PPL Deck 1 Flashcards
(319 cards)
VFR requirements (distance and ceiling), MVFR
5sm, 3000ft
3-5sm, 1k-3k ft
Define cloud ceiling + difference between broken and overcast
Lowest cloud layer
Overcast - solid
Broken - spotty
Takeoffs and landings ideally ___ (direction) the wind?
Into.
Aircraft performs better in warm or cold weather and why?
Cold, air is more dense
Acronym for basic instruments in an airplane and what does each do?
Which ones need to be adjusted prior to/during flight?
AAHTAV Airspeed Altimeter (adjust prior to and during) Heading indicator (adjust during every 15 mins) Turn coordinator Attitude indicator Vertical speed indicator
Define colors on airspeed indicator
White - operating range of flaps
Green - normal operating
Yellow - smooth air only
Red - Vne
Statute and nautical miles = how many feet? How to convert knots to statute miles?
1 statute mile = 5280 ft. 1 nautical mile = 6076 ft
1 nautical mile x 1.15 - statute miles
Differences between compass (where is it located?) and heading indicator?
Heading is gyroscopically stabilized, not affected by speed/banks/turns
Compass typically located away from electrical and metal to reduce impact of local magnetic fields
Turn coordinator, another name for the ball, what forces does it measure, and what does it measure and how to fix if turn is not coordinated (and what is it called and also define each)?
Inclinometer; centrifugal, gravity, resultant forces; slipping or skidding?
Slipping: angle of bank is not enough for rate of turn
Describe control surfaces and how each work. Relationship of drag and lift?
Aileron (yoke left = left aileron up…down aileron has more drag and more lift…yoke down pitch down/elevator down)
Elevator - determines speed of airplane
Trim - maintains speed of airplane and reduces control pressures needed to maintain
Rudder
Define adverse yaw and how to fix
What does throttle and mixture control do?
Throttle - similar to accelerator in a car
Mixture = ratio of fuel to air
What does using flaps do?
More lift at lower airspeed
How does a plane stay in the air? (think propeller/wings/wing design)
Propeller - forward
Wings - up
Wing design - curved upper part of wings, low pressure up top, high pressure on bottom, air velocity accelerated over top creating the lift to keep plane in the air.
Phonetic alphabet and numbers
Name 4 forces
Lift, weight, thrust, drag
Describe a 4-stroke ICE
Typical engine in a trainer aircraft Intake - Compression Power Exhaust
Describe 6 major parts of an engine
Piston Cylinder (2x spark plugs per) Valves Connecting rod Crankshaft Crankcase
More cylinders = what?
Smoother engine because more rotation/RPM’s per cycle
How are most engines cooled?
Air-cooled
Oil cooled
Exhaust pipe
Name several purposes of engine oil
Cooling Lubrication Prevent direct metal to metal contact Seal Contaminants
Two major types of engine oil and when they are used?
Mineral oil - brand new engines
Ashless dispersant oil
Why are airplane engines so reliable?
2x magnetos; run independently of electrical system; 1x magneto can fail and still be fine + 2x spark plugs per cylinder
What does this mean - vented fuel caps?
Allows air to replace spent fuel