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Hi Steve,

I'm making some tanks for my 801 and am going with proseal and rivets too. My plan is to seal and rivet the filler neck flange even though edge distance will be minimal. The attached pi ...

Larry,

Can't seem to spend my entire work day working...

I'm materials engineer and use electron microscopes on a regular basis. It's good practice for me to look at "non-routine" ...

Thought I'd share some pictures I took showing what an Olfa Knife does to aluminum.

Regards,
Ben Church

Doug,

Some confusion can creep in here. Strength can refer to the rivet material itself or the joint which the rivet forms.

Shear strength numbers I have seen appear to me to refer to strengt ...

Howdy Jake,

I got my tools from different sources. No clear idea if I saved much money because I got more / different items than what is included in the Zenith kit. I think I did save a little mo ...

Thanks, Ken. Glad you liked it.

There were a few areas on the corroded surface where the base alloy was relatively clean. Areas like that are generally rather feature-less and so taking a picture ...

Just realized I asked a similar question before...

http://forums.matronics.com/viewtopic.php?t=46919

Embarassed

do not archive

So it's winter in Wisconsin which means my unheated detached garage is even colder than OAT! I've made room in the basement so I can do some work there over the next few months. I'm done with the ta ...

Here is a copy of the report I sent to Bill. Sorry about the large file size - for some reason the PDF didn't reduce the file size all that much.

Regards,
Ben

Took a quick look at the Durafix web site that Kevin mentioned. I didn't see anything on composition but based the listed melting point and specific gravity numbers they list (732 F, 6.7 g/cm3) I'd s ...

Thanks for taking the time to check your wings. So what would everyone recommend for a possible fix? Should I try and remake the entire root rib? Should I cut off the rear flange on the root rib a ...

John, Thanks for the great reply.

I've re-measured my root ribs and main ribs from both left and right sides and all are the same length. Since the root rib attaches 1) to the inside of the rear s ...

I'm working on the right wing and ran into a problem with the root rib. When I locate the root rib, the rear spar deflects rearward 6 or 7 mm. The distance between the main spar and rear spar at all ...

I'm looking for some advice about build sequence. Should the wings be made prior to the slats / flaperons, vice versa, or is it unimportant? I read ahead in the manual but nothing jumped out at me s ...

Carlos,

I'm a materials engineer and would like to offer my advice. What you should do is confirm a) chemical composition and b) mechanical properties. Chemical composition can be done easily via ...

Rick,

The "T6" refers to the heat treatment as being solution heat treated and artificially aged. The -511 is added to specify applicability to extruded rod, bar, tubes or shapes when st ...

Good eye. I re-read the page I referenced and it does seem a nylon washer was used and not a bushing.

Thanks for pointing that out.

- Ben

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Howdy all,

I've been reading Gary Liming's web site and noticed he made a modification to the elevator hinge plate. He used 0.090" 6061-T6 to make his own outboard elevator hinge plate instea ...

Jeff,

I just started working on my 801 a couple months ago and so I'm quite a ways away from the fuel system - but I've thought of a header tank as well. Would you mind sharing your current plans ...

Jim,

I was wondering if you've purchased / received the DeltaHawk engine. I live in Racine, WI and have run into the owners of DeltaHawk on several occasions (nice people, by the way). It seems t ...