March 4, 2004 at 7:31 am
Just wondering, the TU 144 did not have reverse-thrust levers and only stopped using parachute. So did it require the full runway for landings?
By: SOC - 7th March 2004 at 09:02
Only a matter of time before I saw this one 😎
No Tu-144 ever had thrust reversers.
The landing length of the Tu-144 prototype: 4,920 ft (1500m)
The landing length of the Tu-144S: 8,530 ft (2600m)
Those figures are without using braking parachutes (well, at least for the Tu-144S, maybe not for the prototype), which are obviously not a good thing to be dropping all over civillian runways 😀
By: Arabella-Cox - 6th March 2004 at 10:39
Are the canards used to push/pull the nose down?
Yes, the Canards are lifting control surfaces that generate an upward force at the nose to point the tail downwards for takeoffs.
The early model without the canards needed control surfaces on the wing to generate a downward force to help raise the nose and push down the tail. With Canards both surfaces can generate lift which reduces drage and increases lift at takeoff and landing.
I think concorde lands at a speed of 150-160 knots. Maybe even 145.
Landing spped is given as 280km/h or 174mph for the Tu-14, which works out to be about 150 knots.
By: Jeanske_SN - 5th March 2004 at 20:29
Yes. A 747-400 with 5% fuel and not too heavy load kan approach at 135 knots.
The concorde has V1 at 180 and VR at 200 knots. It all depends on the weight of course, but a fully loaded Boeing 747-400 has VR around 155 knots.
I think concorde lands at a speed of 150-160 knots. Maybe even 145. Yes, that means Concorde is aerodynamically very special, because the stall speed of a 747-400 with flaps up at low load is around 160 knots.
The approach speed of Concorde is closer to the stall speed, however, so pilots have to approach with a safe (thus higher) approach speed just in case the headwind suddenly stops or is constantly changing. That last safety measure is actually always done.
By: rekotsGBOAE - 5th March 2004 at 18:46
Concorde
Didn’t Concorde 001 only have a parachute and i think that stopped quicker than any other aircraft in that time, and Concorde’s approach speed was way way higher than normal aircrafts.
By: Jeanske_SN - 5th March 2004 at 17:10
Are the canards used to push/pull the nose down?
Matthew, a longhaul aircraft landing with MTOW would give trouble. I suppose you mean MLW?
By: Arabella-Cox - 5th March 2004 at 08:23
I think the combination of canards and parachutes should have resulted in a fairly normal landing run… the canards shifting the lift forward so that the wing mounted control surfaces could be generating a downward force to get the aircraft airborne or for landing instead of applying a force upward to push the tail end down and the nose of the aircraft up for takeoffs and landings.
By: KabirT - 4th March 2004 at 12:02
I dont think it will be the same…i think teh speed of the 144 on approach was higher than others.
By: KabirT - 4th March 2004 at 09:27
what i am asking is does it require the full runway length to land……. most aircrafts dont need the full runway as they have reverse-thrust levers.:rolleyes:
By: Arabella-Cox - 4th March 2004 at 08:33
So did it require the full runway for landings?
What an unusual question…
It needed A runway to land… why would it matter how much of it it used?