study guide Flashcards
what is the definition of a light twin
maximum takeoff weight 6000 lbs or less AND Vso is 61 knots or less
how many hours of training must you have logged to be eligible for a multi-engine add-on rating?
there is no hour requirement
what are the requirements for a multi-engine add-on rating?
- current private pilot or commercial pilot certificate
- have endorsement for practical
- pass the practical test with DPE
what hour requirements exist for an applicant seeking a multi-engine add-on rating to their flight instructor certificate?
15 hours PIC in category and class (AMEL)
you took your flight instructor multi-engine add-on in a Diamond DA-42 and hold an airplane multi-engine sea class rating, can you instruct in a multi-engine seaplane?
yes, instructor ratings are not land or sea based. only single engine vs. multi engine
the Diamond DA-42 has two engines capable of producing 135 horsepower each, for a total of 270 horsepower, is a high-performance endorsement required to act as pilot in command?
no, only for aircraft with an engine of more than 200 hp (alone, not combined)
what are the four forces of flight? how do they differ in multi-engine aircraft?
thrust, lift, weight, drag
they are stronger and more amplified
how does the addition of a second engine affect the overall life and drag of an aircraft?
lift: does not directly increase lift, but enhances overall performance (climb rates, useful load)
drag: increases drag, due to additional surface area (parasite) and aerodynamic complexity (induced)
where is the thrust centerline on the DA42?
??? ask the question
what is asymmetric thrust?
thrust produced by one engine is different than the other engine
how an asymmetric thrust occur?
engine failure, throttle imbalance, variations in engine performance
how does asymmetric thrust affect performance?
any thrust reduction reduces overall performance (climb rate)
it also causes a yawing force that must be counteracted with rudder
what are the drag factors on a light twin?
parasite: affected by aircraft’s shape and skin (extra engine -> more skin -> more complex shape)
induced:
