Major A [EMAIL PROTECTED] said:
How about the HSI on the A4 panel? It appears to be fixed at true
heading, and it doesn't seem to be adjustable (it's supposed to be a
gyro, so it should be).
Do you mean the AI or the HSI? The AI isn't adjustable because when I set it
up there wasn't a way
Just another question: I noticed that the different places in which
heading plays a role (the different indicators as well as the
autopilot) use magnetic and geographic heading at will. Are there any
plans to unify them and/or come up with a convention of what heading
is magnetic and what isn't?
Major A writes:
Just another question: I noticed that the different places in which
heading plays a role (the different indicators as well as the
autopilot) use magnetic and geographic heading at will. Are there any
plans to unify them and/or come up with a convention of what heading
is
- The autopilot in the 172 tries to keep the orange heading bug at the
top of the directional gyro, period. If you set the DG to the true
heading (as you would in the Arctic), then the autopilot uses true
Ever flown a (real) 172 across the North Pole? :-)
The only place you can get the
David Megginson writes:
The only place you can get the true heading directly is the HUD, which
isn't really meant to simulate anything you'll find in a small plane
-- it's just a (useful) developer's tool or a user's toy.
Note David is talking from a 'small plane' C172 perspective.
There
Major A writes:
- The autopilot in the 172 tries to keep the orange heading bug at the
top of the directional gyro, period. If you set the DG to the true
heading (as you would in the Arctic), then the autopilot uses true
Ever flown a (real) 172 across the North Pole? :-)
No,
Norman Vine writes:
The only place you can get the true heading directly is the HUD, which
isn't really meant to simulate anything you'll find in a small plane
-- it's just a (useful) developer's tool or a user's toy.
Note David is talking from a 'small plane' C172 perspective.
David Megginson wrote:
Major A writes:
- The autopilot in the 172 tries to keep the orange heading bug at the
top of the directional gyro, period. If you set the DG to the true
heading (as you would in the Arctic), then the autopilot uses true
Ever flown a (real) 172 across the
David Megginson writes:
Major A writes:
- The autopilot in the 172 tries to keep the orange heading bug at the
top of the directional gyro, period. If you set the DG to the true
heading (as you would in the Arctic), then the autopilot uses true
Ever flown a (real) 172
Andy Ross writes:
It's worth pointing out that a DG will work fine in the polar regions.
Other than precession (which has a 24 hour period -- hardly a huge
source of error), there's no way for it to know that it's over the
pole. It will even work fine on the pole itself, in the sense that
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