On another thread, http://forum.avsim.net/topic/444488-need-cheering-up-los-angeles-did-the-trick/?p=3012008#entry3012008, a poster called MFD86 suggested that my problems with OOMS and GA flying over ORBX England might be prevented by disabling any ORBX airfields in my scenery list.

 

I'd set up FSX the way I'd wanted it after 6 months of purchases and tweaks, it upset me to find my new A2A Cherokee hitting OOMS or OOM warnings just flying 30 mins from one ORBX field to another. So I've been testing with the FSUIPC VAS monitor and I thought I'd share my results. Free VAS goes up and down I found, and there are certain things which were very strange!

 

For the test I deactivated all my UK2000 Xtreme airports and all ORBX airfields. I kept only ORBX Southampton and UK2000 Newcastle. The flight was confucted in Flight 1s BN-2 Islander with autopilot from One to the other, the full length of England. On settings: Dense autogen settings, full radius and terrain mesh, others at 75%. Traffic at 0 except airliners which I put at 80% for takeoff operations only.

 

On the apron Free VAS was GB 1.45, after takeoff it dropped to 0.7, dropping to 0.6 then after 10 mins 0.56, as it dropped to 0.498 I turned airliner traffic off using the menu. Free VAS rose to 0.87 and over the course of the flight dropped slowly to 0.84, I looked outside and took some screenshots halfway, which dropped VAS down to 0.736 it continued to drop slowly as I flew north. Dropping below 0.6, I decided to save using keyboard keys only. VAS rose suddenely up to 0.7 then to 0.8, it dropped slowly as Newcastle approached to around 0.79. Twenty miles out I saved again, free VAS rose agaon to 0.816. Then I reintroduced 80% airline traffic, VAS dropping to 0.738. VAS dropped slowly during approach, 0.741, 0.712 with touch down at 0.747. Engine off at 0.49, so I saved one last tome and watched a few airliners landing at taxing to the stands, finally stopping FSX at 0.64.

 

Summary: it works! Occasional saves seem to improve matters. Switching on airline traffic near the airport seemed to work to. That first save at the halfway point pushed Free VAS back up to beyond takeoff levels! On the whole, I'm happy I can fly anywhere in Orbx England without suffering the OOM. Just gotta disable all unwanted UK airports....

 

Thank you MDF86!

 

 

- Paul Elliott

Glad to see this worked for you Paul, it's been a godsend for me. The more ORBX products you have, the worse it gets if you leave it all activated when you're not using it!

 

It takes a couple of minutes to set the library up how you need it for each flight, but it takes less time (and it's a hell of a lot less frustrating) than recovering a flight after a CTD!

At Canberra in Australia I found that disabling ground polys on the airport was huge for avoiding OOMs.  I only have EGHI Southampton in England so, not sure if any of them have ground polys or not.  I did get an OOM flying up the Thames downtown but the city is so ugly I doubt I'll do it again.  LOL.  Southampton, however, is a stunner!