What are the three types of airframe construction?
Truss, monocoque, semimonocoque
Airframe construction where the structural skin supports tensile and compression loads
Airframe construction where stressed skin supports tensile loads, and longerons and ribs prevent compression
What is a conventional landing gear?
What are the types of landing gears?
Fixed, retractable, conventional, tricycle
What is the advantage of retractable landing gears?
Reduces parasite drag in high speed aircraft
What is another name for mechanical retractable landing gear?
What is another name for hydraulic retractable landing gear?
What type of brakes do modern aircraft use?
Hydraulic disk brakes
What type of brakes do larger aircraft use?
Power assisted brakes
What is the benefit of controlling brakes individually?
Can aid in taxiing
Name the different types of flaps
Plain, split, slotted, fowler
What type of flaps does a Cessna 172 have?
Describe the advantages and disadvantages of a two stroke engine
Advantages - simplicity, high power, and low weight Disadvantage - not very reliable
What type of engine is most popular and why?
The four stroke engine, because of reliability and efficiency
What is the purpose of mixture?
To select how much fuel gets mixed in with incoming air
What is the purpose of the throttle?
To select how much air/fuel mixture goes into the cylinder
Describe the following engine designation: O-320-E2D
O = Opposed
320 = 320 cubic inches
E = crank case design
2 = crank case model number
D = accessory case design
Describe the following engine designation: R-985
R = radial
985 = 985 cubic inches
Describe the following engine designation: V-1710
V = vee type
1710 = 1710 cubic inches
Describe the following engine designation: TSIO-520
TS = turbo supercharged
I = injected
O = oppossed
520 = 520 cubic inches
Describe the following engine designation: LTO-360
L = left turning
T = turbocharged
O = opposed
360 = 360 cubic inches
Name the four different types of aircraft cooling
Liquid cooling, air cooling, oil cooling, fuel cooling
What cooling system is most popular?
Why isn't liquid cooling used anymore?
Extra weight and complexity
What types of flaps do air cooling systems use? What are they used for?
Cowl flaps are used to regulate airflow through the engine. They are opened during taxi, takeoff, and climb to maximize cooling. They are closed during descend and cruise to reduce drag and keep the engine warm
When are oil cooling and fuel cooling used?
To supplement air or liquid cooling
Describe how fuel cooling works
Fuel is cooled as it is vaporized in a carburetor. This combined with a rich mixture will cool the engine
What is the purpose of the magneto?
Generates high voltage electricity to power the engine spark plugs
How many magnetos do standard aircraft have?