Mooney's that can do 1,000 nm

[Cris]

Quote: jetdriven

Where does the 5.8 LB/GAL figure come from?

That is out of my POH under the sample loading problem for weight and balance. ie 5.82 lbs/gal. I have seen it else where including the Power Plant limitations **100 LL fuel is calculated at 5.82 lb/gl 100 Octane is calculated at 6 lb/gal. As Mooney Marketing became more aggresive with their range and payloads I think that is when the 5.82 gal/hr was used. Others can check their POH but I would think this started in the 90's It is in the Acclaim, Ovation and Eagle POH's. It is also on the MAC website.

[Jerry 5TJ]

Fuel Weight Calculations:

The density of 100LL depends on temperature.

C	kg/liter
0	0.7270
15	0.7143
25	0.7060

Converting to US gallons and pounds

C	lb/gal
0	6.07
15	5.96
25	5.89

 

Six pounds per gallon is a good estimate.

Reference:  http://www.etc-cte.ec.gc.ca/databases/Oilproperties/pdf/WEB_Aviation_Gasoline_110LL.pdf

 

[carusoam]

Fuel density is stated in my POH for the Ovation, hidden in one section, and only stated once....  I believe MAC uses 5.8.  Most of my flight training used 6.0.

Unfortunately, my POH is in the plane, I am going to have to re-read / re-familiarize it soon....

I like Jerry's numbers indicating the effect of temperature on density. Plan to buy your fuel on a cold day...

 

Best regards,

-a-

[Lood]

Well, after my short, first try at LOP, it seems that my F will also be capable of doing 1000nm. I lost about 8kt in cruise but even if we make it 10kt, I can fly for 8 hours at a TAS of 130kt, burning 7 gal/hr and still have 8 gal of fuel in reserve. This equates to total distance of 1040nm in no wind.

[carusoam]

Follow-up on fuel density...

The Ovation POH indicates in section II Limitations, Power Plant...

  100LL density is 5.82 Lbs/gal

  100 density is 6.0 Lbs/gal

 

Cris, as you mentioned above this is at the bottom of page 2-5 in my M20R POH.