I see Crumpp's posting the phugoids and spirals on the Spitfire again (35th time?). So I'll just repeat what NACA leading WW2 aerodynamics test engineer - all fighter aircraft of the era which were tested displayed instability in the phugoid and spiral mode. Put the R.A.E. chart from the Hurricane testing next to the Spitfires and you'll appreciate the Spitfires stability in these modes.
And Crumpp, before you post it a perceived 36th time, can you please remove your wrong labels? A plane going into stall in the first cycle is not stable.
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09-25-2012, 07:06 AM
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