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larry(at)macsmachine.com
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 Posted: Sun Sep 19, 2010 5:43 am Post subject: A lighter 701 |
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An estimate of 15 lbs would be closer to the mark for the 701.
Larry McFarland 601HDS at macsmachine.com
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kmccune
Joined: 22 Sep 2007
Posts: 577
Location: Wisconsin, USA
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| Posted: Wed Sep 22, 2010 2:28 am Post subject: Re: A lighter 701 |
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Don't forget that at this point it had still 30 deg of flap so maybe it did get off the ground quicker. Just think of the little picture on the Zenith site that shows the 701 popping right off the ground and then flying down the field to pick up speed. The airframe was shorter was well, if its not there it can't weigh anything. If you want some more lightening ideas. John B has recently posted a list on the Yahoo 701 builders site.
As for how much it weighed, I agree that 480 was probably closer to the actual, just like the 580 lbs listed now is optimistic for a standard/912 build. For reference the Feb 87 plans list the empty weight as 430 to 440 with the 503, it states a max engine weight of 140lbs.
Kevin
| Benjamin Q wrote: |
The interesting thing about that web link is the performance numbers. They list the climb rate of the 80 HP 701 as 1600 ft, and the takeoff roll as 45 feet. I have a feeling this was optimistic, but if not, it shows an incredible performance increase by just decreasing the weight. |
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