F-16C侧风着陆要点

LJQC

From 1F-16CJ-1～～划一下要点

CROSSWIND LANDING

The  recommended  technique  for  landing  in  a crosswind  is  to  use  a  wing  level  crab through touchdown.  At  touchdown,  the ARI switches out. Undesirable yaw transients may occur if roll control is  being  applied  at  this  time.（wing  level  crab就是在接地时机身保持水平，航迹保持不变的一种着陆方式，有别于De-Crab和Sideslip。ARI详见http://bbs.3gofly.com/bbs/thread-203341-1-1.html）


After touchdown, perform twopoint aerodynamic braking（这个在13AOA时的效果是最好的）using the rudder to maintain  aircraft track down the runway and flaperon to prevent wing  rise. In crosswinds, the aircraft may drift downwind due to side  loads imposed by the crosswinds or travel upwind due to insufficient directional control inputs/availability.

As the airspeed decreases, increasing amounts of rudder are required to maintain track. Maintain twopoint  aerodynamic  braking  until  approximately 100 knots or until roll or directional control becomes a problem. As the pitch attitude decreases,  the nose tends to align itself with the ground track.

Aft stick and fully opened speedbrakes reduce stopping distance. Apply brakes after nosewheel is on the runway;  however, if stopping distance is a factor,  refer  to SHORT FIELD LANDING, this section. With all LG on the runway, maintain  directional control with rudder, differential braking, and NWS if required.（Differential Braking可以使左右脚刹车力度不同，以达到小幅度修正方向的效果。按住SPD BRK Switch可以使减速板从43度开到60度）

During landing rollout, the main concerns are wing rise  (roll  control), weathervaning (directional control), and downwind drift.  Wing rise is controlled by flaperon into the crosswind. Excessive flaperon deflection degrades directional  control. Use rudder and differential braking to control ground  track, especially on wet or icy runways. Engage  NWS if required to maintain directional control and to prevent departure from the  runway. Excessive differential braking may result in a hot brake condition. High rudder pedal force may result in a yaw transient when NWS  is  engaged. NLG strut compression is required to engage NWS but sustained forward stick may result in  full horizontal tail deflection which decreases weight on the MLG and thus reduces wheel braking effectiveness. NWS engagement may be required with the drag chute deployed to control increased weathervaning tendencies. However, the nose  up pull of the drag chute may prevent early NWS engagement.

=SVAF=Frank

沙发抢到了

LJQC

=SVAF=Frank 发表于 2011-11-12 11:55
沙发抢到了

以后记得用wing level crab，不要用Sideslip了～～

gfohwww

辛苦了

Ragnarok

de-crab同样是 "接地时机身保持水平，航迹保持不变"
3种：

De-Crab

Crab

Sideslip

LJQC

Ragnarok 发表于 2011-11-12 13:56
de-crab同样是 "接地时机身保持水平，航迹保持不变"
3种：

De-crab在接地前航迹变了～～～

iceviper

LJQC 发表于 2011-11-12 00:09
De-crab在接地前航迹变了～～～

不过De-crab的时候如果向侧风方向滚转的话，还是能保证航迹，不过那样的话就只能用上风边主轮先接地了。16是不是不允许这样？

LJQC

iceviper 发表于 2011-11-12 22:55
不过De-crab的时候如果向侧风方向滚转的话，还是能保证航迹，不过那样的话就只能用上风边主轮先接地了。1 ...

没说不允许，不过在接地前做滚转动作会使一侧副翼收起导致升力减少，下降率增加～～也可能在接地时突然来个yaw transient～～动作过大还可能使水平尾翼擦地，总之不推荐

yuecy

辛苦了辛苦了