<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
(QUARTERLY SEC REPORT FINANCIAL SUMMARY)
</LEGEND>
<CIK> 0000914539
<NAME> ROTARY POWER INTERNATIONAL, INC.
<MULTIPLIER> 1
<CURRENCY> $US
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
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<SECURITIES> 0
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0
500
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<NET-INCOME> (1,487,131)
<EPS-BASIC> (.19)
<EPS-DILUTED> (.18)
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