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MightyGem
20th Jul 2011, 10:35
Could someone supply me with the following info for the A300-600?

Runway distance required from brakes off to the Rotate point.
Airspeed on climb out.
Angle of climb/rate of climb.

I appreciate that these figures can vary, but a rough guide is all I need.
I want to be able to compare it's take off profile with our helicopter's. Figures for the Beluga would be even better.

Thanks

tubby linton
20th Jul 2011, 11:17
A300 performance is of course very much weight related Take off weights can be in the order of 95-171 tonnes.
.Light weight the ground roll is very short and the pitch angle will be 17 degrees with a speed around 145kt(V2+15).This will also be with a maximum engine derate.Heavy weight and the groud roll will be about 6000ft ish,full power and a climb out speed of 185kt.The above is only a generalisation and will depend on runway length,flap setting obstacles etc.Most airbus performance is based on an improved(higher) V2 to get a better climb performance,but the A300-600 does climb well.
To use LGW as an example in an empty aircraft you will be about 1500ft by the time you get to the upwind threshold.A heavy aircraft will rotate around the FR turnoff on 26L and will be about 6-700ft at the far threshold. Climb performance can be up to 8000ft/min in a clean config empty aircraft at lower levels

MightyGem
20th Jul 2011, 14:17
Thanks tubby. What would be a typical ground run for a light aircraft? The runway in question has a TORA/ASDA of 6700 feet, so would the heavy aircraft have to be airbourne before the 6000ft point? Also by pitch angle to you mean do you mean it's flying up a slope of 17 degrees, or the nose is pitched up 17 degrees?

tubby linton
20th Jul 2011, 15:29
The nose is pitched up to 17 degrees.Generally on short runways if you work on two thirds of the runway length to use for your take off decision point V1 and the remaining third to stop if you had to.
Dublin RW16 which has a tora of 6798ft the bus max take off weight is 162t with a Vr of 146kt full power take off slat flap config 15/20(.aircraft weighs about 90t empty.)

MightyGem
20th Jul 2011, 16:57
OK, thanks for that.