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Whats the difference between fog, fog banks, and fog patches? PRFG (fog bank) is more extensive than BCFG (fog patches) Another way of looking at it is like cloud cover descriptors FG is like BKN or OVC: more than half the horizon is covered PRFG is SCT, and then BCFG is FEW All the above are used when the temperature is above freezing point and the fog reaches more than 2 metres above ground
What does FG BNK mean in a metar? - Aviation Stack Exchange It means fog bank from S to NW of the station, although it's not codified The remarks section (after RMK) does not always use official codes In this case, BNK neither appears in the FAA's 7900 5 , nor WMO publications
safety - How common are cancelled landing attempts? - Aviation Stack . . . One frustrating night a shallow fog bank forced 2 go-arounds for lack of visibility Yet flying above it we could clearly see the runway and all the lights And frankly we tested "landing environment in sight" to its limit when we finally landed $\endgroup$ –
From a safety standpoint, which is better: voice aural alerts or tone . . . This is only my personal experience from my initial-course CRJ simulator training, but I found that voice alerts tended to be more effective at distracting you or pulling you out of mental fog For example, with the Rockwell Collins Pro-line avionics suite, the tones and voice calls are distinctive to that system
aerodynamics - Why does condensation form on the wing especially during . . . $\begingroup$ There are two more reasons for why this happens mostly during take-off and landing: 1: You can most often see it just below the clouds, or close to the ground, in some places which also often have fog because that's where humidity is highest 2: The required lift during approach is not higher than in cruise, so the absolute
What is the mechanism by which condensation forms above wings? When humidity is high, the dew point is very close to the air temperature, which is why it's easier to get condensation when the humidity is high When the air temperature cools down to meet the dew point, fog forms The water vapor in the air is condensing, but without a surface to gather on, it condenses into small droplets that form fog
What is the difference between mist and fog? Visibility less than 1,000 metres we call 'fog' and obscurity with visibility greater than 1,000 metres we call 'mist' This is the same one given in FAA Aeronautical Information Manual (Page 7-1-62 in Dec 2015 Version) For visibility below 5 8 statute miles (~1000m), the term fog is used, while for values above that, mist is used
When do flights get cancelled due to fog? - Aviation Stack Exchange With special equipment on the ground and in the plane plus specially trained crews, this can be improved to Category II at 100 1200, Category IIIA at 50 700, or Category IIIB at 50 300 "Fog" is defined as a cloud at ground level, though, so these requirements still wouldn't be met
aircraft performance - How can I compute the minimum possible bank . . . For typical aircraft operations, the bank angle and the velocity are controlled by the pilot, the turn radius is the result For passenger aircraft a maximum bank angle of 25 or 30 degrees is often used In other cases the radius of the turn is given (see fix radius turn) and the bank angle is the result $\endgroup$ –
ils - What are the differences between Cat I, Cat II, and Cat III as . . . A hazard to the airplane is interpreted to mean a bank angle resulting in any part of the wing, high lift device, or engine nacelle touching the ground 6 3 2 Speed Control Performance Airspeed must be controllable to within + - five knots of the approach speed*, except for momentary gusts, up to the point where the throttles are retarded to