Engine and Propeller

Question 1

What type of engine is installed in your aircraft? Brief description.

Question 2

What are the four strokes of a reciprocating engine?

Answer 2

Intake, compression, combustion, exhaust

Question 3

Why do we have 2 magnetos per engine? What safety checks do you do?

Answer 3

• Redundancy & safety
• On the runup checklist you check each magneto, you are looking for less than
  175rpm drop and 50rpm difference between the magnetos

Question 4

What is the main difference between carbureted and fuel injected?

Answer 4

Carb: Mixes fuel & air before entering the cylinders

Fuel injected: injects fuel directly into the cylinders

Question 5

Explain how a turbocharged engine differs from a normally aspirated engine, particularly at high altitudes.

Answer 5

• Normally aspirated relies on natural pressure from altitude
• Turbo compresses intake air, allowing higher density even at higher altitudes

Question 6

What kind of propeller do we have? Piper Archer?

Answer 6

Sensenich, fixed pitch, 76”