On Sun, 16 Dec 2007 17:48:24 -0600, "Eric" wrote:

If you want teeth rattling and the feeling that your heart is going to
vibrate though your chest, you should try a B-52G with all 8 burning water
(water injection for the uninitiated).

I never got to work on the SR-71, but their power runs were always awesome.
Your teeth rattled from a 1/2 mile away.

A quick check says the -52 engines are rated at almost 57k lbs of thrust but you
can only get "hands on" with two at a time. Only? Yah, right!

The Rolls engines on the 747's and L1011's that I worked on were in the 40,000
lb. area, while the later planes, such as the 767, kicked it up quite a bit.
Get into the 777 and you're up there with two of the 52's engines at full power.

But any of 'em will vibrate your filllings pretty good. The "old timers" say
the piston engines rattled you around more than the jets... personally, I'll
admit going back as far as 707's but I've run a couple of fairly large radials.
They shook more but to me, they didn't seem to make the air vibrate like the big
jets do. For as smooth as they are, that much 'stuff' moving around at those
kinds of RPM, well, even trimming a 'little' engine on a DC-9 or MD-80 can
rattle you around pretty good. For most guys, the first time they experience it
is not something they'll ever forget!
Cheers,
jc