Hey Guys- Has anyone ever attempted to install a Hilsch Tube (Vortex Tube) in an aircraft for environmental controls? The setup I see would be very light, a 3 foot long PVC vortex tube (no more than 5 lbs) with a small exhaust turbocharger force-feeding it. Yes the Hilsch tube is not a...

http://www.eaach1.org/Design/comm6v1-1R4.pdf Subject at hand: Landing gear design. Article in above link pretty much puts into words my understanding of why tail draggers do what they do. I've been thinking about an original design for cheap one man flying (OK, lots of borrowed stuff put...

3/4 ton extended cab pickup towing a 24 foot travel trailer. Fuel mileage is effected much more by wind than weight. I want to build a camper shell that will be cab high at the front and direct the airflow smoothly over the trailer. There is about 4 feet between the front of the trailer and the...

I want to add an aux tank & transfer fuel to main tank with a pump during flight. I think it makes fuel management easier if the pump transfer close to the engine's burn rate, say 14 gph. I also want the pump to pick up fuel from the top of the aux tank via a tube to the bottom of the tank so no...

Australia's oldest homebuilt aircraft was built in 1928 and flown until 1933. It was subsequently stored in the museum in the town of York in Western Australia for 60 years. Recently ownership passed by inheritance to the grandson of the original builder. He being a pilot decided to rescue the old...

Just released information on their new plane. http://cessna.com/news/article.chtml?ID=QPMCcHycS82nH3LYmVotPNMnptBUrfPyQmdJUh6JfkkJNoEMTK Larry Fitzgerald

Doe anybody know what the thread pitch for the oil screen is on a Continental A-65? I have slightly boogered threads on the engine threads and I want to run a set of dies through (I bought a tool with the dies from McMaster Carr). It looks like 16 TPI is the closest. Does that sound...

I have a Zenith CH-300 with a Lyc 0-320. It has an engine mounted fuel pump, and an electric aux pump. I also have a fuel pressure gauge, and a low fuel pressure warning light. Today, for the first time, when I did my pre-flight run-up, the low fuel pressure light came on. When I looked at the fuel...

Hello can someone please clear something up for me about the thrust line I am interested in knowing what changes will happen if? using a pusher type configuration for reference I notice that many longez type aircraft vary a bit where the engine is mounted in reference to the thrust line. few...

Anyone know the weight of this Toyota (European) aluminum diesel engine? I've looked, can't fint it. 1.4 D-4D (89 bhp) All-aluminum? Anyone using one of these in an airplane yet? ANY successful auto-diesel conversions in the air?

I have a friend in Kingman,AZ who needs some help with landing his RV-8. Is there anyone near Kingman who could help? The person would need access to a dual control RV-8 as the time is not flown off of his airplane yet. Thanks, Skyking

I have a question some of you Epoxy builders might know. Is Cotton Flox okay to use as a structural filler in vinyl ester resin?. And if so, why is it not called for to be used in it? Mostly, micro balloons, cabosil, and milled fibers are used in vinyl ester, but in epoxy they use cotton flox. I...

I am thinking about getting a booth at OSH to show off our Digital Readouts (see www.star-techno.com) . I have heard both good and bad things about being a vendor there. Bad: booth costs $2500 for 10x10, Good: tons and tons of people. Does anyone know how many attendees are actually builders, as...

The most recent Sport Aviation has an article on make up hoses. The author states that 'you must use 37 degree fittings' and as is typical, gives no reason why. Is there a reason for this that involves the laws of nature, vs the "laws of the FAA"? -- http://www.ernest.isa-geek.org/ "Ignorance is...

The news reported yesterday or the day before that an experimental ultralight plane (they obviously don't know that there is a difference) crashed in north GA. There were no details beyond this. Anyone have more to add? Harry

Ok.. question for those out there with some hands on experience with the IVO Magnum series electric inflight-adjustable props. What has been your experience with this product.. Any pro's or cons based on your experience... Has the product met your expectations... Where I am coming from: working...

I want to build a teststand where I can test an alternator. I plan on fabricating a test stand for the alternator. I have a variable voltage source capable of driving enough current to 'drive' the field. I have a dummy load to sink the output current. What I need is a variable speed electric...

So, would I have to be insane to buy a complete BD5-B kit? I still remember the outrageous performance claims when the ads first appeared. What do people use for engines? (I think I can lay my hands on a Czech MiG APU and I have a buddy who is an expert on the Formula Mazda engines). -- Charlie...

For learning about flying and aircraft, there's no place like Usenet -- specifically the "Rec.Aviation.Piloting", "Rec.Homebuilt", and "Rec.Aviation.Owning" newsgroups. These forums attract hundreds (thousands?) of aviation enthusiasts each day, and represent a depth and breadth of knowledge that...

On Wed, 21 Apr 2004 14:43:01 +0000, Jay Honeck wrote: Yup, was not there.. They did have posters and flyers, but thats all.. :( Strangely, I didn't see the RV-10 at the Van's tent, either. Very odd. The word on the RV-List is that they had an aircraft snag enroute. Some