Ramón Fonseca wrote:
>
> Hi, Paul. Did you see this? If you do not know the fuel burning rate of the RX8 new engine, then, do you know how much fuel a current two rotor engine burns at cruise rpm? Tks ! Ramon
> Paul: Tks. What is the fuel burning rate in gallons per hour of a RX8 at cruise RPM? Does rotaries burn more fuel that reciprocating engines? and turbines? Kind rgds, Ramon
My guesss is it won't be a whole lot better than the current 13B at .47.
I would is .44 at best and maybe only .45 pounds per HP hour.
Small turbo props engines run .65.
Paul Lamar
Ramón Fonseca wrote:
Tks . How much is this in gallons per hour?
Also, how much in pounds per HP in normally aspirated engines? and Turbo?
Tks. Sorry for so many simple questions. I am new to this. I am a general aviation pilot (Cessna
182) and Helicopter pilot (Robinson and Alouette) starting to learn about experimental due to lack
of suitable priced machines in the certified market.
Tks and kind rgds,
Ra´mon
We don't really know what the BSFC will be for the turbo until
we acquire more data in the field.
GPH = (HP X BSFC)/6
Paul Lamar
The AirCraft Rotary Engine NewsLetter. Powered by Linux.
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Fuel weight = 6 pounds per gallon.
Fuel burn assumes a rotary BSFC of .47.
Engine HP GPH
-----------------
50 3.92
60 4.70
70 5.48
80 6.27
90 7.05
100 7.83
110 8.62
120 9.40
130 10.18
140 10.97
150 11.75
160 12.53
170 13.32
180 14.10
190 14.88
200 15.67
210 16.45
220 17.23
230 18.02
240 18.80
250 19.58
Fuel burn assumes a rotary BSFC of .46.
Engine HP GPH
----------------
50 3.83
60 4.60
70 5.37
80 6.13
90 6.90
100 7.67
110 8.43
120 9.20
130 9.97
140 10.73
150 11.50
160 12.27
170 13.03
180 13.80
190 14.57
200 15.33
210 16.10
220 16.87
230 17.63
240 18.40
250 19.17
Fuel burn assumes a rotary BSFC of .45.
Engine HP GPH
-----------------
50 3.75
60 4.50
70 5.25
80 6.00
90 6.75
100 7.50
110 8.25
120 9.00
130 9.75
140 10.50
150 11.25
160 12.00
170 12.75
180 13.50
190 14.25
200 15.00
210 15.75
220 16.50
230 17.25
240 18.00
250 18.75
Fuel burn assumes a rotary BSFC of .44.
Engine HP GPH
-----------------
50 3.67
60 4.40
70 5.13
80 5.87
90 6.60
100 7.33
110 8.07
120 8.80
130 9.53
140 10.27
150 11.00
160 11.73
170 12.47
180 13.20
190 13.93
200 14.67
210 15.40
220 16.13
230 16.87
240 17.60
250 18.33
Fuel burn assumes a rotary BSFC of .43.
Engine HP GPH
------------------
50 3.58
60 4.30
70 5.02
80 5.73
90 6.45
100 7.17
110 7.88
120 8.60
130 9.32
140 10.03
150 10.75
160 11.47
170 12.18
180 12.90
190 13.62
200 14.33
210 15.05
220 15.77
230 16.48
240 17.20
250 17.92
Fuel burn assumes a rotary BSFC of .42.
Engine HP GPH
------------------
50 3.50
60 4.20
70 4.90
80 5.60
90 6.30
100 7.00
110 7.70
120 8.40
130 9.10
140 9.80
150 10.50
160 11.20
170 11.90
180 12.60
190 13.30
200 14.00
210 14.70
220 15.40
230 16.10
240 16.80
250 17.50
