Power Curves: B-26A's & Early B-26B's

[Zipper730]

I'm curious if anybody has good graph that depicts the speed & altitude, as well as horsepower available for either the B-26A's or the early B-26B's (prior to the extension of the wings)?

 

[Greg Boeser]

When you say early B-26B, do you mean those that had the R-2800-5 or the R-2800-41 or -43?

 

[Zipper730]

When you say early B-26B, do you mean those that had the R-2800-5 or the R-2800-41 or -43?

Starting with the B-26B-10 the wings were enlarged right?

 

[wuzak]

Can't find what you are after in here?

B-26 Performance

 

[Greg Boeser]

Zipper730 wrote: Starting with the B-26B-10 the wings were enlarged right?

Technically, the B-26C-5, first manufactured in Omaha in August 1942, were the first B-26s with the long wing. The B-26B-10 didn't start rolling off the production line in Baltimore until Jan '43.

 

[Greg Boeser]

The B-26, B-26A and the first 81 B-26Bs were equipped with 1850 hp R-2800-5 or -39 equivalent (B-26A-1).
The B-26B(-1) through -4 had short wings and the 2000 hp R-2800-41 or 43.
B-26C-5, B-26B-10 and later had long wings and 2000 hp R-2800-43.

 

[Greg Boeser]

Here's one from the pilot's manual for B-26, B-26A

 

[Zipper730]

Here's one from the pilot's manual for B-26, B-26A[

It seems to indicate horsepower is 1500 at low blower, looking at the chart, it seems to have a twin-speed setting, I don't know what horsepower is produced in high blower?

The idea I was thinking of was, if you had a twin-blower set-up like the F4U-1 or F6F-3, and the same horsepower as either of those two, how much of a difference would you see in speed at higher altitudes.

The chart reads out everything except horsepower altitudes.

 

[Greg Boeser]

High blower above 13000 ft.

 

[Greg Boeser]

It seems to indicate horsepower is 1500 at low blower, looking at the chart, it seems to have a twin-speed setting, I don't know what horsepower is produced in high blower?

The idea I was thinking of was, if you had a twin-blower set-up like the F4U-1 or F6F-3, and the same horsepower as either of those two, how much of a difference would you see in speed at higher altitudes.

The chart reads out everything except horsepower altitudes.

High blower above 13000 ft.
There are other charts for horsepower at different altitudes, throttle settings, rpm.
A later manual presents the info in altitude bands at various load weights.

 

[Zipper730]

High blower above 13000 ft.

Okay

There are other charts for horsepower at different altitudes, throttle settings, rpm.

I don't have that with me at this moment...