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[October 18, 2006]


My dad loaned me a air leak detection tool to try to find the small leaks I have in my air system. I figure that since I don't leave my windows open when the heat it on, why have air go right out of my system. The tool is pretty cool - ultrasonic sensor with a pair of headsets. Point it at a leaks and some LED's blink and you hear the leak.

One of the first things you gotta do to the rear spars is modify the four doublers as called out by Vans. You gotta go this because the -7 is a bastard child of the -8 and -9. I believe that these spars are used untrimmed on the -8, however, it is a W-707 part number. Go figure. The dimensions are on DWG 38, which of course isn't sent in the plan package, so you gotta dig through the little drawings in the back of the manual. Not a big deal usually, however the real DWG 38 has the scale of 1:1. It would of been nice to be able to make a copy of this and use it as a safety template. I don't even know why they bothered to give you the 1:1 scale drawing of this if they don't intend on shipping the drawing with the wing kit. OK, rant is over.

So anyways, all I did was play around with how to measure the cuts. I tried a couple different ways of measuring and will make the cuts tomorrow.

This is a ultrasonic sound meter from my dad. I used it to find two air leaks.


I traces one of the pieces and made some test lines on how it was supposed to be cut.


Then I made some lines on the reinforcement bar. Too tired to make any big cuts tonight, so I will slow cook this one in the brain tonight and see what ideas pop out for the next workshop session.

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