I'm pretty sure your pitch is too high, or you are using too thin rubber. I
suggest buying fatter rubber if you think you can't change the pitch. I
assume that the diameter for your propeller is 18.5cm, I suggest going at
35-37 degrees for the pitch, trying using a pitch gauge. if you're able to
get close to 200 turns, you're definitely using REALLY thin
rubber.....you're probably using 1/16 rubber. Try using 0.085, which should
go upto 150.
On 2/20/07, jimranor7 <lejinuni_at_gmail.com> wrote:
>
> Hi, I am a high school student. I have a Harlan Cruiser 67 and I cannot
> get it to climb up to the ceiling. I hear people talking about hitting
> the ceiling and falling, but my plane will only go up like 6 or 7 feet
> and start descending. The width of the rubber band is whatever came in
> the kit, and the pitch is as it is for I don't know how to change it
> without breaking it (I broke 2 of my extras so far). I change the pitch
> by twisting it in the center, but it never works. The plane has a
> positive angle of attack. I wish I can see it go up and hit the ceiling
> because the plane isn't that impressive when it isn't flying high. The
> propeller is not spinning fast enough, i think that is why. What shocks
> me the most is that I put more 100 turns with the 15:1 winder and close
> to 200, and it went only 6, 7 feet. The best time I had was 34 seconds.
>
>
>
[Non-text portions of this message have been removed]
Received on Tue Feb 20 2007 - 20:20:43 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:44 CET