In an earlier post I read somewhere that the pulse jet is a device that converts fuel into noise. Someone else had suggested firing 2 engines 180 degrees out of phase with each other to cancel the sound. If the 2 engines were stacked one over the other, then you might actually be able to cancel a...

I've had a kind of unnerving vibration in my RV-4 since first flight. I looked into harmonic dampers, but they're pretty expensive, so I decided to give dynamic balancing a shot first. $200 and 1 hour later, my engine runs *much* smoother. It measured 0.3+ ips on the first run, so the guy weighed...

Can anyone supply me with the type of airfoil used on the Glasair 1 TD and its zero-lift alpha. 'Preciate it!

To All: As promised, here on this Newsgroup about six weeks ago, I've posted a snapshot of a rib gusset made from fiberglas drywall tape and polyurethane glue. The photo is in the Files archive of the Fly5kfiles Group on Yahoo, in the Practice Wing folder. Other rib gusset experiments of...

Greetings, I recently added an ICOM A200 to my Pitts S-1C. The previous owner had an ACK ELT installed just behind the seat with the antenna on the belly skin. I originally thought this wasn't a good place for the antenna as a relatively high speed dirt encounter would most likely take out the...

Hi Group! I have been away so long. I am not someone any out there are familiar with. A lurker at best. I am now ready to start building my Renegade Formula V again. But, the wings are wood... Does any one have any study plans available for the Sonerai I? I would like to see what can be done for...

In the latest AOPA magazine there is an article on one of the latest Diamond aircraft which is equipped with dual Garmin G1000's. I was really impressed in many ways by the units. Compared to a normal AI, the things are HUGE, they're something like 10.5 inches diagonally. It's like looking at...

I know this subject has come up often in the past and I have checked back on most the old postings for a cure but still don't seem to be able to solve the problem. The aircraft is a Koala (Fisher Products, all wood and fabric). Radio fitted is a Narco Com 810 with Telex headsets. (I know it's not...

Hi all. I have recently completed my airplane and have begun taxi testing. For an engine I chose the Rotax 912. I purchased the engine from a Trade-A-Plane ad where it was advertised as being "new in the box". When I inspected the engine prior to buying it did appear to be brand new and was still...

PRESS RELEASE RELEASE DATE: 02 October 03

Photos of damage to J3 Cub propeller after replacement of old engine mount with new factory engine mount. Cowl clips rub against back of propeller, wearing a groove the size of a nickel and a few centimeters deep in the metal prop. Worth checking your installation for similar problem. Note the...

Composite SeaHawk Amphib located Dallas. 280 hrs TT airframe - + 800 hrs on Lyc 0-320 WarpDrive 4 blade prop. 115mph @65% and 1000+ miles range. 12 seconds take off time land/water(not at gross) Full gyros, 720 nav/com, mode C, no charge for the loran. Have pics - asking 28K - will trade or partial...

Ok, it would not be practical for a family flyer - but is anyone currently experimenting with a rubber band powered aircraft? Any websites regarding how much power is available, and for what duration? I found some information on rubber band powered aircraft in the 1800's, but few details. Seems...

I've heard of them doing up to 150 octane (I don't know how that's chemically possible, but that's what they say) It's not based on the hydrocarbon octane anymore. Most automotive gas pumps have the formula decal. Dan, U. S. Air Force, retired

Hi, I am wondering if V0-435 cylinders can be used as replacements for the original 0-290 jugs. This is for non-certified use. I have also heard of an O-320 cylinder modification. If anyone could give me some advice, I would greatly appreciate it. Thanks!

Does the marker beacon antenna HAVE to be the length stated in your manual or can it be scaled down? Reason I ask is I don't have the length available in my fuselage without going over large metallic objects. (Like a oxygen tank or rear tiedown mount.) Thanks for your support. -- Bart D....

Please see http://members.cox.net/mhorowit/ for details. - Mike

I received a package that includes the original Finnish report for the FAR-23-like load testing of a Fly Baby in 1977. At that time, the Finnish National Board of Aviation required formal testing of homebuilts just like production aircraft. Fortunately, the package includes a translation into...

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

http://www.youtube.com/watch?v=g-TE7MOuo7c Monk