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How to use DC3 RMI?

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in VHF mode.I can use the default DC3 RMI in ADF mode -- but there seems to be something wrong in VHF mode when used in conjunction with either a VOR or ILS locator.For example, sitting on the Brisbane International runway 1 (ILS bearing 16 degrees) , I have to alter the knob thingy at the top of the RMI for the card to indicate 26 degrees to be able to get the RMI needle to point straight ahead. is this some kind of problem with the gauge -- or am I just not using it correctly?Thanks Barry

The VOR indicator in the DC-3 is slaved to the outer ring, so all bearings are relative to North (whether magnetic or true I don't know). To get the true bearing to reflect your current course you simply rotate the ring so that the heading indicator matches your current heading, then read off relative bearing to/from the VOR station. The ADF is NOT slaved to the outer ring and represents a true bearing direct to the reporting station at all times.I find it easier to navigate using ADF, but I also have FSNavigator, which makes navigating a breeze! I never seem to use the GPS in the DC-3. Hope this helpsAllcott

Use the GPS?! USE THE GPS? Splutter splutter ... cough choke ... don't know what the world is coming to .... ahem, not like it was in my day, Mildred ... blah blah blah.LOL. Good explanation, Allcott. Hey Bazza, someone dropped you a big hint the other day: a man of your FSintelligence should be flying for DC-3 Airways! Get over there, mate, and join the big boys! We have a blast and you'll find a wealth of knowledge about every variant of the DC-3, its instrumentation and its flight characteristics.Our hangar is at www.dc3airways.com. Leave your GPS at home!Mark "Dark Moment" Beaumonthttp://www.swiremariners.com/newlogo.jpg

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Mark "Dark Moment" Beaumont

VP Fleet, DC-3 Airways

Team Member, MAAM-SIM

  • Author

Yes -- I am intending to join your merry band -- but I am about to go away in 2 weeks time on a 5 week campervan trip to Tasmania -- so will put it off until after then . I have downloaded the required pre-requisite flights - those that need to be flown before joining up for online flying -- but in attempting the very first one, I got stuck on how to use the RMI in VHF mode. I was assuming that it would work as per a "conventional" RMI -- but it didn't/doesn't and I got so involved in trying to figure it out whilst oncourse to Provincetown , that I came in to land too high and too fast. The relatives of the deceased passengers have been advised. :(Barry

  • Author

>The VOR indicator in the DC-3 is slaved to the outer ring, so>all bearings are relative to North (whether magnetic or true I>don't know). To get the true bearing to reflect your current>course you simply rotate the ring so that the heading>indicator matches your current heading, then read off relative>bearing to/from the VOR station. >The ADF is NOT slaved to the outer ring and represents a true>bearing direct to the reporting station at all times.>I find it easier to navigate using ADF, but I also have>FSNavigator, which makes navigating a breeze! I never seem to>use the GPS in the DC-3. Hi AllcottSomething seems rather strange with this default DC3 RMI. If you sit on a runway with ILS -- tune it in and turn the outer ring around until it reads the same as your compass/gyro heading , the RMI needle "should" point straight ahead pointing towards the ILS locator. BUT, I am finding that it doesn't! Have a try and see -- try Brisbane International runway 1 (16 degrees) .. but it is also the same for other airports.Regards Barry

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