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Forum: Private Flying

11th Sep 2017, 16:24

Replies: 12

new glider altitude record over 50,000'

Views: 2,739

Posted By Thud105

Don't blame ya Jim! I wonder what the TAS of 37kt...

Don't blame ya Jim! I wonder what the TAS of 37kt IAS is at 90,000ft? I would think Mach 1 is probably less than 100kt TAS at 90,000ft too, so you can see how the stall speed and critical mach number...

Forum: Private Flying

11th Sep 2017, 10:16

Replies: 12

new glider altitude record over 50,000'

Views: 2,739

Posted By Thud105

For most light aircraft the limiting speeds are...

For most light aircraft the limiting speeds are all indicated, because the limiting factor is dynamic pressure (Q to aerodynamacists). However, flutter isn’t. It’s a factor of TAS, and as TAS varies...

Forum: Private Flying

10th Sep 2017, 15:03

Replies: 12

new glider altitude record over 50,000'

Views: 2,739

Posted By Thud105

They don't "exceed VNE and stall simultaneously"...

They don't "exceed VNE and stall simultaneously" - the 'stall speed' in straight & level unaccelerated flight and VNE are both indicated speeds. At those sorts of altitudes the glider is in 'coffin...

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