Static Thrust Tests

  • •Measurements for a given voltage, current, RPM, and strain were recorded
  • Measurements taken in voltage increments once the system reached steady state
  • Seven motors tested
    • Astroflight 90, 60, 40
    • Graupner 930-7 10V
    • Graupner Speed 700 12V, 9.6V, 8.4V
About the AstroFlight 90:
Model p/n 690
Name CO-90 Direct
Gear Ratio Direct
Arm Winding 10 turns #22
Resistance 0.111 ohms
Speed 256 rpm/volt
No Load 3.0 amps
Best Battery 32 to 36 cells
Max Amps 35 amps
Prop Rpm 8,000/10,000
Best Props 13x8 to 16x8
Power Watts 1100 to 1200
Length 3.70 inches
Diameter 1.68 inches
Weight 32 ounces
Mtr Shaft  1/4 inch dia
Prop Shaft  5/16 inch dia

Experimental Setup

Experimental Data