Jeff, You may wish to consider Parker Parflex nylon hose. It is available in several wall thickness at 1/4 inch OD. The hose is UV stabilized so there is little worry about it becoming brittle after a few years of exposure to light (you could always paint over it). Minimum purchase lengths for...

From the Sport Pilot final rule: "The FAA has reconsidered the circumstances in which a current and valid U.S. driver's license should be allowed in lieu of a valid airman medical certificate and has made substantive revisions to the medical provisions in the final rule. These revisions are based...

What are the 400mA current sink superflags used for? I've got them on my Apollo equipment, but they only show hookups to older equipment.

Hans Conser wrote: Page 18 Feb issue of Flying: "FAA Certifies Auto Engine Conversion In November the FAA granted type certification to the Thielert Aircraft Engines (TAE) TAE 125-01 four cylinder aviation diesel engine. The

Folks, Thought this was too important to get lost in the past. And I conclude more than ever that Jim Campbell does bad things, is bad for aviation, and has no business in the aviation community. The most salient points are, in my opinion, the references to glowing reviews of unsafe aircraft by...

NAFI sent this alert to its members. Note the EAA concern about charity flights with vintage aircraft such as Aluminum Overcast: Instructional News FAA Proposes Flight-seeing Rule The FAA published on Oct. 22 a notice of proposed rulemaking (NPRM) that it claims will improve national air tour...

Apart from the Quickie group of planes why aren't there more fast biplanes? The quickies aren't exactly biplanes I know. It would appear that 2 short wings can be built lighter than one long one since the moment arm is half as long for the shorter wing pair. No struts used because of drag, just...

Hello everyone. I am attempting to find a suitable epoxy resin in SE Asia (Thailand specifically) for building a composite airplane. It doesn't appear that any recognized brands are sold here, however there are factories that produce epoxy of all kinds. However, in order to get the correct epoxy...

Well as far as i know the concept of home homebuilt aircraft is very vague because it would work only the aircraft controls are very easy to understand or a person building it a pilot himself, else, either the aircraft would crash or it wouldn't take-off. The second thing is that if they are...

"...but I don't have a lathe." Sound familiar? The truth is, you probably have any number of things around your shop that can serve as a lathe. In a lathe, the work rotates against the cutting tool. ( In a milling machine, it's the cutting tool that rotates against the work.) The main purpose...

Brad Hill's Tetra-15 made its first flight on 27 January 2012. The Tetra-15 is the first sailplane built from the HP-24 project development and tooling. Brad got lots of photos and even some video of the event. There are some pictures (soon to be more) on the HP-24 website and on the HP-24...

******************************************* "...the great little VW conversion with a 2.0:1 reduction producing 103 HP." --------------------------------------------------------- To All: In the context of an engine converted for flight the figures above are wildly fallacious. At best,...

(Necessary Aviation Content: Weight) (Necessary Aviation Content - Part Deux: Piper entrance and egress) Anyone looking to shed 'a few' pounds this year? If you've succeeded it in the past, want to share your story? Montblack If food is my cocaine, I'm the Darryl Strawberry of weight loss...

Ernest Christley misfired the following: I'm about halfway through this book. It is quite an eye opener. The author's explanations seem so insightful, cogent and complete. However, there's this one blemish. Printed in 1944, the author makes the claim that the rudder will disappear in just a...

Most of the fabric covered aiplanes I've seen didn't seem that hard. That is, you could walk up to them and push the fabric in with your hand. The way I understand the fabric process, it is basically a composite structure. You have a nylon cloth with a paint "epoxy". Could a much stronger and...

Not wanting to post at the end of a mile-long thread, I'm starting a new one (so sue me.) Here are a few clarifications regarding the Wrights, wing warping, and ancient props, from a guy currently nursing a deep thigh bruise inflicted by the hip cradle of a Wright 1902 glider. Props first: Nope...

I noticed in another post that the Continental O-200 is back in new manufacture again. Are there any links to the price of the new engine and the specification differences between the old O-200 that I fly with and would like to replace and the new O-200 LSA engine? I spent an hour probing the TCM...

Howdy, I was channel surfing the other day, and caught a glimpse of how they make rotor blades for the Hind MI-8 helicopter on RT. (Russian News) Very Interesting. They use small sections of metal (aluminum?) honeycomb cut to the shape of the airfoil, align it them with the spar on the leading and...

If you're building in aluminum from scratch, one of the most intractable problems is the need for an 8 ft bending brake for most designs. A good one, even used, is about $1000, and at least half that many pounds, although there are alternatives that weigh...

mignet's flea had an aerodynamic problem due to an unpredicted slot effect. this is from a british museum web site.... "Following a series of fatal accidents involving this type the French authorities banned its use in 1936 and wind tunnel tests revealed an aerodynamic flaw that could result in...