General Category > Unofficial F/A-18 Acceleration Pack board
Autopilot and Radio explainations
brettt777:
--- Quote from: virtuali on June 21, 2008, 01:54:09 am ---The TACAN function for the Acceleration F/A-18 is not a complete simulation of the Tacan system, that (when used on a military airplane) allows for radial informations. The Tacan system we have is just a convenience that will allow to tune "by channel" instead of "by frequency", but the underlining system is still the standard FSX so, it assumes all airplanes use a civilian receiver so, TACAN works as DME only, without radials.
--- End quote ---
That would explain why I would get Tacan distance on the HUD but no radial info...
brettt777:
This thing has quite the avionics package. Now if we only had target tracking info on the HUD...
brettt777:
--- Quote from: Gunfighterj on August 18, 2008, 04:39:41 pm ---First Can any1 tell me what TACAN is? And second is there a way that u can set up an intercept course on another flying aircraft?
--- End quote ---
TACAN is an acronym for TACtical Air NAVigation. I was familiar with it back in my Nav Air days but that was 20 years ago. If I remember right (guys, help me out here, it's been a long time so feel free to correct me if I'm talking out my back side), it is primarily a military thing. I don't think you'd see one in a GA or commercial plane but I could be wrong about that. What it is is a transmitter/receiver in the aircraft and a transmitter/receiver at the ground station. Again if I remember correctly the ground station transmits various pulses in a certain pattern (I don't have the time or the room to draw a picture of how it does it...it is a bit complicated if memory serves) and depending on what direction the aircraft is from the radiated pattern and compared to a reference burst it receives it and displays it, usualy on an HSI. Unlike VOR where the HSI displays intercept info to a certain radial, TACAN shows direct heading to the station. Like I said there is a transmitter in the aircraft that is used for getting DME info from the station also. The system I worked with also had a way to connect with another aircraft and you could get slant range to that aircraft. I don't recall if you could get bearing info as well. Unfortunately in the Accel Pack FA-18, as virtuali said, the only TACAN function we have is the DME. I hope I didn't confuse you too much. It has been a long time. As for the second question, someone else has to answer that one...
dancd:
This thread will help me considerably in respect of the subject heading. Could you add one further line please to indicate how I fire up the HUD. Many thanks
Tregarth:
I am sorry to be stupid but I cannot make the F-18 radios tune to the ILS on Radio 1 and VOR on Radio 2.
I thought the sequence was
1. Click on the right button below M so it changes to 2
2. Click the TCN button (it shows as VOR page)
3. Enter VOR Frequency 11495 ENTER
But nothing seems to appear on the DDI.
Where am I going wrong, please
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