I have always suspected that correctness, is the refuse of those who have nothing to offer.

Reliability on this, is at best fair to unsubstantiated..... The rumor is as follows: Antique/classic/vintage/the guys south of the Communication Tower are not letting any homebuilts camp in their camping area due to the fact Homebuilts has a new camping area off the end of Papa 1. Fact: there...

I'm building a Hummelbird, and I was hoping to use it towards my private pilot's license, but I've heard that I can't use an experimental for flight training. I looked through my FARAIM '97 and I can't find anything to verify that. Has anything changed regarding this since then? Can someone point...

I've been ordering a bunch of round tubing from Aircraft Spruce but the only square tubing they advertise has sharp corners. I need some 1" square tubing with rounded corners. The specs. are not critical beyond that; I'll try to work with what's available. Any pointers? Thank you.

There seems to be some jealousy and bitter bigots trying to bad mouth this plane its ebay listing in addition to defaming me. This plane is priced to sell and built professionally and has hundreds of hour flown off of it safely. I refuse to have dialouge with any of these Keyboard Rangers...

Hello everyone, I'm back in the shop again with a new problem. That is, how to drill accurate holes on-center through steel tubing. I need to attach 2 short lengths of 1/2" EMT tubing parallel to the top tube of a bicycle frame, one on each side. The EMT tubes will extend about 20" forward of...

I expect, like me, you thought you knew what heading hold gyros were all about? If you haven't been around model helicopter enthusiasts lately, you have no idea! Try googling 'heading hold gyro'. It turns out, that radio control modelers stick a heading hold gyro on their model helicopter and...

Is there a quick way to calculate what the hinge moment (or turning moment for the flap shaft for a specified condition) is for a flap on a symetrical foil

Hi All I have a King KY195B TSO radio. It uses a Telex 66T , amplified dynamic Microphone. It works well, but I want to change the microphone to a boom mic. (This is in a sailplane) The question is whether an electret mic will work. Any suggestions?

Having to reject the last nicropress on the rudder, two strands were cut when the nircopress was cut off with a drmel tool. The question is whether we can reinstall a nicropress in the original position and then add one an 1/8" further?? or, Make splice two lengths of control cable with double...

I'd like to read MIL-SPEC TT-P-1757, which talks about zinc chromate. GOOGLING for it, I see offers to /sell/ the document. Shouldn't that spec be available on-line somewhere? Second, I see offers for "Mil-Spec TT-P-1757 kit". What would the 'kit' consist of? - Mike

Automotive alternators are sometimes installed on certified airplanes. Are automotive (or any other type) starters ever used on a certified engine. For instance, is there a Delco automotive equivalent to the starter on a C85? Thanks, Wallace

whilst taking a break from my main project (http://www.dlc.fi/~jmpaaso/experimental/), I stumbled upon the concept of Bell xp-77. Being all wooden, it appealed to me and now I would like to hear anything and everything concerning this aircraft. Are there any existing drawings ? anywhere, anyone?...

Has there been any development of small jet engines for light aircraft, like the engines used on the Eclipse 500? Small turbines would be great for high performance homebuilts if they were cheap enough. Anything down to the price level that could compete with high horsepower Lycoming's...

Recent quote for 16 of these bolts was about $20.00 each!! Anyone out there with a less expensive source?

I unexpectedly have the opportunity to fly to Airventure for a few days. A friend who has done this before has recommended that I fly to a field near OSH rather than right in to Wittman Regional. I will be flying around the north end of Lake Michigan. Do you have any recommendations for which...

This is for a hypothetical ultralight design, so just looking for suggestions here of where to look at... hopefully a 4-stroke, purchase price doesn't matter much, certification status doesn't matter either. Long time before overhaul matters A LOT... so, the longer the better. Is there anything out...

A few questions for any Europa builders out the 1) what is the monowheel retract mechanism? (electric, manual, ??) 2) how hard would it appear to modify the baggage compartment with a ski tube? Golf bags even? 3) I know there's no published TBO, but how is the maint experience on the Rotax...

I am unclear on two Sport Pilot issues: First, a new pilot may qualify for a Sport Pilot ticket even though he or she takes a medication that would preclude a 3rd class medical. However, an experienced pilot with a higher ticket may not operate as a Sport Pilot if he lost a medical last year for...

Homebuilt twin-engine composite amphibian had a "Spruce Goose moment" a week or two ago: http://www.youtube.com/watch?v=mHc5U7VPnmU (BTW, for those who are wondering: It's a Pacific Northwest clam, pronounced "Gooey Duck.") http://www.gweduc.com/