G'day,

I wish I knew what happened but I have no idea. Suddenly I am taking off and as usual settle into a climb but wait as soon as I let go of the stick the plane start to dive. What daaa.. ??

So it needs a whole lot of trim to bring ht nose up after take off. It happens now to all aircaft and I can't seem to figure out why. 

Gear is T16000 Hotas.

Anyone?

Thanks

13 minutes ago, Bandyka said:

G'day,

I wish I knew what happened but I have no idea. Suddenly I am taking off and as usual settle into a climb but wait as soon as I let go of the stick the plane start to dive. What daaa.. ??

So it needs a whole lot of trim to bring ht nose up after take off. It happens now to all aircaft and I can't seem to figure out why. 

Gear is T16000 Hotas.

Anyone?

Thanks

Try adjusting weight & balance & CG from the weight toolbar..

Edited July 11, 20214 yr by kt069

2 minutes ago, kt069 said:

Try adjusting weight & balance & CG from the weight toolbar..

Thanks will look into that but why would that change on it's own??

2 minutes ago, Bandyka said:

Thanks will look into that but why would that change on it's own??

By default they are not adjusted well (or adjusted to empty aircraft). Check and see.

Edited July 11, 20214 yr by kt069

6 minutes ago, kt069 said:

By default they are not adjusted well (or adjusted to empty aircraft). Check and see.

Will do however I defintiely did not go near it and it's been fine since day one.

4 minutes ago, Bandyka said:

Will do however I defintiely did not go near it and it's been fine since day one.

Few things changed during one of the earlier sim updates.

4 minutes ago, kt069 said:

Few things changed during one of the earlier sim updates.

I think it went nuts after the latest update yes. Will check and report back shortly thanks.

The more recent updates did tend to make a lot of aeroplanes have a very forward CoG; it's usually not a bad idea to throw a bit of nose-up trim on most of them and have it assigned to a couple of buttons; I have it on the forefinger buttons of the throttle, as this is usually a bit more quick to get to than my trim wheel on the Saitek panel I also use.

This is actually completely the opposite to what I do on gliders in real life. I normally trim slightly nose-down for the take off because on aerotows, the last thing you want is to have the thing lift off and start climbing so the tow-rope fouls the rudder of the tow plane whilst that is still gaining flying speed. And should you get a somewhat vicious take-up of the tow rope on a winch launch, where the controls get snatched out of your hand, you can be sure the aeroplane won't pitch-up and stall.

I've seen a few people have that happen, one of which crashed down pretty hard off a vicious pitch up on a winch launch. Fortunately the aeroplane came down on a lot of big fluffy clumps of newly-mown grass whilst still at very low speed and reasonably level, which prevented it from taking any damage. The pilot was so shaken up, that we had to calm him down a lot, but I made a point of getting him to make another flight again shortly afterward (and trim it nose down a bit to use that precaution I favour on gliders), so that the experience did not turn into a bogey man for him. Kind of 'get back on the horse' if you will. He was fine on his next go, so it was a good lesson learned on that occasion and no harm done.

Edited July 11, 20214 yr by Chock

Yes I am like that too. However what I am referring to is literally hard nose down deep dive on take off.

Are you sure there isn't some control clash or spurious signal putting massive amounts of nose trim in? This will be easy to test, just change the trim nose up/down keyboard assignments to something like changing the altimeter pressure setting wheel and see if you get any spurious altimeter settings. Sometimes iffy USB connections can send such signals; I had a dodgy USB set of headphones which was doing that to MSFS. Sometimes moving the USB plugs for various peripherals around can alleviate that kind of thing too.

3 hours ago, Bandyka said:

G'day,

I wish I knew what happened but I have no idea. Suddenly I am taking off and as usual settle into a climb but wait as soon as I let go of the stick the plane start to dive. What daaa.. ??

So it needs a whole lot of trim to bring ht nose up after take off. It happens now to all aircaft and I can't seem to figure out why. 

Gear is T16000 Hotas.

Anyone?

Thanks

You have one of your controls inadvertently keyed to trim causing the excessive nose down (downward trim or elevator input) 

16 minutes ago, Tierborn said:

You have one of your controls inadvertently keyed to trim causing the excessive nose down (downward trim or elevator input) 

nope, I chekced it.

34 minutes ago, Chock said:

Are you sure there isn't some control clash or spurious signal putting massive amounts of nose trim in? This will be easy to test, just change the trim nose up/down keyboard assignments to something like changing the altimeter pressure setting wheel and see if you get any spurious altimeter settings. Sometimes iffy USB connections can send such signals; I had a dodgy USB set of headphones which was doing that to MSFS. Sometimes moving the USB plugs for various peripherals around can alleviate that kind of thing too.

If that was the case it would keep pushing it back down after I readjusted it to level but once I get it level it stays there.

1 minute ago, Bandyka said:

If that was the case it would keep pushing it back down after I readjusted it to level but once I get it level it stays there.

Probably but not necessarily; a spurious signal could potentially be affected by the situation in the sim, in that it could clash with code which is being processed when the thing is on the ground, but then not clash when it is in the air. I know this is unlikely, but it's not inconceivable.

2 minutes ago, Chock said:

Probably but not necessarily; a spurious signal could potentially be affected by the situation in the sim, in that it could clash with code which is being processed when the thing is on the ground, but then not clash when it is in the air. I know this is unlikely, but it's not inconceivable.

hmm OK, I have theory I'll check shortly.