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Tsiokovsky equation
where:
Δv = change of velocity of the vehicle.
v  sub e = effective velocity of exhaust gases.
M = initial total mass of the vehicle.
m = final total mass of the vehicle.— Konstantin E. Tsiolkovsky.

Man's mind and spirit grow with the space in which they are allowed to operate.

— Krafft A. Ehricke,
rocket pioneer.

 

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Crayon Rocket Kits
Contains parts to turn a Crayon Bank into a rocket. Available in 29mm or 38mm.

Crayon Rocket Kit PartsKits are $20 for parts or $30 with a crayon

The kit includes: Motor tube, Top and middle centering rings, Bottom centering ring and Bulkhead, 3 flat metal brackets, 3 fins, 3 angle metal brackets, short and long eyebolts, (18) 6-32 x 3/8" screws

To assemble this kit you will need: CA (cyanoacrylate adhesive), Epoxy, Sharp knife, Philips screwdriver, Drill with assorted bits, Wrench or pliers, Masking tape, Marking pen

Parts you need to provide: Shock cord, Parachute, Launch lugs or rail buttons, Motor Retention


Crayon RocketCrayon colors available:
Red, Pink, Blue, Purple.  If I can find more green I will have them again.

 

Extra set of fins $5.00


PML Kits
All kits listed are Quantum tubing with piston ejection system.
 
Excalibur Rockets Kit Motor Length Diameter Price
IO 29mm 33" 2.1" $62.50
Callisto 29mm 46" 2.1" $66.50
Black Brant VB 29mm 51" 2.5" $86.50
MR-1 29mm 25" 2.1" $76.50
AMRAAM 2 29mm 42" 2.1" $76.50
AMRAAM 3 54KS 61.2" 3.0" $123.50
AMRAAM 4 54KS 77.7" 3.9" $177.50
Bullpuppy 2.1 29mm 28" 2.1" $71.95
Bullpuppy 38mm 39" 3.0" $99.60
Tiny Pterodactyl 29mm 25.5" 2.1" $61.50
Pterodactyl Jr. 38mm 41" 3.9" $105.50
X-Calibur 38mm 46" 2.1" $81.50
Mini BBX 29mm 61" 2.1" $103.75
AGM-256 Pit Bull 38mm 35" 2.6" $103.95
Phobos 38mm 57" 2.1" $77.50
Small Endeavour 38mm 47.25" 2.5" $83.50
Endeavour 54KS 71" 3.9" $163.50
Explorer 29mm 25" 2.1" $76.50
  Terrier Booster 2nd stage 38mm 22.5" 2.5" $104.50
  D-Region Tomahawk 38mm 71" 3.0" $118.95
  Cirrus* 29mm 44" 1.5" $64.50
Many other kits are available to order, some 2 stage, some with CPR, some hybrid ready. For the complete selection see the PML website. http://www.publicmissiles.com/
* The Cirrus is phenolic tubing, all others are Quantum tubing.
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