<?xml version="1.0"?>
<!--

  Packard V-1650-7 configured for 150 octane fuel for P51B/C/D use.  British 
  Mustang IIIs would have been setup for a WEP of 81 inHg (25 lb boost).

-->


<piston_engine name="V1650-7">
    <injected>1</injected>
    <minmp unit="INHG"> 5.0 </minmp>
    <maxmp unit="INHG"> 29.9 </maxmp>
    <displacement unit="IN3"> 1650</displacement>
    
    <bore unit="IN"> 5.4  </bore> 
    <stroke unit="IN"> 6.0 </stroke>
    <cylinders> 12 </cylinders>
    <cylinder-head-mass unit="LBS"> 40 </cylinder-head-mass>
    <compression-ratio> 6 </compression-ratio>
    <sparkfaildrop> 0.1 </sparkfaildrop>
    
    <!--
       bsfc and VE are overriden at runtime by the propulsion module 
    -->
    <bsfc unit="LBS/HP*HR"> 0.591 </bsfc>
    <volumetric-efficiency> 0.8295 </volumetric-efficiency>
    
    <air-intake-impedance-factor> 0.1 </air-intake-impedance-factor>
    <ram-air-factor> 0.9 </ram-air-factor>
    
    <maxhp> 1700 </maxhp>
    <cycles> 4 </cycles>
    <idlerpm> 500.0 </idlerpm>
    <maxrpm> 3000.0 </maxrpm>
    
    <maxthrottle> 1.0 </maxthrottle>
    <minthrottle> 0.003 </minthrottle>
    
    <boostmanual> 1 </boostmanual>
    <boostoverride> 0 </boostoverride>
    <numboostspeeds> 2 </numboostspeeds> 
    <!--<takeoffboost unit="INHG"> 45 </takeoffboost>--> <!-- WEP 75inHg -->
    
    <ratedboost1 unit="INHG"> 51 </ratedboost1>   <!-- 67 inHG - 29.97 -->
    <ratedpower1> 1940 </ratedpower1>
    <ratedrpm1> 3000 </ratedrpm1>
    <ratedaltitude1> 5000 </ratedaltitude1>
        
    <ratedboost2 unit="INHG"> 51 </ratedboost2>
    <ratedpower2> 1800 </ratedpower2>  
    <ratedrpm2> 3000 </ratedrpm2>
    <ratedaltitude2> 16000 </ratedaltitude2>
    
</piston_engine>