quote:

How can NP be a fulcrum than?

FC,

It is a tall order to try and sum up the principles of stability and control in a BBS post.

I will try and make this easier to understand. You have a high degree of knowledge about the science of flight and I have no doubt you can get this down too.

By definition, a Center of Gravity generates no force but is just the point that the average weight vectors are equal. We use the law of the lever to shift our CG to a design point.

The CG generates no other force but weight.

Lift is an aerodynamic force. Like a center of gravity, the point our aerodynamic forces moment is constant is our Aerodynamic Center. We use the term AC in a wing, control surface, or subcomponent.

The term Neutral Point refers to the aerodynamic center of the entire craft.

The Neutral point is center of our aerodynamic forces. The aerodynamic forces of lift cannot oppose weight unless the moments between the CG and NP are neutralized. We do this through trim and control inputs.

We use the law of the lever to set the relationship of the NP to the CG. How we set the relationship of the CG and NP determines the stability and control of our craft.

We can go into how that relationship affects our aircraft in other postings.

All the best,

Crumpp

quote:

what about "mid-wing aircraft"?

Mid-wing aircraft can go either way depending on how the designer sets them up.


All the best,

Crumpp

quote:

Just re-sent it as new a topic - you should get a notification now...

I got it and will reply. Nice picture, thanks for sharing it!

All the best,

Crumpp

quote:

The Neutral point is center of our aerodynamic forces. The aerodynamic forces of lift cannot oppose weight unless the moments between the CG and NP are neutralized. We do this through trim and control inputs.

Do you understand this now, FC?

It all came down to the money after the dip sh_ts realized they had a monster performer. The 38 with an average pilot wasn't reliable on high altitude tracks as you all know. As for the 47, I can fly and support two 51D's for the price of one 47. Late in 44 our pilots knowledge curve had such a high rate of confidence that the 51D was a lock. Political maneuvering cost this aircraft six months of service and many bomber airman's lives. And last but not least, it's a beautiful aircraft.

I'm just reading a book about strafing sorties the allied force undertook at the later stages in the war (ETO front) and I noticed how many USAAF pilots flying P-51's lost their lives during strafing runs. That is one of the very few roles P-51 isn't capable of... unfortunately at one point in the war these types of sorties were common.
P-47 and P-38 were both more suited to such tasks.

But in reality... well burlingame nailed it to the bone.

quote:

Originally posted by BillSwagger:

quote:

Originally posted by Buzzsaw-:

quote:

Originally posted by Xiolablu3:
Also the Metal ailerons fitted from late 1940 on increased the roll rate on the MkII onwards.

Compared to the Mark 1, the Mark V with clipped wing had a much better roll rate.

but it couldnt approach the FW190.

Actually the clipped wing Spitfire had the best performance of any aircraft at speeds under 220 mph, better than even the 190A.

There is a good deal of mythology about the 190's rollrate, no question it was extremely fast at low and medium speeds, but its performance dropped off considerably at higher speeds.

The P-51 had better roll performance at speeds over 350 mph, and the P-47 overtook the 190 at speeds over 400 mph.

This was likely a function of the fabric ailerons on the 190.

Pages 166-167 of this report:

http://aerade.cranfield.ac.uk/.../naca-report-868.pdf

Of course, in the game, this is not the case, just another of the issues related to roll performance, the worst being the lack of inertia.

I've been crying about this ever since i first dove away from a 190 in a 47, and barreled away at the bottom end of my dive, and he was able to stick with me. =(.....@400+ IAS

There is old P-47 Oleg's fault from FB 4.04 version. Before P-47 had better roll rate at high speeds then actually. I could say that these is very easy to correct/ fix in FM data of these plane. I really dont know why Oleg didnt fix it where he could easy do it.

These is really fustrating when You make high speed pass in P-47 and your roll rate is as poor as a Zero plane.

I could say that maby P-47 roll rate at high speed will be corrected in future versions of Ultr@Pack Mod as a new slot planes with fixed FM and perfromance.

Very soon new Ultr@Pack 1.8 would have added new slots for Spitfres MK1, MK VB, MK IX early, MK XII, Tempest 11 and 13 lbs , 109 series and of course Fw 190 A series with correted acceleration, speed, turn and climb rate ( without lowering weight of these planes)

If i would hurry there will be aslo corrected P-51D ( no wings broken at high speed roll, more stability ) and Fw 190 D-9 ( corrected speeds)

So i will recomend search info for new Ultr@Pack Addon V 1.8 for Il2 1946 You will find there old bugs fixed in FM of Western Front planes.

Could you provide the ESN so I can check it out as well? Thanks

quote:

If i would hurry there will be aslo corrected P-51D ( no wings broken at high speed roll, more stability )

AAA has already done a marvelous job on the P51D-30-NA. Great stability, more stall warning and APIT ammo.

Do ZUTI and AAA work together?

UI 1.2 includes the Zuti MDF.

quote:

Originally posted by HayateAce:

quote:

If i would hurry there will be aslo corrected P-51D ( no wings broken at high speed roll, more stability )

AAA has already done a marvelous job on the P51D-30-NA. Great stability, more stall warning and APIT ammo.

Do ZUTI and AAA work together?

Dont think so ZUTI are with Ultr@Pack and in 1.8 Ultr@Pack version ( very soon avaliable) will be the newest version of his Moving Dogfight Server MOD with possiblity of refuling and rearming at AF.

For more info serach by google : Ultr@Pack

and find Ultr@Pack site.


There are also info about new slot for Western Front planes with IL2 Compare diagrams showing new performance - look FM/DM Disccussion section at Ultr@Pack site.


Moreover new Ultr@Pack version would have great improvment like very fast loading time ( near like original game) and many others great things.


S!