Sport and EX Motor Specifications Page

Case ID	Nozzle OD	Case Description
1.360	1.330	PP 38mm Hybrid tube
1.330	1.320	Loki 38mm EX
1.935	1.920	Loki 54mm EX
2.00	1.950	AeroTech 54mm sport case ID; nozzle OD is custom ex and is snug - make no larger.
2.330		RATT K-240

This is a new area of experimental motors that I am venturing into.

My Hybrid Experimental Motor Research page
My HyperTEK Experimental Motors page (shortcut)

I have Dr. Terry McCreary's highly regarded Experimental Rocket Propellant book and recommend it as a start for anybody considering getting into composite motors.

He recommends that experimenters start with PBAN not HTPB and that mostly as PBAN has a very long potlife and is very forgiving. The downside to PBAN is that it requires a heated cure and compounding is also facilitated, though it doesn't strictly require, heating during the compounding process.

I have started with PBAN, and will likely stick with it for a while, as my wife is a Toxicologist and has forbidden from the house the isocyanates associated with curing HTPB. By contrast, PBAN is cured with DER331 Epoxy Resin which is relatively innocuous. (For some humor, read the aRocket thread I initiated called "Help, My Wife is a Toxicologist" )

I have completed a temperature controlled curing oven, and a heated mixing bowl (ala Novalab), and I use my RobinAir powered vacuum degassing plate with my Kitchenaid mixer. I will post pictures of all of these.

I have recently completed casting and test firing Terry's SIMPLE propellant in what should be a 1500 NS K-500 motor. It was in a 4 grain bates configuration with 13" of propellant with 5/8" core in a Loki 1600Ns 54mm case. I will be flying this at Whitakers, NC in a new 4" 10lb rocket called "Ignorant of My Destiny"

Terry McCreary's website: http://www.experimentalrocketry.com/
Chris Krstanovic's "Novalab" heated mixing bowl: http://www.novalab.org/rockets/mixer.htm

I have built a propellant curing oven and a tube curing oven. I now have new pages; pelease refer to them.

Since my wife has banned Isocyanate chemistry I haven't done much with HTPB. But I did want to make some smoke tracking grains with zinc so had to sneak a batch in. I had some samples of R20 and R45 but no curative so I got a pound bottle of HC-7 Hydroxy-Cure from Dave at Mr. Fiberglass. It worked well and I've created a HC-7 Hydroxy-Cure web page with the properties he provided me based on some evaluation work by Dr. McCreary.

I've started looking at improvising and using finocyl and other non circular cores. I've started a finocyl page, and a cruciform page.

Re: 54mm Motor Dimensions

---

Mcmaster

System of Measurement         Inch
Type         External
Style         Spiral
For Shaft Diameter         2-1/8"
Fits Groove Diameter         2.003"
Fits Groove Width         0.086"
Inside Diameter         1.989"
Thickness         0.078"

HPR Magazine has a  technical articles section now with a couple nice ones Erosive Burning and Straight Cut Nozzles. I have the issues but it's nice they are online.

Composite Propellants with Bi-Plateau Burning Behaviour is also cached here
A modified AN/APCP propellant patent
How'd this APCP patent get by the patent office?


DESIGN OF AERODYNAMICALLY STABILIZED FREE ROCKETS which is cached here.

Snap Rings & Retainers

SPL Swiss Propulsion Laboratories
Powder Magazines, Locks, etc.

Now Hybrids - Wayne at http://www.nowhybrids.com
o-rings
Hardware
Loki Research - Http://www.lokiresearch.com
DPS
Mostly Missiles - http://www.mostlymissiles.com
Aerocon - http://www.aeroconsystems.com
(Purple Stuff) - http://www.proxhardware.com
Black Hole Rocketry Motor Hardware - http://blackholerocketry.com/store/index.html
Caveman Rocketry
Cold Fusion N2O systems http://www.coldfusionN2O.com - ask for Mike and for the eBay pricing; should be lots off their list.