Aircraft Systems

Question 1

What is propeller synchronization?

Answer 1

A propeller synchronizer (prop sync) installed to eliminate the annoying “drumming” or “beat” of propellers whose rpm are close, but not precisely the same. To use prop sync, the propeller rpms are coarsely matched by the pilot and the system is engaged. The prop sync adjusts the rpm of the “slave” engine to precisely match the rpm of the “master” engine and then maintains that relationship.

A small gauge mounted in or by the tachometer(s) with a propeller symbol on a disk that spins. The pilot manually fine tunes the engine rpm so as to stop disk rotation, thereby synchronizing the propellers.

Prop sync should always be off for takeoff, landing, and single-engine operation.

Question 2

How many vortex generators are on N589P?

Answer 2

104

Question 3

If missing more that 4 vortex generators can you still fly N589P?

Answer 3

Yes, but you must use the original stall speeds and Vmc speed.