C4203 "Fam 11"
Smoke or Fume Elimination - If fuel fumes are present in the cockpit:
CAUTION - Prior to accomplishing any procedure that will create a draft in the cockpit, determine the source of smoke. A sudden draft may cause a smoldering fire to burst into flame.
WARNING - Do not activate the flaps or the landing gear electrically with fuel fumes present in the cockpit; electrical arcing may cause an explosion.
Aborting/landing on wet runway - Hydroplaning causes the airplane’s tires to skim atop a thin layer of water on a runway. If there is standing water in excess of 0.1 inches, hydroplaning may occur. Deeper tread or “channels” that allow water to escape while the tire contacts the runway may require as much as 2 inches of water before hydroplaning occurs. The speed for normal dynamic hydroplaning can be found using the following formula: (Vhydroplane = 9 * sq. root of tire pressure)
Weight as no effect on the velocity that an airplane will hydroplane, but a heavier airplane must takeoff and land at higher speeds which increases the possibility of hydroplaning. If you suspect hydroplaning, you must avoid the use of frictional brakes, since their use may cause you to lose directional control. Beta settings should be used as much as possible to slow or stop.
T-34C Hydroplaning speeds: NOSEWHEEL MAIN LANDING GEAR Pressure Vhydroplane Pressure Vhydroplane 70 psi 75 kts 90 psi 85 kts
VFR wide or straight-in approaches
This type of approach may be used at both military and civilian airfields when use of the “break” (or “overhead at civil fields) would be precluded or impractical due to weather, traffic, or local procedures. They may also be used in conjunction with certain emergencies (i.e., inflight damage).
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