Turn rate and radius questions

[dtango]

Thanks gripen.  I'll check that article out.

Tango, XO
412th FS Braunco Mustangs

[F4UDOA]

Zigrat,

Why are accerated stall numbers consistantly higher the clmax would seemingly allow?

IE the F4U 12,000lns 3G stall at 164MPH. I can provide other simialr examples as well.

[joeblogs]

http://www.hitechcreations.com/forums/showthread.php?s=&threadid=87239

[HoHun]

Hi Dtango,

>If the airspeeds are IAS then V-n diagrams for the different alts would overlap each other on accelerated stall limits.  3g stall speed is the same IAS at alt x as it is at alt y.

Did we already correct for compressibility error in the IAS reading? If not, maybe this is the factor spreading out the stall speeds at different altitudes.

Regards,

Henning (HoHun)

[dtango]

Yeah, that's a good question.  I don't know if they corrected for it or not.  I'm guessing not since the chart says "IAS".  Just referring to my EAS correction chart though at 200 kts CAS between 10K is roughly -1 kt and at 20K it is roughly -3 kts so it doesn't make up the 10 kt difference between 10K-20K.  However I haven't tried applying the mach number correction mentioned by gripen on Clmax to see what the results would be on the curves.

Tango, XO
412th FS Braunco Mustangs