University of Utah Unity IV Responsibilities Motor System –Fuel –Nozzle –Ignition Flight Profile Maximum Energy Footprint
Motor System Fuel –HTPB: Fuel grain composed of R-45M resin –Cross- linked with diisocyanate Motor Housing –6061-T6 Aluminum –Static tested to 1200 psia Nozzle –Ceramic Composite –Rated to 5000 F
Ignition Model Rocket Motors –2, Estes C8-0 motors Accessible on Launch Rail Low power requirement –4 AA Batteries Reliable Performance
HTPB NO 2 inlet Estes C8-0 Motor Injector “O” Ring Seal Motor Cap Assembly
Flight Profile Maximum Altitude –10,641 feet AGL, at T = 28 seconds Burn Time –T = 5.4 seconds Flight Velocity –Launch Rail Exit = 89.1 ft/s –Overall Flight = 0.71 Mach FTS Failure Impact –763 ft/s at T=58 seconds
Maximum Energy Footprint 5.40 Miles at =45 0 No Critical Areas with in Range
Motor Assembly
Motor Cap
Motor Housing
Motor Nozzle
Motor Nozzle Retainer
Motor Assembly
Fuel Mixing Procedure Safety Equipment Liquid Chemicals Incorporate By Hand Dry Chemicals Incorporate By Hand Mix For 30 Minutes
Fuel Mixing Problems Need More Mixing Time Recipe Catalyst
3” Motor Fuel Mixing
8” Motor Fuel Mixing
Modified Fuel Mixing Tank
Portable Oven Design 1
Portable Oven Design 2
Portable Oven Design 3
Mandrel Configurations