Why are multiple engines different?

"Allen" wrote

Boeing 727 also has procedure for two-engine take-off

???

What, like a normal operations?
--
Jim in NC

"Morgans" wrote in message
...

"Allen" wrote

Boeing 727 also has procedure for two-engine take-off

???

What, like a normal operations? --
Jim in NC

Umm, how many engines does a Boeing 727 have? I don't understand your
question. It would not be normal to T.O. with one of the three engines
inop.

allen

On Thu, 19 Oct 2006 21:57:43 GMT, "Allen"
wrote:


"Morgans" wrote in message
...

"Allen" wrote

Boeing 727 also has procedure for two-engine take-off

???

What, like a normal operations? --
Jim in NC

Umm, how many engines does a Boeing 727 have? I don't understand your
question. It would not be normal to T.O. with one of the three engines
inop.

allen

http://en.wikipedia.org/wiki/United_Airlines_Flight_266

Don

On Thu, 19 Oct 2006 05:12:46 GMT, RK Henry
wrote:

On Wed, 18 Oct 2006 19:07:51 +0200, Mxsmanic
wrote:

Neil Gould writes:

By the time one is rated to fly -- anything, not just multi's -- one has
received training in all aspects of the operation of the plane, including
engine out. Taxiing with a single engine would be part of that training.

So why doesn't anyone seem to have done it?

In fact, they do. I often see multis taxiing in to the ramp with just
one engine running. Mostly turboprops.

That saves more than fuel. Time to overhaul on those engines is
measured in both total hours and number of starts. When you are
looking at several hundred thousand dollars for a small one and who
knows for the large ones it behooves them to keep the number of starts
down.



Curious coincidence: I just saw the show on CNBC about American
Airlines that they're saving a lot of fuel by taxiing on just one
engine.



RK Henry
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

On Thu, 19 Oct 2006 22:37:08 GMT, Don Tuite wrote:
On Thu, 19 Oct 2006 21:57:43 GMT, "Allen"
wrote:

Umm, how many engines does a Boeing 727 have? I don't understand your
question. It would not be normal to T.O. with one of the three engines
inop.

http://en.wikipedia.org/wiki/United_Airlines_Flight_266

That article describes a 727 accident near Los Angeles in January
1969. The summary says the aircraft departed LAX with two of three
engine-driven *generators* operable (not with one *engine* inop),
and two minutes after takeoff the crew shut down the No. 1 engine
after a fire warning, taking a second generator offline. The single
remaining generator overloaded and shut down, leaving the aircraft
with no electrical power.

Flying at night over water in marginal conditions (visibility was
less than 3 miles in fog and rain) the crew was unable to maintain
control of the aircraft and it crashed into Santa Monica Bay four
minutes after takeoff. This accident led to the FAA requirement
for battery-powered standby instruments in transport category
aircraft.

You can download a PDF copy of the 1970 NTSB report (AAR70-06)
from the Embry-Riddle library's web site at:

http://amelia.db.erau.edu/reports/ntsb/aar/AAR70-06.pdf


ljd

"Allen" wrote in message
om...

"Morgans" wrote in message
...

"Allen" wrote

Boeing 727 also has procedure for two-engine take-off

???

What, like a normal operations? --
Jim in NC

Umm, how many engines does a Boeing 727 have? I don't understand your
question. It would not be normal to T.O. with one of the three engines inop.

Ooops! I was thinking of a 717, I think.
--
Jim in NC

Good GAWD...I show 275 posts (and that starts with a RE for what
should have taken a single paragraph, or two with expansion on the
reason.
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

"Roger (K8RI)" wrote in message
...
Good GAWD...I show 275 posts (and that starts with a RE for what
should have taken a single paragraph, or two with expansion on the
reason.
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

I know. he (that needs not be mentioned by name) is a plague descending upon
us.

I wonder how many worthwhile members have left us, now. I don't see many of the
regulars around here, lately.
--
Jim in NC

On 10/21/06 11:01, Morgans wrote:
"Roger (K8RI)" wrote in message
...
Good GAWD...I show 275 posts (and that starts with a RE for what
should have taken a single paragraph, or two with expansion on the
reason.
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

I know. he (that needs not be mentioned by name) is a plague descending upon
us.

I wonder how many worthwhile members have left us, now. I don't see many of the
regulars around here, lately.

Well, it could be that 90% of the activity is due to the troll's threads,
and most have (wisely, IMHO) decided not to respond to him further?


--
Mark Hansen, PP-ASEL, Instrument Airplane
Cal Aggie Flying Farmers
Sacramento, CA

"Mark Hansen" wrote

Well, it could be that 90% of the activity is due to the troll's threads,
and most have (wisely, IMHO) decided not to respond to him further?

Could be.

I have an idea! Lets all stop responding to him, and when he goes away, we can
see how many left!

Well, at least I tried.

Missed it by ... that much? g
--
Jim in NC