Rudder pedals in mid air
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The F-16 is fly-by-wire. Pedal resistance should be easy to model. hmmm, is there force feedback in r/l f-16 pedals……
No force feedback … but set of springs or hydraulic stiffener …
Amraam who tried the RL simulator told me about a big resistance in the pedals.
I’m not pilot, but I don’t remember the pedal being excessively heavy to move to max. Granted, only done it on the ground while testing nose wheel steering.
When I say “very hard” I mean heavier than most of ppl here certainly imagine. (like the 25lbs for the FLCS)
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I’m sure you are right. The larger fin was needed for targeting pods.
No that I know of, just more equipment house on the base of the rudder.
No force feedback … but set of springs or hydraulic stiffener …
My memory is never been great, but I think the artificial feel cartridge for the rudder is this one
IIRC, it’s just a spring. The ones on top are for the brake. Many hours with my head down there looking for something a pilot drop.
Anayway, BMS got me spoiled and I can do a coordinated turn worth a dam in other sims.
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Thank you mvgas.
BTW, many ppl seems to confuse “artificial feel” (made for making the command stiffer which the speed increasing) and “force feed back” like we have on some joystick … Am I right?
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I think all model of the F-16 have the same size tail, the base of the vertical tail is different on blocks 25 and above.
Early blocks had a smaller triangular stabilator. Area was increased to what we now have.
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Thank you mvgas.
BTW, many ppl seems to confuse “artificial feel” (made for making the command stiffer which the speed increasing) and “force feed back” like we have on some joystick … Am I right?
I have never used a “force feed” back joy stick so not sure how it feels. On the F-16, IIRC, is like a spring, the more you extend, the harder or stronger it feels. So at max defection of the pedals the pressure is harder that when moving it just a bit. This only applies to the pedals since the joystick in the F-16 always feels about the same and to me it moves so little it is hard to discern any difference. I hope i explain that eloquently enough.
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Early blocks had a smaller triangular stabilator. Area was increased to what we now have.
Was the tail longer? I ask because the little I know all F-16 are about the same height, so the tail should not be taller. I know the Stabs or horizontal tail was bigger.
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http://www.codeonemagazine.com/article.html?item_id=23
The transition from Block 10 to Block 15 resulted in two hardpoints added to the inlet chin and designated as stations 5R and 5L. The nearly thirty percent larger horizontal tail is the most noticeable difference between Block 15 and previous F-16 versions. The larger tail offset the shift in center of gravity brought on by the weight of the sensors and structures of the two chin hardpoints. The larger tail also provides better stability and control authority, especially at higher angles of attack.
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That is referring to the Horizontal tail or the Stabs, not the vertical tail/ The rudder.
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block 40/42
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I have not been able to find the F-16A ( block 10 to 20) vertical tail area. It does appear the block 40 and above are about 1 1/2 inches taller but it does have a larger Landing gear. Regardless, AFAIK, rudder utilization in flight and its authority is the same.
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Thanks for the info and corrections Gas. I thought there was references to vertical fin changes.
I still would want to research the early blocks -1. I don’t think the older FLCS has AOS (angle of sideslip) sensors. It may of used internal sensors.
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Thanks for the info and corrections Gas. I thought there was references to vertical fin changes.
I still would want to research the early blocks -1. I don’t think the older FLCS has AOS (angle of sideslip) sensors. It may of used internal sensors.
We would have to find a close up look of the nose, you should see several unpainted circles, maybe the size of .50 euros coin. I thinks those where side slip sensors, Not sure. The gyros ( not the food, lol) of course also provides info on this.
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was it updated FLCS?
It would be interesting to see instructions for flying the BUFLCS. There is a Sideslip indicator in the pit. iirc I saw a GR# for it. I’m not sure how manuals are structured.
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The gyros ( not the food, lol) of course also provides info on this.
Not the gyros. The accelerometers. They would detect the angle lift vector the same way the ball in the tube does.
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was it updated FLCS?
.Not sure what do you mean.
You mentions that older versions might not have sideslip sensor. I was saying that AFAIK, those sensors are little unpainted circles on the site of the nose. So if we find pictures of old models of the F-16 with those circle, I think that tells of if they have slideslip sensors. I am probably way off. I am starting to forget a lot, Its been almost 3 years since a work on a F-16. -
F16a-1 source says the A/B does have AOS sensors.
and same vertical fin
VERTICAL TAIL Area …… 54.75 Sq Ft
Aspect Ratio … 1.294
Taper Ratio •…•…•.•. 0.437
Sweep (LE) … 47.5 0
Airfoil At Root. … 5.3%
Biconvex At Tip … 3.0%
Biconvex Rudder Area …•…•. 11.65 Sq -
No force feedback … but set of springs or hydraulic stiffener …
http://www.candyparty.com/ST/cockpit/rudder.jpg
Amraam who tried the RL simulator told me about a big resistance in the pedals.
When I say “very hard” I mean heavier than most of ppl here certainly imagine. (like the 25lbs for the FLCS)Guys Dee-Jay is correct. I have a real set of rudder pedals hooked up to BMS in my pit and I can tell you that you have to practically stand on them to move them. The toe brakes are really stiff too. But they are extremely precise and after getting used to them I wouldn’t have it any other way. BTW Dee-Jay, I have yet to use the piddle packs…
Link to pics of pedals being installed:http://www.viperpits.org/smf/index.php?topic=3560.900
Here they are sitting waiting to be bolted in. This was a good day.
Cheetah, it is true that you dont need them most of the time but you will find your own way once you get used to them. It was very hard for me to not use them after flying IL-2 where I used them all the time. I use them with guns when sawing up the back of a bomber.
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there does not appear be a lot of travel in the r/l pedals. ~2in. 50mm?
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Not much. Note that the pedals rotate on a center pivot so they dont have the forward and aft movement of traditional pedals. This was weird at first too. Takes getting used to but they dont move enough for it to make it uncomfortable.