Cruise Performance

[edasmus]

I second "tropical." My 73G model (no turbo) does the same. I run 2300 RPM and whatever manifold pressure I can get depending on altitude. If I am low however, I will usually not run much more than 24 inches.

[Roger]

I fly mine non-stop between ART - SGJ typically 890-900 NM, and my average block to block is 5:50 - 6:10, for an average of 6 hours, at 150 Knots, 10.2 gals per hour per end. 7000 feet average 2300 rpm with throttle to the wall. 80 - 337-H.

[Skymaster337B]

Wow, isn't that pushing the gas....6.0 on a full tank?

[JeffAxel]

Originally Posted by Skymaster337B

Wow, isn't that pushing the gas....6.0 on a full tank?

I am guessing he has the long range 148gal capacity........

[Roger]

Yes, I have the interconnected 148 gallons useable, so no worry about burning mains first, then Aux, then back to mains,etc.. Plus I only fly it nonstop when VFR, so my 45 - 60 min reserve is not an issue. But there is an inverse relationship between the amount of liguid in the tanks, to the amount in your bladder in the 900 NM range

[billsheila]

I have a 65 337, serial #31, so likely the same rivet crew that built your bird. I typically get 148KT to 152KT (TAS) depending on aircraft loading, as top cruise speed. I have compared to book when I first got my machine and while off a little bit, it was pretty close as I recall the analysis.