I am building full size LMA Super Cub replica. (Wood). I have the trim tab buily but can not decide best way to actuate it. Can anyone point me to a site with pictures? Should I go cable, servo, etc? Thanks Robert Loer

I am removing the vac T&B and putting in an electric and thinking of removing the regulator and then apply full venturi vacumn to the horizon. Is it possible to over rev a gyro with an outside venturi? I am doing this because even after a 15 min runup I am several miles off the runway before the...

Just wondering if anyone has a good set of used brake masters gathering dust that they'd like to sell reasonably. Needed for 2 seater side-by side using 6" Cessna wheels and brakes. Prefer 4 cyls for full dual control, but either a pair of integral reservoir or external reservoir cyls would be a...

I have a 503 DCDI mounted inverted in a J3 Kitten. I am using an Ivo in flight adjustable prop and the engine plain just runs great. The problem is that I can't turn the engine off if it is running in the "smooth" range, the mag 1 mag 2 switches will only cut it off if it is at a lower rpm and...

Why do we homebuilders use 4130 tube? My old Aeronca does just fine being made of mild steel. A bit of napkin calcs says that going up just one tube diameter for the size tube we normally use, the area, and the strength/weight goes up between 15% and 20%. This pretty much offsets the difference...

I'm changing the battery in my SNS-8 Hiperlight and was wondering what I should use. The engine is a Rotax 447. Would a lead acid battery be OK? -- Thank You

Is anybody on the list using the two cylinder (4-stroke) HKS 700E engine? It's about the perfect size for an upcoming project (Georgias Special) and I'm wondering about its reliability, toughness, etc. compared to say a 1/2 or full VW. The original Georgias used 28 HP, so a 1/2 VW would work and...

What size air compressor do I need for building my RV-10? I don't know about rivets and air tools. My experience is mostly carpentry. I may be interested in spraying some primer in interior areas but that's about as far as I'd go with painting.

Does anyone know where I can find dimentioned drawings of Dzus rails? Dan, U.S. Air Force, retired

Hi, im building my first pulsjet. I have calculated dimentions for 78 lbs ( 35 kg metric ) of thrust. Here is the dimentions: Exhaust pipe diameter : 5 Inch Exhaust pipe lenght : 34.11 Combustion chamber lenght :11.34

Still interested in converting from Midget Mustang taildragger to tricycle geared even though most previous comments were against it. My belief is that weight and balance considerations along with location of wheels is manageable. Nosegear I'm currently considering a Diehl rod-type connected...

Here's a little something I wrote today. I hope some of you enjoy it. Return of the Dreaded Builder's Bug He knew that he had it. He just knew it. He was sure he had caught it somehow. And sure enough it started happening. Something bad had gotten into his brain. And then as he went about...

I've come across a supply of wire at a reasonable price that I think I want to use to wire my plane. It is NOT aircraft wire, but I have all the spec on it. It is MTW (machine tool wire) AMW 1015/1230, FT1 and VM1 rated. The 18 guage is 16 strand. Insulation is PVC (not crosslinked) rated for -55...

i am considering building a zenith-air stol 701 kit plane which is usually made from riveted aluminum, but instead i would like to build it primarily out of carbon fiber composites. how would such a building strategy affect the airworthiness certification procedure? can someone please describe or...

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?...

Can anyone advise me how I should clean up a 5/16th reamed aluminum hole to eliminate stress fractures. Is the process called "burnishing" and how is it done? Will fine grade sandpaper work. This is an important wing fitting. Thanks. Larry

The front seal of my Ross Aero Reduction unit needs replacing but I can't remove the prop hub pin. The darn thing won't budge...even under a 4000 lb.hydraulic press. Has anyone had experience removing the prop hub? Warning.... After removing the reduction from my engine I found two set screws...

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 trying to come up with a 60" box/pan brake for which I am willing to trade a pair of aluminum fuel tanks built to fit your project. I am looking for something old but serviceable or easily repairable. -- Bruce A. Frank, Editor "Ford 3.8/4.2L Engine and V-6...

Here's a savory tidbit for any of those who were around during the dark days of the Zoom Wars, a galactic battle of truth versus evil that is now long faded into the foggy memories of the last century. Does the subject of this news article sound familiar to any of you RAH old-timers ??? Plastic...