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Dear Raptor Customers:
The stock wood blades should be operated with a main rotorspeed of no more than 1700 RPM. For 3D aerobatics
or rotor speed more than 1700RPM, it is recommended to use carbon main rotor blades. The above drawing
illustrate how to rem ove the plastic blade grips and then carefully slice away some of the covering material, and
add the "thin" type CA glue to further strengthen the wood. After installing the plastic blade grips, apply epoxy
around the seem of the plastic grip and the wood to seal it off. This adds more strength and prevent oil from seeping
through. For beginners, the best rotorspeed is around 1500 RPM. For advanced fliers, a good hovering RPM is
around 1500, and a constant 1800RPM in idle-up for 3D aerobatics.
Blade Modification
Idea and original art submitted by Randy Wishon,
Progressive Technologies, inc.
1. Mark around blade grips with a felt-tip marker.
2. Remove blade grips and cut covering lightly .125"
inside of mark, being careful not to cut into the blade.
3. Repeat for opposite side.
4. Trim bosses if necessary to allow tight fit to the blades.
5. Lightly sand inside of grips for better adhesion.
Apply Epoxy to blades in area shown top and bottom.
6. Attach blade grips and tighten screws.
7. Wipe off the excess Epoxy.
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