Quote:
Originally Posted by FS~Phat
Noticed a few other have commented on this also and DT has not yet offered a comment on my post several pages ago and the more recent posts by people??
I can fly level with about 12% down elevator trim in 4.09m but require about 32% with 4.10m. This does indeed effect the flight model and response of the aircraft when trimmed for level flight.
Can DT please advise if this was intentional and by design or if it's a potential bug?
cheers
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Well, I'm no fan of the Spit and so I rarely fly it. However, I am curious about bug reports and this one is easy to test (if you still have a 4.09 version available, like I do).
I tested the 4.09 Spit 25lb vs the same plane in 4.10. It only takes 15 minutes for a simple test like this and you don't need an engineering degree either.
The man has a point. The two planes are totally different. Not only does the 4.10 Spit need a lot more down trim (I will roughly estimate about 2 1/2 times more), but the engine torque is much stronger on the 4.10 Spit...to the point it almost seems unflyable to me.
If you try and counteract the 4.10 torque (for level flight) with rudder or rudder trim, you need so much there's no way you can fly a straight heading. You will constantly loop to your left. In 4.09, a few clicks of the rudder trim left and the plane will fly straight and level.
Now, I have no idea which flight model is 'correct', but there's no way these two Spit FM's were the same. Not even close. (Also, to be fair, I only tested this one Spit model.)
However, has DT officially stated that the 4.09 and 4.10 Spit FM's are the same? (If not, there's not much anyone can do, is there?)
I'm just glad I'm not a Spit fan.
**EDIT - In the 4.10 Readme: 'Revised flight models for all Spitfires.'
Well, that says it all. The only reason I made this post was because I felt sorry for the people who I thought were being ignored by DT. I thought the issue was whether or not the Spit FM's were changed in 4.10.
Since the FM changes are documented in the Readme, I have no more comment. I'm not an expert on FM's so I don't get caught up in those kind of topics.
Aviar