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PRE FLIGHT CHECKS

 

Weight
- Is the model too heavy?
 

 

Balance
- Is the center of gravity (fore and aft) within the range shown on the plans?
- Is the model balanced side to side? (right and left wings of equal weight)
 

 

Alignment
-
Are all flying surfaces at the proper angle relative to each other?
- Are there any twists in the wings? (other than designed)
 

 

Control Surfaces
-
Are they all securely attached? (i.e. hinges glued, not just pushed in)
- Are the control throws in the proper direction and amount? (usually indicated in the plans)
 

 

Control Linkage
-
Have all linkages been checked to make sure they are secure?
- Are all snap-links closed?
- Have snap-links been used on the servo end? (They are more likely to come loose when used on the servo)
- Have all screws been attached to servo horns?
 

 

Electrics Motor, Engine and Fuel (if applicable)
-
Has the motor / engine been thoroughly tested?
- Are all engine screws tight?
- Has the motor / engine been run up at full throttle with the plane's nose straight up in the air? (To make sure it won't stall when full power is applied on climbout)
- Is the fuel tank level with the flying attitude of the plane?
- Is the carburetor at the same height (not above) as the fuel tank?
- Is the fuel tank klunk in the proper position and moving freely?
 

 

Radio
- Has a full range check been performed?
- Has the flight pack charge been checked with a voltmeter?
- Have the receiver and battery been protected from vibration and shock?
- Is the receiver's antenna fully extended and not placed within a fuselage with any sort of metallic covering?
 


After Repair
-
The checklist should be gone through again, with particular attention to the areas that were worked on or repaired.
 


Before EVERY Flight

- Start the engine (if applicable) and test the entire throttle range. Run it at full throttle with its nose in the air for 15 seconds or so.

- Check the receiver flight pack with a voltmeter to ensure enough charge.
- Check the control throw direction for all surfaces. It's very easy to do a repair or radio adjustment and forget to switch these.

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