"Dick Snyder" wrote in message
...
On Mon, 17 Nov 2003 20:19:57 -0500, "Allen"
wrote:

Thanks for the info guys. I checked out a web site with articles by
the
crews of the CH-47Ds that worked the mountain ranges in Afghanistan.
They frequently did landings at 17000 - 20000 ft. All very
interesting
and informative.

Allen, RCAF/Canadian Air Force, retired

Mind posting the link. As an ex-hook driver from during the
Vietnam era I'd be very interested. Our A-models had a service
ceiling of 12,500 due to hydraulic cavation. Hooks, at least the A,
B, & C models (all of which I flew), are hydraulic dependent (an
understatement to say the least). Can't even spool up the engines
without pressurizing the systems with the APU. A lot of changes were
made on the D model however.

Thanks,

Snyder, US Army, retired.

Here's a couple:

http://www.globalsecurity.org/milita...aft/mh-47e.htm

http://www.nationaldefensemagazine.o...cle.cfm?Id=850

Afraid I couldn't find the exact site I found last night. Shame on me
for not providing references for my sited info.

Allen