On 01/02/2009 05:33 PM, Bohnert Paul wrote: > http://scenemodels.flightgear.org/modeledit.php?id=39 vordme_1 > http://scenemodels.flightgear.org/modeledit.php?id=615 vordme_2
1) Thanks for the points. 2) For folks without "edit" passwords, the following is more useful: http://scenemodels.flightgear.org/modelbrowser.php?shared=12 > vordme_1 is the default VOR/DME model for FlightGear. I don't know > it's history. That can serve as a model for "tiny" VOR shacks, but those seem to be rare in the US, although FHU VOR is tiny; see below > I modeled vordme_2. It is modeled after VOR/DME OSH. Located at KOSH > airport. Very nice. > I used photographs to estimate it's dimensions. These days you can google the critical dimension i.e. diameter. Tiny: FHU http://www.google.com/maps?f=q&ie=UTF8&ll=31.589978,-110.345204&spn=0.003646,0.004635&t=h&z=18 Medium: SFO http://maps.google.com/maps?ll=37.61953,-122.374024&spn=0.000848,0.001159&t=h&z=20 Large: GEP http://www.google.com/maps?ll=45.145694,-93.373194&spn=0.012077,0.018539&t=h&z=16 COL http://www.google.com/maps?q=+39.8156++-74.4316 Huge: JFK http://www.google.com/maps?ll=40.632867,-73.771576&spn=0.001624,0.002317&t=h&z=17 Monstrous OKB http://maps.google.com/maps?f=q&hl=en&ie=UTF8&ll=42.221311,-87.951474&spn=0.001232,0.002843&t=h&z=19 My conclusions bases on what I see are: FHU Tiny -1 model OK SFO Medium -2 model OK GEP Large should switch to larger version of -2 model COL Large ditto JFK Huge could switch to much larger version of -2 model although for now I'd be happy to lump it in with the merely "large" VORs OKB Monstrous maybe a project for another day > vordme_2 is positioned at VOR/DME OSH and VOR/DME SFO. SFO is the > one at KSFO airport. It is not the correct model for SFO. It looks OK to me. It looks nice, and it's pretty much the right size. What's not to like? > If someone > can provide pictures and dimensions for SFO I will model it for > FlightGear. IMHO the most reward per unit effort would be a) start by making a scaled-up version of the -2 model, scaled up to about 17 meter diameter b) in parallel with that, somebody could add the code to choose the VOR model based on range as tabulated in nav.dat As before, for the US at least the proposal is: if actual size data, ...... use actual data else if range >= 100 ...... 17 m shack large (scaled up -2) else if range >= 35 ...... 12 m shack medium (-2) else ...... 5 m shack tiny (-1) ------------------------------------------------------------------------------ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
