Marc:
Laughed till I choked!
Dan
75 Argosy 26
> From: "Weimers" <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> Date: Thu, 31 May 2001 08:55:40 -0400
> To: Multiple recipients of VACList <[EMAIL PROTECTED]>
> Subject: [VAC] Re: Grade %
>
>
> ----- Original Message -----
>> The mathematical relationship is that tangent( angle) = rise/run.
>> Surveyors measure rise with a level and rod, and run with a tape. So %
>> grade is simply 100 * rise / run. Far simpler to compute than angle. And
>> at low slopes, under 5 or 6%, slope and angle are essentially the same
>> for the angle in radians. There 360 degrees in a circle and 2 pi (=
>> 6.28) radians. At 1 degree slope, slope (not %) is 0.017455. The angle
>> in radians is 0.017453. There are (360/ 2 pi) 57.29578 degrees per
>> radian. End of math lesson.
>>
>
>
> I've come up with a simpler version:
>
> 1% grade: Overdrive transmission should be shifted out of overdrive
>
> 3% Suburban no longer able to maintain 95 MPH while towing 31'
> Airstream uphill
>
> 5% Suburban begins to slow down to speed limit
>
> 10% Suburban doing some serious work - Big Mac starts to slide off
> seat
>
> 12% Transmission reaching maximum operating temperature
>
> 15% Suburban has to downshift into second gear
> ...unless it's a 454, in which case it can't go
> 95 MPH anymore.
>
> 16% Calculator (or slide rule) used to figure out degrees and radians
> of slopes slides off seat.
>
> 17% Wife says "Why can't you ever stop and ask directions ???"
>
> 18% Transmission bursts into flames
>
> 20% Dodge Cummins pick-up starts to slow down
>
> 25% Chunks of pavement start tearing out and flying backward under
> Suburban wheels.
>
> 30% You've just made Wally Byam proud!
>
> Does this help ??
>
>
>
>
>
>
>
>
> To unsubscribe or to change to a daily Digest, please go to
> http://www.airstream.net/vaclist/listoffice.html
>
> If replying back to this message, please delete all the unnecessary original
> text from your reply.
>
>
>
>
To unsubscribe or to change to a daily Digest, please go to
http://www.airstream.net/vaclist/listoffice.html
If replying back to this message, please delete all the unnecessary original
text from your reply.
