Alan Burke wrote:

Hi,

I'm studying for my IR and having some trouble in calculating the outbound
times. Has anyone got any easy way of calculating the times.

Just finished mine over here in Germany. We were supposed to learn it,
however our flying clubs' Pipers have 2 GNS 430, with the excellent
"pictures"...

Anyway: Here is an easy method, if you have lets say 3+ miles to go in
a 100kts airplane:
Time: Subtract/Add the Wind-speed in seconds from/to your 1 min as
follows:
Wind angle 30° full speed. Wind angle 30..60° half speed. Wind angle
60° no correction.
Example: Wind 300/20, Course 290°. Wind angle=10°, that is "full
speed" so ADD 20seconds (20kts) to your 1 min.
By the way, that works with VORs as well.

Of course, in the real world, in a small plane...who gives a f* ?
You'll stay almost always in the protected area, no matter what heading
you fly.... ;-)

Cheers,

Kusi