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stellar2422
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 Posted: May 18, 2010 - 03:35 AM
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Newbie
Joined: May 27, 2008 - 07:53 PM
Posts: 1
Status: Offline
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Is it possible to use a flat panel tv/monitor hookup to determine ctvs camera coefficients? we currently use a bulky 20in? crt monitor to accomplish this on our block 30's.
Thanks. |
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Sponsor
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 Posted: May 24, 2013 - 4:53 AM
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F-16.net Sponsor
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Viper-Spec
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Posted: May 18, 2010 - 11:34 PM
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Enthusiast
Joined: Nov 29, 2005 - 03:50 PM
Posts: 25
Status: Offline
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| You should be using the computer program (can't remember the name at the moment) to calculate the K and T numbers you get off the inside of the canopy in conjunction with your values calculated from your boresight (JG94-00-10 IIRC). A good specialist section will have the procedures in their Boresight Program book. |
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JoeSambor
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Posted: May 19, 2010 - 12:09 PM
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Forum Veteran
Joined: Dec 28, 2004 - 05:56 AM
Posts: 751
Status: Offline
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I believe the OP is speaking about the unapproved method for correcting camera coefficients by recording some real world symbology, slewing around a TD box on the HUD, and then viewing the video later in an effort to determine how many mils the camera is off. These offsets are then plugged into a bootleg program that generates new coefficients. I could be wrong...
There is an approved procedure for generating new camera coefficients in the 97JG which uses (I kid you not) a truck mirror mounted to a frame that sits on the canopy sill, which you use to find a distant object behind you. Then the TD box is slewed around to nine different locations on the HUD, and the resulting offsets are used to calculate the new coefficients.
I have only ever seen two of these fixtures, one at Nellis many years ago and one at a Guard unit in Montana. I have actually done the procedure, and it works. The trick to doing this calculation is that you have to have a distant object, meaning over three thousand feet away or so. Slewing the TD box around at EOR doesn't give you the distance you need. Eventually, you can change the canopy coefficients by this method by trial and error; sooner or later you will get the improvement you want. Just takes a while.
To answer your question directly, you can certainly use a flat panel monitor because the only thing you are interested in is getting a ballpark figure of how many mils you are off. You can do that with any type of display.
Best Regards, |
_________________
Joe Sambor
LM Aero Field Service Engineer
Woensdrecht Logistics Center, The Netherlands
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