HUD readings Quiz!

Always wondered why the F-16 has a tailhook, or how big a bigmouth F-16's mouth really is ? Find it out here !
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Patriot

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Unread post26 Sep 2019, 08:53

Simple as f... :whistle: :salute: :beer:
Who give the most correct readings wins.
Polish F-16 Tiger Demo Team during rechealsal flight some time ago.


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sprstdlyscottsmn

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Unread post26 Sep 2019, 15:25

Heading 162
flight path marker ~2 deg above horizon, gun cross ~2.5+ deg above horison
current speed is 550KIAS, current G is 8.8, max G of the flight is 8.9
Baro Alt 210ft, Radar alt 270ft. climbing at ~900fpm. Alert altitude set to 500ft.
steerpoint is bearing 256 (4 o'clock) for 1.1nm. est time to reach is 7 sec. Current time 11:75:29
COM1 133.075MHz
COM2 128.5 MHz

some of that is a WAG.
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basher54321

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Unread post26 Sep 2019, 17:41

To add to that:

The current Steerpoint is 1 and is located behind or to the side maybe

HUD is in Nav mode
BE = 339degrees 025nm (cant remember which way round)

Wind is 256 degrees / 19kts

Low altitude warning set at 500ft

Active transponder modes are 3 and C. 6312 is related but don't know without cheating.

Transponder in Standby?

TACAN is set 22 Yankee

speed is 550KCAS (as the C)


Sorry what is the prize? :)
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outlaw162

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Unread post26 Sep 2019, 18:49

Inertial Angle of Attack (degrees between the boreline cross and FPV) approximately 9 degrees.

Mach 0.84

I would guess that 6312 is the assigned/selected mode 3 XPNDR code? I don't recall that displayed in the A/B HUD (no room), but probably a good feature, either for head up code changes in wx or maybe to emphasize and reassure the driver that all reply Modes when selected are set correctly for all the players with interrogators....including? those Patriot (missile not the OP) battery Army dudes who would likely get twitchy about an improper IFF/SIF response on recovery.
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sprstdlyscottsmn

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Unread post26 Sep 2019, 20:10

outlaw162 wrote:Mach 0.84

I can't believe I missed that!
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outlaw162

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Unread post26 Sep 2019, 20:26

I can't believe I missed that!


Actually, that's quite a good commentary on how cluttered that display is.

Hope it doesn't cost you the 'prize'. :mrgreen:
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Unread post26 Sep 2019, 20:36

basher54321 wrote:Sorry what is the prize? :)


The personal satisfaction and the admiration of another forum users. Things money cant buy! :thumb:

Ps. What is M 3 C and what 6312 number refers to?
What means TACAN is set at 22 yankee?
The "C" next to 550 stands for Calibrated? Does it mean the speed refers to Mach number which is altitude/presure/temperature dependent...? What other speed modes are avilable?
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basher54321

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Unread post26 Sep 2019, 22:08

The Polish Block 52+ might be somewhat different, however there are various modes that can be used as part of the IFF setup so if Modes 1,3 and C were active then the readout would likely be M13C

Modes 3 and C are probably Civilian modes and Outlaw I think is right that the 6312 is the Mode 3 code. (other codes are probably not displayed on that page )

That is just the TACAN channel which is a form of Navigation. If you worked on the MiG-21Bis then did that have RSBN/PRMG? - was that next to the rubber band :D

Probably a choice of Ground Speed, CAS and TAS (True). There are other speed types as well that you may wish to read up on.
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Unread post27 Sep 2019, 00:16

Thank you.
All of you are awesome and badass!
Would you be so nice to do it again, by these numbers please? :D


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Ps. Since the Viper has the aoa limiter built in with the flcs, does the AOA indication even displays itself on the hud in digital form like i.e. in the Hornet? Maybe in another HUD mode like dogfight mode? I know while landing there is the AOA staple that helps finding the right angle for touchdown but other than that Ive never seen aoa being displayed there.
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Unread post28 Sep 2019, 10:37

Just one question. What is the symbol marked with number 16 called? A dot witch dash attached. I know it shows a vector direction but dont know the specific name
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basher54321

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Unread post28 Sep 2019, 13:32

Only seen referred to as Tadpole.

A digital AOA reading could be on the HUD of a different countries version but without seeing them all --
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gta4

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Unread post01 Oct 2019, 09:59

do you have the full video? I've always been curious about how a viper performs with CFTs.
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Unread post01 Oct 2019, 10:03

Unfortunately no, just a single frame.
How Viper performs with CFTs? Definately worse than without it. ;)
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Unread post01 Oct 2019, 14:05

Just the extra CFT weight would do it.
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Unread post06 Oct 2019, 02:26

Patriot wrote:Just one question. What is the symbol marked with number 16 called? A dot witch dash attached. I know it shows a vector direction but dont know the specific name
Flight Director steering to the selected steerpoint/waypoint. It's not G-compensated AFAIK which is why it is where it is in the FOV. If you were wings-level the cue would be on the zero pitch line and if you were flying right at the waypoint the cue would be inside the Flight Path Marker.

I was surprised I remember most of that stuff having not seen it in damn near 20 years but 11, 12, 13, 17, & 18 escapes me just now.

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