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I guess this is automotive, tho' in most states they are considered motorcycles... anyone ever mess with 3 wheel vehicles? I might build one. They say 2 front wheels and one rear is the most stable. I have plans for a Doran, which uses a Subaru drive train (fwd) with a scratchbuilt frame. Other schemes are smaller/lighter, like an old VW front end, w/ a 20 hp Briggs driving the rear wheel. I just want to putt around town- 50 mph tops. If I built the Doran, I wonder if I could adapt the Subaru tranny to one of my beloved Ford 4's? A warmed over 2.3 would scream in a 1200 lb. vehicle! I have no interested in a VW trike- I test drove one, and if you gave it any gas in a corner, it would just go straight!
In the U.K. and I believe Europe, it use to be any vehicle under 50 c.c.s did not require a driver's license and three wheel vehicles were very popular. You might look at those overseas vehicles for design clues.
Theologian- was the Reliant real tippy? They look it to me. Although most driving in our area is virtually straight-line, accident avoidance is even more important than brakes, IMHO.
I only have experience with the trikes made in the seventies-early 80's ,with one wheel up front- vw drive train in the back. My best friends family used to build them all the time. They haul and are a blast. Great for people that want a motorcycle feel with less stability issues. Wheelies are great.....There is a website which features 3 wheelers from all over the world- it has some interesting concepts including the 2 wheels up front. You also my do a search of th T-Rex- it is probably the best trike going today.
Theologian- was the Reliant real tippy? They look it to me. Although most driving in our area is virtually straight-line, accident avoidance is even more important than brakes, IMHO.
It was the strangest sensation driving that thing. It would dive in a corner, and too much corner would lift up the opposite rear tire.. They would flip easier in reverse than forward gears - do a fast donut backwards and you would fall over. Not much of a problem, the thing only weighed about 500 pounds, so tipping it back on it's 3 wheels was not too difficult. The best thing about it was the microscopic engine - a 4 cylinder austin engine, displacing all of 998 cc. That was married to a 4 speed manual transmission and gave a top speed of about 80. The thing shook so much at that speed that the interior engine hatch would fly open, and scare the living daylights out of you. It leaked pretty bad in rain too. Nothing fitted, the body warped every hot day, or when you took a corner too fast. The only thing going for it was the total lack of metal in it - it would never rust, unlike most British vehicles at that time - even the holy mini would fall apart in 5 years if you were not lucky.
The only time it really scared me was going up a very steep hill in North Wales - It felt like it was going to tip over backwards - I have never felt that in a four wheeler, so maybe it was.