wrote in message
oups.com...
When reading performance specs for helicopters I see the terms IGE and
OGE. I understand they are in ground effect and out of ground effect,
but when the altitudes are given they don't make sense to me. I thought
ground effect was up to one-half the rotor span and anything above that
would be out of ground effect. So what is the difference between hover
ceiling IGE and OGE?

You can hover at a higher altitude in ground effect than out of GE and your
service ceiling is going to be higher still.

Say, for example, ceiling is 15,000, HIGE is 8000 and HOGE is 6000.

Realize that hovering takes a lot more power/fuel than cruising does.


--
Matt

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Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO