Sparkmaker 2
Overview
Sparkmaker 2 is my newest and most advanced rocket yet! It takes everything I learned from building and flying rockets for Project 767 and building Sparkmaker 1 to create a rocket optimized for supersonic flight. Sparkmaker 2 can fly on any 38 mm diameter motor and can carry a payload such as the Project 767 instrument unit or a mass simulator. Sparkmaker 2 takes full advantage of 3D-printing to create intricate shapes such as airfoiled fins and a tapered boattail. As with Sparkmaker 1, its name and color scheme come from the mascot of Purdue University, Boilermaker Special!
Height
1246 mm / 49.06 in
Diameter
57.4 mm / 2.26 in
Mass
1.23 kg / 19.6 oz
Motor Mount
38 mm / 1.49 in
Flight Profile
Transonic - Supersonic
Projected Speed
497 m/s / 1112 mph / Mach 1.45 (On an I500 motor)
Payload
Internal Height
220 mm / 8.66 in
Internal Diameter
54 mm / 2.13 in
Capability
Sparlmaker 2’s payload bay is equipped to carry 54 mm diameter payloads such as a supersonic instrument unit or a mass simulator
The payload bay is equipped with vent holes to allow the air pressure inside of the rocket to change as well as a shock cord attachment point to connect it with the booster
Sparkmaker 2 shares a common payload bay design with Tri-Star and Sparkmaker 1, but makes use of an upgraded nosecone made for supersonic flight profiles
Booster
Height
673 mm / 26.96 in
Diameter
57.4 mm / 2.26 in
Motor Mount
38 mm / 1.49 in
Capability
Sparkmaker 2’s booster can house a variety of 38 mm high-power engines
The booster is equipped with recovery hardware such as the rocket’s shock cord and parachute.
The booster also has small vent holes to prevent pressure inside from becoming greater than the outside environment during ascent
For higher altitude flights, the booster can also house a Jolly Logic Chute Release