RE: [ihc] no IH content, but fun--

[bearbvd@xxxxxxxxxxxxxx (Greg Hermann)]

At 4:36 AM 10/26/04, Steven Stegmann wrote:
>Greg,
>
>Did you ever hear of the Napier Nomad diesel aircraft
>engine.  I saw one at the Smithsonian Udvar-Hazey
>center at Dulles Airport.
>
>Turbocharged diesel, with a second turbine whose
>output was combined with the shaft drive to the
>propeller.

Nope. Then again, have you ever heard of a Campini engine ?? A piston
engine in which all the crank does is drive the supercharger. Exhaust,
combined with (air cooled) engine heat provides thrust !!

Greg
>
>http://en.wikipedia.org/wiki/Napier_Nomad
>
>Steve
>--- Greg Hermann <bearbvd@domain.elided> wrote:
>
>> At 8:04 AM 10/25/04, Steven Stegmann wrote:
>> >There's a UP "Big Boy" in the St. Louis County
>> >Transportation Museum.  Hard to imagine something
>> like
>> >that moving.
>> >
>> >Steve
>>
>> The UP's 'Big Blows' were equally amazing, but not
>> as heavy as the 'Big
>> Boys'. They were gas turbine electrics--which burned
>> SO much fuel oil that
>> they had to have a tanker-tender just to carry their
>> fuel. I think, at
>> least, they had the decency to put traction motors
>> on the tender as well as
>> on the locomotive !!!
>>
>> But the MOST interesting UP thing I ever saw was, I
>> _THINK_ (never was able
>> to chase down the details) was what appeared to be a
>> combined cycle gas
>> turbine unit !!! Think it had to be a gas turbine
>> electric top cycle with a
>> RECIP STEAM bottoming cycle !!!!!! This was in '92,
>> saw it taking a long
>> freight down 'the ramp' in western Nebraska. My
>> guess would be a big two
>> shaft turbine--fan jet sort of affair--taking power
>> off the shaft to make
>> power for traction motors on the tender, and on the
>> leading and trailing
>> trucks, using the fan to pull air over a steam
>> condenser (yep, it appeared
>> to be a closed steam cycle, only a wisp of dark
>> exhaust smoke from it), and
>> then take the turbine exhaust through a fire tube
>> boiler (with perhaps a
>> bit of afterburn using the excess O2 in the exhaust
>> stream--to run the
>> pretty convention steam drivers !!!
>>
>> Greg
>>
>> >--- Greg Hermann <bearbvd@domain.elided> wrote:
>> >
>> >> At 11:30 PM 10/24/04, John M. Adams wrote:
>> >> >> -----Original Message-----
>> >> >> From: owner-ihc@domain.elided
>> >> [mailto:owner-ihc@domain.elided]On Behalf Of
>> >> >> Greg Hermann
>> >> >> Sent: Sunday, October 24, 2004 9:42 PM
>> >> >> To: ihc@domain.elided
>> >> >> Subject: [ihc] no IH content, but fun--
>> >> >>
>> >> >>
>> >> >> Saw a 148 wheeler (highway) rig today !!!!
>> >> >
>> >> >P.S. If that WAS an E60C or equivalent loco like
>> >> their other ones, its
>> >> >weight is typically between 185 and 195 U.S.
>> tons
>> >> (plus or minus a few
>> >> >pounds... :)
>> >>
>> >> Sorta light compared to, say, one of the UP's old
>> >> 'Big Boy' steam mallets
>> >> !!! Climbed and looked all over one of them once
>> at
>> >> the Forney
>> >> Transportation Museam once in Denver, before they
>> >> moved it. 1,250,000 lbs.
>> >> of iron in one of those critters !! :-)
>> >>
>> >>  If you add the weight of the two tractors, the
>> >> "jeeps", the
>> >> >carrier beam... Man, I don't want to think what
>> the
>> >> total weight of that rig
>> >> >was.
>> >>
>> >> Had to be in the neighborhood of 600 K lbs,,
>> maybe
>> >> even north of that,
>> >> including the ballast on the two tractors.
>> >>
>> >> Must really be a LOT of art involved for the two
>> >> tractor drivers to
>> >> coordinate their driving!
>> >>
>> >> Greg
>> >>
>> >> How do get a rating to drive something like that?
>> >> It's not like there's
>> >> >much opportunity to practice! Wish I could have
>> >> seen it...
>> >> >
>> >> >Any pictures?
>> >> >
>> >> >Thanks,
>> >> >
>> >> >John A.