Razor18 Posted June 10 Posted June 10 Hay Badger, I think in Mission 1, after separating Lion flight for DME ARC approach, ATC instructions are false when saying "join inbound 253 radial". Inbound radial 253 is on the opposite side of MESA 073 indbound radial, bringing any aircraft towards Akrotiri (inbound) on the 253 radial. In fact ATC should say join inbound 073 radial, as stated in the briefing for MESA approach anyway. Great campaign though !
Sandman Simulations Posted June 10 Posted June 10 (edited) 1 hour ago, Razor18 said: Hay Badger, I think in Mission 1, after separating Lion flight for DME ARC approach, ATC instructions are false when saying "join inbound 253 radial". Inbound radial 253 is on the opposite side of MESA 073 indbound radial, bringing any aircraft towards Akrotiri (inbound) on the 253 radial. In fact ATC should say join inbound 073 radial, as stated in the briefing for MESA approach anyway. Great campaign though ! Hi, Thank you for your message. Actually, VOR/TACAN radial is always the magnetic heading away from the station and is not dependent on heading you are flying. You can fly the radial towards the station (inbound) or away from the station (outbound). You may fly any heading but radial is still the magnetic heading from the station. If you are flying inbound radial 253, you need to fly magnetic heading 073, wind corrected of course (magnetic track). In this arrival chart fix MEZUS is located on AKR radial 253 48,3 nm DME distance. ATC instructions for DME arc arrival are given with radial and command to fly inbound or outbound. Heading to fly is only used by ATC when under radar control and then wind correction is also made by ATC. Hope you landed safely Edited June 10 by Sandman Simulations
Razor18 Posted June 12 Author Posted June 12 If you look at a VOR instrument, it shows whether you are TO or FROM the VOR (here TACAN), regarding your actual position. So R073 TO means, at your position if you look to heading 073, you will look towards the VOR/TACAN station. Now if you change the radial to 253 on the VOR instrument, it will show FROM, meaning if you at this very same position look (and fly) towards heading 253 now, the station will be exactly behind you. So I think "inbound on the 253 radial" is rather "inbound on the 073 radial", because that is the heading you have to keep to fly towards/inbound the VOR. (And if you overfly the VOR/TACAN, then you will be outbound on the 073 radial, because your heading will be always 073, no matter if before or after you overfly the TACAN)
Sandman Simulations Posted June 12 Posted June 12 33 minutes ago, Razor18 said: If you look at a VOR instrument, it shows whether you are TO or FROM the VOR (here TACAN), regarding your actual position. So R073 TO means, at your position if you look to heading 073, you will look towards the VOR/TACAN station. Now if you change the radial to 253 on the VOR instrument, it will show FROM, meaning if you at this very same position look (and fly) towards heading 253 now, the station will be exactly behind you. So I think "inbound on the 253 radial" is rather "inbound on the 073 radial", because that is the heading you have to keep to fly towards/inbound the VOR. (And if you overfly the VOR/TACAN, then you will be outbound on the 073 radial, because your heading will be always 073, no matter if before or after you overfly the TACAN) Hi, You are absolutely right about headings to fly. It still doesn't change the fact that VOR/TACAN radial is independent from aircrafts heading. If you fly radial inbound radial 253 with your TO flag on you need to fly heading 073 (if there is no wind) but you are still on radial 253 not 073. If you then overfly the station you'll be flying outbound radial 073 with FROM flag. If you turn 180 degrees you'll fly inbound radial 073 even if your heading is 253. That is just because of the definition of radial which is bearing from the station. The Bearing from the station doesn't change with the heading aircraft is flying. Here is one video explaining that maybe better than I do 1
Recommended Posts