1. Aerospace 410
Aerospace Propulsion

2. DESIGN AND DEVELOPMENT OF SMALL TURBO-JET ENGINES THRUST < 100 Lbf
Prepared by : Cengiz Camci
November 2002

3. A LABORATORY DEMONSTRATION IS SCHEDULED ON THIS FRIDAY
11/22/ :00-1:10 pm
Department of Aerospace Engineering

4. There are two parts in this presentation General Small Engine Details
Engines up to a few hundred pounds
2. Sophia J-850
lbs Turbo-jet Engine
Used in our laboratory demonstration
THIS FRIDAY !!! 12: 00 pm

5. 1. General Small Engine Details
Engines up to a few hundred pounds
Department of Aerospace Engineering

16. 2. Sophia J-850 19 lbs Turbo-jet Engine
Department of Aerospace Engineering

17. 130,000 rpm 19 lbf turbojet engine

18. Sophia J-850 Engine Compressor Single Centrifugal
Turbine Single Radial
Combustion chamber Annular
Maximum Thrust kgf lbsf
Maximum Rotor RPM ,000
Maximum Airflow kg/sec
Compressor Ration

21. Maximum Exhaust Gas Temp. 800 C 1472°F
Full Throttle Exhaust Gas Temp. 750 C 1382°F
Low Throttle Exhaust Gas Temp C °F
Maximum Fuel Consumption 270cc/min
Fuel Feed Gear Pump with DC Motor
Throttle Control Automatic Start/Shutdown,
ECU-Controlled
Lubrication Total Loss Oil
ECU-Controlled Pump

22. Ignition On Board ECU-Controlled Glow
Fuel Cells 1.5 –2.0 Litters Recommended
Oil Tank 180 – 250cc Recommended
Starting Compressed Air (Scuba/Regulator,
not supplied)
Fuel JP-4,White Gas,Coleman Fuel
Jet A-1
Oil Turbojet Oil Exxon 2380,
Castrol 5000,MIL-L-23699E

36. Sophia J850 Engine Compressor Single Centrifugal Turbine Single Radial
Combustion chamber Annular
Maximum Thrust kgf lbsf
Maximum Rotor RPM ,000
Maximum Airflow kg/sec
Compressor Ration

37. Aerospace 410
Aerospace Propulsion