OK, if you want to do bathroom scales and have a bit of time to kill & like making gadgets (sounds like a homebuilder!) then you could make up a set of lever arms to reduce the load on the scale and use just one scale per wheel. Probably cost more than buying 7 sets of scales but then there's the educational factor!
W
____________|_________________________
A Lever Arm |
|-------------------------| Bathroom Scale
Basically you want to portion the load so that the scale sees a weight proportional to the wheel weight divided by the lever arm ratio and the rest of the lever setup sees the rest of the load. Above, the pivot at A would see 2/3 the weight of the wheel (W) and the scale would see the rest (1/3W). From Charlie's measurement the 3:1 ratio sounds about right.
Cheers,
Dave
Charlie Starr wrote:
--Forget about scales. It will be a couple years minimum, before you need them. Usually scales can be found through local builders, an EAA chapter or a FBO. If all else fails, I bought seven bathroom scales at Wal-Mart for about $9 each (3 for each main gear and one for the tail wheel). After weighing again before paint, I found they were within 3 pounds (total) of electronic scales. Gave scales as Christmas presents to my fat friends last year.
Charlie Starr - N96CS
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