Page 56 of 56 FirstFirst ... 6 46 52 53 54 55 56
Results 1,651 to 1,679 of 1679
  1. #1651
    Join Date
    17th November 2015
    Posts
    747
    Quote Originally Posted by pyrobob View Post
    Don't forget the black powder , but pretty much, yes.
    uh, what about the black powder? Or are you just saying "don't indiscriminately chuck the stuff you drilled out of the delay, save it and dispose of it responsibly"?


  2. #1652
    Join Date
    23rd July 2011
    Location
    Butte, MT
    Posts
    1,208
    No, you must install the black powder ejection charge after drilling the delay.
    Here's an instruction sheet:
    http://www.aerotech-rocketry.com/upl...13%20Small.pdf

    Steve Shannon
    L3CC, TAP, Director, Tripoli Rocketry Association

  3. #1653
    Join Date
    5th January 2011
    Location
    Cambridge MA
    Posts
    1,463
    Quote Originally Posted by ActingLikeAKid View Post
    uh, what about the black powder? Or are you just saying "don't indiscriminately chuck the stuff you drilled out of the delay, save it and dispose of it responsibly"?
    The delay of a DMS isn't black powder. It is APCP like the propellant. Pyrobob is saying to remember to install the ejection charge after drilling the delay.
    Total Impulse for 2017: 658 Ns - A 2.8% J
    A:0, B:0, C:0, D:0, E:0, F:0, G:0, H:0, I:0 J:1
    2016: 3000 Ns: G:1, H:3, I:2, J:2 | 2015: 1049 Ns - G:1, H:1, J:1 | 2014: 1428 Ns - G:1, H:6 | 2013: 953 Ns - H:5 | 2012: 1293 Ns - D:2, E:1, F:2, G:4, H:4 | 2011: 945 Ns - A:4, B:5, C:13, D:4, E:7, F:5

  4. #1654
    Join Date
    16th May 2015
    Location
    Cedar City
    Posts
    455
    I don't have any special tricks other than to make sure the igniter is all the way installed. My personal choice at launches are DMS motors just to help save time on the flight line. You will need to add the small washer and then the black powder after you have drilled the delay, then it is ready to go.
    Charles Savoie
    General Manager
    RCS RMC, Inc.

    NEXT LAUNCH: 2017

  5. #1655
    Join Date
    17th November 2015
    Posts
    747
    Thanks, y'all. I like that I'm doing the ejection charge myself, that means I can tailor it to exactly what I want...

  6. #1656
    Join Date
    17th January 2011
    Location
    Spring Green WI
    Posts
    2,390
    I am sure this has been asked before but what is the washer for?
    TFRLLC
    TRA 2225
    TWA
    QCRS
    WOOSH

  7. #1657
    Join Date
    17th November 2015
    Posts
    747
    I believe the washer subtracts two seconds from the amount you're taking off the delay.

    So if you're set to "remove 4 seconds from the delay" and you put the washer in, then it takes 2 seconds off the delay.

  8. #1658
    Join Date
    16th May 2015
    Location
    Cedar City
    Posts
    455
    Quote Originally Posted by crossfire View Post
    I am sure this has been asked before but what is the washer for?
    The washer goes into the powder well of the bulkhead after you drill the delay. The powder is then poured into the well and over the washer. The washer ensures a powerful ejection charge so that none if the ejection escapes out of the aft end through the nozzle.
    Charles Savoie
    General Manager
    RCS RMC, Inc.

    NEXT LAUNCH: 2017

  9. #1659
    Join Date
    16th May 2015
    Location
    Cedar City
    Posts
    455
    Quote Originally Posted by ActingLikeAKid View Post
    I believe the washer subtracts two seconds from the amount you're taking off the delay.

    So if you're set to "remove 4 seconds from the delay" and you put the washer in, then it takes 2 seconds off the delay.
    I think they were referring to the small silver washer for the powder well, but the drill tool washer works exactly as you described.
    Charles Savoie
    General Manager
    RCS RMC, Inc.

    NEXT LAUNCH: 2017

  10. #1660
    Join Date
    15th October 2011
    Location
    Oregon
    Posts
    364
    Quote Originally Posted by ATGM View Post
    I think they were referring to the small silver washer for the powder well, but the drill tool washer works exactly as you described.
    I don't see any mention of such a washer (for the powder well) in the instruction set... Might be worth an update, for something as critical as ejection charge.

  11. #1661
    Join Date
    17th January 2011
    Location
    Spring Green WI
    Posts
    2,390
    Yes I was talking about the washer used in the BB charge well. The first time I seen the washer I thought it was a part for something else and never used it. All work out well but have used it ever since.
    TFRLLC
    TRA 2225
    TWA
    QCRS
    WOOSH

  12. #1662
    Join Date
    13th March 2010
    Location
    Bentonville, AR
    Posts
    649
    Quote Originally Posted by ATGM View Post
    I think they were referring to the small silver washer for the powder well, but the drill tool washer works exactly as you described.
    Is the washer new? I have not seen a washer in all of the DMS motors I have flown to date. If they were there I must have discarded them since they were not in the instructions.
    Dwayne Shmel
    TRA 13137 / NAR 88172
    Tulsa Rocketry
    K.L.O.U.D. Busters
    L3

  13. #1663
    Join Date
    6th December 2013
    Location
    TX
    Posts
    2,129
    Quote Originally Posted by dshmel View Post
    Is the washer new? I have not seen a washer in all of the DMS motors I have flown to date. If they were there I must have discarded them since they were not in the instructions.
    It's relatively new. I guesstimate it was around 10 months ago when they started to include them.

    The Fastest and Most Reliable and Transparent Way to Buy High Power Rocket Motors

    Same/Next Day Shipping, Real Time Inventory, Order Confirmation, Package Tracking

    Tripoli #3135

    Confirmed OG
    Level Too

  14. #1664
    Join Date
    16th May 2015
    Location
    Cedar City
    Posts
    455
    Quote Originally Posted by dshmel View Post
    Is the washer new? I have not seen a washer in all of the DMS motors I have flown to date. If they were there I must have discarded them since they were not in the instructions.
    All DMS motors come with a small silver washer in the small bag with the igniter, red cap and powder capsule. It was implemented last year and the instructions do include them. If you had some of the older motors they would not have them.
    Charles Savoie
    General Manager
    RCS RMC, Inc.

    NEXT LAUNCH: 2017

  15. #1665
    Join Date
    13th March 2010
    Location
    Bentonville, AR
    Posts
    649
    The last DMS motor I flew was purchased fall of 2015, maybe even older than that. I just received a new batch. I will check those.
    Dwayne Shmel
    TRA 13137 / NAR 88172
    Tulsa Rocketry
    K.L.O.U.D. Busters
    L3

  16. #1666
    Join Date
    17th January 2011
    Location
    Spring Green WI
    Posts
    2,390
    What is the function of the washer?
    TFRLLC
    TRA 2225
    TWA
    QCRS
    WOOSH

  17. #1667
    Join Date
    26th October 2009
    Location
    Sheboygan WI
    Posts
    1,160
    Quote Originally Posted by crossfire View Post
    What is the function of the washer?


    I believe it is to reduce the size of the touch hole. I think the hole size is 1/4" to drill the delay, which is pretty large compared to the normal sized touch hole in the regular hardware. Need more BP for a touch hole that is so large, lots of the energy from the BP going out the back end/ nozzle. I have some older DMS without the washer and was wondering about getting some of those washers to use.
    _______________________
    Jeff - NAR #76531 -L2

  18. #1668
    Join Date
    17th January 2011
    Location
    Spring Green WI
    Posts
    2,390
    I think you are right on that. I am sure you probably have some washers in your work shop that would work out just fine.
    TFRLLC
    TRA 2225
    TWA
    QCRS
    WOOSH

  19. #1669
    Join Date
    27th July 2014
    Location
    south beloit, IL
    Posts
    1,288
    any news on the new 24/60 loads, and the 29/40-120 red load?
    NAR# 99285
    Tripoli# 16283
    L1- 4/26/2015 Madcow Cowabunga- H123SK
    L2- 11/1/2015 Wildman Darkstar 2.6- J355RL
    Woosh
    QCRS

  20. #1670
    Join Date
    16th May 2015
    Location
    Cedar City
    Posts
    455
    The updated DMS instructions with the washer can be found in the resources section of the website under instructions:

    http://www.aerotech-rocketry.com/uploads/76b1c22b-afa5-4281-895f-fd7507a06752_29-54mm%20DMS%20Instructions%2012-29-15%20Small.pdf
    Charles Savoie
    General Manager
    RCS RMC, Inc.

    NEXT LAUNCH: 2017

  21. #1671
    Join Date
    18th January 2009
    Location
    WI
    Posts
    923
    Is the washer metal? Does this washer then get ejected (as there is some BP below it)? I wouldn't like the idea of a metal washer getting thrown up into my recovery system.
    Paul
    NAR #87246 L1 - Section #558 - www.wooshrocketry.org
    "If we weren't all crazy, we would go insane" - Jimmy Buffett

  22. #1672
    Join Date
    17th January 2011
    Location
    Spring Green WI
    Posts
    2,390
    Yes the washer is gone forever.
    TFRLLC
    TRA 2225
    TWA
    QCRS
    WOOSH

  23. #1673
    Join Date
    27th January 2009
    Location
    Oregon
    Posts
    1,826
    Charlie, Hi, getting ready to re-order 24mm RC casings soon, any word on the new plugged closure for the standard casing, ie eta?

    Frank
    Manufacturer of 24mm RC Rocket Glider Kits: dynasoarrocketry.com

    Franks Rocketry and R/C Airplane Blog

  24. #1674
    Join Date
    16th May 2015
    Location
    Cedar City
    Posts
    455
    Quote Originally Posted by burkefj View Post
    Charlie, Hi, getting ready to re-order 24mm RC casings soon, any word on the new plugged closure for the standard casing, ie eta?

    Frank
    Hi Frank,

    The plugged 24mm closure will be a bigger project than anticipated so for now it is on the back burner. Maybe after we get the 24/60 loads released we can start back up on them.
    Charles Savoie
    General Manager
    RCS RMC, Inc.

    NEXT LAUNCH: 2017

  25. #1675
    Join Date
    31st May 2011
    Location
    San Diego, CA
    Posts
    2,410
    I sure enjoyed flying with you last weekend Charlie.

    That K2050 Super Thunder was a wickedly fun motor .

    Looking forward to purchasing what you allowed us to peek at .

    Kenny
    Fiesta Area Rocket Team - San Diego, CA

    TRA# 01113 L3, NAR # 38484 -DART, NAR Section #317
    GHS 2011 PB-X ROCstock XXXV GHS 2012 PB XI ROCstock XXXVII PBXII SPRINGFEST 2014 ROCstock XXXIX Oktoberfest 2014 LASTER Blaster ROCstock XL SPRINGFEST 2015 ROCstock XL1 ROCtober Oktoberfest 2015 LDRS XXXV ROCstock XLIII Holtville HAVOC Springfest 2017 --> ROCstock XLIII :dark:

  26. #1676
    Join Date
    29th July 2012
    Location
    Northern Michigan
    Posts
    1,630
    how about some 38/120 smokes and sparks ?

    another reload for 38/1320 case ?
    L2

    2018 Plan on burning lvl 3 NS :)

  27. #1677
    Join Date
    25th June 2014
    Posts
    585
    Looking for the new F67 Economax motors. My credit card is ready. Where can they be purchased?

  28. #1678
    Join Date
    19th January 2009
    Location
    Pine Mountain, Ga
    Posts
    1,804
    Quote Originally Posted by swatkat View Post
    Looking for the new F67 Economax motors. My credit card is ready. Where can they be purchased?
    No where yet.
    Christopher Short
    TRA #10247 L3 TAP
    NAR #83000 L3CC
    Prefect #38
    Chris' Rocket Supplies, LLC
    www.csrocketry.com
    sales@csrocketry.com
    850-554-6531

  29. #1679
    Join Date
    15th May 2016
    Posts
    1,140
    Quote Originally Posted by michigander View Post
    another reload for 38/1320 case ?
    Been barking up that tree for years. Get a Loki 38/1200 and call it a day.

    David McCann
    Dave's Rockets | My Flights
    URRG |URRF 3 | Level 2 | TRA# 14210

Similar Threads

  1. An open thread about Estes Screamers and the like...
    By Marc_G in forum Low Power Rocketry (LPR)
    Replies: 68
    Last Post: 17th May 2015, 12:13 AM
  2. Aerotech HV ARCAS build thread *Launched 4-13-14*
    By VARifleman in forum High Power Rocketry (HPR)
    Replies: 22
    Last Post: 14th April 2014, 06:16 AM
  3. Open Rocket 13.11.1 won't open previous saved files on a Mac?
    By Eyeguy41 in forum Rocketry Electronics and Software
    Replies: 6
    Last Post: 28th December 2013, 04:07 AM
  4. Aerotech Strong Arm build thread
    By trippkid in forum Mid Power Rocketry (MPR)
    Replies: 48
    Last Post: 29th August 2012, 06:47 PM
  5. Open Rocket & Roc Sim Sticky Thread
    By bradycros in forum Rocketry Electronics and Software
    Replies: 92
    Last Post: 24th December 2011, 08:42 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
  •