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Old October 12th 06, 11:53 AM posted to rec.aviation.piloting
Gary Drescher
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Posts: 252
Default East River turning radius

"d&tm" wrote in message
...

"Gary Drescher" wrote in message
. ..
NYC's East River is about 2000' wide. So when you approach the north
endpoint of the VFR corridor there, you need to make a U turn with a
1000'
radius (or less if you're not right next to the eastern shore when you

start
the turn).

Suppose you're afraid to fly too slowly because you don't want to stall
during the turn, so you cruise up the river at 90 knots. Suppose you're
afraid to bank too steeply because you don't want to stall during the

turn,
so you use just a 30-degree bank.

Oops: your turning radius is about 1200'.

Using the East River VFR corridor requires planning the turn
carefully--especially since you need to leave an extra margin in case you
have to dodge high-density traffic there.


only have to increase bank to 36 degrees to get under 1000' radius ( or
slow to 81 kts) or go half way and 33 degrees bank and 85 kts. shouldnt
be
a problem in a 172 ( isnt that what you fly?) stall speed would still
only
be 55 kts. ( assuming 50 kts strait and level from memory)
terry


Yup, I fly 172s and Arrows. But the folks in the news were in a Cirrus. In
any case, the turn can certainly be executed--my point is just that the
situation is unusual (outside of mountain flying) for the degree of planning
that's required in order to make the turn safely.

--Gary