TOViper Posted October 15, 2018 Posted October 15, 2018 (edited) As the thread name implies, what is the horizontal flight director needle really showing? During flying in the last few months I learned that the needle when HÖJD CI SI source is set on "LD" (and not on the radio altimeter "RHM"), it shows 500 meters as vertical navigation target for any waypoint, no matter of altitude parameters set in the mission editor. If I use RHM as the source of information, it shows something I wasn't able to really figure out for sure. :( The manual IMHO is quite weak on the topic "flight director for normal navigation"! Is someone able to give an explanation to me (and others)? Thanks in advance, TOViper edit: what is the needle showing (or what should it show) when the reference button was never used? Edited October 15, 2018 by TOViper Visit https://www.viggen.training ...Viggen... what more can you ask for? my computer: AMD Ryzen 5600G 4.4 GHz | NVIDIA RTX 3080 10GB | 32 GB 3.2 GHz DDR4 DUAL | SSD 980 256 GB SYS + SSD 2TB DCS | TM Warthog Stick + Throttle + TRP | Rift CV1
TLTeo Posted October 15, 2018 Posted October 15, 2018 I thought it showed the altitude you set as reference (by pressing the reference button)?
TOViper Posted October 15, 2018 Author Posted October 15, 2018 It seems to me that the autopilot "altitude hold mode" sets the reference new. Also, the reference button can be used outside of using the autopilot to set a new reference. Are there any other procedures on this? Visit https://www.viggen.training ...Viggen... what more can you ask for? my computer: AMD Ryzen 5600G 4.4 GHz | NVIDIA RTX 3080 10GB | 32 GB 3.2 GHz DDR4 DUAL | SSD 980 256 GB SYS + SSD 2TB DCS | TM Warthog Stick + Throttle + TRP | Rift CV1
RagnarDa Posted October 16, 2018 Posted October 16, 2018 No that’s pretty much all there is to it :) The reference altitude is always set to 500m on take-off. Altitude info isn’t stored in the data cartridge but is available in the kneeboard. The indication also changes during landing-mode as well. DCS AJS37 HACKERMAN There will always be bugs. If everything is a priority nothing is.
TOViper Posted October 16, 2018 Author Posted October 16, 2018 ok, thanks guys for all your answers! can be closed. Visit https://www.viggen.training ...Viggen... what more can you ask for? my computer: AMD Ryzen 5600G 4.4 GHz | NVIDIA RTX 3080 10GB | 32 GB 3.2 GHz DDR4 DUAL | SSD 980 256 GB SYS + SSD 2TB DCS | TM Warthog Stick + Throttle + TRP | Rift CV1
Quip Posted October 16, 2018 Posted October 16, 2018 It's your go to instrument for precision, it's much more precise than the HUD. And it's you back up instrument if the HUD fails, or when you're in an ANF-mode, or the HUD is in the sun. Very very useful.
TOViper Posted October 16, 2018 Author Posted October 16, 2018 It's your go to instrument for precision, it's much more precise than the HUD. And it's you back up instrument if the HUD fails, or when you're in an ANF-mode, or the HUD is in the sun. Very very useful. Indeed! Visit https://www.viggen.training ...Viggen... what more can you ask for? my computer: AMD Ryzen 5600G 4.4 GHz | NVIDIA RTX 3080 10GB | 32 GB 3.2 GHz DDR4 DUAL | SSD 980 256 GB SYS + SSD 2TB DCS | TM Warthog Stick + Throttle + TRP | Rift CV1
Hoffster Posted October 16, 2018 Posted October 16, 2018 I wonder if the hud is used at all for say airshow flights with the 37, as for that kind of non mission flying it has no real value as i see it.
TOViper Posted October 16, 2018 Author Posted October 16, 2018 I wonder if the hud is used at all for say airshow flights with the 37, as for that kind of non mission flying it has no real value as i see it. #metoo Visit https://www.viggen.training ...Viggen... what more can you ask for? my computer: AMD Ryzen 5600G 4.4 GHz | NVIDIA RTX 3080 10GB | 32 GB 3.2 GHz DDR4 DUAL | SSD 980 256 GB SYS + SSD 2TB DCS | TM Warthog Stick + Throttle + TRP | Rift CV1
Quip Posted October 17, 2018 Posted October 17, 2018 The HUD is super useful in "that kind of flying". The reference bars give you a clear non-numerical altitude in relation to the set "hard floor" The bars also align at 45 deg, so you can estimate that easily. Also, the fpm vanishes 5 degrees after the rest of the symbology, so it's useful for quite a while longer than you may first think. But more importantly: you don't fly airshows using the HUD in the first place :D
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