<VV> rev counter

[Joe West]

I'm pretty certain that the terminal velocity of a corvair when dropped from
a B52 (as was the Bell X-1) will be significantly less than 390 MPH, but I
suspect we'll have to develop an instrumented test to determine the facts.

I suggest that we also measure cooling fan efficiency during the fall, just
in case someday someone wants to know how well a Corvair fan cools under
terminal velocity.

By the way... the person who is having tachometer problems never said that
he had a stock engine.  It is possible that he has modified his Corvair to
run off of a battery powered Sears Craftsman router... in which case all of
you who poked fun will have to eat your words.

Joe


On 9/1/05 2:41 PM, "Chuck Kubin" <dreamwoodck at yahoo.com> wrote:

> 
> ------30,000 rpm is a bit high and since it corresponds to something like 600
> mph 
> you may be having some shock wave effects which, coupled with sonic boom, is
> causing the needle to bounce a bit.
> RonH-----
> 
> ----- Original Message -----
> -----> In my 140 the rev counter moves steadily to about 30,000 at 65-70 mph
> then
>> it starts wavering between 30,000 and 35,000 till I get to 75-80 mph then
>> it again becomes steady again. What could be the problem?------
> 
> I'd definitely agree with Ron. The aerodynamics of both EM and LM cars are
> usually good up to about 390 mph, but really go to hell at anything over 500.
> The band in between is in transition and is definitely turbulence teritory.
> Chuck Yeager solved the problem in the Bell X-1 but had considerably less luck
> in his Rampside.
> 
> The real value of these speeds is most cops can't ramp up to catch you if you
> blow thorugh a speed trap.
> 
> Chuck Kubin
> 
> 
> 
> 
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