Where are you?

Jethro Rocker said:
A fascinating story, saw an excellent docu on this. Amazing,. for those who don't wish to read it all-

how does a 757 jetliner run out of fuel?
Faulty fuel gauge combined with a calculation for POUNDs instead of KILOS, a difference of over twofold!!!
Can it land like a glider on an unused airfield which is hosting drag races? Can it slow down without power?
Read and find out....
Click to expand...
Boeing’s are very graceful in the way they are designed to fly. A 747 can fly with only one engine. It also has a very long range for gliding.
 
Jethro Rocker said:
A fascinating story, saw an excellent docu on this. Amazing,. for those who don't wish to read it all-

how does a 757 jetliner run out of fuel?
Faulty fuel gauge combined with a calculation for POUNDs instead of KILOS, a difference of over twofold!!!
Can it land like a glider on an unused airfield which is hosting drag races? Can it slow down without power?
Read and find out....
Click to expand...
The Pilot was an experienced glider pilot, like Sully who landing in the Hudson. This Pilot is probably the only Pilot to have ever slipped a 767 coming in for landing.

Was also interesting that in their emergency procedures there was no checklist for what to do with both engines out ! We had to do a FEMA process on a lot of our equipment designs. Not sure how Boeing missed this one.

Cut and paste:
Failure Modes and Effects Analysis (FMEA) is a systematic, proactive method for evaluating a process to identify where and how it might fail and to assess the relative impact of different failures, in order to identify the parts of the process that are most in need of change.
 
SG John said:
Boeing’s are very graceful in the way they are designed to fly. A 747 can fly with only one engine. It also has a very long range for gliding.
Click to expand...
Sorry,. I thought 757, was a 767.
Pilot had to do a sideslip maneuver with a large jet aircraft not designed for such. Every time it was tried in a simulator afterwards it crashed.
Very little hydraulic power was all they had. Amazing story
 
Jethro Rocker said:
A fascinating story, saw an excellent docu on this. Amazing,. for those who don't wish to read it all-

how does a 757 jetliner run out of fuel?
Faulty fuel gauge combined with a calculation for POUNDs instead of KILOS, a difference of over twofold!!!
Can it land like a glider on an unused airfield which is hosting drag races? Can it slow down without power?
Read and find out....
Click to expand...


An A330 Air Transat glided for 75 miles for 19 minutes with no gas. Incredible.

Longest glider in history is the Air Transat flight, taken right from Wikipedia:

Air Transat Flight 236 was a transatlantic flight bound for Lisbon, Portugal, from Toronto, Ontario, Canada, that lost all power while flying over the Atlantic Ocean on August 24, 2001. The Airbus A330 suffered a complete power loss due to a fuel leak caused by improper maintenance. Captain Robert Piché, 48, an experienced glider pilot, and First Officer Dirk de Jager, 28, flew the plane to a successful emergency landing in the Azores, saving all 306 people (293 passengers and 13 crew) on board.[1] Most of the passengers on the flight were Canadians visiting Europe and Portuguese expatriates returning to visit family in Portugal.
Click to expand...
 
Session 5 said:
An A330 Air Transat glided for 75 miles for 19 minutes with no gas. Incredible.

Longest glider in history is the Air Transat flight, taken right from Wikipedia:
Click to expand...

Only because they established a glide path at high altitude.

A 747 has a 15:1 glide ratio. From 33,000 feet, that would equal maybe 140km and about 20 minutes of flight time....assuming the APU is working and can maintain cabin pressure. Thec747-8 has a RAT that supplies hydraulics in event of engine failure, but not the 747-4.

160 Knots IAS is the minimum windmilling speed, which will support, to some extent, control surface hydraulics, but this has nothing to do with supplying electrical power.

I spent a lot of time in the 747-8 flight simulator...
 
Jethro Rocker said:
Some big ones, no. Many can.
Dash 8, 737, smaller ones like a King Air 350....
Click to expand...

That's a relative statement. We are talking large, commercial aircraft.

Even the 747-8 flight manual states one engine will not maintain level flight, only slow descent.

Flight BA9 1982 is a good example.

I think belief in a lot of these myths, even amongst skilled pilots, is one reason for over-confidence and subsequent crashes.
 
Inspector #20 said:
That's a relative statement. We are talking large, commercial aircraft.

Even the 747-8 flight manual states one engine will not maintain level flight, only slow descent.

Flight BA9 1982 is a good example.

I think belief in a lot of these myths, even amongst skilled pilots, is one reason for over-confidence and subsequent crashes.
Click to expand...
Large commercial airceaft, different story especially ones with 4 engines. But many 2 engine aircraft can still fly on 1 engine but, as you say, not gain altitude at all. Beats falling like a rock.
 
Most of the time aircraft do not lose 2 or more engines but one.
A 747 can fly with one engine out and indeed, a King Air, granted a small aircraft, can even take off with one of 2 engines out. So a single engine failure is not necessarily catastroohic depending on aircraft and conditions.
 
Jethro Rocker said:
Large commercial airceaft, different story especially ones with 4 engines. But many 2 engine aircraft can still fly on 1 engine but, as you say, not gain altitude at all. Beats falling like a rock.
Click to expand...

It kinda reminds me of being in the Navy where you could stop a ship faster going "dead slow" than ringing full astern.
Jethro Rocker said:
Most of the time aircraft do not lose 2 or more engines but one.
A 747 can fly with one engine out and indeed, a King Air, granted a small aircraft, can even take off with one of 2 engines out. So a single engine failure is not necessarily catastroohic depending on aircraft and conditions.
Click to expand...

A 747 cannot maintain level flight on one engine. See the flight manual.
 
Jethro Rocker said:
With one engine out. 3 engines working...
Click to expand...

Jethro Rocker said:
Many aircraft can apparently do ok with only one engine but they tend to plummet on no engines!!
Click to expand...

Let's clarify....

The 747 flight manual states 2 engines are required to maintain level flight.

It wont maintain altitude on only one functioning engine.

I've always believed the flight manual over opinions and discussion topics.
 
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