Hi guys, I am thinking a homebuilt aerobatic plane and am asking for your opinion on my idea: The fuselage is of course 4130 steel tubes welded frame. The point is the wing: I am thinking about using exact the same Long-EZ's wings technique, i.e. solid form core+fiber glass cover. Why? Because I...

Folks-- This is really something I should know and I am a little embarrassed that I don't. The topic is brake bleeders. Not the fill fitting on the bottom of the calipers, but rather the device one uses to push brake fluid uphill into the system (I fill from the bottom up, which works very well...

Marchetti SA1 yr unknown. Can anyone tell me if one has to vacumn at the wheel cylinders and apply fluid at the brake pedal cylinder? Or is it best (easier) to vacumn at the brake pedal and insert fluid at the wheel? This is for a friend and he has no books for his plane. Also, what should the...

Can I connect aluminum AN fittings to steel hose ends? I am planning on using Earl's Speed-Flex hose with Speed-Seal hose ends on my Avid Mark IV with Grove gear and Matco brakes. Will there be corrosion from the mating of dissimilar metals? Thanks.

I want to use the ACS Model A-600 brake reservoir. It's the kind that screws directly into the master cylinder port. Because of conflict with the pedals I'll have to put one on the right master cylinder on the pilot's side and one on the left master cylinder on the copilot's side. Will this...

For one of my different hobbies...does anybody have a good source for brass or copper sheet? I'm thinking something around 0.025" or 0.032" and two pieces that are about 30" X 30" or so each. Would I need to take out a second mortgage to obtain pieces like that? Scott

I just had my cylinders overhauled and now have 2 hrs on the engine. I have been getting some mixed information about the proper break-in procedure. Run "rich" or "lean"?. I am running 40 weight mineral oil. Some say it is important to run hard and lean to prevent the walls from glazing others say...

Installing a 540 in a Skybolt and running the obligatory breather tube along the length of the fuselage and out the rear in the usual manner. Was planning on a 3/4" diameter tube, is that big enough? TIA, Scott

This lady, Brenda Anderson, is a class act and an invaluable asset to EAA. Merry Christmas, Brenda, and thanks for all the E-Grams and your classy work for EAA. BTW, nice post by Jerry Springer publishing a letter from Jon Johanson. That guy is a class act too.

http://www.rcshowcase.com/html/engines/rcs400.html 20 lb, 23hp 400cc 5 clyinder radial. This engine has got to be getting close to bridging the gap between ultralight and RC (understanding it is expensive for an ultralight) What could you do with this? twin engine PBY ultralight? (twin...

Hello I'm trying to ID an aircraft which appeared in a recent copy of the Driffield Times in the UK http://members.lycos.co.uk/driffieldflyer/ for more info Cheers Phillip Rhodes

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I've been under the impression that 4 stroke engines get better gas mileage in aircraft due to their higher BSFC numbers. But I've recently realized that since the 4 stroke engines are so much heavier than a same horse powered 2 stroke you end up having to design a larger aircraft (and engine) to...

I'm looking for input regarding the amount of air to blast through a cockpit to offset the effects of solar heating under a large canopy. This is one of those situations in which I have two little devils sitting on my shoulders. One (an engineer, natch) is telling me that three NACA's of a...

I was reminded, in an off line conversation, that UV intensity increases with altitude. Therefore, the skin cancer risk that I always regard as exagerated at sea level is much more worthy of concern--and therefore of prevention--at altitude. The higher you go the more important it gets,...

I have been reading up on seaplanes (Seaplane Operations, by Cesare Baj and Dale DeRemer) and one frequently repeated fact is that it is very hard to get a seaplane up on the step on glassy water, because the lack of bubbles under the float/hull causes the heel of the float/hull to adhere to the...

Anybody know who's flying the yellow Bucher Jungmann around the Port Orchard, WA area? I'd like to get a picture of it. Heck, I'd like to HAVE it! Rich S.

Hello, does anybody have drawings/plans or any other technical documents about the Bucker Bu 133 Jungmeister (or know someone who has)? Thanks in advance for the answer Kai Glaesner

New to riveting here. Reading on basics show the impact on the manufactured head is transmitted along the rivet and forces the bucking bar off the bucktail. It then slams back, causing the rivet shaft to begin to deform. Because the bucking bar needs to move, does this mean it can not be clamped...

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