Jet takeoff performance

"karl gruber" wrote in message ...
I've been searching "Google" to find information on jet takeoff and landing
performance. I've searched AOPA and NBA, but can't find what I want. I'm
looking for a good dissertation on V1, V2, VR, BFL, second segment climb,
etc.


V1 is the take off decision speed. If you lose an engine below this speed, you shutdown
and stop on the runway. If you lose it after you attain this speed, you continue on the
remaining engine(s). Vr is the rotate speed, where you normally would lift the nose
on takeoff. V2 is the takeoff safetly speed, the (initial) climbout speed if you've lost an engine.
It varies from there depending on the aicraft, after reaching a given speed (usually something
like V2+10 knots or something), there are procedures for raising flaps, etc... and new speeds
to go with them.

"Ron Natalie" writes:

"karl gruber" wrote in message ...
I've been searching "Google" to find information on jet takeoff and landing
performance. I've searched AOPA and NBA, but can't find what I want. I'm
looking for a good dissertation on V1, V2, VR, BFL, second segment climb,
etc.


V1 is the take off decision speed. If you lose an engine below this
speed, you shutdown and stop on the runway. If you lose it after
you attain this speed, you continue on the remaining engine(s). Vr
is the rotate speed, where you normally would lift the nose on
takeoff. V2 is the takeoff safetly speed, the (initial) climbout
speed if you've lost an engine. It varies from there depending on
the aicraft, after reaching a given speed (usually something like
V2+10 knots or something), there are procedures for raising flaps,
etc... and new speeds to go with them.

And at least for the 'heavies' I understand these values depend on the
actual loading and density altitude conditions, rather than being
fixed constants.
--
David Dyer-Bennet, , www.dd-b.net/dd-b/
RKBA: noguns-nomoney.com www.dd-b.net/carry/
Photos: dd-b.lighthunters.net Snapshots: www.dd-b.net/dd-b/SnapshotAlbum/
Dragaera/Steven Brust: dragaera.info/

On 2003-11-20 15:34:21 -0800, David Dyer-Bennet said

And at least for the 'heavies' I understand these values depend on th
actual loading and density altitude conditions, rather than bein
fixed constants

You don't even have to be that heavy

For a Lear 35, the takeoff weight tabular charts show weights between 10,000 and 18,300
and the speeds vary in a range of about 103-141 for V1, 125 to 143 for VR, and 124 to 146
for V2. Note that V1 is the only speed that depends on density altitude. The others vary onl
with weight

--
Larry Fransso
Seattle, W
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