New navigation system

[gleeso]

Been thinking about upgrading the nav systems in my PA 22-150.
What do you blokes living on the wrong side of the equator reckon about
one of these?
Seems like a fairly simple system to us Aussies.
Would it work in a Rebel?

New Navigation system for aircraft;

To ensure compliance with the NAS.

The equipment and hence the aircraft, knows where it is at all times. It
knows this because it knows where it isn't.

By subtracting where it is from where it isn't, or where it isn't from
where it is, depending on which is the greater, it obtains a difference
of deviation.

The internal guidance system uses deviation to generate corrective
commands to fly the aircraft from a position where it is to a position
where it isn't.

When the aircraft arrives at the position where it wasn't, the position
where it was is now the position where it isn't.

In the event that the position where it is is not the same position
where it originally wasn't, the system will acquire a variation.

(Variation is caused by external factors, the discussion of which is
beyond the scope of this simple explanation, and the comprehension of
most pilots)

The variation is the difference between where the aircraft is and where
it isn't.

If the variation is considered to be a significant factor, it to may be
corrected by the internal system. The aircraft must know where it is.

The thought process of the equipment is as follows:

Because a variation has modified some of the navigation information
which the aircraft has acquired, it is not sure where it is, however, it
is sure of where it isn't and it knows where it was

It now subtracts where it should be from where it isn't ( or vice-versa)
and by differentiating this from the algebraic sum between where it
shouldn't be and where it is, it is now able to obtain the difference
between it's deviation and it's variation, this difference is called
"error".

Note: For a fuller description of the equipment, it will be necessary to
refer to the

Unit's technical manual.

John Gleeson

VH-NLA (ex N4500A Downunder)




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[Ken]

Hi John

I've found that method works rather well, except of course on tuesdays!

I know that you think that you understand what I said.
However I'm not sure that you realize that what I said,
is not what I meant...

Ken

gleeso wrote:

Been thinking about upgrading the nav systems in my PA 22-150.
What do you blokes living on the wrong side of the equator reckon about
one of these?
Seems like a fairly simple system to us Aussies.
Would it work in a Rebel?

New Navigation system for aircraft;

To ensure compliance with the NAS.

The equipment and hence the aircraft, knows where it is at all times. It
knows this because it knows where it isn't.

By subtracting where it is from where it isn't, or where it isn't from
where it is, depending on which is the greater, it obtains a difference
of deviation.

The internal guidance system uses deviation to generate corrective
commands to fly the aircraft from a position where it is to a position
where it isn't.

When the aircraft arrives at the position where it wasn't, the position
where it was is now the position where it isn't.

In the event that the position where it is is not the same position
where it originally wasn't, the system will acquire a variation.

(Variation is caused by external factors, the discussion of which is
beyond the scope of this simple explanation, and the comprehension of
most pilots)

The variation is the difference between where the aircraft is and where
it isn't.

If the variation is considered to be a significant factor, it to may be
corrected by the internal system. The aircraft must know where it is.

The thought process of the equipment is as follows:

Because a variation has modified some of the navigation information
which the aircraft has acquired, it is not sure where it is, however, it
is sure of where it isn't and it knows where it was

It now subtracts where it should be from where it isn't ( or vice-versa)
and by differentiating this from the algebraic sum between where it
shouldn't be and where it is, it is now able to obtain the difference
between it's deviation and it's variation, this difference is called
"error".

Note: For a fuller description of the equipment, it will be necessary to
refer to the

Unit's technical manual.

John Gleeson

VH-NLA (ex N4500A Downunder)

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