larger version. 

Name:	20170328_002433.jpg 
Views:	51 
Size:	48.9 KB 
ID:	316056  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  6. #36
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    pic 1: Doing my best to rid the world of D11-P motors.
    Seriously, if anyone wants to buy some D11-P engines, contact AMW, they have them.

    pic 2: Turbine Rocket Saucer loaded up for flight number 60 at LDRS.

    pic 3: HellBoy stage 2 with 19x D11-P motors loaded.

    pic 4: Two layers of tape covering gaps between motors.

    pic 5: BP in each motor nozzle and crossing pattern of quickmatch, all covered by double layers of masking tape.
    Flashpan ready for launch. One igniter into the piece of (brown) quickmatch extending from the side of the motor is all that is needed at the field.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170329_213044.jpg 
Views:	48 
Size:	144.9 KB 
ID:	316058   Click image for larger version. 

Name:	20170329_213831.jpg 
Views:	46 
Size:	141.5 KB 
ID:	316060   Click image for larger version. 

Name:	20170329_213750.jpg 
Views:	55 
Size:	101.2 KB 
ID:	316059   Click image for larger version. 

Name:	20170329_214819.jpg 
Views:	52 
Size:	133.1 KB 
ID:	316061   Click image for larger version. 

Name:	20170329_225833.jpg 
Views:	52 
Size:	98.9 KB 
ID:	316062  

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  7. #37
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    pic 1: Nitro FireBall with 6x F15 + 10x D11-P motors prepped with flashpan.
    A central G80 skid plus 6x outboard C11-0 motors to be added later and will be fired by igniters.
    Can NOT use flashpan with AP motors.

    pic 2 and 3: HellBoy stage 1 with 51x C11 motors flashpan.
    Set both of these up for two igniters each for fire insurance
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170330_234429.jpg 
Views:	39 
Size:	112.9 KB 
ID:	316064   Click image for larger version. 

Name:	20170329_232616.jpg 
Views:	49 
Size:	133.8 KB 
ID:	316063   Click image for larger version. 

Name:	20170330_234603.jpg 
Views:	44 
Size:	107.9 KB 
ID:	316065  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  8. #38
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Weight control has gone very well with the SkyHook 2.

    pic 1: Recovery system 2.70oz - Top Flight Recovery 30in Thin Mil chute, 12ft 1/8in Kevlar, 9x9in Nomex + Jolly Logic chute release

    pic 2: Fiberglass NC 5.25oz - including glassed in video camera

    pic 3: Airframe adds only 7.95oz to weight of motor case.

    pic 4: Altimeter sled / NC shoulder assembly 3.35oz - including Raven altimeter and tracker

    Bottom line, complete SkyHook 2 rocket adds only 19.25oz = 1.20lbs to motor weight.

    K1440 loaded motor is 66.8oz, spent motor 25.8oz.

    4.2lb motor and 1.2lb rocket.
    Motor is more than 77% of rocket launch weight.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170330_214610.jpg 
Views:	37 
Size:	116.8 KB 
ID:	316066   Click image for larger version. 

Name:	20170330_214752.jpg 
Views:	35 
Size:	74.3 KB 
ID:	316067   Click image for larger version. 

Name:	20170330_215003.jpg 
Views:	36 
Size:	78.9 KB 
ID:	316068   Click image for larger version. 

Name:	20170330_220050.jpg 
Views:	39 
Size:	92.5 KB 
ID:	316069   Click image for larger version. 

Name:	20170331_000400.jpg 
Views:	49 
Size:	23.1 KB 
ID:	316070  

    Click image for larger version. 

Name:	20170331_000430.jpg 
Views:	41 
Size:	36.7 KB 
ID:	316071  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  9. #39
    Join Date
    6th March 2010
    Location
    Amesbury, MA
    Posts
    2,025
    Quote Originally Posted by delta22 View Post
    pic 1: Doing my best to rid the world of D11-P motors.
    Seriously, if anyone wants to buy some D11-P engines, contact AMW, they have them.

    pic 2: Turbine Rocket Saucer loaded up for flight number 60 at LDRS.

    pic 3: HellBoy stage 2 with 19x D11-P motors loaded.

    pic 4: Two layers of tape covering gaps between motors.

    pic 5: BP in each motor nozzle and crossing pattern of quickmatch, all covered by double layers of masking tape.
    Flashpan ready for launch. One igniter into the piece or (brown) quickmatch extending from the side of the motor is all that is needed at the field.
    Like they used to say in all the old war movies, "If you've got 'em, smoke 'em."

  10. #40
    Join Date
    15th October 2016
    Location
    Huntsville AL
    Posts
    2,236
    Quote Originally Posted by delta22 View Post
    pic 1: Nitro FireBall with 6x F15 + 10x D11-P motors prepped with flashpan.
    A central G80 skid plus 6x outboard C11-0 motors to be added later and will be fired by igniters.
    Can NOT use flashpan with AP motors.

    pic 2 and 3: HellBoy stage 1 with 51x C11 motors flashpan.
    Set both of these up for two igniters each for fire insurance
    Is there any way to use the G80 to light the blackpowder motors?
    "I'm at least 70% confident about whatever I say (90% of the time)"- college me

    NAR 101195
    Level 1: Big SAM, 9/10/16

  11. #41
    Join Date
    22nd August 2015
    Location
    Rhode Island
    Posts
    1,324
    This is ridiculous! I wish I could be there to see some of these at LDRS. I think we will need an encore performance at CMASS sometime this summer.
    NAR #100940, RIMRA & CMASS
    L1 - 4/17/16, Tyrannosaur (by Binder Design), Loki H144
    L2 - 8/19/17, Terrordactyl (by Binder Design), CTI J250

  12. #42
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Quote Originally Posted by Nytrunner View Post
    Is there any way to use the G80 to light the blackpowder motors?
    Yes, an AP motor can be used to fire the quickmatch and flashpan.
    This would be likely to fire flashpan only after AP has started ignition. A plus under many circumstances.

    It may be a bit awkward to do as the QM does not like to be bent hard, as it would need to be to install the AP motor. The QM would need to be positioned under the AP motor nozzle after motor and igniter insertion.

    With clusters it is always wise to consider what happens if motor(s) are not ignited. The 22 BP motors in this cluster are enough to get a safe launch even if the AP motor is not fired.
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  13. #43
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Today is the last day for most teams to complete their qualification flight attempts for TARC 2017. Flight results are due by tomorrow.
    CMASS does a lot to provide multiple opportunities for teams to fly, including a couple early Spring TARC only launches.

    pic 1+2: (Some of) the team I mentor - Fairhaven Rec Center - and their rocket lifting off on a CTI F59
    To their credit, the team completed 3 respectable qualification flights.
    This team started last year in the 7th grade.

    pic 3: The dedicated CMASS launch crew

    pic 4+5: A couple other TARC team's rockets

    The previous TARC team I mentored included my youngest.
    That older TARC team has now graduated from high school.
    One joined the Air Force, another is studying Aerospace Tech, a couple others are also STEM majors.
    It's great to see the kids doing well.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC05894.jpg 
Views:	52 
Size:	141.3 KB 
ID:	316308   Click image for larger version. 

Name:	DSC05930.jpg 
Views:	53 
Size:	66.7 KB 
ID:	316309   Click image for larger version. 

Name:	DSC05983.jpg 
Views:	53 
Size:	112.4 KB 
ID:	316310   Click image for larger version. 

Name:	DSC06013.jpg 
Views:	56 
Size:	70.2 KB 
ID:	316311   Click image for larger version. 

Name:	DSC06466.jpg 
Views:	57 
Size:	96.7 KB 
ID:	316312  

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  14. #44
    Join Date
    28th June 2016
    Location
    PA
    Posts
    664
    Boris,

    Your flights are gonna be awesome. I am really looking forward to LDRS...
    TRA #10518 ---- MDRA #106

    L1, 6/25/2016: Modified MadCow Super Batray, CTI I236 BS
    L2, 9/17/2016: Modified RW Patriot, CTI J280 SS
    L3, 4/8/2017: RW Formula 200, CTI M1810 RL

    Max Altitude: 4,978', L3 Cert flight
    Max Speed: Mach ???, L3 Cert flight

  15. #45
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Thanks.
    I'm looking forward to LDRS too.
    Weather for Thursday is looking nasty, but Friday through Sunday looks OK.

    One last comment about TARC, in addition to being an awesome group of kids, the older team made it to the TARC finals twice.
    An awesome experience for the kids, and pretty cool for the adult support staff too
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  16. #46
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Drove 8 hours south Tuesday, 4/4/17. From Massachusetts to Maryland.
    There was a cold, driving rain coming down as I packed the car that morning.
    Definitely caused me to question the wisdom of doing all this work to go to a rocket launch in this weather.

    Wednesday, 4/5/17, was a very nice sunny day. Spent with my wife and daughter vising beautiful Annapolis, MD.
    Annapolis has more colonial era buildings than any other American city.
    The state capital building is the oldest US state capital still in use.
    Wife and daughter are in 3 of the pics.
    Last two images are at the Naval Academy.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC06602.jpg 
Views:	46 
Size:	218.8 KB 
ID:	317286   Click image for larger version. 

Name:	DSC06609.jpg 
Views:	51 
Size:	268.9 KB 
ID:	317287   Click image for larger version. 

Name:	DSC06618.jpg 
Views:	47 
Size:	150.2 KB 
ID:	317288   Click image for larger version. 

Name:	DSC06634.jpg 
Views:	51 
Size:	253.3 KB 
ID:	317289   Click image for larger version. 

Name:	DSC06638.jpg 
Views:	44 
Size:	147.7 KB 
ID:	317290  

    Click image for larger version. 

Name:	DSC06598.jpg 
Views:	47 
Size:	131.6 KB 
ID:	317285   Click image for larger version. 

Name:	DSC06646.jpg 
Views:	41 
Size:	276.3 KB 
ID:	317291   Click image for larger version. 

Name:	DSC06660.jpg 
Views:	46 
Size:	241.5 KB 
ID:	317292   Click image for larger version. 

Name:	DSC06663.jpg 
Views:	42 
Size:	267.0 KB 
ID:	317293  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  17. #47
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    LDRS 36 – MDRA – Higgs Farm – Price, MD
    Thursday, 4/6/17


    There were layers of clouds for most of the day, with dense thunderheads and heavy rain rolling through in waves.
    Mid-afternoon there were tornado warnings and the winds whipped up to 60-80mph.
    Every eazy-up was destroyed and all but one porta-john were flipped.
    Most fliers had the wisdom to wait another day before arriving LDRS
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170406_141427.jpg 
Views:	36 
Size:	79.4 KB 
ID:	317294   Click image for larger version. 

Name:	20170406_144544.jpg 
Views:	39 
Size:	43.5 KB 
ID:	317295   Click image for larger version. 

Name:	20170406_145104(1).jpg 
Views:	40 
Size:	38.1 KB 
ID:	317296   Click image for larger version. 

Name:	20170406_145754.jpg 
Views:	42 
Size:	95.5 KB 
ID:	317297   Click image for larger version. 

Name:	20170406_145825.jpg 
Views:	40 
Size:	46.5 KB 
ID:	317298  

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  18. #48
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    There were only a handful of flights that day, the last of which was my SkyHook 2 on the CTI K1440.
    The 1.2lb rocket + 4.2lb motor blasted off the pad gunshot fast.

    The first second of flight was great. Then there was a fluttering sound and a slight crookedness to the smoke trail.
    Neil, the eagle-eyed LCO, spotted pieces falling, and that was the last seen of Skyhook 2.

    I walked the field a half a dozen times with a tracker. Never getting a signal or seeing any piece of the rocket.
    Did have fun making the rocket and got a couple good pictures (only because the camera was taking 14 frames per second).
    Such is the nature of rockets that attempt extreme speeds.

    At some point in the future I'll do a similar flight, and it will have to be named Vanishing Point, as that is what happend to both my K1440 extreme speed projects - at the last 2 LDRS events.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC06716.jpg 
Views:	75 
Size:	72.5 KB 
ID:	317299   Click image for larger version. 

Name:	DSC06717.jpg 
Views:	70 
Size:	54.9 KB 
ID:	317300  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  19. #49
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    pic 1: Robert DeHate and Tom Cohen's massive Patriot rocket right next to where we got delicious crab bisk (each day).

    pic 2: My car at the Martinak state park camping cabin. This is what it looked like when my wife and daughter were not in the car.

    pic 3: My spot in the middle, the Stevens father and son team to the right, and Tom Cohen's massive 240lb box rocket that lifted off on a N5600 on the left.

    pic 4: Nitro Fireball mostly prepped.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170407_145707.jpg 
Views:	60 
Size:	81.4 KB 
ID:	317301   Click image for larger version. 

Name:	20170408_082907.jpg 
Views:	60 
Size:	210.1 KB 
ID:	317302   Click image for larger version. 

Name:	20170408_114827.jpg 
Views:	62 
Size:	102.5 KB 
ID:	317303   Click image for larger version. 

Name:	20170408_114843_HDR.jpg 
Views:	64 
Size:	223.9 KB 
ID:	317304  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  20. #50
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    LDRS 36 – MDRA – Higgs Farm – Price, MD
    Friday, 4/7/17


    Heavy winds all day with light rain showers on an off.
    My one flight for the day was the Spinning Saucer of the Apocalypse on 2x CTI G100 Skidmarks and 8x D11-P engines.

    The saucer went up about 150ft and travelled horizontally almost 300ft. Farthest ever, even skipping slightly across the wet grass as it came down.
    First time with the skids for lift, to a very delightful effect.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC06830.jpg 
Views:	52 
Size:	159.1 KB 
ID:	317305   Click image for larger version. 

Name:	DSC06833.jpg 
Views:	52 
Size:	167.9 KB 
ID:	317306   Click image for larger version. 

Name:	DSC06835.jpg 
Views:	53 
Size:	117.5 KB 
ID:	317307   Click image for larger version. 

Name:	DSC06836.jpg 
Views:	56 
Size:	104.3 KB 
ID:	317308   Click image for larger version. 

Name:	DSC06839.jpg 
Views:	61 
Size:	71.3 KB 
ID:	317309  

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  21. #51
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    A couple others among the limited number of flights that day.

    pic 1: A high school team and their massive rocket lifting off on a 6grain 98mm CTI skidmark
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC06781.jpg 
Views:	62 
Size:	105.0 KB 
ID:	317310   Click image for larger version. 

Name:	DSC06895.jpg 
Views:	55 
Size:	85.7 KB 
ID:	317311  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  22. #52
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    LDRS 36 – MDRA – Higgs Farm – Price, MD
    Saturday, 4/8/17


    Sunny day with moderate to heavy winds.
    Many fliers on the field, with the MDRA crew and volunteers moving things along at a good clip.

    My first flight was the Nitro Fireball with 29 motors loaded
    stage 1: 1x CTI G80 skid + (all the rest Estes motors) 6x F15 + 10x D11-P + 6x C11-0
    stage 2: 6x D12-7 each firing their own mini-rocket


    One of the first stage C11-0 engines were not fired, in turn not firing the D12-7 in one of the mini-rockets.
    Everything else fired very nicely, with 5 of the mini-rockets staging at about one second into the flight, and the large central rocket pushing its way upwards on the D11-P's and long burn F15’s.
    The large rocket went just past 1500ft and the mini-rockets went higher.

    pic 1 + 2: flashpan firing
    pic 3: central G80 skid firing
    pic 4 and later: all motors pushing hard
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC07297.jpg 
Views:	64 
Size:	60.2 KB 
ID:	317312   Click image for larger version. 

Name:	DSC07298.jpg 
Views:	62 
Size:	86.2 KB 
ID:	317313   Click image for larger version. 

Name:	DSC07301.jpg 
Views:	62 
Size:	67.4 KB 
ID:	317314   Click image for larger version. 

Name:	DSC07304.jpg 
Views:	68 
Size:	100.6 KB 
ID:	317315   Click image for larger version. 

Name:	DSC07307.jpg 
Views:	65 
Size:	70.1 KB 
ID:	317316  

    Click image for larger version. 

Name:	DSC07310.jpg 
Views:	63 
Size:	50.2 KB 
ID:	317317   Click image for larger version. 

Name:	DSC07313.jpg 
Views:	64 
Size:	62.1 KB 
ID:	317318   Click image for larger version. 

Name:	DSC07314.jpg 
Views:	63 
Size:	61.6 KB 
ID:	317319   Click image for larger version. 

Name:	DSC07317.jpg 
Views:	64 
Size:	67.2 KB 
ID:	317320   Click image for larger version. 

Name:	DSC07318.jpg 
Views:	70 
Size:	42.3 KB 
ID:	317321  

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  23. #53
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    My second and final flight for the day (and LDRS) was the HellBoy 70.
    Lifted off fast on 51x flashpan-fired C11 stage 1 motors.
    Staged quickly to the flashpan-fired 19x D11-P second stage motors.


    Thanks to Nate Lowrie for help setting this flight up.
    And congratulations Nate on a successful L3 flight in a beautifully painted rocket.

    Lots of fire and smoke as the rocket hissed its way across the sky, firing all 70 motors in both stages.
    A strong crosswind caused the rocket to weathercock, and the rocket came in fairly hard in a gully.
    Broke two (disposable) first stage fins and one (repairable) second stage fin.

    pic 1 + 2: flashpan firing
    pic 3 - 6: 51x C11's firing = BP I-560
    pic 7+: staging to 19x D11-P's
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC07824.jpg 
Views:	52 
Size:	108.6 KB 
ID:	317322   Click image for larger version. 

Name:	DSC07825.jpg 
Views:	56 
Size:	107.9 KB 
ID:	317323   Click image for larger version. 

Name:	DSC07830.jpg 
Views:	62 
Size:	146.7 KB 
ID:	317324   Click image for larger version. 

Name:	DSC07831.jpg 
Views:	65 
Size:	94.6 KB 
ID:	317325   Click image for larger version. 

Name:	DSC07832.jpg 
Views:	58 
Size:	76.7 KB 
ID:	317326  

    Click image for larger version. 

Name:	DSC07836.jpg 
Views:	58 
Size:	27.8 KB 
ID:	317327   Click image for larger version. 

Name:	DSC07845.jpg 
Views:	53 
Size:	65.3 KB 
ID:	317328   Click image for larger version. 

Name:	DSC07846.jpg 
Views:	67 
Size:	94.9 KB 
ID:	317329   Click image for larger version. 

Name:	DSC07851.jpg 
Views:	55 
Size:	57.2 KB 
ID:	317330   Click image for larger version. 

Name:	DSC07855.jpg 
Views:	54 
Size:	51.8 KB 
ID:	317331  

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  24. #54
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Some other flights from the day.
    If you recognize your rocket and would like pictures, please PM me.

    pic 1: A cool liftoff by the Stevens team

    pic 5: Can see the drop away rail guide falling behind the rocket
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC06960.jpg 
Views:	43 
Size:	59.3 KB 
ID:	317332   Click image for larger version. 

Name:	DSC07043.jpg 
Views:	40 
Size:	49.7 KB 
ID:	317334   Click image for larger version. 

Name:	DSC06993.jpg 
Views:	45 
Size:	65.5 KB 
ID:	317333   Click image for larger version. 

Name:	DSC07048.jpg 
Views:	41 
Size:	59.6 KB 
ID:	317335   Click image for larger version. 

Name:	DSC07143.jpg 
Views:	53 
Size:	50.0 KB 
ID:	317336  

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  25. #55
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    And more cool flights.

    Last two pics are of a massive 18in diameter Big Daddy lifting off majestically on O power.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC07426.jpg 
Views:	50 
Size:	88.7 KB 
ID:	317338   Click image for larger version. 

Name:	DSC07382.jpg 
Views:	49 
Size:	57.0 KB 
ID:	317337   Click image for larger version. 

Name:	DSC07499.jpg 
Views:	50 
Size:	88.9 KB 
ID:	317339   Click image for larger version. 

Name:	DSC07540.jpg 
Views:	47 
Size:	87.1 KB 
ID:	317340   Click image for larger version. 

Name:	DSC07580.jpg 
Views:	60 
Size:	85.6 KB 
ID:	317341  

    Click image for larger version. 

Name:	DSC07586.jpg 
Views:	48 
Size:	57.5 KB 
ID:	317342  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  26. #56
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    And the last set.

    Second to last picture was a successful L1 flight. Congratulations!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSC07667.jpg 
Views:	42 
Size:	57.3 KB 
ID:	317344   Click image for larger version. 

Name:	DSC07613.jpg 
Views:	44 
Size:	23.0 KB 
ID:	317343   Click image for larger version. 

Name:	DSC07702.jpg 
Views:	39 
Size:	77.1 KB 
ID:	317345   Click image for larger version. 

Name:	DSC07730.jpg 
Views:	38 
Size:	51.1 KB 
ID:	317346   Click image for larger version. 

Name:	DSC07762.jpg 
Views:	40 
Size:	54.3 KB 
ID:	317347  

    Click image for larger version. 

Name:	DSC07860.jpg 
Views:	39 
Size:	84.8 KB 
ID:	317348   Click image for larger version. 

Name:	DSC07882.jpg 
Views:	45 
Size:	97.5 KB 
ID:	317349   Click image for larger version. 

Name:	DSC07908.jpg 
Views:	44 
Size:	55.2 KB 
ID:	317350  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  27. #57
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Despite the challenges presented by the weather, had a great time at LDRS.
    Thanks to the great folks at MDRA and AMW and many others and helped make this a great event.

    Successfully fired 108 of 110 motors loaded in 4 flights.

    Drove home on Sunday as I had to work Monday.
    Was tempted to try to launch the Carbon Weasel Sunday morning, but would not have been able to spend more than 2 hours recovering it.
    Decided to play it safe as this was my only remaining mach 2 capable rocket, and several past recoveries took much longer than 2 hours.

    The cluster rockets are in pretty good shape: HellBoy needs a fin-reattached, The Nitro FireBall needs one lost mini-Rocket replaced. Big Saucer is fine. All will fly again.

    Will post video when I get it edited. Got great video of the clusters, SkyHook 2 not so much.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20170411_181554.jpg 
Views:	54 
Size:	106.5 KB 
ID:	317352   Click image for larger version. 

Name:	20170409_200721.jpg 
Views:	47 
Size:	171.1 KB 
ID:	317351  
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  28. #58
    Join Date
    20th February 2009
    Location
    Cayuga, Indiana
    Posts
    12,881
    Quote Originally Posted by delta22 View Post
    LDRS 36 MDRA Higgs Farm Price, MD
    Saturday, 4/8/17


    Sunny day with moderate to heavy winds.
    Many fliers on the field, with the MDRA crew and volunteers moving things along at a good clip.

    My first flight was the Nitro Fireball with 29 motors loaded
    stage 1: 1x CTI G80 skid + (all the rest Estes motors) 6x F15 + 10x D11-P + 6x C11-0
    stage 2: 6x D12-7 each firing their own mini-rocket


    One of the first stage C11-0 engines were not fired, in turn not firing the D12-7 in one of the mini-rockets.
    Everything else fired very nicely, with 5 of the mini-rockets staging at about one second into the flight, and the large central rocket pushing its way upwards on the D11-P's and long burn F15s.
    The large rocket went just past 1500ft and the mini-rockets went higher.

    pic 1 + 2: flashpan firing
    pic 3: central G80 skid firing
    pic 4 and later: all motors pushing hard
    One of the best flights of LDRS36!
    L3, TRA #11847
    Tripoli Indiana #132
    Tripoli Central Illinois #59
    Central Illinois Aerospace (NAR) #527
    Chicago Rocket Mafia, "Big Bucks" Dixon
    ___________________________________

    Quiet little voices creep into my head. -- We Were Promised Jetpacks

  29. #59
    Join Date
    18th January 2009
    Location
    Maryland
    Posts
    11,709
    It was cool seeing those two big clusters. Thanks for posing with them!
    Dick Stafford
    The member formerly known as the Pointy-Haired Moderator.
    The Original Rocket Dungeon
    Volunteer compiler of product news for ROCKETS Magazine

  30. #60
    Join Date
    1st September 2011
    Location
    Greencastle, IN
    Posts
    1,630
    Quote Originally Posted by delta22 View Post
    There were only a handful of flights that day, the last of which was my SkyHook 2 on the CTI K1440.
    The 1.2lb rocket + 4.2lb motor blasted off the pad gunshot fast.

    The first second of flight was great. Then there was a fluttering sound and a slight crookedness to the smoke trail.
    Neil, the eagle-eyed LCO, spotted pieces falling, and that was the last seen of Skyhook 2.

    I walked the field a half a dozen times with a tracker. Never getting a signal or seeing any piece of the rocket.
    Did have fun making the rocket and got a couple good pictures (only because the camera was taking 14 frames per second).
    Such is the nature of rockets that attempt extreme speeds.

    At some point in the future I'll do a similar flight, and it will have to be named Vanishing Point, as that is what happend to both my K1440 extreme speed projects - at the last 2 LDRS events.
    That flame / rocket ratio is insane!

    L1 - Ash Grove RIP L2 - OAMC - Tripoli OH - L3 - Mid West Power
    NAR - 96297 TRA-15713
    2016 burned - 24824 Ns
    2017 burned to date - 28496.0 Ns

Similar Threads

  1. Boris Katan flights 2016 -> Clusters + 3D Printing Fun <-
    By delta22 in forum High Power Rocketry (HPR)
    Replies: 145
    Last Post: 4th January 2017, 03:36 AM
  2. Boris Katan flights 2015 -> Clusters are Fun <-
    By delta22 in forum High Power Rocketry (HPR)
    Replies: 174
    Last Post: 17th December 2015, 07:27 AM
  3. Boris Katan flights 2014 -> Clusters are Fun <-
    By delta22 in forum High Power Rocketry (HPR)
    Replies: 139
    Last Post: 30th December 2014, 05:05 AM
  4. Paging Delta22 aka Boris Katan
    By JAL3 in forum Propulsion
    Replies: 19
    Last Post: 3rd September 2010, 05:02 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •