Liberty Technologies, Inc.

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Building Prototype

Model Liberty 750T

Specifications: The Liberty 750 is a two seat light turbine helicopter using a 24' Diameter, two bladed Semi rigid teetering rotor system with a 750 lb useful load and powered by a 150 hp turbine engine. It has an empty weight of 750 lbs, fuel capacity of 44 gal, and fuel burn of 16 gph at 100 knot (115 mph) cruise speed. (Max Range, 2.25hrs/.5hr reserve 258 miles) Airspeed Limits VNE (Never Exceed Speed) at sea level is 115 knots (132 mph) CAS. For reduction of VNE with altitude, temperature and N1, see FAA Approved Rotorcraft Flight Manual. Autorotation VNE at sea level is 115 knots (132 mph) CAS. Built under Kit and Amateur Built Rules.

Sample Mission Characteristics  

R22

 

 

Liberty 750T

 

130.00

Fuel

vs

270.00

Fuel

350.00

Pilot

vs

350.00

Pilot

890.00

Aircraft EW

vs

750.00

Aircraft EW

0

Cargo

vs

0

Cargo

1370.00

Aircraft GW

vs

1370.00

Aircraft GW

10.46

Max lb/hp

vs

10.00

Max lb/hp

10.48

gph Hover Calculated @ 1370 GW

vs

19.18

gph Hover Calculated @ 1370 GW

8.38

gph Fwd Flight Calculated @ 1370 GW

vs

15.34

gph Fwd Flight Calculated @ 1370 GW

1228.77

Continuous Drive Torque @ 1370 GW

vs

1439.05

Continuous Drive Torque @ 1370 GW

1298.14

Max Torque Reserves

vs

1575.60

Max Torque Reserves

5.65%

Engine Reserve Safety Margin @ 1370 GW

vs

9.49%

Engine Reserve Safety Margin @ 1370 GW

 

 

 

21.34%

More Max Reserve Drive Torque over Completion

Primary Function: Entry-level turbine trainer using two bladed rotor systems.
Designer: Liberty Technologies Inc.
Power plant: 150 horsepower Gas Turbine engine

Fuel: Jet A, Jet B, JP4, JP8, Kerosene
Rotor span: 24 ft (7.31 meters)
Length: 27.75 ft (8.48 meters)
Height: 8.75 ft (2.66 meters)
Cruise Speed: 100 Knots, 115 mph, 185.2 km/hr

VNE: 115 Knots, 132 mph, 212.9 km/hr
Standard Basic Empty Weight: 750 pounds (2,955 kilograms)

Useful Load: 750 pounds/fuel
Ceiling: 15,000 feet (4572 meters)
Range: 219nm, 253 miles (407 kilometers)
Crew: student pilot and instructor
Armament: None
Date Deployed: Jan 2006
Base Unit Cost: $150,000  engine included, Optional IFR Lite Glass Cockpit including Remote Radios $40,000.

 

Liberty 750 Estimated Operational Cost

 

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Copyright © 2006 Liberty Technologies, Inc.
Last modified: May 24, 2007