Posted by dr sportster on May 31, 2012 at 07:09:43 from (69.125.161.237):
In Reply to: Re: this is fast posted by evilboweviel on May 31, 2012 at 06:25:46:
I'm not "allowing for" anything. Itialian styled cars do take into effect areodynamics. As does my Ducati which is probably about 75 hp. The reason a Hayabusa does 200mph is the fairing. Reason modern jap bikes go faster than the same horsepower older bikes is the fairing. I'm not saying old is correct. Perhaps he was reading on the high bounce of the speedo needle. lol. Im really not disagreeing with anyone and The calculations I could do are only based on the 1/4 mile . You are correct in that I have not allowed for wind resistance . In the 1950's engineers calculated that a car could not possibly exceed 150 in the quarter mile. Look at the speeds today. I have a theory called " math vs reality" myself. Not everthing can be figured on paper . Maybe Old was going down an incline and gravity was in his favor. Maybe the memory has added some MPH. Not saying he is correct . But the 155 mph bicycle is a fact.In that case the train must have almost pulled the bike from what air does[suction effect]. The front sprocket on the bike was huge[gearing] .But,yes ,my little power/speed slide rule does not acount for wind drag. Big diiference in styling /body shape of a Bonneville car vs top fuel. Both are acheiving amazing speeds . A dragster that turns 9000 rpm has only rotated about 750 turns in a five second quarter mile run. {which has nothing to do with anything ] just an interesting thing I thought about.
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