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Old 02-21-2016, 11:49 PM   #1
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Default flap down displayed on runway

i never did buy a flap down before. please advise if it were to be display on a runway. should the engine be in reverse thrust?

never actually seen been outside to be if the engine should be in reverse thrust.
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Old 02-22-2016, 01:54 AM   #2
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Default Re: flap down displayed on runway

On takeoff the flaps are set only slightly (like how the A350 models were made). Upon landing they are usually set to full deflection. So the only time you would see reverse thrust happening would be with flaps at the landing setting. In all fairness the spoilers would also be deployed in such a situation.
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Old 02-22-2016, 02:34 AM   #3
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Default Re: flap down displayed on runway

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Originally Posted by Sgt Caribou View Post
So the only time you would see reverse thrust happening would be with flaps at the landing setting.
Or rejected takeoff. The DC-8 had the ability for reverse thrust inflight, pretty neat if you ask me.
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Old 02-22-2016, 04:06 AM   #4
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Default Re: flap down displayed on runway

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Originally Posted by Sgt Caribou View Post
On takeoff the flaps are set only slightly (like how the A350 models were made). Upon landing they are usually set to full deflection. So the only time you would see reverse thrust happening would be with flaps at the landing setting. In all fairness the spoilers would also be deployed in such a situation.
wish they make model with movable spoiler and flap, together with the reverse thrust.
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Old 02-22-2016, 04:08 AM   #5
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Default Re: flap down displayed on runway

During the landing run the reversers are stowed at 80 kts to avoid hot air ingestion, leaving flaps deployed and spoilers out.

On the early B 747-100 and -200, leading edge devices automatically retracted when reversers were activated.

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Old 02-22-2016, 06:36 AM   #6
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Default Re: flap down displayed on runway

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Originally Posted by fongee View Post
wish they make model with movable spoiler and flap, together with the reverse thrust.
I'm afraid you are asking a bit too much.

On the real aircraft, spoilers or air brakes are very thin, what will be their thickness in the 1/200 scale ?

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Old 02-22-2016, 08:44 AM   #7
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Default Re: flap down displayed on runway

For all flap down diecast model...
They are in taking off mode as the airbrakes are not activate..

When a plane is landing,
Flap down and slightly airbrakes are used to lower the cruising speed to landing speed.
Once the main landing gears touch the ground..
Flap, airbrakes, reverse thrust and gear brakes are used..
To reduce landing speed to taxing speed..
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Old 02-22-2016, 09:14 AM   #8
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Default Re: flap down displayed on runway

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Originally Posted by fongee View Post
i never did buy a flap down before. please advise if it were to be display on a runway. should the engine be in reverse thrust?
The flaps on this model are in the 'takeoff' position. Most airlines will push back from the gate, start engines, and set the flaps for takeoff before taxiing, usually 10-15 degrees, so this flap configuration would represent an aircraft taxiing for takeoff, not one that is landing. Neither flaps or thrust reversers deployment would be appropriate.

If the aircraft were supposed to represent a landing aircraft, the flaps would be at 35-40 degrees during the approach. On landing, the spoilers and thrust reversers would be deployed and flaps would be in the 'full down' position but all 3 would be retracted before or soon after leaving the runway. A model with this configuration would be accurate for only the few seconds that the aircraft is braking on the runway, and would, as mentioned, contain many thin, breakable parts. To make these parts moveable would probably triple the cost of the model.

Last edited by Charlie Alpha; 02-22-2016 at 09:23 AM.
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Old 02-22-2016, 09:53 AM   #9
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Default Re: flap down displayed on runway

https://www.youtube.com/watch?v=VLSfocAiLcA

they only used flap up version too.
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