On 20 Nov 2003 05:56:42 -0800, (Duck Dog) wrote:

snip

I understand that. I was just struck by the references to INS. BTW,
do you know whether any INS systems are used in GA aircraft?

snip

Not sure about the GA question.

I maintain a 1988 Hawker 800A that has one Laseref INS system. It also
has two independent GPS systems (added in the last 5 years).

Know of a couple local Gulfstreams (kinda getting out of the GA thing)
a III and a IV that have at least two independent INS systems. Am
thinking that the IV has three, but am not positive.

TC