Air brakes ?
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I should have let you answer buddy … I’ve never actually flew on F-16 (I would dream about it! ;)) but on MF1 , Jaguar , M2000 and Ajet it is the case … In Jaguar and MF1 vibrations was more noticeable. Really noticable on C-160 when opened more than 60° …
Nope you nailed it perfectly. (Young) Guys have actually left the speed brakes open for decent amounts of time in the Viper because you just don’t notice it. Hence the habit of constantly pushing forward on the SB switch on the throttle.
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(Young) Guys have actually left the speed brakes open for decent amounts of time in the Viper because you just don’t notice it.
Made the same mistake on Ajet (no stable “close” position on the throttle, just an unstable “open” and “close” with a central stable “neutral” postion, but … with a more visible light on the landing gear/flaps panel … ooops ;))
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Hence the habit of constantly pushing forward on the SB switch on the throttle.
Good to know it’s not just me but also the real pilots as well!
A few questions guys… when going AB and breaking the sound barrier…
1. Is there a “crack” sound when you break the sound barrier?
2. Is it true that the cockpit “goes quiet” afterwards?
3. Is the BMS implementation correct? IME, it doesn’t go as quiet as I expect it to be, if at all…Thanks!
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1 - No
2 & 3 - I do not know in an F-16. (?)Fox?
Edit: https://www.benchmarksims.org/forum/content.php?145-Pump-Up-the-Volume
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1 - No
2 & 3 - I do not know in an F-16. (?)Fox?
Edit: https://www.benchmarksims.org/forum/content.php?145-Pump-Up-the-Volume
You hear the wind rush increase as airspeed increases. But you never notice anything special about breaking the Mach. And after doing it once or twice, it just becomes another day of flying the Viper!
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Well, that wasn’t what I expected…. I thought if you’re flying faster than the speed of sound, you’re basically not hearing anything as you leave the soundwaves behind you…
Thanks for the answers guys!
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In the Viper there are no special cockpit sounds when supersonic, this is mostly due to the clean canopy. What you were hearing in <0.99 you keep hearing above m1. The opposite goes for canopies with front support frames (M2k, F-4), that the drag forces also increase the air flow sound.
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I wonder why GD have put SPD BRK indicator to F-16 such a hard to see position while F-18 have a noticeable light indicator at the eyebrow.
EDIT: Perhaps set SPD BRK to FWD is preferred to confirm it is closed, so the indicator is not required to be placed to somewhere more visible?
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…much, much earlier design approach. As with anything, things get learned as you go. Besides - in the real jet you can likely feel it if the boards are out…and you don’t have to look. We sim-ers don’t get that feedback.
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…much, much earlier design approach. As with anything, things get learned as you go. Besides - in the real jet you can likely feel it if the boards are out…and you don’t have to look. We sim-ers don’t get that feedback.
Please precise : on F-18. Otherwise some ppl will think again it is the same on F-16
You hear the wind rush increase as airspeed increases. But you never notice anything special about breaking the Mach.
There is actually a “bug” (or bad design) in BMS which makes the wind rush increase with the mach instead of the airspeed. I am trying to find a coder with free time to fix that … I suspect the original coder to misunderstood what has been said about it in the past.
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Well, that wasn’t what I expected…. I thought if you’re flying faster than the speed of sound, you’re basically not hearing anything as you leave the soundwaves behind you…
Most of what is heard inside the cockpit is the “aircond” throwing/blowing air and the airflow on the canopy at high speed. Also the motor sound (to a lesser extent) which is transmitted by the structure of the airframe. Those sounds are “inside cockpit” sounds and you won’t leave them behind whatever your speed.
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Nope you nailed it perfectly. (Young) Guys have actually left the speed brakes open for decent amounts of time in the Viper because you just don’t notice it. Hence the habit of constantly pushing forward on the SB switch on the throttle.
Happens from time to time in the sim too lol. I definitely have noticed the obsessive habit to ensure they’re closed too, I always am pushing forward on my switch to make sure they’re shut, can’t help it.
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Dee-Jay, you said the pilot can feel the airbrakes open at high speed or in thicker air… why is this? Turbulence? Vibrations?
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Dee-Jay, you said the pilot can feel the airbrakes open at high speed or in thicker air… why is this? Turbulence? Vibrations?
My best guess is at high speed there is enough deceleration (say decelerating from M1.5 to M0.9 with SB) that it will push you forward against the straps a little bit. And in thicker air simply because there is more drag and again a faster decel, probably enough to push you forward against the straps to where you can feel it and a sense of slowing down. But I would like to see what Dee-Jay and Fox3 have to say
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Next time you’re flying on an airliner take note of what you can feel as the pilot changes throttle settings (and flap/spoiler deployments, for that matter)…if you’re tuned in, it’s very noticeable.
But I also agree - I find myself constantly checking the speed brake switch -> in as I fly BMS.
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I raised the volume of the airbrake sound file and now I have no doubts about its position, and I think it is more realistic too.-
How can you do this?
Another thing you can do is use the S-A Bar [Shift] + [3] or maybe [Ctrl] + [3] which shows the speed brake %. I just wish the S-A Bar was a bit smaller.
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You can replace the brakwind.ogg by this one : http://8thdragons.free.fr/Perso%20DeeJay/Cartes%20FliteStart/NLY/brakwind%20update%20for%20BMS433.rar
(Do not forget to make a backup of the original file!)
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…much, much earlier design approach. As with anything, things get learned as you go. Besides - in the real jet you can likely feel it if the boards are out…and you don’t have to look. We sim-ers don’t get that feedback.
In the F-4 you could feel if the speedbrakes/boards were all the way out and you were going fast, but not at traffic pattern speeds. Same with the F-16.
Had a squadron mate leading a two ship to the range, they took 20 seconds spacing on takeoff due to the weather (less than 500 foot ceiling), flew 8 NM trail enroute to and on an IR route (a military training route that is flown with an IFR clearance from ATC, rather than VFR). At the end of the low level flown single ship at 480 knots simulating a nuclear mission, Lead called #2 to rejoin to see if Lead had a fuel leak because his fuel had become increasingly less than #2’s fuel. #2 rejoined, says there’s no fuel leak, and asks, “Hey is there a reason your gear is down?” I kid you NOT…Lead never raised his gear and never noticed a difference except for the fuel numbers. The gear doors were fine. One smart ass in our squadron penciled in a new line to our Ladies’ Aid (Inflight Guide) page of low level fuel flow numbers for 480 KGS, Gear Down, CL tank, 2 TERs. “Harsh, but fair!”
Back in the Jurassic era we referred to flying the F-16 as the “magic carpet ride.” The jet sounds and feels the same at pretty much every airspeed and configuration. However another bud had his left LEF fail to a 90 degree up (and then rip off the jet as he regained control) at 480 knots and 500 feet. He felt that…
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Hi guys! How can you tell if the airbrakes are open or closed in the F16 ? Beside looking in external view
Marc…
Marc, just to give an alternative-if you keyboard shift +3 you’ll get a little display in the bottom left of your monitor that tells you, among other things, if your airbrakes are open