Tripoli EX rules

[Brian Barney]

I was wondering what the agreed propulsion for tripoli EX launches is? I know APCP, hybrids.. well specifically I was wondering if they'd be cool with me flying a CO2 pressurized water rocket (with deployment and all) I've seen plans online where the chamber (bottle) isnt presurized until launch time when the CO2 valve is punctured remotely.

I personally think it'd be funny when all these people are bringing their O's and then I go and fly abunch of 2L bottles glued together.

So, is that allowed?

 

[WillMarchant]

This sounds like fun! Could you post a URL to the plans, please?

 

[ben]

Originally posted by WillMarchant
This sounds like fun! Could you post a URL to the plans, please?

I think we found outboard motors for the SatV

Ben

 

[rstaff3]

I'm not convinced that this even falls under the rules so it would be up to the RSO/club officers to make the call. I know people flew the Estes hydrogen rocket at my NAR club and nobody said a thing. You might be asked to set up away from the main launch line but away from the crowd.

Come to MDRA, they'd find a way to accommodate. This guy flew a compressed air boosted rocket there: https://www.creamyrobotgoodness.com/

oops, my eye caught Will's location instead of yours. Build it, send it to us, and we'll give it a try

 

[jsdemar]

Originally posted by Brian Barney
I was wondering what the agreed propulsion for tripoli EX launches is? I know APCP, hybrids.. well specifically I was wondering if they'd be cool with me flying a CO2 pressurized water rocket (with deployment and all) I've seen plans online where the chamber (bottle) isnt presurized until launch time when the CO2 valve is punctured remotely.

I personally think it'd be funny when all these people are bringing their O's and then I go and fly abunch of 2L bottles glued together.

So, is that allowed?

If you're an L2 Tripoli member, and it's not considered a 'liquid' propellant, I think it would be ok. Propellants are limited to APCP, Sugar/KN and Hybrids. BP motors are not allowed. All the rocket motor definitions in the Research Safety Code refer to 'oxidizers', so a pressure-only non-combustion rocket might not be considered a rocket motor. See: https://www.tripoli.org/documents/ResearchSafetyCode200602.pdf

Of course, you could always just launch it without requiring an organized launch, as long as you have landowner permission. FAA notification and waiver regulations still apply.

-John

 

[Brian Barney]

heres the URL CO2 power rocket

I will modify it slightly as that requires you to hold the rocket and drop it on the pad to puncture the co2 cartridge, I was thinking a small bp charge driving a piston into the bottom to puncture the charge, but other than that the same basic setup.. that one doesnt have recovery, but I could use a cheap MAD (although an advanced accelerometer could give you an idea of the motor thrustcurve, but as it 'thrusts' it loses alot of weight, so in theory it should be a progressive 'burn')

I would do it in my town, but I live in an extremely lame town, no projectiles of any kind are allowed, no airsoft guns, nothing. I guess I could try it at my clubs launch site the day before when they havent 'reserved' the land

I was thinking of doing it at LDRS for grins during the EX days as my club doesnt do EX launches (prolly cali law issues)

 

[constevens]

Originally posted by jsdemar
If you're an L2 Tripoli member, and it's not considered a 'liquid' propellant, I think it would be ok. Propellants are limited to APCP, Sugar/KN and Hybrids. BP motors are not allowed. All the rocket motor definitions in the Research Safety Code refer to 'oxidizers', so a pressure-only non-combustion rocket might not be considered a rocket motor. See: https://www.tripoli.org/documents/ResearchSafetyCode200602.pdf

Of course, you could always just launch it without requiring an organized launch, as long as you have landowner permission. FAA notification and waiver regulations still apply.

-John

Also another to add to the list of allowed is ANCP.