Le Rhone 9j
air-cooled 9 -cylinder two-valve rotary engine 110 [hp](80.9 KW)
introduction : may 1915 country : france
applications : Nieuport 17
normal rating : 110 [hp](80.9 KW) at 1100 [rpm] at 0 [m] above sea level
maximum rating : 135 [hp] at 1350 [rpm] at sea level
no reduction, direct drive
weight engine(s) dry : 147.0 [kg] = 1.82 [kg/KW]
bore : 112.0 [mm] stroke : 170.0 [mm]
compression ratio: 5.00 :1
high compression engine cannot run with full power/throttle at sea-level (only for short
period)
stroke volume (Vs) : 15.074 [litre]
compression volume : 3.768 [litre]
total volume : 18.842 [litre]
power / stroke volume (litervermogen Nl): 5.4 [kW/litre]
torque : 702 [Nm]
engine weight/volume : 9.8 : [kg/litre]
average piston speed (Cm): 6.2 [m/s]
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intake pressure at 0 [m] hoogte Pi : 0.95 [kg/cm2]
mean engine pressure (M.E.P.) at 0 [m] hoogte Pm : 5.58 [kg/cm2]
compression pressure at 0 [m] hoogte Pc: 7.49 [kg/cm2]
estimated combustion pressure at 0 [m] Pe : 29.97 [kg/cm^2 ]
exhaust pressure at 0 [m] Pu : 3.80 [kg/cm^2 ]
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compression-end temperature at 0 [m] Tc: 572 [°K] (299 [°C])
caloric combustion temperature at 0 [m] Tec 2212 [°K] (1938 [°C])
polytrope combustion temperature at 0 [m] Te (T4): 2282 [°K] (2009 [°C])
exhaust temperature at 0 [m] Tu: 1232 [°K] (959 [°C])
Thermal efficiency Nth : 0.33 [ ]
Mechanical efficiency Nm : 0.67 [ ]
Thermo-dynamic efficiency Ntd : 0.22 [ ]
design hours : 1096 time between overhaul : 123
fuel consumption optimum mixture at1100.00 [rpm] at 0 [m] : 37.85 [kg/hr]
specific fuel consumption thermo-dynamic : 286 [gram/epk] = 0.389 [kg/kwh]
estimated specific fuel consumption (cruise power) at 0 [m] optimum mixture : 0.415
[kg/kwh]
specific fuel consumption at 0 [m] at 1100 [rpm] optimum mixture : 467
[kg/kwh]
estimated specific oil consumption (cruise power) : 60 [gram/kwh]
last check python :
DISCLAIMER above calculations are based on published data, they must be regarded as indication not as facts
Calculated performance and weight may not correspond with actual weights and performances and are assumptions for which no responsibility can be taken
Calculations are as accurate as possible, they can be fine-tuned when more data is available, you are welcome to give suggestions and additional information
so we can improve our program
For copyright on drawings/photograps/content please mail to below mail address
(c) B van der Zalm 30 november 2018 contact : bvanderzalm@ziggo.nl python 3.4.1