Piper Cub SOP

Question 1

Pre-start Checklist

Answer 1

1. Chock Wheels
2. Magnetos OFF
3. Fuel Cut-Off ON
4. Carburetor-Heat OFF
5. Prime 0 STROKES: ABOVE 16°C (> 60°F)
   1 STROKES: 4° - 15°C (40° - 59°F)
   2 STROKES: 0° - 4°C (32° - 39°F)
   3 STROKES: BELOW 0°C (< 32°F)
6. Primer CLOSED & LOCKED
7. Turn Propeller 4 BLADES

Question 2

Engine Start

Answer 2

1. Magnetos BOTH
READ & DO
2. Throttle 10mm OPEN (1/2 “)
3. Prop Area CLEAR
4. Pill Prop. w/ Snapping Motion
FOLLOW UP
5. Oil Pressure - 30 SEC
6. WARM UP AT 700 RPM
7. Engine should IDLE at 550 to 600 RPM

Question 3

Pre-Taxi

Answer 3

1. Seat Belts SECURE
READ BEFORE DO
2. Altimeter QNH
3. Radio & Intercom ON & SET
4. Controls & Trim FREE & CORRECT
5. Primer CLOSED & LOCKED
6. Carb.-Heat OFF
7. Brakes CHECK
8. Instruments CHECK

Question 4

Before Takeoff

Answer 4

C- C ontrols FREE & CORRECT
I- I nstruments CORRECT
G- G as (fuel) ENOUGH, GAGE CORRECT?
A- A ttitude (trim) slightly TH w/ PAX
R- R unup (into wind)
MAGNETOS AT 1700 rpm 70 to 100 rpm
Carb.-Heat 100 rpm

Question 5

Take Off

Answer 5

1. Throttle GENTLY TO FULL
FOLLOW UP
2. Aileron INTO WIND, AS REQUIRED
3. Elevator NEUTRAL
4. Rudder MOVE SLIGHTLY
5. Lift Off 40 mph

Question 6

Climb

Answer 6

1. Airspeed 55 mph
FOLLOW UP
This results in approx. 400 to 500 fpm climb
Add a few mph if winds are gusty
2. Check Instruments frequently

Question 7

DESCENT & PATTERN

Answer 7

1. Carb.-Heat ON
   FOLLOW UP
2. Throttle RETARD
3. Trim for approx. 50 - 60 mph This results in approx. 600 to 800 fpm descent
   Open throttle every few minutes to clear the plugs
4. Pattern 60 MPH (1800 RPM)
5. Base Turn-CUT THROTTLE (Or around 1200 rpm)
6. Final 55 mph

Question 8

Post Landing and Shutdown

Answer 8

1. Hold Brakes
FOLLOW UP
2. 1000 rpm for few seconds to clear plugs
3. Throttle Idle
4. Magnetos OFF – NEVER USE FUEL CUT OFF
5. Disconnect Radio & Intercom
6. Secure the aircraft (Tie-Downs A/R)
7. Do the usual Paperwork

Question 9

Air Start-Prop Windmilling

Answer 9

1. FUEL ENOUGH?
2. FUEL CUT-OFF OPEN?
   3 - LEFT MAGNETO for a few seconds
   If nothing happens
   - RIGHT Magneto for a few seconds
   Still no luck?
   Then find yourself a nice spot to put your plane

Question 10

Air Start-Prop Stopped

Answer 10

1. LOWER NOSE to windmill Prop
2. CHECK Fuel and FUEL CUT-OFF
   3 - LEFT MAGNETO for a few seconds
   If nothing happens
   - RIGHT Magneto for a few seconds
   If everything stays quiet,
   find yourself a nice spot to put your plane