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Not much more to say about it than this, good call Alex.


*longer doesnt always mean more surface area, but in the hobby realm is almost always does

Tip #1: Oatz and Squatz

How did you post cure glass-epoxy parts to 650F?

http://www.vhtpaint.com/products/flameproof/

If reliability is high enough at a subsystem level - ie the engines - the number of subsystems don't to be so large to increase the reliability of the system because the likelyhood of failure of the...

Since you're severly penalized for every lb you add to the system, adding redundant systems to increase reliability margin is often not a viable option in aerospace. This is the same reason factors...

Damn good points.

Cool flight at the first LUNAR launch for me...after I saw the detail you put into the rocket I am glad to see you got it back undamaged!

http://i53.tinypic.com/1zvesqw.jpg

I used a Curtis FWFG tube to make a 70kNs motor. It worked fine, although it was quite heavy.

Carbon is used extensively on big stuff, ie the 60" diameter Atlas V:...

I used a 7qt 1000W Delongi and a 30qt Univex, grabbed both for under $200 after some patience with eBay and CL. The

Both have handled 86% solids batches without issue. Doing some work on the...

The distinction is irrelevant. There is almost certainly Mg and if not Al in that green formula. Flame brightness depends on the quality of your sunglasses and camera, not metal content. The...

I'll probably be at both but more than likely flying at XPRS.

???

No Scott, the UltraViolet I was referring to is the higher metals loading formula, I didn't realize you had a propellant named UV too:




The rate is quite high, .57in/s in some cases while...

I think its more characteristically similiar to the Blue O motor you flew at Red Glare a few years ago. ;)

TORCH and UV aren't really similiar propellant at all. They both use Cu as the primary...

Troj,

Thank you for taking the time to write this up, it was very helpful.

Thank you Will

I've never had a problem building a FWFG rocket, and with the prices as low as they are in the last 5 years I am suprised anything else has survived as a building material.

Am I wrong in thinking...

Kevin,

I'd appreciate you posting a description if you wouldn't mind.

Thanks

Great time as usual! Thanks MDRA.

Largest was a 70,000Ns P I made.

As prophecy pointed out, this is a pretty easy formula to come up with.

I haven't seen the commercial yet but I know Dodge borrowed some FAR stuff, including a PAD, to film a RAM commercial.

No one uses a regen cooled nozzle in a solid rocket motor, it doesn't even make sense.

I don't know how recent that fact sheet is, but a lot of the information on it is far from current.

AWESOME, this is perfect!

http://emotibot.net/pix/660.jpg

Anyone else take pictures? I am dying to see more galleries...

Another interesting addition to this project was the use of a standard geometry dual deployment setup. Since the motor was 48" long most of the 60" tube was used up. To make up for the lack of...

Chris,

It is, it somehow fell off somewhere along the ride. I had it epoxied and wrenched down, but it popped lose after the first flight and I never re-epoxied. I thought wrenching it down...

The rocket had flown once before this flight and proved its usefulness as a tough rocket. This flight was a shakedown and had a ~13,000Ns N3800. Unfortunantly the nozzle collapsed about 2s into the...