Pietenpol-List: first run on Lyc. 0-290

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matronics
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Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: first run on Lyc. 0-290

Post by matronics »

Original Posted By: Jim Sury
WOW I mean WOW I know it was going to have more power but WOW thetail wanted to fly at 1300 rpms it runs great but now I have to do theW&B, I moved the engine aft 4" and the wing forward 5" ( the wing wasback 4" for the cont 65) and with bathroom scales its lookin good. But does anyone have any good scales they'd want to share? I'vethought of buying the scales from aircraft spruce (275.00 fortaildragger) but would anyone want to go on shares and pass them around?thanks much Robert B.---Michael D Cuy wrote:>> > > >> >> > Sat in my fuselage tonight for the first time.> >> >> >OCB> >> Bob- Congratulations ! Feels good, eh ?> > (now tonight after work do the same thing, but> don't forget to do a mag check before takeoff:))> > Mike C. > ________________________________________________________________________________
matronics
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Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: first run on Lyc. 0-290

Post by matronics »

Original Posted By: michael list
Check out your local farm and ranch store. They may lend you a scale. Onescale is all you need. Did mine that way. jas>>WOW I mean WOW I know it was going to have more power but WOW the>tail wanted to fly at 1300 rpms it runs great but now I have to do the>W&B, I moved the engine aft 4" and the wing forward 5" ( the wing was>back 4" for the cont 65) and with bathroom scales its lookin good. >But does anyone have any good scales they'd want to share? I've>thought of buying the scales from aircraft spruce (275.00 for>taildragger) but would anyone want to go on shares and pass them around?>>thanks much >Robert B.>>>---Michael D Cuy wrote:>>>> > >> >>> >>> > Sat in my fuselage tonight for the first time.>> >>> >>> >OCB>> >>> Bob- Congratulations ! Feels good, eh ?>> >> (now tonight after work do the same thing, but>> don't forget to do a mag check before takeoff:))>> >> Mike C. >> >>________________________________________________________________________________
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: first run on Lyc. 0-290

Post by matronics »

Original Posted By: KatyBill(at)aol.com
The bathroom scales are probably quite accurate!I keep our chapter's scales here at my place for the chapter. They are beamtype grain scales and have been calibrated. I also made up a set of bathroomscales because I needed them when the chapter scales were out of order. Theyare $6.00 scales from Kmart. We recently weighed a Kitfox using both systems. The difference was 4 pounds!Thats less than 1% error and not worth worrying about in a w&b calculation.I can't guarantee all scales are that accurate but there is a good realitycheck - weigh yourself on each one and make sure you get the same numbers.By far the most important part of a w&b on a taildragger is to have the tailelevated the correct amount. A couple of inches will really change moment armson a high wing airplane.Regards,Bob Seibert________________________________________________________________________________
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