How fast can u exit the runway after ldg on a HST

[airbusa320pro]

[bar none]

If you land on a HST you are definitely exiting the runway!

[William A Bong]

There does not seem to be any "official" guidance from either the CAA or the FAA.

But, according to the Transport Canada website, depending on the angle of the HST, in the wet it would be either 50 or 35 knots.

William

[forget]

FAA Definition.

HIGH SPEED TAXIWAY - A long radius taxiway designed and provided with lighting or marking to define the path of aircraft, traveling at high speed (up to 60 knots), from the runway center to a point on the center of a taxiway. Also referred to as long radius exit or turn-off taxiway. The high speed taxiway is designed to expedite aircraft turning off the runway after landing, thus reducing runway occupancy time.

[Sepp]

The geometry, characteristics and parameters of RETs are standardised, both in Annex 14 and the Aerodrome Design Manual, Part 2, and should permit exit at up to 93km/h (rwy codes 3 or 4) or 65km/h (rwy codes 1 or 2) even when wet.

"Airport Design and Operation" (Kazda & Caves) is an excellent source of information for those interested in such things... or with rampant insomnia

[Cyclone733]

In terms of time, depends if I foul up and float at which point the answer is pretty damn quickly.

In terms of speed I've seen people have to put power on to keep the controllers happy

[oxenos]

3 wheels good, 2 wheels bad

[nautique]

Hi speed exits

Maximum of 55kts in ideal conditions.

[WannabeAirbusFlyer]

I've exited with an A320 on a high speed taxiway at around 40 knots once, which seemed rather cool

The Tower controller had in fact requested us during the approach to use that particular taxiway, to help him maintain the sequence.

[Port Strobe]

Perhaps BAA should install GATSOs that work in the opposite sense to those on the roads and we'd soon find out - 50 knots minimum for a kick off sound fair?

[BOAC]

I believe the generally 'accepted' max speed is 60kts for medium a/c, but NB ICAO do not specify a max - maybe your company has a limit? It also depends on the layout of the HST (RET) - if it has a sharp turn or crosses another route not far down it you need to be slower than if it has a long straight run like 'FR' on LGW 26L. IFALPA recommends that the HST/RET be used mainly to aid a more rapid exit of the runway and not for completion of the landing roll.

[Jetjock330]

Found some more info:

high speed taxiway

A long-radius taxiway designed and provided with lighting or marking to define the path of aircraft, travelling at high speed (up to 60 kt), from the runway centre to a point on the centre of a taxiway. The high speed taxiway is designed to expedite aircraft turning off the runway after landing, thus reducing runway occupancy time.

• also called: high speed exit, high speed turnoff, long radius exit, rapid exit taxiway and turnoff taxiway

Fr: voie de sortie rapide

[Intruder]

Our manual sez 60 Kt (747).

[point8six]

INTRUDER I do hope that is a dry limitation in your manual!

[Henry VIII]

On some Buses FCOM 3.1.20 states a taxi speed limitation.
In my case when above 76 tons "do not exceed a taxi speed of 20 Kts during a turn".

[Sepp]

This is hopefully also of interest, for those operating in Euro-land:

http://www.eurocontrol.int/airports/...20Taxiways.doc.

[Intruder]

INTRUDER I do hope that is a dry limitation in your manual!

It's not specified. I suppose they decided to let us use our judgement on this one thing...