B747 runway overrun (Video)
Join Date: May 2000
Location: New York
Posts: 510
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by skiesfull
If full credit for reverse thrust is included for a wet runway, then dispatch with a thrust-reverser locked out would be a no-go item in the MEL, which it is not. However, full reverse must be available for landing on a slippery/contaminated runway.
Since we're talking about US FARs:
FAR 25.109 . . . "The effects of available reverse thrust may be included as an additional means of deceleration using recommended reverse thrust procedures when determining the accelerate-stop distance on a wet runway . . . "
Join Date: May 2001
Location: Netherlands
Posts: 113
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Raas767
the data was compiled using test pilots from boeing with a brand new airplane with brand new brakes
Join Date: Apr 2005
Location: uk
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Watchdog - I don't think that you have understood my posting. An earlier posting suggests that reverse thrust must be factored into a wet runway take-off - this would preclude dispatch with a u/s T/R: the fact is that the B747 (all models) is certificated for take-off, wet or dry, using full manual braking and speedbrakes (from the Boeing Flight Crew Training Manual in compliance with FAR'S) without reverse thrust. Of course there will be other considerations including a reduction to the V1 and a possible weight penalty.
Roadtrip,- your post states "may be included" not "must".
Roadtrip,- your post states "may be included" not "must".
Join Date: May 2000
Location: New York
Posts: 510
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by skiesfull
Watchdog - I don't think that you have understood my posting. An earlier posting suggests that reverse thrust must be factored into a wet runway take-off - this would preclude dispatch with a u/s T/R: the fact is that the B747 (all models) is certificated for take-off, wet or dry, using full manual braking and speedbrakes (from the Boeing Flight Crew Training Manual in compliance with FAR'S) without reverse thrust. Of course there will be other considerations including a reduction to the V1 and a possible weight penalty.
Roadtrip,- your post states "may be included" not "must".
Roadtrip,- your post states "may be included" not "must".
Join Date: Apr 2005
Location: uk
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Roadtrip - we may be talking at cross-purposes here. The FAA has certified the B747 for take-off wet or dry, assuming no reverse. However, your airline and mine, may assume (in the case of dispatching with all reversers available), that in the event of an engine failure causing a rejected take-off, that only two reversers (symmetrical) will be available and the weight/V1 etc. will reflect this. In the case of dispatch with a T/R u/s, the data will assume an adjacent engine failure, which will mean no reverse available for stopping. For a departure with a u/s reverser, there may be a weight penalty, full power is required and for a wet runway, a V1 that assumes no reverse available.
The quote I made earlier, is taken directly from Boeing's own Flight Crew Training Manual for the 747-400, unfortunately I no longer have any manuals for the -100/200/300, but I flew the "queen of the skies" for 12 years and remember many occasions of dispatching with a u/s T/R, wet and dry.
I hope this clears things up?
The quote I made earlier, is taken directly from Boeing's own Flight Crew Training Manual for the 747-400, unfortunately I no longer have any manuals for the -100/200/300, but I flew the "queen of the skies" for 12 years and remember many occasions of dispatching with a u/s T/R, wet and dry.
I hope this clears things up?
Join Date: Oct 2005
Location: Medellín, Colombia
Age: 38
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by GlueBall
RNG is the airport, "Rio Negro," a town outside Medellin; MDE is the downtown airport.
The downtown Airport codes are SKMD/EOH and the Airport where the B747 ran off is SKRG/MDE. The downtown Airport used to have the MDE code until the Rionegro Airport was built, then the Rionegro took MDE and the downtown became EOH.
RNG is the VOR code though, 115.10 RNG (there's another one 111.8 CDV, CDV of "Córdova", as the Airport name is "José María Córdova").
I'm the person who took the pictures at Jetphotos. I have more at MyAviation (search under "Andrés Ramírez", or under the Airport or Aircraft) and just took more today of the process of scrap as of today Jun 30th, will upload them soon.
Beacon Outbound
Join Date: Mar 2002
Location: "Home is were the answer machine is"
Posts: 689
Likes: 0
Received 0 Likes
on
0 Posts
How did that tail fall off? It's there in the video, but not on the pictures.
It's scary to see just how clean the rear of the A/C will break off in an event like this.
Edit to add: Thanks SicIturAdAstra, that will teach me to post after I have been to the pub.
It's scary to see just how clean the rear of the A/C will break off in an event like this.
Edit to add: Thanks SicIturAdAstra, that will teach me to post after I have been to the pub.
Last edited by IRRenewal; 1st Jul 2006 at 05:39.
Join Date: Apr 2005
Location: uk
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Watchdog:-
UK ops have been JAROPS for some years now. The quote from the Boeing manual concerns certification by the FAA of a U.S. manufactured aircraft. It is highly unlikely that any other agency would have less stringent certification of the aircraft, in order to accept it on that country's register.
UK ops have been JAROPS for some years now. The quote from the Boeing manual concerns certification by the FAA of a U.S. manufactured aircraft. It is highly unlikely that any other agency would have less stringent certification of the aircraft, in order to accept it on that country's register.
Join Date: Jul 2006
Location: Oz
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
Wah Wah Wah.
I bet mamnagements glad the pilot's made it out so they have an arse to kick...!!!!!
Guys, as you are all aware of, many things contribute to such an accident. Personally I'm glad everyone made it out.
Only the people involved know the circumstances, ours is just speculation.
They walked away.
I bet mamnagements glad the pilot's made it out so they have an arse to kick...!!!!!
Guys, as you are all aware of, many things contribute to such an accident. Personally I'm glad everyone made it out.
Only the people involved know the circumstances, ours is just speculation.
They walked away.
