stunthanger.com

Electric Stunt => Gettin all AMP'ed up! => Topic started by: John Witt on June 03, 2009, 06:22:21 PM

Title: Line pull Excel spreadsheet
Post by: John Witt on June 03, 2009, 06:22:21 PM

I've written a small Excel sheet to calculate line pull at different heights above ground. I just found that I can't post it, so e-mail me if you'd like a copy.

I'd be interested to get your feedback and additions or corrections.

The calculated pull feels about right for my Panther.

John

Title: Re: Line pull
Post by: John Cralley on June 03, 2009, 06:36:35 PM

Humm, have you tried copy and paste into your message or do you have it set up for feeding in parameters and getting line pull calculated? If the latter, you may well be blocked from posting here.

Title: Re: Line pull
Post by: Mark Scarborough on June 03, 2009, 07:00:10 PM

I would like a gander at it if you please? thanks,email in profile

Title: Re: Line pull
Post by: Alan Hahn on June 03, 2009, 07:35:41 PM

Quote from: John Witt on June 03, 2009, 06:22:21 PM

I've written a small Excel sheet to calculate line pull at different heights above ground. I just found that I can't post it, so e-mail me if you'd like a copy.

I'd be interested to get you feedback and additions or corrections.

The calculated pull feels about right for my Panther.

John

Out of curiosity, do you assume the same laptime, or same airspeed??

Title: Re: Line pull
Post by: John Witt on June 03, 2009, 07:41:21 PM

You need to run it in Excel, so cut and paste won't work, though I could post a screenshot, I suppose.

I assume a constant air speed, calculated from the laptime.  User enters lap time, circle radius (line length + arm + distance to A/C center) and airplane weight.

JW