WARP DRIVE PROPELLER PITCH ADJUSTMENT
IMPORTANT - - ALL STEPS OF THIS OPERATION WILL BE
PERFORMED LOOKING AT THE LEFT SIDE OF THE AIRCRAFT. STAND BETWEEN THE LEFT WING
TANK AND IN BACK OF THE PROPELLER BLADE.
1. Hold the Degree Wheel (D/W) with the Blade Clamp in your Left Hand and the Gray Scale “0” at the top 12 o’clock position. (If the Gray Scale “0” is at the 9 or 3 o’clock positions, then flip the D/W over to the backside. Keep the Blade Clamp in your left hand.)
2. Place the D/W on the top of the belt drive plates. Rotate the inner white spoke wheel until the bubble is perfectly level. (It must rest squarely on the top edges of the front & rear plates. Be sure it is not touching the belt or side support “C” channels. The bubble vial should be positioned so that it is fore and aft.)
3. Read the degrees at the top (12 o’clock position) of the D/W by using the “0” on the inner white spoke wheel as the pointer. (Normally the nose of the aircraft will be high resulting in a reading of approximately 5 degrees up as read on the outer gray scale.)
4. If you want to run a 17 degree pitch simply count back (clockwise) from the “5” 17 increments (5-4-3-2-1-0-1-2-3-4-5-6-7-8-9-10-11-12) which should indicate 12 degrees. Rotate the inner white spoke wheel Clockwise so that the“0” is on the 12 degrees Gray Scale and lock it. (17-5=12) (Note: if the nose is low, then the example number “5” would be added not subtracted. 5 + 17 = 22)
5. Clamp the D/W on the prop blade. (Flush on the tip, aft of the blade)
6. Rotate the blade until the bubble is level. This will give you a 17-degree pitch.
CAUTION - - ALL STEPS must be performed on the left side
of the aircraft with the degree wheel positioned so that the Gray Scale “0”
is at the top 12 o’clock position and the Blade Clamp is in your Left Hand.
A. Degree wheel may more accurately determine the aircraft position if used directly on the front of the prop clamping plate BEFORE loosening the blades. This is in lieu of placing it on the reduction drive plates.(Step 2)
B. Pitch adjustment must be made with each propeller blade in a horizontal position. This is accomplished by placing a level on the leading edge (top) of each blade in turn, assuring true horizontal orientation, then installing the D/W for pitch adjustment. The propeller is then rotated so the next blade is leveled to a horizontal position, then adjusted for pitch and so on. (Step 5)
C. Place a hand held level on the face side of the degree wheel to position it perfectly vertical. (Step 5)
D. To ensure accurate readings secure the tail of the aircraft so that it cannot move. Aircraft MUST remain static during all operations. Turn propeller very carefully to ensure aircraft position is not disturbed.