A-4F Skyhawk operations manual: Difference between revisions

Jump to navigation Jump to search
m
added translation, links and chart
No edit summary
m (added translation, links and chart)
Line 1: Line 1:
{{main article|Douglas A4 Skyhawk}}
{{main article|Douglas A4 Skyhawk}}


By Andy Ross
By Andy Ross (2006)


== Fundamentals ==
== Fundamentals ==
Line 21: Line 21:
The A-4's ailerons are tremendously effective. At 350 knots, the real aircraft has been measured to roll at 400° per second, which is matched rather closely by FlightGear. This can be loads of fun, but it also makes "rolling into" a tight turn rather touchy. Be prepared to use some reverse aileron to halt your roll at your desired bank angle or else you may well overshoot.
The A-4's ailerons are tremendously effective. At 350 knots, the real aircraft has been measured to roll at 400° per second, which is matched rather closely by FlightGear. This can be loads of fun, but it also makes "rolling into" a tight turn rather touchy. Be prepared to use some reverse aileron to halt your roll at your desired bank angle or else you may well overshoot.


While the A-4 is an attack jet, and therefore much zippier than a 747 or Cessna 172, its thrust to weight ratio is not in the "why bother with wings" class such as modern fighters like the Su-27 or Rafale. You cannot simply point the Skyhawk's nose to the sky and expect it to climb, nor can you escape from piloting errors simply by applying throttle. It is a pilot's aircraft, and needs to be flown within its capabilities.
While the A-4 is an attack jet, and therefore much zippier than a [[Boeing 747|747]] or [[Cessna 172P]], its thrust to weight ratio is not in the "why bother with wings" class such as modern fighters like the Su-27 or Rafale. You cannot simply point the Skyhawk's nose to the sky and expect it to climb, nor can you escape from piloting errors simply by applying throttle. It is a pilot's aircraft, and needs to be flown within its capabilities.




Line 42: Line 42:
There are two angle of attack indicators in the cockpit. The first is a rotary dial at the top of your panel, which indicates angle of attack in "units". These are not degrees, but simply arbitrary numbers specific to an aircraft model. There is a small tick mark at the 3 o'clock position that indicates the ideal approach AoA. Final approaches under all conditions should be flown at this AoA.
There are two angle of attack indicators in the cockpit. The first is a rotary dial at the top of your panel, which indicates angle of attack in "units". These are not degrees, but simply arbitrary numbers specific to an aircraft model. There is a small tick mark at the 3 o'clock position that indicates the ideal approach AoA. Final approaches under all conditions should be flown at this AoA.


To aid in comprehension during approach, there is also an AoA "indexer" at eye level attached to the windscreen. This is a 3-element lighted display which displays five conditions: on speed (yellow center circle), slightly slow (yellow circle and downward-pointing arrow indicating "push the nose down"), slightly fast (yellow circle and up chevron indicating "pitch up"), very slow (no circle, green downward chevron meaning "pitch down and speed up!"), and very fast (no circle, red upward chevron meaning "pitch up and slow down!").
To aid in comprehension during approach, there is also an AoA "indexer" at eye level attached to the windscreen. This is a 3-element lighted display which displays five conditions:  
* on speed ''(yellow center circle)''
* slightly slow ''(yellow circle and downward-pointing arrow indicating "push the nose down")''
* slightly fast ''(yellow circle and up chevron indicating "pitch up")''
* very slow ''(no circle, green downward chevron meaning "pitch down and speed up!")'' and
* very fast ''(no circle, red upward chevron meaning "pitch up and slow down!")''


== Takeoff ==
== Takeoff ==
Line 56: Line 61:


=== Approach and Pattern ===
=== Approach and Pattern ===
 
[https://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Airport_Traffic_Pattern_with_Upwind_Leg.svg/2000px-Airport_Traffic_Pattern_with_Upwind_Leg.svg.png Here(Wikipedia) ] you find a flight chart
# Plan on arriving over the airfield at 1000-2000 feet AGL and 350 knots. At cruise speeds, the A-4 is a very slippery aircraft and takes a long time to slow down, so be prepared.
# Plan on arriving over the airfield at 1000-2000 feet AGL and 350 knots. At cruise speeds, the A-4 is a very slippery aircraft and takes a long time to slow down, so be prepared.
# Overfly the desired runway while descending to 1000 feet AGL. Note the runway heading on your gyrocompass. The A-4 has poor rearward visibility; you will not be able to see the runway for reference during significant portions of the landing pattern, and knowing you are on the correct heading is important.
# Overfly the desired runway while descending to 1000 feet AGL. Note the runway heading on your gyrocompass. The A-4 has poor rearward visibility; you will not be able to see the runway for reference during significant portions of the landing pattern, and knowing you are on the correct heading is important.
Line 95: Line 100:
Alternatively, if you have a long runway, leave the nose wheel in the air and slowly apply back stick until it settles down on its own at 80-100 knots before braking. This minimizes use of the brakes by allowing aerodynamic drag to slow the aircraft as much as possible, and works well also. I don't know what standard Navy procedure was for the landing rollout.
Alternatively, if you have a long runway, leave the nose wheel in the air and slowly apply back stick until it settles down on its own at 80-100 knots before braking. This minimizes use of the brakes by allowing aerodynamic drag to slow the aircraft as much as possible, and works well also. I don't know what standard Navy procedure was for the landing rollout.


{{main article|Douglas A4 Skyhawk}}
[[Category:Military aircraft]]
[[Category:Military aircraft]]
[[de:A-4F Skyhawk Bedienhandbuch]]
454

edits

Navigation menu