unit 3 Flashcards
takeoff is prohibited when ice is adhering to…
ice, frost or snow is adhering to any CRITICAL SURFACE of the plane (ex. wings, tail, propeller)
explain the coal soaking phenomenon
when plane goes from cold to warm area, condensation and ice can build up on the planes skin
- wing surface warms up, but fuel is still very cold = forms frost
how does ice affect wing, propellers and windshield differently
wing collects ice = ice changes shape of wing = less lift and ore drag
ice on prop = asymmetric vibration and loss of thrust
ice on windshield blocks vision
you can not land a small/light plane on a snowy surface unless…
you can guarantee the safety of the surface (call ahead of time to ask if runway cleared)
conditions are considered to be “whiteout” when
unbroken snow cover + overcast sky = cant’ see horizon or landmarks
severe turbulence from a thunderstorm can extend up to ____ miles from the storm
20 miles
thunderstorm avoidance rules:
- don’t takeoff or land when…
- don’t fly ____ the storm
- avioid area when storm covers ____ of that area
- storm approaching
- underneath
- 6/10
when flying through a mountain:
- downdrafts occur in _____ areas, updrafts occur in ____ areas
- make a route when you can always do a _________
- must be able to complete a _____ _____ type of turn at all times
- shady, sunny
- safe forced landing
- maximum rate, minimum radius turn
for wildlife reasons, don’t fly less than _____ ft AGL
2000
T/F: i can use landing lights and strobe lights for collision avoidance
false, can’t use strobe lights when it’s cloudy (or taxiing). so yes you can use either landing lights or strobe lights, but you can’t use strobe when it’s cloudy
the CRFI (can runway friction index) tells us
CRFI = 0.1
CRFI = 1 means…
how slippery the runway is
0.1 = slippery af
1 = dry
explain VASIS vs PAPI systems
VASIS = visual approach slope indicator system
- red/red = dead
- white/white = flight
- red/white = perfect
PAPI = 2-4 light system
minimum aerodrome lighting is
two parallel rows of white lights spaced 200 ft apart for a minimum length of 420m (1377 ft)
where do you check to see if there’s any new towers on your route that’s not marked on a map?
CFS and NOTAM in your area
what is wheelbarrowing
plane going too fast on landing with a nose down attitude = too much lift that it keeps the back wheels off the runway = all weight on nose wheel
porpoising explain
touch down with all 3 wheels at same time = bounce
landing distances can be increased up to ____% when a tire hydroplanes
700%
wind shear definition
change in wind speed or wind direction
most susceptible to wnd shears if your plane is ____ ____ ____
large, heavy and slow
T/F: passengers are in control of their phone use
false pilots can decide whether or not passengers use phones
avoid a bird by
full power and climb
passenger briefing must have:
- emergency exits
- how to use seatbelt
- how to position and secutere their seat
- how to stow carryon bags
- no smoking
high density altitude = ______ performance
poor
______ temp, altitude, pressure, humidity = poor performance
high temp
high altitude
low pressure
high humidity
how is engine, propeller and wings affected by low air density
- engine = less power
- propeller = less thrust
- wings = less lift
low air density = ______ takeoff run, and _____ landing distance
longer takeoff run
longer landing distance
explain the ground effect
decrease in induced drag that the wings generate when they are close to the ground because wake vortices blocked by ground
- can use ground effect to gain speed/soft field takeoffs
danger of ground effect
when plane raises out of the ground effect, its in danger of stalling or settling back to the ground because of this influx of the previously hidden induced drag
Vx vs Vy
Vx = best angle of climb = most altitude gain per unit of distance
Vy = best rate of climb = most altitude gain per unit of time
Va explain
maneuvering speed
- as long as plane is operated at speeds slower than Va, the wing will stall before sustaining damage from too much load
how does Va change with weight of plane
heavy plane = Va increases
light plane = Va decreases
to glide for range use what speed
best L:D ratio