Number to Memorize Flashcards
Height
high skid gear
10.91 feet
Length
41.4 feet
Baggage Max Weight
250 lbs
Baggage Max Volume
16 cubic feet
Number of Skid Shoes
7/Skid
14 Total
Engine Type
RR 250 C47B
Engine Horsepower
Thermodynamic Rating
813 SHP
Engine Takeoff Horsepower Rating
and Q
674 SHP @ 93.5-100% Q
Engine Continuous Horesepower Rating
and Q
630 SHP
RR Rating on Engine Plate
650 SHP
Compressor RPM
51,000 RPM @ 100% Q
Compression Ratio
9.2:1
Compressor Temperature Increase
291C/555F
Combustion Air Use
75-80% for cooling of internal parts
20-25% for fuel burn
~2% for sealing oil passages
Ng Speed
51,000 RPM @ 100% Ng
Np Speed
32,183 RPM @ 100% Np
Torquemeter Gear Speed
10,528 RPM @ 100% Np
Output Drive Gear Speed
6,317 RPM @ 100% Np
Transmission Speed Ratio
15.29:1 Reducing
Main Rotor RPM
413 RPM @ 100% Np
Tail Rotor Gearbox Ratio
2.53:1 Reducing
Tail Rotor RPM
~2,497 RPM @ 100% Np
Engine Anti-Ice/Pitot Heat - ON
OAT
Less than 5C/40F ambient air temperature and in visible moisture
CEFA Fuel Filter LRB pop
2.5 +/- 0.5 PSID