Systems

Question 1

Explain the electrical system

Answer 1

• 14v System, utilizing push-pull circuit breakers
• 12v, 35 amp battery
• Two 65 amp, alternators
• Voltage regulators maintaining 14v per alternator

Question 2

What type of heater do we have

Answer 2

Janitrol gas combustion heater

Question 3

Where is the heater located

Answer 3

In the aft baggage compartment, behind the compartment close off

Question 4

How is fuel supplied to the heater

Answer 4

Downstream from the left fuel selector and fuel filter

Question 5

What rate does the heater use fuel

Answer 5

1/2 gallon per hour

Question 6

Are there any protection systems for the heater

Answer 6

There is an overheat switch will render the heater inoperative if any malfunction occurs
(this will illuminate a red OVERHEAT light on the consul)

Question 7

What de-ice and anti-ice equipment is equipped

Answer 7

• Pneumatic wings/vertical stabilizer/horizontal stabilizer
• Wing ice detection light (left wing)
• Electro-Thermal propeller de-ice pads
• Electric windshield panel
• Heated stall horn (lift detectors)
• Heated pitot tube

Question 8

How do the pneumatic boots work

Answer 8

• Engine driven pressure pumps apply a constant suction to the deicer boots to provide a smooth and streamlined surface
• Activating the the de-ice switch actives the pnematic control valve for six seconds and a blue light will be displayed during this
• After 6 seconds the boots deflate and go back to vacuum hold

Question 9

How does the prop de-ice work?

Answer 9

• Electric thermal pads bonded to the leading edge will heat the blades, these thermal pads heat the blades in a time sequence
• There is a visible ammeter that monitors current

Question 10

What stall warning devices are equipped

Answer 10

• On the left wing we have an inboard and outboard stall tab
• the inboard tab announces stall warnings for flaps 25 or 40
• the outboard tab announces stall warnings for flaps 0 or 10
• A squat switch on the left landing gear prevent the stall horn from going off

Question 11

How much useable fuel does the Seneca II have

Answer 11

• Normal fuel tanks: 93 gallons useable
• Auxiliary tanks: 123 gallons useable
• Unusable fuel: 5 gallons (2.5 per wing, regardless if aux tank or not)