Ex 10 (Range and Endurance) Flashcards
What are the 2 main types of drag?
- Lift induced drag
- Parasitic drag
Which drag decreases with airspeed? and which increases?
Parasitic drag increases with AS
Lift induced drag decreases with AS
What is max range?
Maximum distance than can be flown by the aircraft
What is max endurance?
Maximum time flow by the aircraft
When do we use max range conditions?
When:
- Trying to save fuel
- Trying to reach destination without re-fueling
When does the max range occur WRT to drag?
Min drag condition (maximum CL/CD ratio)
What is the entry procedure for maximum range?
LOOKOUT!!
Cockpit checks
What is the experimental procedure for entering the max range condition?
Lookout CC Adjust cruise conditions Note airspeed Reduce airspeed by 100RPM Note decrease in RPM Maintain constant altitude by pitching up Note point at which speed drops by a lot Increase RPM and maintain altitude Adjust yaw Adjust lean mixture
What is the recovery procedure?
Carb cold Mixture rich Full power Maintain pitch control for constant altitude Trim
When to use max endurance?
Waiting for weather to clear up
Holding pattern for landing
What is the entry procedure for maximum endurance?
LOOKOUT!!
CC
What is the experimental procedure for entering the max endurance condition?
Start at cruise conditions Reduce power in 100 rpm decrements Maintain altitude by pitching up Reduce until altitude cannot be maintained Increase by 100rpm and hold
