View Full Version : Question Help! Models for FMS defies gravity!!!
Zeroaltitude
Jun 30, 2004, 07:22 PM
Hi guys!
I need some help please.
Iīve recently got FMS running, with an interface-cable to my TX that a buddy has made.
So far so well, and the five or six models that were allready in the simulator works just fine. However, I got a bunch of other models, which I then "imported", and they work a bit TOO fine, in that they seem to defie gravity!?!
So, I thought to myself: "hey there myself..., must be something wrong with them there models dontyathink?", and who was I to argue with that?;)
Off on the internet I went in search of other models to download and import to FMS, and that went splendid too, except these models also have lighter than air behaviour, in fact I canīt keep them inside the landscape nomatter how hard I try.
Iīm very much NOT good with computers, so any advice/help would be greatly apprecciated.
Anders O
steve lewin
Jul 01, 2004, 03:32 AM
There are many hundreds of different models for FMS. None of the 50 or 60 I'm using do anything like that so perhaps you could say which models you're trying and particularly where you got them from. Also which version of FMS you're using.
By "lighter than air" do you mean they won't stay on the runway but start flying on their own and refuse to land again ? Or what ?
Steve
Zeroaltitude
Jul 01, 2004, 11:36 AM
Hi Steve!
Yeah, maybe I need to be a bit clearer. As soon as I apply throttle the planes start to fly, but there appears to be zero-gravity or even negative gravity, and I am unable to control them (keep them down) even with the elevator, in short they are unflyable although they DO react to controlinput. My take on it is that somehow when I import them into FMS a bit of the "programming" that regulates how they should behave gets lost. This is a "malfunction" of some sort, definitely not something to do with individual models behaviour.
The version of FMS I use is "FMS 2.0 Alpha 8.2", whatever that meens. The five (or so) models that "were already in" my FMS when I installed it from the CD functions. On the CD I also got a folder with zipped folders for other planes. When I open these folders and import the content into FMS they appear under the "models" that are available, and they function except for the zero-gravity thing. I tried to download a Mig-3 from the internet, and that does exactly the same.
Thanks for any help!
Anders O
steve lewin
Jul 01, 2004, 12:31 PM
It was time I tried the new version anyway ;). I can get something similar when using a couple of the old 2.07 (Alpha7) models with the new software version Alpha 8.2. The planes work o.k. for a while but at some point you lose control and they go up and up and blink out of existence. However most of them are fine. So far I've only seen that happen with 2 of the 10 or so old models I've tried (a "B-25m" and a "sub-with camel"). Also these definitely fly around for a while and only then go mad. You were saying that you have no control immediately ofter take off so perhaps it's not the same thing.
I can't see anything they have in common so for the moment I suggest you use only Alpha 8 models with the sim. Anyone else had problems with V7 models in V8.2 ?
Steve
Zeroaltitude
Jul 01, 2004, 12:43 PM
Thanks!!! I will give that a try. Any particular place you would recomend for downloading Alpha 8 models for FMS? The place I went to download didnīt specify what version they were for, so itīs definitely possible that it is related to the version.
Anders O
canadagoose
Jul 01, 2004, 06:31 PM
I have some here;
http://www.tjlewis1.rchomepage.com/html/fms.html
Wufnu
Jul 01, 2004, 09:10 PM
That happens when you fly version 7 models in version 8.2, I've noticed. They say you can fly version 7 models in 8.2, but you can't. Version 8 planes work fine in 8.2
Eric Brouwer
Jul 02, 2004, 05:56 AM
I have also tested Alpha 8.2, and found that with a lot of the Version 7 models, they fly well, up to a point and then just goes up and up and up.
To overcome this problem, go to Simulation, Thermal Options, and reduce the "Updraft" and "Bubbles" levels. It might take several tries until you get it to "feel" right. This method worked for all my version 7 models.
Zeroaltitude
Jul 02, 2004, 12:40 PM
Thanks guys!
Anders O
Zeroaltitude
Jul 02, 2004, 04:54 PM
By the way Canadagoose, the three v8 models I downloaded from your link works perfectly! Thanks!!!:D
Now, can anyone give me more links to free downloadable v8 models for FMS.
I am also going to try the "thermal options". Thanks for the tip! I had them set on "high" and "many" to fly the glider that was provided with my FMS at one time, but am uncertain if I had them like that when I tried the v7 models.
Anders O
canadagoose
Jul 02, 2004, 08:03 PM
By the way Canadagoose, the three v8 models I downloaded from your link works perfectly! Thanks!!!:D
Is that with the new FMS 8.2? I havn't even tried them on it. I didn't realize there was a new one out until a couple days ago. I've downloaded it but havn't put it on my computer yet.
I'm glad you had good results with them.
Zeroaltitude
Jul 02, 2004, 08:32 PM
Yup, FMS 8.2, at least so it says. Iīve now tried the v7 models I got with the CD, as well as a few downloaded v7 models, and the trick with the thermal options did the trick!
I must say, thereīs a LOT of difference between how realistic different models behave. Even the same plane, done by different people have absolutely NOTHING in common. But then again, different models of the same subject have different characteristics in real life too, so Iīm not complaining.
I do think that there is a lack of realism in a lot of the models though. Iīve yet to find one that snap-rolls realistically, or snaps at all. That is too bad, because if one could realistically simulate a provoked snap-stall then this would be a GREAT trainingdevice even for intermediate pilots. As it is now, even the fastest jets behave like a basic trainer, except for the speed. But it is a LOT of fun though! :D
So far my favourite is the F104 Starfighter, I just wish that Alfa Models would make an EDF with the same forgiving characteristics and speed as the FMS version I have, that would be an instant hit (with me at least!). ;)
Anders O
Eric Brouwer
Jul 04, 2004, 02:31 AM
Extract from Roman in the FMS Forum. (http://cgi.ethz.ch/~mmoeller/cgi-bin/ikonboard3/ikonboard.cgi?s=40e7a0e318c8ffff;act=ST;f=12;t=258 )
"Hello,
yes you are right. I did have a look at that and realised that the thermal speed points dowards instead of upwards. So I changed that for the next release.
Roman "
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