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Aero Engine Data Sheets

Mechanical Data tables

Italian Aero Engines: Page 129 of 140

N/A = Not Applicable --- NA = Info Not available

MakerFiat A24RFiat A30RAFiat A54Fiat A70Fiat A74RCFiat A80RCIsotta Fraschini 750R
ArrangementV 60V 60RadialRadialRadialRadialW Layout
CoolingLiquidLiquidAirAirAirAirLiquid
No of Cyls121277141818
Bore/Stroke5.51" x 6.89"5.31" x 5.51"4.13" X 4.72"4.53" x 4.53"4.53" x 4.53"5.51" x 6.50"5.12" x 6.69"
Displacement2002 cu ins1713.6 cu ins493.5 cu ins510.0 cu ins1906.3 cu ins2788.9 cu ins4073.1 cu ins
Comp Ratio5.70:18.0:15.50:15.75:16.50:16.50:15.70:1
bmep Cruise115778412014513570
Blower ratioN/AN/AN/A10.228.789.37N/A
Cyl MaterialSteelSteelSteelSteelSteelSteelSteel
Valves per cyl2 Inl 2 Exh2 Inl 2 Exh1 Inl 1 Exh1 Inl 1 Exh1 Inl 1 Exh1 Inl 1 Exh2 Inl 2 Exh
Valve Arr.OHCOHCOHVOHVOHVOHVOHV
HP max - not Take-Off7005501402058401000920
@ RPM2000275021002200240021001900
@ AltitudeSea Level9842 ftSea LevelSea Level12467 ft13451 ftSea Level
HP Take-OffNot Given600Not GivenNot GivenNot Given1000Not Given
@ RPMNA2600NANANA1995 NA
HP Cruise525415100155Not GivenNot Given550
@ RPM1810250019102000Not GivenNot Given1530
Fuel Octane82847482878787
Prop DriveGearedGearedDirectDirectGearedGearedGeared
Dry Weight1212.5 lbs1058.2 lbs330.7 lbs368.2 lbs1245.6 lbs1598.4 lbs1543.2 lbs
lb/Cruise HP2.312.553.312.371.481.602.81
Carb(s)2 X Own3 X Own1 X Stromberg1 X Stromberg1 X Stromberg1 X Own1 X Own
IgnitionMarelli Mag(2)Marelli Mag(2)Marelli Mag(2)Marelli Mag(2)Marelli Mag(2)Marelli Mag(2)Marelli Mag(2)
Starting MethodOwn, Comp AirOwn, Comp AirOwn, Comp AirMarelli, Comp AirOwn, Comp AirOwn, Comp Air Own, Comp Air
Length69.69"68.94"21.30"20.71"41.14"45.47"85.04"
Height/O.D.41.93"36.81"36.81"36.61"47.05"52.56"41.92"
Width28.93"25.71"25.71"25.71"25.71"25.7140.55"
Bed centres25.39"21.81"21.81"21.81"21.81"21.81"Not Given
Mount DiaNANANANANANANA

Let me know if any of the above does not read true, or if you have information that does not agree. Wherever possible, I will update these pages on a regular basis as data comes in.


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