R2800 Engines for the B-17s/B-24s ?

[pasoleati]

Henning, I will check what the B-32 book by Wolf says as it has a manual extract on the topic. I waited soime 5 mins for the B-29 engineering manual to download, but I have up (the file is so huge).

[Micdrow]

Originally Posted by pasoleati

I waited soime 5 mins for the B-29 engineering manual to download, but I have up (the file is so huge).

The file is about 13.2 meg so if you have dial up it will take you a while.

[pasoleati]

I have broadband, but it is the slowest available and the transfer rate seemed to be about 45 bytes/sec.

[chuter]

That single engine B17 is the engine test bed (five engine) pictured above it with the wing engines 'shopped out.

Going from four 1820s to 2800s (two or three - wouldn't want four) would reduce the safety factor: lose a 1820 and you have 75% of your power left lose a 2800 and you've lost 33% to 50%, a big deal on a long range strategic bomber. Four propellers, though a bit smaller and with less power, are going to be more efficient than two larger higher powered ones for long cruise climbs.