PPRuNe Forums - V-speeds.

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Lump Jockey

9th March 2003 08:32

V-speeds.

Haven't searched if it's come up before, and sorry if it's wrongly posted, but....is there anywhere I can turn for ALL V-speed abbrevs, on the net?
Thanks a lot!
LJ.

Pegasus77

9th March 2003 11:02

V1 - decision speed
Vr - rotate speed
V2 - EO-climbout speed
Vmcg - minimum speed in which youre controllable on the ground with one engine inop
Vmca - the same, but then in the air
Vmbe - max brake energy speed
Vmu - minimum unstick speed (lowest 'flyable' speed)
Veo - engine failure speed (in certification 3 secs before V1)
Vmo - Max operating speed
Mmo - Max operating mach
Vs - stall speed
Vs1g - 1g-stall speed

I'm sure I forgot to mention many!

P77

mutt	9th March 2003 12:50

Quote:

V1 - decision speed

V1 has evolved into an "ACTION" rather than a "DECISION" speed.

Quote:

Veo - engine failure speed (in certification 3 secs before V1)

Are you sure that this is based on 3 secs??? I always thought that it was 1 sec and called Vef.

Mutt.

411A	9th March 2003 15:01

V2, JAR speak.....?

V2 in the USA is referred to as takeoff safety speed, and has been thus for a very long time.

dolly737

9th March 2003 17:37

Some suggestions:

Look here , here , here or click on 1.2 (Abbr. & symbols) here :D

hope that helped a bit,
happy landings

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