ETL Aviation Helicopter
Schweizer 300CB Model 269C-1
Description: The 300CB from Schweizer RSG is a piston powered two-seat helicopter with a high-inertia, three-bladed main rotor and two-bladed anti-torque tail rotor. The aircraft is powered by a Lycoming 180 horsepower HO-360 air cooled engine. Engine power is transmitted through a belt-drive system to main transmission and tail rotor shaft. An overrunning clutch permits autorotation without driving the belts of engine.
Power plant: Lycoming HO-360-CIA, 180HP at 2700 rpm
Fuel Capacity: 35.2 U.S. gallons (35.0 usable)
Fuel type: 100/130 or 100LL
Oil Quantity: 8 quarts
Electrical System: 24V
LIMITATIONS/OPERATING PARAMETERS
Maximum Weight: 1,750lbs
Maximum Cabin Weight: 600lbs
Empty weight: 1,101lbs (N725A: 1,137 w/o heater / 1,165 w/ heater)
Maximum Operating Altitude:
- Hovering ceiling: 4600ft density altitude
- Takeoff/landing: 8,000ft density altitude
- Enroute: 10,000ft density altitude
Rotor Speed Limitations (Power OFF)
- Minimum rotor speed: 390 RPM
- Maximum rotor speed: 504 RPM
Rotor Speed Limitations (Power ON)
- Minimum rotor speed: 442 RPM
- Maximum rotor speed: 471 RPM
Engine – Rotor Disengaged
- Engine idle speed: 1200-1600 RPM
- With rotor disengaged, do not exceed 1600 RPM.
- Initial clutch engagement 1500-1600 RPM
Engine – Rotor Engaged
- Minimum engine RPM: 2530
- Maximum engine RPM: 2700
- NO momentary overspeed allowed
- Maximum continuous power: 180 horsepower at 2700 RPM
- Oil pressure operating range: 55-95 psi (redline 115)
- Oil temperature operating range: 100-245 degrees F (redline 245)
- Cylinder Head Temperature Operating range: 230-450 degrees F (redline 500)
Key Speeds
- Autorotation speed: 52 knts
- Best rate of climb (Vy): 41kts
- Run on landing speed 36 kts maximum
- Normal approach: 53 knts
Never Exceed Speed (Vne)(1)
- Doors off operations Vne: 90kts IAS
- Maximum Vne 94kts
Other Items
- Solo from the right seat only
- Operation in IFR conditions prohibited
- Controllability demonstrated in 17kts winds (any direction)
- No leaning of mixture in flight
- Fuel consumption: 12GPH (N725A)
- Max range: 230NM
- Best range cruise speed: 63 kts
ETL Aviation uses the Schweizer 300CB for all Helicopter Flight Training. The 269C-1 helicopter is a safe, and easy-to-fly platform for flight training.