What engines are on the D95A?
2x Lycoming, IO-360 B1B
* 4 Cyl
* Horizontally opposed
* Naturally aspirated
* Fuel Injected
* Air cooled
* 180 hp each
* Max MP 28.5”
What is the oil capacity of each engine?
6 - 8 quarts
What is the fuel burn planned rate?
10GPH per side + 1GPH for cabin heat
Total of 21GPH w/cabin heat
What type of propeller is on the D95A?
Two-bladed Hartzell Constant Speed
* 2700 max RPM
What is different about the propellers on the D95A compared to a single engine constant speed prop?
- Nitrogen unfeathering accumulators
- Locking pins
What device on the engine accesory case maintains the constant RPM of the propellers?
Propeller Governor
Name the three parts of the propeller governor.
- Speeder Springs
- Flyweights
- Pilot Valve
What is a nitrogen unfeathering accumulator and what does it do?
A nitrogen pressurized tank that holds oil from the propeller governor on the opposite side of the pressurized nitrogen.
It can be used to unfeather a propeller, by pushing oil into the propeller governor, which forces the blades into a low angle of attack, resulting in a windmilling prop.
What are the starter limitaitons on the D95A?
10 seconds on, 20 seconds off, 6 attempts, then wait 30 min
What prevents the propeller from going into feather when the airplane is shut down?
Locking Pins
What is the total fuel capacity on the D95A?
112 gal, 106 usable
* Mains: 25 gal ea (3 unusable)
* Aux: 31 gal ea
How many fuel sumps does the D95A have?
8 (4 each wing)
What are the three fuel limitations in the D95A?
- Always takeoff and land on the mains
- Never takeoff with less than 10 gallons or in the yellow arc
- Always wait 30 seconds after a high-speed taxi
Describe the landing gear on the D95A.
Sungear torque motor turns a circular disk, connected to push pull rods, that then open and close the gear doors.
What is the “Squat” switch?
Weight On Wheels switch
Prevents retracting gear on the ground
Which direction and how many turns to manually deploy the landing gear?
Clockwise, 50 turns.
What keeps the landing gear in the up and locked position?
Mechanical up-locks
What three conditions would cause the gear warning horn?
- Manifold pressure below 12” hg…
- Full flaps…
- Weigh on wheels…
…when gear is up
What keeps landing gear in the down and locked position?
Over center linkage with spring locks.
What BTU is the cabin heater on the D95A?
35,000 BTU
How much fuel does the cabin heater burn when continuously operated?
1 gal per hour
How many fuel pumps are on the D95A?
Four
2 engine driven, 2 booster pumps
What system on the D95A is hydraulic?
Brakes
What is the voltage of the D95A
28 volts
