--- In Indoor_Construction_at_yahoogroups.com, "Rick121x" <rickie121x@...> wrote:
>
> ...I would very much like to achieve a longer cruise time and and with slower descent. Is there anyone with experience to suggest the next logical step to me to take?
>
Hi Richard,
First of all, great job on the plane, and great job learning a lot of Indoor nuances. Your partial motor setup looks correct, and it sounds like you have the model trimmed nicely.
Keep in mind that your 15" diameter prop is allowed in Pennyplane, but not the more restrictive Limited Pennyplane. You'll need a 12" prop for the latter.
Also, you appear to be keeping good records. You'll want to add a few metrics, though. "Turns in" is important, along with your launch torque. Turns left is valuable, too.
From the description of your winding technique it sounds like you are winding up to a launch torque, rather than almost to max and then backing off to your desired launch torque. The second method is an easy way to get more time.
Your prop RPM sounds a little low for a PP. Your prop pitch might be a bit too high, which can actually be a tricky thing to measure. It looks like you have a "can formed" prop blades, which is fine – it can just make determining the effective pitch more difficult. Don't assume that a measurement at one spot on the blade will give you the effective pitch of the whole prop – it is better to measure a few spots and calculate the pitch at those stations. Then you can look at the actual pitch distribution and see if it is what you want.
Some others may be able to help you more based on your description, but personally I do better when I can see the plane in the air. Where do you fly? Perhaps we can hook you up with some experienced Indoorists.
Second best option is posting some video, if you've got the gadgets to do it.
Received on Thu Apr 19 2012 - 16:02:59 CEST
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:47 CET