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


Results 1 to 12 of 12
  1. #1
    Join Date
    10th July 2007
    Location
    Melbourne, Australia
    Posts
    1,267

    Rocksim file for Go Devil 38 ?

    I recently started to work on a Go Devil 38 that I picked up at the Black Friday sales in 2016. Does anyone have a RockSim file they might like to fling me please? I am just starting to see what this bird might do. I think it might scare me a little .

    TRA 13430, Level 3

    "Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

  2. #2
    Join Date
    29th December 2013
    Location
    Bayport MN
    Posts
    160
    Here's an OR file for one my son built a year ago. The weights should be checked against your build. I HIGHLY recommend tip to tip glassing this one. At 1/16" the fins are very thin! For comparison a Blackhawk 38 has fins that are 1/8" thick. According to Finsim, you can easily rip the skinny fins off it without beefing them up a bit. It's gonna need it when you load it up with a J510 ;-)

    Attached Files Attached Files
    L1 - Madcow 4" Phoenix I180 Skidmark 1651 feet
    L2 - Darkstar 2.6" J145 Skidmark longburn 4787 feet
    L3 - Terminator 5" M1297 White Lightning 8602 feet

    TRA 15743
    NAR 30949
    http://www.rocketreviews.com/karl-tyrrells-page.html

  3. #3
    Join Date
    10th July 2007
    Location
    Melbourne, Australia
    Posts
    1,267
    Thanks for the ORK Thorfire, but I don't believe they go into RS? If anyone has an RKT for the rocket would still be appreciated.

    The supplied G10 fins are a bit flexy. I am looking around the J510 area for a motor. I will be doing something a bit more special than T-T
    TRA 13430, Level 3

    "Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

  4. #4
    Join Date
    29th May 2015
    Location
    Keller, Texas
    Posts
    623
    Quote Originally Posted by OverTheTop View Post
    Thanks for the ORK Thorfire, but I don't believe they go into RS? If anyone has an RKT for the rocket would still be appreciated.
    If you download the file and change the extension from .ORK to .RKT it should work. I know that it works on rocksim files used in open rocket.
    Jeff Jones

    TRA 04736
    NAR 75968
    L3 KF5YYI




  5. #5
    Join Date
    6th September 2009
    Posts
    1,648
    Quote Originally Posted by PokerJones View Post
    If you download the file and change the extension from .ORK to .RKT it should work. I know that it works on rocksim files used in open rocket.
    I don't think so. ork is a compressed zip file of stuff.

    Read the ork into OpenRocket, then save back out as .rkt

  6. #6
    Join Date
    29th December 2013
    Location
    Bayport MN
    Posts
    160
    I saved it as a rocksim file. Usually converting from rocksim to open rocket drops a lot out of the model (avionics, recovery, hardware, etc.). Hopefully this works for you.
    Attached Files Attached Files
    L1 - Madcow 4" Phoenix I180 Skidmark 1651 feet
    L2 - Darkstar 2.6" J145 Skidmark longburn 4787 feet
    L3 - Terminator 5" M1297 White Lightning 8602 feet

    TRA 15743
    NAR 30949
    http://www.rocketreviews.com/karl-tyrrells-page.html

  7. #7
    Join Date
    10th July 2007
    Location
    Melbourne, Australia
    Posts
    1,267
    Fantastic! Thanks everyone, especially Thorfire. I will give it a go tonight.
    TRA 13430, Level 3

    "Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

  8. #8
    Join Date
    10th July 2007
    Location
    Melbourne, Australia
    Posts
    1,267
    Thanks for that file Thorfire. The RKT went straight into RS. I need to add the electroincs, chute etc.

    It has begun
    TRA 13430, Level 3

    "Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

  9. #9
    Join Date
    3rd February 2017
    Posts
    98
    I wouldn't worry about the fins. Mine has been thru the ringer and the Proline 4500 epoxy fillits have held up fine. Biggest motor I personally have flown in my stock GD is an Aerotech J520. It took it to 11500' in the blink of an eye.

  10. #10
    Join Date
    10th July 2007
    Location
    Melbourne, Australia
    Posts
    1,267
    Quote Originally Posted by captbk View Post
    I wouldn't worry about the fins. Mine has been thru the ringer and the Proline 4500 epoxy fillits have held up fine. Biggest motor I personally have flown in my stock GD is an Aerotech J520. It took it to 11500' in the blink of an eye.
    What was your peak speed and acceleration on that flight please captbk? Also, did you tip-to-tip the fins, or slot them in or something else especially?
    TRA 13430, Level 3

    "Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

  11. #11
    Join Date
    26th November 2009
    Posts
    4,916
    I don't think tip to tip is necessary unless one gets a modified version with a longer tube and uses a Loki K motor. The stock sustainer tube I believe is too short for the K. I believe if you rough up the tube and the root edge of the fins, a reasonable fillet of
    rocketpoxy or Proline 4500 or if one has any Cotronics leftovers lying around and you'll be fine for flight. If you want to make the can more robust by laminating fine but I don't think it's necessary for a J motor. My GD is going to use a 720 case or shorter
    so largest I can use is a J500. I'm not sweating it.
    Oh, captbk may or may not have flown electronics that records the info you seek but you can see if he responds. Kurt

  12. #12
    Join Date
    10th July 2007
    Location
    Melbourne, Australia
    Posts
    1,267
    I will be slotting the airframe and inserting the root of the fins before gluing. I have used this technique before and it is quite good. Mach 1.8 without tip-tip on a Tomach 54mm.

    TRA 13430, Level 3

    "Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

Similar Threads

  1. Little Dog DD rocksim file
    By DTS in forum High Power Rocketry (HPR)
    Replies: 2
    Last Post: 19th May 2012, 03:57 AM
  2. Rocksim file?
    By jj94 in forum Low Power Rocketry (LPR)
    Replies: 2
    Last Post: 27th January 2007, 09:02 PM
  3. Help with rocksim file
    By Dbarrm in forum The Watering Hole
    Replies: 19
    Last Post: 12th January 2007, 08:38 PM
  4. Rocksim file for LOC
    By robfire820 in forum Propulsion
    Replies: 2
    Last Post: 26th March 2006, 06:18 AM
  5. Rocksim File
    By cummins in forum Mid Power Rocketry (MPR)
    Replies: 0
    Last Post: 9th December 2004, 08:53 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
  •