Stall speed for IAR-80

[Huck]

Hi guys,

Can somebody help me with this little (but very important:)) piece of information: I need stall speed for IAR-80 in clean configuration at loaded weight (or at any weight if specified). I'm trying to calculate CLmax for IAR-80 in order to clarify flight data for the upcoming presence of IAR-80 in Il2 FB. That's because I feel the data available to the developer is wrong: 22 seconds for 360 deg turn seems way too much (considering aircraft's power and wing loading).


PS Victor thanks again for your efforts, very nice forum upgrade.

[Victor]

Minimum speed (kph)
IAR-80: 200
IAR-80A: 205
IAR-80B: 205
IAR-80C: 205
IAR-81: 215
IAR-81A: 215
IAR-81C: 210

[Huck]

Thanks Victor, I'm sorry I could not reply earlier.

Unfortunately the numbers you found are most probably approach speeds. IAR80 stall speed should be much lower, somewhere around 140kmh (flaps up, gear up), but I need confirmation from an original document. Even P-47C&earlyD stalled at 185kmh (same config), 200kmh for IAR80 is much too high.

Maybe you have the numbers in another source?
Thanks again, Victor.

[Dénes]

In metric units, speed is measured in km/h, or - for the Americans - kmph, not kmh, which is a nonsense.

I've seen this pseudo-unit used in several US publications, including my own book published by Squadron/Signal, as I could not persuade the Texan editor that kmh is wrong...

Dénes

[Huck]

Hi Denes,

I don't know if I understand you correctly.
All the speeds I gave are in Km/h, I wrote kmh in hurry.
As for P-47C stall speed is 115mph in clean config (flaps up, gear up) at loaded weight, which is aprox 185 km/h.