Why the HUD data in a MFD? - Page 4 - ED Forums
 


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Old 10-11-2017, 07:59 AM   #31
Mule
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Originally Posted by neofightr View Post
It's for redundancy, in case the HUD display actually fails. The standby instruments are placed way down the front console and would be a pain to constantly reference during IFR and night.

If the HUD is working normally then you would never have the hud repeated on the DDIs unless you were on autopilot and was doing some serious heads-down map reading on the HSI and kneeboard wanted to glance at the DDI to verify altitiude and speed are still good.

-retired f18 pilot
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Old 10-11-2017, 02:17 PM   #32
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A little more detail on redundancy, if the HUD fails, switching to the DDI HUD is easier for the pilot to do since all the information is displayed in the same format. As opposed to if the HUD failed and switching to the stand by instruments (steam gauges) it would take some mental switching gears - which would not be good during night or IFR ops.

My buddy who flew with VFA-37, had a No HUD carrier landing at night, and got his only OK pass ever.
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Old 10-11-2017, 02:40 PM   #33
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Originally Posted by Mad Dog 7.62 View Post
Bingo, we have a winner. Military pilots spend a lot of time "head down" in their radars and other sensors, this allows them to still see critical flight info without looking up. I was told this by a very experienced USAF F-22 flight instructor.
I have wondered why a Su-27 etc have their SPI-15 RWR at bottom instead just next to HUD. And only logic I have is that when you are maneuvering high G, it is easier to look slightly down so your important instruments are still in vision cone.

This is something we don't have in DCS, we can freely move a head and body instead tightly strapped to seat or semi-tightly that is limiting capability look at six (ie why F-16 bubble starting at elbow is so great vs F-18 that is deeper and blocked more at six) and especially when pulling higher G forces we can just look around like nothing affecting us.

A HUD repeater became important for me in VR as it makes landings far more easier in hars weather as snow doesnt cause problems for focusing. And same time it is easier to do avoidance maneuvers when RWR is at low.
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