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Thread: MDRA ESL 231

  1. #1
    Join Date
    28th August 2011
    Location
    Maryland
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    388

    MDRA ESL 231

    MDRA will be holding ESL 231 at the Sod farm this weekend. Looks like the weather should cooperate although there will be some clouds around.

    I'm planning to test a few more sparky motors, I like the look I have just trying to get the chamber pressure up without using super small nozzles.

    Who's coming out and what do you plan to fly?

    See you at the Field, Scott

    Hopefully we'll have some news about moving back to Higgs Farm for the November Launch.

    Scott
    MDRA

  2. #2
    Join Date
    26th February 2017
    Posts
    36
    Iím planning on returning there finally after getting my L1 at LDRS. I am just finishing up a Loc Vulcanite and an Athena 3. They should be good for their maiden flights there.

    NAR #102778
    L1 - 4/7/17 - Loc IV H123W, LDRS36

  3. #3
    Join Date
    20th April 2012
    Location
    Fredericksburg VA
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    1,529
    I'll be there Sunday. I just finished my L3 cert rocket that I've been working on for 8 months (including a 2 month paint job) so I may bring it along for display only. Cert flight will be when we get back to Higgs.
    NAR Level 2 #96210

  4. #4
    Join Date
    5th December 2013
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    MD
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    6,822
    I'll be there Saturday. My usual, MAC Scorpion and MC Formula 75, on a CTI I212-SS and Loki I316-SF respectively. Kids will be bringing a fleet of Estes ARF, plus our two Higgs Farm rockets on D12-5.

    John S. ---- NAR #96911 ---- TRA #15253 ---- MDRA #067 ---- BARC #028
    L1, 3/15/14: Aerotech Sumo, CTI H133BS
    L2, 6/21/14: Giant Leap Vertical Assault, CTI J240RL
    L3, 3/12/16: MAC Performance Radial Flyer, CTI M1101WH
    Altitude: 13,028', L3 flight; Speed: Mach ???, L3 flight

  5. #5
    Join Date
    18th January 2009
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    11,604
    I'm bringing the Fronkenseen Hat, the Fett Boy, a small cluster tetrahedron and couple of 3/4FNC.
    Dick Stafford
    The member formerly known as the Pointy-Haired Moderator.
    The Original Rocket Dungeon
    Volunteer compiler of product news for ROCKETS Magazine

  6. #6
    Join Date
    28th June 2017
    Location
    Northern VA
    Posts
    91
    Won't be there this month but am planning on going to the launch next month where ever it ends up. Will be doing my first dual-deploy setup on an I599N with the rocket I plan to use for L2
    Trevor Mushung
    NAR 99446

  7. #7
    Join Date
    28th August 2011
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    Well the weather didn't end up being the best for flying but I got my sparky testing done. Was finally able to get the pressure up closer to where I want it without going to a really small nozzle.

    Here's the 2 grain 54mm which worked out to be about an I-220


    Click image for larger version. 

Name:	I-220 1.jpg 
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Name:	I-220 2.jpg 
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ID:	330197 Click image for larger version. 

Name:	I-220 3.jpg 
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    A 6 grain 54mm which came in around a K-545. Pressure exactly where I wanted it due to the length of the motor.

    Click image for larger version. 

Name:	K550 1.jpg 
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    Next step is to fly one and see if there's enough black smoke compared to all the sparks I'm getting.

    Thanks for the great pictures Dennis!
    Scott
    MDRA

  8. #8
    Join Date
    18th January 2009
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    Quote Originally Posted by Scott S View Post
    Well the weather didn't end up being the best for flying but I got my sparky testing done. Was finally able to get the pressure up closer to where I want it without going to a really small nozzle.

    Here's the 2 grain 54mm which worked out to be about an I-220


    Click image for larger version. 

Name:	I-220 1.jpg 
Views:	39 
Size:	95.1 KB 
ID:	330196 Click image for larger version. 

Name:	I-220 2.jpg 
Views:	39 
Size:	76.6 KB 
ID:	330197 Click image for larger version. 

Name:	I-220 3.jpg 
Views:	42 
Size:	108.0 KB 
ID:	330198

    A 6 grain 54mm which came in around a K-545. Pressure exactly where I wanted it due to the length of the motor.

    Click image for larger version. 

Name:	K550 1.jpg 
Views:	40 
Size:	92.3 KB 
ID:	330199


    Next step is to fly one and see if there's enough black smoke compared to all the sparks I'm getting.

    Thanks for the great pictures Dennis!
    Tom's huge low and slow rockets and your sparky, noisy static tests are becoming my favorite events at MDRA. Besides my flights, of course

    I got a couple of poor videos:

    https://www.flickr.com/photos/957060...n/photostream/

    https://www.flickr.com/photos/957060...n/photostream/

    Tom's flight:

    https://www.flickr.com/photos/957060...n/photostream/

    My whole album:

    https://www.flickr.com/photos/957060...57687881643644
    Dick Stafford
    The member formerly known as the Pointy-Haired Moderator.
    The Original Rocket Dungeon
    Volunteer compiler of product news for ROCKETS Magazine

  9. #9
    Join Date
    5th December 2013
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    My daughter got to push the launch button on Tom's flight. What a thrill!

    John S. ---- NAR #96911 ---- TRA #15253 ---- MDRA #067 ---- BARC #028
    L1, 3/15/14: Aerotech Sumo, CTI H133BS
    L2, 6/21/14: Giant Leap Vertical Assault, CTI J240RL
    L3, 3/12/16: MAC Performance Radial Flyer, CTI M1101WH
    Altitude: 13,028', L3 flight; Speed: Mach ???, L3 flight

  10. #10
    Join Date
    11th January 2013
    Location
    Old Bridge,,,,,,,,,,,,, New Jersey
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    5,147
    I'm jealous...
    You guy's r havin too good of a time without me...
    That's so cool Scott,,
    Jiving out a home made propellent that way...
    How do you tell what pressure was achieved inside the case ??

    Teddy




    www.Onebadhawk.com

    Ted Chernok
    Old Bridge New Jersey
    METRA- BoD- New York..
    URRG- Way upstate New York..
    MDRA- Maryland..
    QCRS- Illinois- Best politicians money can buy ( Tim L. )..
    Kloudbusters- Kansas..
    NAR # 87063
    Tripoli # 14443
    Level 3

  11. #11
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    5th December 2013
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    Quote Originally Posted by Onebadhawk View Post
    You guy's r havin too good of a time without me...
    Teddy
    There's an easy fix for that.

    John S. ---- NAR #96911 ---- TRA #15253 ---- MDRA #067 ---- BARC #028
    L1, 3/15/14: Aerotech Sumo, CTI H133BS
    L2, 6/21/14: Giant Leap Vertical Assault, CTI J240RL
    L3, 3/12/16: MAC Performance Radial Flyer, CTI M1101WH
    Altitude: 13,028', L3 flight; Speed: Mach ???, L3 flight

  12. #12
    Join Date
    28th August 2011
    Location
    Maryland
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    Quote Originally Posted by Onebadhawk View Post
    .....
    How do you tell what pressure was achieved inside the case ??

    Teddy
    The forward closure is tapped to accept a pressure transducer. I also had a load cell but it didn't acquire data on 2 of the burns. The load cell and pressure transducer send data to a computer that you can use to try and characterize the propellant.

    Hope to see you in November.
    Scott
    Scott
    MDRA

  13. #13
    Join Date
    28th August 2011
    Location
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    Quote Originally Posted by rstaff3 View Post
    Tom's huge low and slow rockets and your sparky, noisy static tests are becoming my favorite events at MDRA. Besides my flights, of course
    I'm trying my best to keep up with flights like Fronkenseen Hat and Fett Boy....

    Fronkenseen was a perfect October launch flight!
    Scott
    MDRA

  14. #14
    Join Date
    11th January 2013
    Location
    Old Bridge,,,,,,,,,,,,, New Jersey
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    Quote Originally Posted by Scott S View Post
    The forward closure is tapped to accept a pressure transducer. I also had a load cell but it didn't acquire data on 2 of the burns. The load cell and pressure transducer send data to a computer that you can use to try and characterize the propellant.

    Hope to see you in November.
    Scott
    Ohhh,, right,,,
    I forgot that that was possible..
    I was just thinking the case would have to be in a rack-- against a load cell...
    Very cool Scott...
    John has been telling me a bit...
    Very cool man...
    I keep promising myself I'm going to take Andy C up on his gracious invitation
    to go to his house and do a bit of learning...
    Never seems to be enough time, or the right time...

    Tomorrow isn't promised...
    I should stop procrastinating and go...

    Teddy





    www.Onebadhawk.com

    Ted Chernok
    Old Bridge New Jersey
    METRA- BoD- New York..
    URRG- Way upstate New York..
    MDRA- Maryland..
    QCRS- Illinois- Best politicians money can buy ( Tim L. )..
    Kloudbusters- Kansas..
    NAR # 87063
    Tripoli # 14443
    Level 3

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