On 11/2/03 12:56 AM, in article ,
"user" wrote:

My 2 cents,,,basically the same as Larry's,,,on the Big 'E' IO in '84
and the Connie IO in '85 we had SINS cable inputs sometimes available
for our US-3's, (Miss Piggy), . Otherwise we would Link with our
ASW-25 (UHF) to get CAINS updated Lat/Longs for the LTN-72's.... our
CODS only had gyros and AHRS (Attitude Heading Reference System),
although we could hook up a RO-RO LTN-72, and an internal 500 gallon
fuel tank for long haul repo flights. (Had a very uneasy feeling
sitting in the cargo compartment with a frickin leaking JP-5 fuel
cell, on numerous flights from PI to Singapore to Diego Garcia, etc.)
I still believe the most cost effective system is a dual AHRS combined
with GPS for the best representation of SA and Navigating. This type
of setup would cost less than a quarter of the over redundant and way
too expensive Ring Laser Gyro INS (over 150,000 per unit) and GPS
sysytems that are predominant in the newer Hornets, Orions and
Prowlers.


Foodog,

Dual AHRS/GPS wouldn't meet some of the specs required--especially in the
z-axis velocities.

--Woody