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Search: Posts Made By: rudderrudderrat
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Forum: Tech Log
15th Sep 2010, 21:54
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Hi, It looks like I won't need to bring my...

Hi,

It looks like I won't need to bring my 1944 brass binnacle with Sperry Gyrocompass (to find True North) on the flight deck any more.

This Honeywell link (see page 1.9)...
Forum: Tech Log
14th Sep 2010, 20:09
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Hi Lotetu, Once you've selected ATT, then...

Hi Lotetu,

Once you've selected ATT, then you've stopped the IRS from processing data. Did the MCDU have the message, "IRS Frozen at"?

See FCOM 4.3.25. IRS monitor page.

Displays the...
Forum: Tech Log
13th Sep 2010, 22:23
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Trivia

Hi FE Hoppy,


I thought that at rest, a stable interference pattern was formed by the recombined laser light. The pattern changes when it is accelerated and the shifting interference pattern is...
Forum: Tech Log
13th Sep 2010, 21:23
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Hi Dick, Your PFD gets it's info from the...

Hi Dick,

Your PFD gets it's info from the IRS. Unless it's mounted correctly, you'd have the wrong pitch attitude showing or one wing low indication when you were straight & level etc.

I agree...
Forum: Tech Log
12th Sep 2010, 20:56
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Hi BOAC, Don't you use this system? ...

Hi BOAC,

Don't you use this system?

"Method for determining the heading of an aircraft.
United States Patent 4930085.

A method is disclosed for determining the heading of an aircraft...
Forum: Tech Log
12th Sep 2010, 13:16
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Hi Dude, How did Concorde's INS keep sense...

Hi Dude,

How did Concorde's INS keep sense of True North when you were flying with a Westward ground speed which matched Earth's rotation rate? In that case the aircraft would have no apparent...
Forum: Tech Log
11th Sep 2010, 11:31
Replies: 52
Views: 14,405
Posted By rudderrudderrat

I think you should see a stationary drift rate of...

I think you should see a stationary drift rate of (360/24) * Sin Lat .
Forum: Tech Log
11th Sep 2010, 10:38
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Hi Lotetu, If you get a chance to sit with...

Hi Lotetu,

If you get a chance to sit with ATT on stand for an hour or so, I'd be interested to know what drift rate you get.
Forum: Tech Log
11th Sep 2010, 10:03
Replies: 52
Views: 14,405
Posted By rudderrudderrat

Hi, Almost 100 years ago, Sperry and others...

Hi,

Almost 100 years ago, Sperry and others used the fact that the axis of a spinning gyro, with gravity causing precession, will align parallel with earth's spinning axis and hence they had...
Showing results 1 to 9 of 9


 
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