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If tire pressure is 25 psi then, determine minimum dynamic hydroplaning speed.(a) 45 knots(b) 25 psi(c) 369 knot(d) 25 knotsThis question was posed to me in an interview for internship.My enquiry is from Landing Gear topic in portion Landing Gear and Subsystems of Aircraft Design

Answer»

Correct choice is (a) 45 knots

The explanation is: Given, tire PRESSURE P = 25 psi

Minimum DYNAMIC hydroplaning speed V can be estimated by using,

V = 9*p^0.5 = 9*25^0.5 = 9*5 = 45 knots.



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