Having trouble getting it up

Post by **codrivermike** » Sat Jan 14, 2006 11:58 am

It could be too much beer!!

But seriously though. When I try to get the big planes, 747, 767, Airbus 340 out of Manchester I'm running out of runway and using Stockport high street. I've tried it with flaps in both the first and second notches but it seem to make little difference.
I sit at the end of the runway, run the throttles fully up and hold for a few seconds before releasing the brakes. At about 150kts I bring the nose up about 8deg then ease the stick back slightly further but the . still won't unstick from the tarmac in time.
Any ideas chaps?

Best regards

Michael

jbilton · Post by **jbilton** » Sat Jan 14, 2006 12:51 pm

codrivermike wrote:It could be too much beer!!

Best regards

Michael

Hi
I was about to say..........its a good job this thread isn't in the open forum....

Cheers
Jon

Speedbird083 · Post by **Speedbird083** » Sat Jan 14, 2006 12:51 pm

Make sure you've got a decent amount of fuel on. If you're using a full fuel load on a 747 then you probably will struggle to get it off many runways.

Adjust the trim settings.

Flaps. Check what the indents are. On Airbus' there are only 3 or 4 flap settings so 1 and 2 are good for take-off.
On Boeing there's usally more. The fisrt two flap settings may only be 1' or 2' of flap and thats not sufficient. I usually use 5' for most 737 flights, but upto 15'-20' for heavies.

Post by **codrivermike** » Sun Jan 15, 2006 12:08 pm

I checked the payload/fuel and was way overweight. No wonder it took off like a Dodo. I'm doing a flight from Manchester to Boston-Logan with a 767 cargo and I've checked that I can make it on 50% fuel in all tanks but I've still had to chuck some cargo out just to make take off weight. I got off the ground at Manchester but the people in Stockport still had to duck.

Loading at Manchester

Climbout over Stalybridge

CaldRail · Post by **CaldRail** » Sun Jan 15, 2006 12:48 pm

codrivermike wrote:It could be too much beer!!

But seriously though. When I try to get the big planes, 747, 767, Airbus 340 out of Manchester I'm running out of runway and using Stockport high street. I've tried it with flaps in both the first and second notches but it seem to make little difference.
I sit at the end of the runway, run the throttles fully up and hold for a few seconds before releasing the brakes. At about 150kts I bring the nose up about 8deg then ease the stick back slightly further but the . still won't unstick from the tarmac in time.
Any ideas chaps?

Best regards

Michael

Flaps. The flight model isn't too good here. Use max flap for quicker unstick. Raise flaps in increments - not all at once or too low in height.

Fodda · Post by **Fodda** » Mon Jan 16, 2006 3:01 pm

As was mentioned above, give it some nose up trim as well before take off... Generally about +5 to +20 depending on aeroplane. The VC-10 and Trident for instance won't let go unless the trim is set correctly!

sp762 · Post by **sp762** » Thu Jan 19, 2006 4:06 am

One word - JATO

sp762 · Post by **sp762** » Thu Jan 19, 2006 4:07 am

Mmmm. Hercalicious!

Post by **codrivermike** » Thu Jan 19, 2006 8:20 am

Americans. Typical. Lots of thrust up the bum.

sp762 · Post by **sp762** » Thu Jan 19, 2006 9:20 am

Hmmm. RAF Canberras were tested with JATO, too, IIRC.

Speedbird083 · Post by **Speedbird083** » Thu Jan 19, 2006 10:40 am

I saw a video somewhere of a rocket system designed to give the Hercules (i think) even great landing capability.
It worked too.
The aircraft touched down, rockets were fired... and it pretty much blew up on the spot.
Couldn't have gone more than 10ft.

Fodda · Post by **Fodda** » Thu Jan 19, 2006 12:02 pm

sp762 wrote:One word - JATO

Isn't that a RATO? Rocket assisted? They look like solid boosters to me rather than jet engines.

166Driver · Post by **166Driver** » Thu Jan 19, 2006 8:38 pm

Speedbird083 wrote:I saw a video somewhere of a rocket system designed to give the Hercules (i think) even great landing capability.
It worked too.
The aircraft touched down, rockets were fired... and it pretty much blew up on the spot.
Couldn't have gone more than 10ft.

Yes I've seen that one too. The rockets were supposed to act as reverse thrust, but the force was so much the wing snapped off!

Speedbird083 · Post by **Speedbird083** » Thu Jan 19, 2006 11:51 pm

Yes, i'm not sure whether they made into into service or not. I think the video was of the prototype and the horizontal rockets were fired before the craft touched down - by accident - giving it the aerodynamic profile of a brick and naturally it slammed into the tarmac.

I've had a quick search but can't find it. Did find a few .mov videos of a c130 landing on a U.S carrier though.

sp762 · Post by **sp762** » Fri Jan 20, 2006 4:39 am

I think it is RATO, technically. But the USAF calls it JATO, so there you go.

Atomic Systems

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