Matronics Email Lists

Awesome Steve, thanks a lot that helps quite a bit. Looks like your finger got caught somewhere you didn't want it to! Ouch.

Scott,
Looks like you are right. Zenair must have updated the plans and switched the numbers around. The pieces come pre-fabricated for me, but I imagine it would tick me off if I scratch built the ...

Scott and gang,
I reviewed the errata again and found something of note. I bought those new CAD plans when they came out about a year ago and found something interesting. Here is the errata in ques ...

I am still on my wings, and haven't actually sat in the back of a 640, but from the one I scrutinized at AMD in Georgia it appears to have about the same dimensions as a Cherokee. I think it's easier ...

I ran across a couple more questions about the fuel tanks if anyone can help:

The fuel sender float arm needs to be bent. Does anyone have a measurement of how far back from either end it needs to ...

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Hey Scott,
I went to your errate page and it said there was no text. Did i do something wrong?

Hey Steve Welcome!

Building from plans is ambitious! Good luck. I am building from a kit, and am about 80% done with the right wing. I ask for help on the forum all the time and everyone is eager t ...

Ok, so I have another question on the wing tank. The plans say that from rib #5 to rib #1 there is approximately a 12 degree increase when the wing is flat on the table. When I use a level and angle m ...

oh, I'm not in a huge hurry. I think I'll be ready to seal up that side of the wing in about 6 weeks. I ran into a slight snafu with the rear ribs. (Check out my aileron bellcrank post I'll submitting ...

Hey Craig,
I'm on the right wing, and probably going a bit out of order. I started the wings with the top up, not realizing that bottom up may be the better method. Anyway, I also jumped ahead a bi ...

Thanks Steve, I did stumble across a factory pic of that grounding attachment while browsing the disk luckily. It made me start thinking of all the little things that aren't mentioned in the IPLs... I ...

Thanks for the pics and info guys. That does help. I'm not sure why they call this a 51% kit. I seem to be doing a lot of planning and engineering on my own! Anyway, I updated my signature block to in ...

Does anyone have pictures, or any factory information, on how the fuel tanks are supposed to fit into the wings? Are they mounted in somehow, or do they just sit in there and rest on the skins? I saw ...

I sent you a private message Craig..

Cool, thanks for that Craig. I had to put the flaps away for a bit and move onto the ailerons because Zenair sent me the wrong size piano hinge!! They sent me two sets for the ailerons, none for the f ...

Thanks Craig,
By looking at the drawings, it would seem that structurally it shouldn't matter which way they face. But the drawings DO specify which way they should go. I did call Zenair, but about ...

Ok, so I'm a bit lost on the wing flap ribs and their placement. I sorted them all out using the plans, but think I was sent too many of one side and not enough of the other. I was wondering if it mat ...

Well, I looked pretty thoroughly and haven't found any CAD drawings on the disk yet. There are a lot of JPEG pics, .pdf files with pics and links to an explorer (or firefox, that's what I use) type br ...

Hey Craig,
Sorry for the long span in between replies. We had a lot going on there at the end of our deployment and a family emergency didn't help either. But, I'm finally back home and building ag ...

Craig, I had the same questions and took a middle of the road approach to the issue. I riveted about half way up the rear skins on both sides. This held the entire assembly together much better and he ...