Gains on air refueling is the same as TO/ L ?

Always wondered why the F-16 has a tailhook, or how big a bigmouth F-16's mouth really is ? Find it out here !
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saberrider

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Unread post12 Jun 2017, 08:05

Because airspeed are lower than in cruise gain , to meet tanker speed , AR door open position ,TE Flap's down with Alt. flap to drop the nose at an lower AoA number , it is gain of F16 as in TO/L mode ? What's the speeds for AR (min-max)?
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MVSGas

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Unread post12 Jun 2017, 08:21

Cruise Gains
The FLCS is in cruise gains with the LG handle in UP, the ALT FLAPS switch either in NORM or in EXTEND above 400 knots, and the AIR REFUEL switch either in CLOSE or in OPEN above 400 knots. At low AOA, the pitch axis of the FLCS is a g command system. As AOA increases, the FLCS switches to a blended g and AOA system to provide a warning of high AOA/low airspeed. Roll rate limiting is available and maximum roll rate decreases as a function of low airspeed, high AOA, and horizontal tail position.
Takeoff and Landing Gains
The FLCS is in takeoff and landing gains with the LG handle in DN, the ALT FLAPS switch in EXTEND (below 400
knots), or the AIR REFUEL switch in OPEN (below 400 knots). In takeoff and landing gains, the FLCS pitch axis
operates as a pitch rate command system until 10 degrees AOA and a blended pitch rate and AOA command system
above 10 degrees AOA. Roll rate limiting is available but is a fixed value independent of AOA, airspeed, or horizontal tail
position.
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saberrider

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Unread post12 Jun 2017, 08:36

MVSGas wrote:Cruise Gains
The FLCS is in cruise gains with the LG handle in UP, the ALT FLAPS switch either in NORM or in EXTEND above 400 knots, and the AIR REFUEL switch either in CLOSE or in OPEN above 400 knots. At low AOA, the pitch axis of the FLCS is a g command system. As AOA increases, the FLCS switches to a blended g and AOA system to provide a warning of high AOA/low airspeed. Roll rate limiting is available and maximum roll rate decreases as a function of low airspeed, high AOA, and horizontal tail position.
Takeoff and Landing Gains
The FLCS is in takeoff and landing gains with the LG handle in DN, the ALT FLAPS switch in EXTEND (below 400
knots), or the AIR REFUEL switch in OPEN (below 400 knots). In takeoff and landing gains, the FLCS pitch axis
operates as a pitch rate command system until 10 degrees AOA and a blended pitch rate and AOA command system
above 10 degrees AOA. Roll rate limiting is available but is a fixed value independent of AOA, airspeed, or horizontal tail
position.
From what I understand if you drop the landing gear little below
400kts is not a problem ,but I read somewhere in forum , the limit for landing gear is @300kts and flaps retraction is at 370 max.It is possible to cruise with AR open (trapped fuel is not a problem) ?
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MVSGas

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Unread post12 Jun 2017, 08:59

Hold up, lol, we are talking about flight control gains correct?
So, lets not loose track by talking about landing gear and speed limits. So in terms of the in flight refueling door open and close and how it affects gains, which is what I thought you talk about on your original post:
Cruise Gains=AIR REFUEL switch either in CLOSE or in OPEN above 400 knots.


Takeoff and Landing Gains=the AIR REFUEL switch in OPEN (below 400 knots)
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saberrider

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Unread post12 Jun 2017, 09:21

Thank you for clearly stated otherwise I'll diverge from subject .
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MVSGas

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Unread post12 Jun 2017, 09:31

Now, you ask about speed limits; look for GR1F-16C-1 easily found online, Figure 5-6 page 5-15

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