Warbird Information Exchange

Apparently my obvious sarcasm eludes alot of Wixers.


Regards,
Mike

Apparently my obvious sarcasm eludes alot of Wixers.

I'll spell it out in simple terms so everyone will understand,

I started this thread to see what the civilian owned WWII bombers usually cruise around at. I know it all depends on how much fuel you want to burn and/or how much wear and tear you want to put on the engines.
I was suprised to find out how slow the B-17's cruise.

One of the replies was "we don't push them at all, especially around mountains".
It is obvious to me that no one is pushing these planes & thier engines to the limit, nor do they have 02 systems installed for high altitude flight.

I simply took Jim H's (aka Neon) answer and sarcastically asked if they pushed them when mountains aren't around.

Perhaps instead of a "Wing Commander" rank it should just say "Common Sense".

I hope this clears it all up for you.

Regards,
Mike

It's the same thing with a boat -- everyone wants to sail and have a great time, but come mooring at the end of the day/weekend, everyone disappears to escape the work!

I for one appreciate the information from the people flying them. And the sarcasm must have eluded me.

on our B-25J we use a cruisepowersetting of 30inch/1900RPM which gives us TAS 220 MPH at SL, fuelflow 160gal/h;
at FL250 in HighBlower FullThrottle/2000RPM TAS 265, ff 170gal/h
no guns, no turrets on ours! - should make a gain of about 15 MPH (estimated)
for pleasure flights, where speed is no concern, we use 26inch/1700RPM, getting 185MPH, fuelflow 105gal/h.
(all figures valid for standard atmosphere, medium load!)

at FL250 in HighBlower FullThrottle/2000RPM TAS 265, ff 170gal/h

????????? FL250 in a B-25. Ever try it?

Page A-2 of T.O. 1B-25(T)L-1 (the Randy Sohn -1) says, " Best fuel economy can be obtained at low altitudes (below 9500 feet) with high manifold pressure settings and low rpm."

That is best endurance too, but it would be at a very slow speed.