I am involved with the building of a velocity, and questions are flying around about propeller choice. For in-flight adjustable, we are limited at this time to an electric control, such as MT or IVO. Cost is pushing our options in this area towards the IVO. I have heard of some vibration/resonance...

To All: As promised, I've began posting drawings of primary glider(s). You will find them in PRIMARY_GLIDERS Group, in the FILES archive, in the Folder 'The Northrup Primary Glider.' So far I've only posted a few. The others will be posted as time -- and my medical condition -- permits. The...

I'm working on a Hummel Aviation Ultracruiser Plus. The way the engine mounts is quite different from the mounts on most VW powered homebuilts. The Conventional Wisdom bolts the thing to the firewall using the clucth end bellhousing, often with an accessory case in between. The Ultracruiser Plus...

I'd posted this in the "liar and fraud" thread but someone suggested nobody would see it as that thread had kinda petered out. It's a good summary of the reality of Bush's Guard record: "Juan Jimenez" wrote in message ... richard...

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...

.....how come there aren't any? I always figured that would be a neat build with 2 300+ hp engines, full aero, etc.

Is the A/W-95 Helicopter by A-B Helicopters a good design for what it is ??? I'm thinking of building it but appreciate any advise . Thanks ED

The two main methods for homebuilt construction would be casting vs. machining or some combination of both (probably the best option). Forging probably isn't appropriate for home construction (either the piston or connecting rod). One method I have thought of is to produce a wax model of the...

Last revised on October 6th 2002. Updated information on owner-maintenence. This document attempts to answer common questions asked by newcomers to the rec.aviation.homebuilt newsgroup, or those curious individuals unfamiliar with the domain of homebuilt aircraft. It assumes that the reader...

You blithering idiots! You re-elected that imbecile George Bush as your President. He’s a complete moron and so are most of you! - Which still leaves us well above you! Don’t you care what the rest of the world thinks of you? Don’t you care what

Currently own and fly a Vans RV4 , I'm over 70 years old. I have always flown tail dragger's (40 years) Bi and mono, always wheel them on and off. If you don't fly a tail dragger your not ready trying.

Hey guys! I just posted my engine for sale on Ebay item no. 1500649 46209 ,and I thought some of u would like to know. Ser. no.L 2072-39 It come original off a Piper appachi.Later it was put onto an airboat. I do have a log book but I think its not completely up to date. Lycoming informed me it has...

Have they tried dimples on radio controlled aircraft? The size and speed could designed around the magic Reynolds number = 100,000 where the coefficient of drag drops precipitously. Dimpling could vastly extent the range of large and slow as well as small and fast radio controlled aircraft. A...

Is there any curent litterature on the redisign material by Martin Hollman? How would I get that now?? Ive found a complete AA 2+2 and would like to check it for these changes! Thanks!

On 06/30/2020 03:39 AM, Remi Dargis wrote: On Tuesday, June 30, 2020 at 12:01:55 AM UTC-4, Corvid wrote: On 06/29/2020 03:09 PM, wrote: Hi everyone, i am new to ultralights (i was only flying skyhawks and warriors until now). i now own Fisher ultralight with Rotax 277. i never...

Ok, one more round of it: does anyone have a set of Airbike plans for sale, or know of the German website that was/is producing them (newairbike.com)? Thanks

Has anyone been able to find the weight on the VW V10 diesel engine? This engine produces 550 lb/ft of torque at 2000 rpm and 310 hp at 3750 rpm. Sounds like a great candidate for aircraft to me. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system...

How does a person determine what the proper height of an engine should be when building an airplane? If a particular engine design mandates the prop is 4 inches, say, lower than where it would be with the engine originally installed, what effect will it have on handling, and what changes in...

I had posted a link to a vid of a 701 weaving through the trees over on .piloting. At some point down the line I expressed interest in a VW powered 701. One guy said he figured a VW would melt down in an aircraft cowling when producing no more that 50HP. He provided a link to Bob Hoover's blog,...

97.101 says: §97.101 General standards. (a) In all respects not specifically covered by FCC Rules each amateur station must be operated in accordance with good engineering and good amateur practice. (b) Each station licensee and each control operator must cooperate in selecting transmitting...