British FM killing the fun of the game for allied pilots.

[JtD]

....most were stable and met the requirements.

Which requirements were there for long period dynamic longitudinal stability?

[bongodriver]

Originally Posted by JtD

Which requirements were there for long period dynamic longitudinal stability?

And this is the million dollar question, even Crumpps NACA 'bible' states that long period stability was not looked in to much as it is of no particular consequence....so it seems the much maligned Spitfire failed 'slightly' in a characteristic of little to no significance, in summary it can be asumed they used a basic rule of stability is beter than instability in this regard so they gave the Spit an 'F' and Crumpp something to cling to.

[winny]

Originally Posted by JtD

Which requirements were there for long period dynamic longitudinal stability?

The requirements are set out in NACA Report No.755. By R. R. Gilruth

I posted a link to it a couple of pages back.

EDIT:http://aerade.cranfield.ac.uk/ara/19...report-755.pdf

[JtD]

Originally Posted by winny

The requirements are set out in NACA Report No.755. By R. R. Gilruth

There's nothing about long period dynamic longitudinal stability in there, hence my question.

[swift]

Would you mind to continue the stability discussion in this thread:

http://forum.1cpublishing.eu/showthr...=33245&page=94


so we could continue discussing the general performance of the spit in the recent patch that is speed, overheating and climb?

Some people are interested in these issues.

[NZtyphoon]

Originally Posted by swift

Would you mind to continue the stability discussion in this thread:

http://forum.1cpublishing.eu/showthr...=33245&page=94


so we could continue discussing the general performance of the spit in the recent patch that is speed, overheating and climb?

Some people are interested in these issues.

Too true, Crumpp can continue with his Spitfire elevator fetish on his own time - his bug tracker has gotten nowhere and he just wants to re-litigate this non-issue by hijacking this thread.

Has anyone got the engine data in the Spitfire I and Hurricane I Pilot's Notes?

[TomcatViP]

Originally Posted by NZtyphoon

Too true, Crumpp can continue with his Spitfire elevator fetish on his own time - his bug tracker has gotten nowhere and he just wants to re-litigate this non-issue by hijacking this thread.

Has anyone got the engine data in the Spitfire I and Hurricane I Pilot's Notes?

If you hdn't buried his point of view with your wall of text and insulting comments we might hve hd the opportunity to raise some interesting point. Do you know tht or are you tht much overdone?

[Crumpp]

Which requirements were there for long period dynamic longitudinal stability?

The requirements for long period oscillation in highly maneuverable aircraft is the slope of the velocity change should not exceed .04 difference.

Do you need me to calculate it or can you compare the slope of a line on your own?

Transport catagory aircraft have a less restrictive stability requirement which require a period of 55 seconds.

[28_Condor]

[loop]
red pilots complain about bad FMs in british planes

clod devs fix red FM planes

blue pilots complain about uber FMs in british planes

devs downgrade red FM planes

red pilots complain about bad FMs in british planes
[/loop]

[JtD]

Originally Posted by Crumpp

The requirements for long period oscillation in highly maneuverable aircraft is the slope of the velocity change should not exceed .04 difference.

Transport catagory aircraft have a less restrictive stability requirement which require a period of 55 seconds.

Maybe I wasn't clear enough, I was asking about the requirements that were there at the time.
Can you please name the source of the requirements you quoted?