V2 4" Dual Deploy

I was just playing around with the idea of a 4" V2 dual deploy for a possible LV 2 rocket. The Open Rocket file is a rough draft. I have a 4" phenolic tube that I fiber glassed with 6 oz. and plan to cut that up for the body tubes and switch band. Also I guessed at the kevlar, eyebolts, and misc weights. Also it is not exactly to scale, being about 5" long, but I want to be able to fit 15" J motors in it. I just put this together Sunday night so I'm sure I missed something, but I was wondering if anyone has any ideas on this?

Thanks

View attachment V2 DD.ork

dnl2 said:

I was just playing around with the idea of a 4" V2 dual deploy for a possible LV 2 rocket. The Open Rocket file is a rough draft. I have a 4" phenolic tube that I fiber glassed with 6 oz. and plan to cut that up for the body tubes and switch band. Also I guessed at the kevlar, eyebolts, and misc weights. Also it is not exactly to scale, being about 5" long, but I want to be able to fit 15" J motors in it. I just put this together Sunday night so I'm sure I missed something, but I was wondering if anyone has any ideas on this?

Thanks

Click to expand...

Dave,
Are you thinking of doing it as a Level 2 cert or just as a rocket that falls into the Level 2 classing? If you are doing it as a Level 2 cert,make sure you fly it a few times on an I motor to make sure you are comfortable with the set up. There is no sense in taking unwarranted risks on you L2 flight, especially if you have never done a Dual Deploy before .(which I will assume you have)If you are doing it for fun as a rocket that falls in the level 2 classing, then I would say cool. It will prove to be a fun challenge. There are a more than a few ways to dual deploy a short rocket. One way is the dual deploy tethering systems like the tender decender. I have never used these but others have with good luck. https://www.apogeerockets.com/Tender_Descender.asp

Either way I think you can have a lot of fun with that kind of build and your sim file looks pretty good. Most of the time I don't worry too much about the internals of a rocket in the sim. As long as the weight is correct, the CG is correct and the CD is correct you should get a good feel for how the rocket will fly.

good luck
John

Here is your's..(mine)..3.9...successfully tested single deploy, DD as soon as I get my Blacksky ARRD....I flew twice with adaptor 29mm/AT H240..but I have a 38mm MM, ready for a 38/480..that shall fly awsome...

The beast weight 2kg empty, 650gr in top of nose cone. Electroniy at top too...
Denis







let me know if you need more infos...
Denis

legranddudu
V2 3.9'
Here is your's..(mine)..3.9...successfully tested single deploy, DD as soon as I get my Blacksky ARRD....I flew twice with adaptor 29mm/AT H240..but I have a 38mm MM, ready for a 38/480..that shall fly awsome...

The beast weight 2kg empty, 650gr in top of nose cone. Electroniy at top too...
Denis

Click to expand...

What is the total length on yours? Do you have a rocsim or open rocket file?

Have you built this thing yet? I'm looking to build something similar.

Kevin

Design looks good except a 48" chute seems big. Are you planning motor eject/separation at apogee and then altimeter deployment of main?