My dynam hawk sky airplane came with 2    5 by 6      propellers, but I can't find any replacements. The closest one I can find to the right size is 6 by 4. But the propeller cannot have a 6 inch diameter because it would hit the planes body. Does anyone know of anywhere to by a 5 by 6 basic propeller?   Places with big bulk would be nice.

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  • From the specs it looks like moving up to a 6x4 results in a big improvement.

    http://www.graysonhobby.com/catalog/images/MicroV3-Stats.jpg

    It can probably fly straight up although it looks like the motor starts getting hot at full throttle. I would cut a notch out with a hot wire or an exacto knife and run the bigger prop. You won't be disappointed.
  • Here is a picture of my stock propeller. It is clearly a 5x5.

    Hawksky stock propeller

    When did you get your hawksky? All of the ones I have seen this year have had this propeller. I wonder when they switched.

    What is the kv rating of your motor? I saw claims over at rcgroups that the stock motor is around 2200 kv. I crudely measured the air velocity behind the propeller to be about 4500 FPM. If my calculations are correct this comes out to be nearly 11,000 RPM with a 5x5 prop. Does your motor spin this fast?
  • I believe that my hawksky cam with 5x5 props. Nitroplanes and Hobbypartz both sell 5x5 replacements.

    http://www.nitroplanes.com/60p-dyp-1001-propeller.html

    http://www.hobbypartz.com/60p-dyp-1001-propeller.html

    Even though the hobbypartz version is listed under the EXI brand name it is equivalent to the Dynam part down to the part number.

    However I recommend upgrading the power system on the hawksky. I put in a 2409-12T motor, a 30 amp ESC and a 7x6 prop. I had to cut a notch out of the fuselage for propeller clearance. Granted my stock motor was poor quality to begin with but the increase in performance was very dramatic.
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