Re: Hints for Cat IV LPP flying

From: ykleetx <ykleetx_at_gmail.com>
Date: Thu, 04 Mar 2010 01:33:34 -0000

Thank you for the feedback. I'll start tonight with

1/4 motor of .60g will try .093" and .083"
ballast for full 2.5g motor -- plane weighs 5.6g at launch
prop pitch 18.5"

And see how it goes.

I'll ask about the motor sleeve later :-)

-Kang

p.s. I've been flying my daughter's 2010 SO plane. (competition is over.) The best I could do is 3:45 at 30' no touch. Let's see how the LPP goes.

--- In Indoor_Construction_at_yahoogroups.com, "Bill Gowen" <wdgowen@...> wrote:
>
> I'm not a great LPP flyer in Cat 4 but I would guess you would do best with something in the range of 2 1/4 to 2 1/2 grams of rubber in a motor that is 20" to 22" long. You will probably need to use sleeves at both ends of the motor. Your model should be able to handle a launch with something over .4 in-oz of torque. You may need to use less pitch to get sufficient climb but this will depend on your prop design and how much it flares.
>
> Maybe others will chime in with more or different info.
>
> ----- Original Message -----
> From: ykleetx
> To: Indoor_Construction_at_yahoogroups.com
> Sent: Wednesday, March 03, 2010 5:27 PM
> Subject: [Indoor_Construction] Hints for Cat IV LPP flying
>
>
>
> I have the opportunity to fly in Tustin in April, though I've never flown indoor before, other than coach Science Olympiad. I plan to enter LPP.
>
> I would appreciate any pointers on how to fly in a CAT IV site like Tustin. I now fly in a middle school gym where I can practice 30' no touch flights.
>
> For starters, I was wondering the approximate range of rubber size to use, especially to get to the ceiling. My prop is now set at 22" pitch. How does a 20" loop of .093" sound? Or does high ceiling flying require something like 24" of .080"? I plan on practicing using a 1/4 motor in the gym and later at Tustin to test.
>
> Thank you.
>
> -Kang
>
Received on Wed Mar 03 2010 - 17:37:21 CET