Larry Gouge Flashcards by Kaitlyn Jarrett

Fuel System

110 gallons total
108 gallons usable
able to crossfeed in level flight
combustible engine

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Electrical system

battery - 12 volt 35 amp
Alternator - 14 volt 70 amp
attached to accessory case - engine driven

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what are some systems powered by the electrical system

radios, lights, GPS, gear

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can one alternator support the whole system

yes

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how would you detect alternator failure

light or amp meter

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what happens to the gear in an electrical system failure

manual extension - can not retract

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How does the gear work

electrically activated
hydralically actuated
gear held up with hydraulic pressure
gear held down by springs and down lock hooks

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how do you ensure the gear is down if the electricity fails

mirror
ask atc
use caution with this act can not guarantee anything and the mirror is for only nose wheel

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propellers

counter rotating
hydraulically actuated
fully feathering

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what do our counter rotating props mean to our plane

no critical engine - yay

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what are the important marks on our airspeed indicator

Vmc - red line
Vyse - blue line
VNE - red block section
flaps range - white section

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Vso

55
bottom of white line

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Vmc

56
bottom red line

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VS1

57
bottom of green arc

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88
blue line

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VSSE

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VXSE

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VYSE

88
blue line

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112 - 135

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VFE

111
white line

VLE

140

VLO

109

VNO

169
top of green arc/ bottom of yellow

VNE

202 red line

what is the first indication of an engine failure

yaw and bank towards inop engine

what are the secondary indications of an engine failure

RPM drop manifold pressure drop alternator failure

what are the memory items for an engine failure

maintain directional control mixture - full forward propellers - full forward throttles - full forward flaps - up gear - up inop engine - verify/ identify - throttle idle if not enough time to try a restart inoperative propeller feather inoperative mixture cut off establish 2-3 degree bank climb airspeed - 88 knots establish zero side slip

when will you secure your engine and when will you troubleshoot

if you have time to trouble shoot and there is no reason that you can physically see that it has failed (oil or fuel spilling out of the engine) going to secure short final or on takeoff and remaining in the pattern

how much power do you lose when an engine quits

50%

How much climb performance do you lose when an engine quits

84%

what is the best single engine climb rate

use chart

what is the best two engine climb rate

use chart

during what phase of flight is a failure easiest to detect

takeoff high power = max thrust

during what phase of flight is a failure hardest to detect

Landing low power = less thrust

what is the definition of Vmc

the speed below which an aircraft control cannot be maintained of the critical engine fails (an engine)

what is the Seminoles Vmc

What is a critical engine

The engine whose failure most adversely affects the aircraft (the one with the shortest moment arm thus requiring less resisting force to maintain directional control)

Why do we care about Vmc Items

the lower the Vmc the safer the aircraft is. So if our Vmc is going to be higher than normal we need to know so that we stay well above our Vmc and do not lose directional control

What are the 12 Vmc items

Engine max takeoff power sea level critical engine inop critical engine windmilling Configuration trim for takeoff cowl for takeoff flaps for takeoff gear retracted Airframe most unfavorable CG bank 5 towards op engine max weight ground effect

what does our critical engine inoperative do to our Vmc !!!!!!!!!!!!!!!!!!!!

if it is inoperative - increase due to longer rudder arm

what does our critical engine windmilling do to our Vmc !!!!!!!!!!!!!!!!!!!!!

windmilling adds drag - creates more yaw to op engine - feathering will decrease drag - lowering Vmc

what does exceeding 5 bank toward op engine do to our Vmc

banking into op engine creates horizontal component of lift - making Vmc much lower

what does landing gear retracted do to our Vmc

gear extended gives more directional control - keel effect (like a boat) - reduce yawing - reducing Vmc

what does flaps in takeoff position do to our Vmc !!!!!!!!!!!!!!

what does most unfavorable CG do to our Vmc

more forward CG means arm is greater giving more control over rudder and more effect - lowering Vmc

what does cowl flaps in takeoff position do to our Vmc !!!!!!!!!!!!!!!!!!!!!

what does gross weight do to our Vmc

weight increases - horizontal component of lift needed increases - Vmc increases

what does ground effect do to our Vmc !!!!!!!!!!!!!

what does max power do to our Vmc

adding power raises Vmc because more power on one engine than the other increases adverse yaw - after we are stable with our engine we will take out some power and our Vmc will lower

what does sea level do to our Vmc

increase in altitude - decrease in air density - reduced engine performance and prop efficiency - decreases adverse yaw effect - decreases Vmc

what does trimmed for takeoff do to our Vmc !!!!!!!!!!!!!!!