Re: Math

[jonathan coates <alfa@domain.elided>]

In message , "Bourke, Quentin" <BouQue@domain.elided> writes
>ummm
>
>if I know gear ratios can I calculate what engine speed I need to attain if
>I am changing to a lower gear?
>
>eg If I am travelling in fourth at 3,000 rpm what rpm would I need to
>maintain the same road speed in third
Simple answer is yes.
If you had ratios ot 2:1 and 3:1, the change in engine speed would be
2:3.
If you use the real numbers the answer, or more correctly where the
answer comes from is not so obvious so please excuse the simplification.
- -- 
jonathan coates

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