Stallings Aircraft Propeller

10/08/2026

09/30/2026

✈️ PROPELLER BLADE ANGLE RANGES

📌 A variable-pitch propeller can operate through different blade-angle ranges depending on the phase of operation.

● Flight Fine
• Low positive blade angle
• Used when high RPM is required, such as take-off and climb

● Flight Coarse
• Higher blade angle
• Used for efficient cruise operation

● Constant-Speed Range
• The governor automatically varies blade angle to maintain the selected RPM

● Feathered
• Blades turn toward approximately 90°
• Minimises drag after an engine failure

● Ground Fine
• Very low blade angle
• Used for ground operation

● Braking / Reverse Range
• Blade angle moves through 0° to a negative angle
• Produces reverse thrust to assist deceleration after landing

📚 ATPL Exam Tip

Fine → high RPM
Coarse → low RPM
Feather → minimum drag
Reverse → braking

08/10/2026

Will and Mason finishing up a Baron 55 this morning.

Mason performed the ground runs and leak checks and Will is putting the final touches on installing the spinners.

06/26/2026

05/02/2026

Working second shift picking up/delivering.