<?xml version="1.0"?>

<!--
		References:	see Docs/references.md, Engine Rotax 914
-->

<piston_engine name="Rotax-914-F4">
	<!--	mp without boost (from aeromatic) -->
	<minmp unit="INHG">		10.0	</minmp>
	<maxmp unit="INHG">	 	28.5	</maxmp>
	<displacement unit="IN3">	73.9	</displacement>
	<maxhp>				115	</maxhp>
	<cycles>			4.0	</cycles>
	<idlerpm>			1400.0	</idlerpm>
	<maxrpm>			5800.0	</maxrpm>
	<sparkfaildrop>			0.1	</sparkfaildrop>
	<volumetric-efficiency>		0.85	</volumetric-efficiency>
	<man-press-lag>			0.1	</man-press-lag>
	<static-friction  unit="HP">	0.566572</static-friction>
	<starter-torque>		90.6516	</starter-torque>
	<starter-rpm>			1400	</starter-rpm>
	<stroke unit="IN">		2.4	</stroke>
	<bore unit="IN">		3.13	</bore>
	<cylinders>			4	</cylinders>
	<compression-ratio>		9.0	</compression-ratio>
	
	<numboostspeeds> 1 </numboostspeeds>
  
	<!-- ratings based on [3] page 5 - 5 -->
	<ratedpower1>115</ratedpower1>	<!-- 85 kW -->
	<!--  <ratedboost1>30</ratedboost1>-->
	<ratedaltitude1>0</ratedaltitude1>
	<ratedrpm1>5800</ratedrpm1>	<!-- max takeoff -->
	
	<ratedpower2>107.28</ratedpower2> <!-- 80 kW -->
	<!--  <ratedboost1>30</ratedboost1>-->
	<ratedaltitude2>8000</ratedaltitude2>
	<ratedrpm2>5800</ratedrpm2>	<!-- max takeoff -->
  
	<ratedpower3>88.51</ratedpower3> <!-- 66 kW -->
	<!--  <ratedboost1>30</ratedboost1>-->
	<ratedaltitude3>16000</ratedaltitude3>
	<ratedrpm3>5500</ratedrpm3>	<!-- max continuous -->
</piston_engine>
