F-14B Tomcat: Wing Sweep Control Tutorial | DCS WORLD

[@SMVB-cl6oc]

Gives me hope me might see the MIG 23. variable wing sweep is hard to model as it changes so many aspects of the flight model even shifting the center of gravity of the aircraft.

[@dankmeme682]

We'll get there. Question is just when.

[@colbybryan7761]

Appreciate this so much! I could not figure out for the life of me why the wings wouldn't go into oversweep after I landed.

[@Nanne118]

Note that there are effectively two flaps types on the F-14: manoeuvring flaps and auxiliary flaps. The AUX Flaps are the inner portions of the flaps and are set via the flap handle only, extending when the flap lever is set to more than 5 degrees: the AUX Flaps can only be full up or full down. The Manoeuvring flaps can be controlled by the DLC system (rotary wheel on the stick) and can be set to any desired position: their current position is indicated on the wheels-flaps position indicator in the pilot cockpit. The MANOEUVRE flaps also automatically deploy at lower speeds to compensate for the change in lift (and retract at higher speeds). All the flaps should automatically retract when sweeping the wings (and will become unavailable): the AUX flaps are disabled beyond 21 degrees of wing sweep, whilst the MANOEVER flaps are disabled beyond 50 degrees of wing sweep. The BOMB wing sweep mode sets the wings to a fixed 55 degrees as you explained and thus prevents all flaps from (automatically) deploying: the BOMB mode is thus super handy when doing air-to-air refuelling, to prevent the MANOEUVRE flaps from automatically deploying and messing up your approach to the tanker.

[@christophermcbride1133]

Thanks for that explanation. The maneuver flap need to be bound to a button then? I could not move the thumb wheel on the stick with the mouse.

[@grimreapers]

Thanks, just reading about this as we speak. Such a dang weird plane.

[@Nanne118]

@@christophermcbride1133 yes, it is a HOTAS bind called DLC. There should both be an axis bind for it, as well as push bindings that let you map it to your keyboard / HAT switch / button of choice - I have it on my TM: Warthog DMS up / down HAT.

[@christophermcbride1133]

@@Nanne118 Thank you.

[@UraNiUmXXpLoSiVez]

Im so grateful you preformed these tests

[@danvercillo]

Gushing, love it. Time to jump back in!

[@Power5]

This helps. I am usually just smashing buttons and stuff until they do what I want them to do on the deck. Now i know how to actually do it.

[@grimreapers]

lols

[@navy_f14s_tomcatmotion24]

Thank you. Finally you could explain me how this works.

[@rickyalexander459]

Wow thanks a million this is exactly what I was looking for.

[@ramberto7785]

you guys are killin it with these TOMCAT how to vids please keep em coming!

[@trucktrucker5043]

Cap this is a nice and helpfull video explaing how to use the wing sweep.Maybe you could make a video,explaining the logic behind wing sweeping.I mean to explain what is the usefullness of various wing angles.

[@SPFLDAngler]

Pretty much common sense why it’s useful swept back or forward… forward to keep flying at lower speeds, and/or pull more AoA. Also more stability, for bombing and such as a side note. Fully back to gain more maneuverability and more speed, and to prevent wing ripping at higher speeds. That’s really all it is. No need for a dedicated video as to why variable-sweeping wings are great.

[@johnnymeza5454]

Thank you, I'm learning this aircraft one problem I encounter at a time lol.

[@johnnymeza5454]

Quick update, I found out when I would launch from a carrier with after burner on, it would actually break my flaps so they would get stuck in the down position. That would prevent my wings from sweeping. Now I just launch without afterburner, raise my flaps, then kick in the afterburner and my wings sweep just fine.

[@PurrJoy-y3c]

I had the same problem i was so sick of it i just didnt use flaps for takeoff untill this comment, bro you saved me 🤣😅@@johnnymeza5454

[@azisimanwidagdo6020]

Wait....... i'm new at this channel and i thought this is a real plane

[@Maverickf22flyer]

...hmm I think that was the problem for my AUTO not working anymore! So, yellow lever full forward, then brought down (right click), then reset and re-select the AUTO from the key assignment and it should work. In reference to my earlier post, I haven't ever pressed the RESET button, but I'll check right now to see if that does the trick.

[@johnstark8116]

Awesome explanation, thanks

[@belgeode]

CADC... not CDAC, but otherwise spot on. Only other thing I would mention, is that on the boat it is always the last thing you do (unsweep the wings), due to space constraints. But you were on an empty deck, so you can get away with it.

[@grimreapers]

lols thx Bel!

[@heavyinfantry1692]

Cheers cap!

[@EagleLeader1]

This is the one thing I don't get no matter how many times I watch this video & try to sweep my wings back. Looked at my controls, messed around with flaps etc. I'm trying to do it after I land.

[@KLRGT500KR]

Please do aother acceleration run with wings at 68 degrees starting out at 300 knots. It should have the lowest drag as the wings out are for slow speed maneuverability (but, have high drag).

[@grimreapers]

wilco. Let me finish tut vids first

[@neytria6182]

I can't seem to make the wings be autofold after I have used the emergency wing sweep

[@-_Nuke_-]

Another awesome tutorial, thanks cap

[@ikonane]

6:06 Where can I see when that happens?

[@wabbit234]

I work out to clips of Joe Rogan talking about animals getting hit by trains

[@grimreapers]

lol roger

[@twobellz]

How are you adjusting the wing sweep? Heartblur defaulted the controls to Warthog HOTAS MIC switch but they don’t work...

[@yamabushi170]

The 'down' position of the mic switch should put you in manual mode, at which point you should be able to sweep the wings.

[@yoschiunboxing6289]

perfect video thank you!! Iam having trouble with this - after landing on the carrier i cant "oversweep" the wings because the flaps are not retracted fully, they are in an "automatic" mode and a little bit out, iam not able to fully retract the flaps manually - is this a bug or what iam doing wrong?

[@usmctien]

What DCS did not show is how and when do the "glove box" winglets deploy during auto wing sweep whist in ACM.

[@Brimmlinn]

Glove vanes were disabled early on and mostly removed as they were shown to be largely ineffective as they did not help very much in the transonic range they were designed for. The were only on the original A models and the model that Heatblur has modeled is a B. I do think the glove vanes were a pretty neat idea though. :)

[@EdgemanLL2]

Glove Vane. And they were disabled (and the vanes basically screwed in place) because they were found to be basically useless. So it wasn't worth the weight penalty to keep the entire system on board.

[@rustyshackleford2841]

It helps a lot. Thank You.

[@cutlass6332]

Thanks Cap, very informative. At the very end you said you put the throttle to auto, can you explain that also please.

[@grimreapers]

Press the WING SWEEP AUTO button on ur HOTAS to put it into Auto mode

[@GeorgeTsiros]

sooo planning on making a full cockpit replica yet? 😁 I guess with VR it's kinda pointless, but the tactile feedback would be sweet!

[@johnnyhouligan9879]

Το κατάφερες Γιώργο? How did it go??

[@GeorgeTsiros]

@@johnnyhouligan9879 it was a question :/ but i am planning on starting a project like that sometime. Just for experimenting

[@johnnyhouligan9879]

@@GeorgeTsiros best of luck with it, must be a very satisfying project! Εύγε!

[@GeorgeTsiros]

​ @Johnny Houligan if you wanna talk about it, send me a pm or something. Since it will be for VR only, it doesn't _need_ to be pretty (or even usable) _outside_ VR, so it can be completely unlabeled. Buttons, dials, switches, etc, all stuck on flat pieces of thin MDF. Multiplex them all through an arduino, route it all to the PC via serial. The only thing that makes it a bit more complicated is if you want toggle switches (for example) to be able to change state on their own, so you need to stick servos on each control of that kind (so that the board can reset itself to a specific state from outside, instead of having to move all controls to the specific position by yourself)

[@johnnyhouligan9879]

@@GeorgeTsiros YT has pms?😂 I might not be the best source of information on things programming and arduino but I know folks who could 👍🏻 what platforms are you on? Let's talk 🤙🏻

[@Mako-sz4qr]

Hey Cap , can you make a video on the new wing sweep update as of 6-22-2022 Im alittle confused of how that works now. I’m old and dumb.

[@WhereNerdyisCool]

I’m stumped. I can’t get my wings out of bombing mode. PS landing with 55 degree sweep is bad for tires.

[@mikelastname6469]

Great video as always! Thank you for the excellent tutorial. How are you doing, by the way? Feeling better?

[@grimreapers]

Yes I am slowly getting better, thanks!

[@navy_f14s_tomcatmotion24]

Can you make a tutorial about the hud in the f14?

[@grimreapers]

wilco

[@DESIBOY-fe7nm]

Why wings don't break when turning forward? I mean there will be tremendous amount of force no?

[@grimreapers]

I guess the stresses would have been calculated by designers

[@aliajjj9553]

thanks

[@Maverickf22flyer]

Hi again Grim Reapers and thank you for this video. I've been doing the in-game tutorial about it, but maybe I've forgotten something or not, cause after I put the wing sweep lever down (with right click on it) it should normally go to AUTO mode, but sometimes it works to have my wings sweep automatically, sometimes it doesn't do anything giving similar conditions, so I suppose there is some bug also which makes the AUTO mode do nothing sometimes and you're forced to manually control the sweep. I'll try using the AUTO mode with a key assignment as you did and probably like that I'll have it always automatically handle my sweep. Now, on the other hand, sorry, but I've heard you saying that you're afraid not to "stall" the plane by putting the wings at a higher sweep at that "X" speed! Well, the stall is nothing else than an airflow reversal and separation across the lower pressure portion of the wing (be it upper or lower, depends on AoA, positive or negative) which usually reduces your lift to about 45-50% of the maximum possible and that ONLY happens if for whatever reason the AoA goes above X value and it has absolutely nothing to do with speed, never ever, just AoA! Sorry sir, but due to my respect towards you I considered it's not worth letting you misunderstand the stall as many people out there actually do. Cheers!

[@eddievhfan1984]

As far as stalling, that's pretty much just a consequence of angling the wings back and reducing the effective span of the wing. At lower speeds, a fully swept wing would require higher AoA in order to maintain level flight, and as you saw in the video, when Cap manually swept the wings back, his center of lift changed, and the aircraft nosed down. If this occurred in especially slow/high-AoA flight like TO/LDG/dogfighting, you could quite easily trigger a stall unintentionally. On a related note, this also explains the purpose behind BOMB mode wing sweep, which is really just a preset in MANUAL mode. Jet aircraft of this era were designed to perform high-speed glide-bombing runs, more or less, so using the F-14 for ground attack, the pilot would be running in at high speed compared to something like an A-10. By keeping the aircraft in a manual sweep mode, any small changes in speed wouldn't result in a sweep change that would alter your trim forces and could throw off your aim. The 55° may have been chosen either as the most efficient wing sweep for the intended bombing speeds, and/or it also resulted in minimal longitudinal trim change after weapons come off the racks.

[@Maverickf22flyer]

@@eddievhfan1984 Thanks you for taking the time to explain details (the way you see it) about sweep configs for bombing runs, but..., with all due respect, learn some more about what a stall actually is. The stall, in it's correct and unambiguous definition, is nothing more than a flow separation (with the consequent flow reversals) on the low pressure area of a body (any 3D shape) that has the consequence of reducing the pressure differences between one side and another of the body/shape, also reducing the lift generated on it. That is the 100% complete definition of the stall. It has nothing to do with airspeed, altitude, wing sweep, flaps/slats & other mechanical inputs, orientation relative to Earth (attitude angles), the Moon, the Sun or other celestial bodies. The one and ONLY thing that affects this undesirable type of flow which is generically named "stall" is..., the angle of attack (AoA)! Nothing more, nothing less. Only the angle of attack, has a positive and negative limit beyond which the airflow becomes "stalled". That, I'm pretty sure you've heard of many times and is called the "stall angle of attack". Indeed, this stall angle of attack is always affected and can change a lot with airspeed (IAS, TAS), Mach number, slats/flaps, boundary layer controls, other surfaces and mechanical deflections and even engines thrust (which more or less affects the airflow ahead and behind the aircraft), but the stall... is only related to this angle. Do not mix things wrong!

[@eddievhfan1984]

@@Maverickf22flyer I am aware of all this. (I took two semesters of aerospace engineering in college and continue to do extracurricular reading on it) If I mention speed in connection with stalling, that is merely to indicate that in unaccelerated 1g flight, stalling AoA and dynamic pressure/indicated airspeed are inversely correlated. The unintentional stall I mentioned would be a result of a pilot overcorrecting after selecting a full aft wing sweep at lower velocities, which would both reduce available lift due to the decrease in effective wing span AND change the center of lift on the aircraft's wing and body (the F-14 provides a significant amount of fuselage lift), which would result in a nose-down force. So if the pilot did not expect this, they may give aft stick, and if they were in a low-speed attack run rather than the high speed nominally required of this flight profile, they may cause a stall accidentally. That's all. OTOH, it has also been mentioned elsewhere that a 55° sweep also disables the maneuvering flaps on the wings, which may have a greater influence on smoothness of control in ground attack than minimizing trim changes, though the latter may still play a part in that.

[@Maverickf22flyer]

@@eddievhfan1984 Look man, don't get me wrong, I don't want to sound ridiculous or too far fetched, but even after your second attempt to define the stall, you failed! Sorry...! First of..., to understand how things work correctly, it can only take 5 minutes or simply an eternity if you have trouble connecting the things correctly in your mind! I'll try to correct some of the things you've said here and there, before we can move on: 1. "unaccelerated 1g flight"! If you want to refer to a perfectly horizontal flight and the G is along the vertical axis and it's positive, then say it! It's usually very important to mention it completely. Anyone can take that as very intuitive and easy to understand what you're referring to, but it's very important to say the stuff complete/correct and not leave any chance for abiguity! At least, that's how I do when I talk, I take things very seriously, which is very good! You can have a 1G flight no matter the attitude angles and therefore you have an accelerated flight (turn, dive). 2."The unintentional stall I mentioned would be a result of a pilot overcorrecting after selecting a full aft wing sweep at lower velocities, which would both reduce available lift due to the decrease in effective wing span". Overcorrecting..., what you're trying to say is... over-passing the critical AoA. You can "overcorrect" by passing beyond the critical AoA at ANY speed, not low, medium, high or whatever you name it! Why don't you use the right words for what you're trying to mean? Those right words are...: angle of attack! For you, again, a stall occurs when your effective wing span is lower? Where have you learned that?. 3."AND change the center of lift on the aircraft's wing and body (the F-14 provides a significant amount of fuselage lift), which would result in a nose-down force.". Continuing, you talk about the aft (although you didn't normally mention the direction, let's consider it obvious) shift of the neutral point (hope you know well what that is) on the aircraft's wings, but then you also mention the fuselage and the fact that it also generates lift...! Man..., if you're talking about one thing, then finish the detail about that things before moving to the next one. By what you wrote you only seem to want to prove that you've heard/learned some incomplete details about various stuff and try to make a soup out of them and mix them incoherently! You will only make yourself look worse than as someone who knows what he's talking about. I'm telling all of this as a friend...! The fuselage's neutral point isn't going in the same direction as on the wing (because you've said "wing and body")! And the stall..., which indeed first occurs on the wings, won't care for whatever goes on with the fuselage, as the wings airflow alone is the one mostly responsible for any yaw and roll departures that may occur. About what you're saying related to the dive bombing wing setting, yes..., that sweep angle has been chosen as a best compromise for that purpose, but I only felt the need to correct you and talk about the "stall" effect..., not bombing techniques!

[@eddievhfan1984]

@@Maverickf22flyer Your passion is enviable, though I'm not so convinced the way you channel it does it justice. I know about laminar vs. turbulent flow, the flow separation from the wing that occurs in a stalled airflow, neutral point, coefficient of momentum, aerodynamic center, the rest of it. I just elected not to go THAT deep into elementary aerodynamics. There are more polite ways to correct or flex than going full throttle like that.

[@HoLyzPiNoyZ]

been waiting for this!! ty. Any plans on making Jester menu guide next? what each action in the jester menu does (in detailed like if u tell jester to scan low.. the scan altitude will be 10kft to 5kft ) the manual sucks... doesnt tell shit about how to operate with jester

[@grimreapers]

Yes plan on Jester, but TBH I am also struggling with him.

[@maxpower7466]

Can you try to do a maximum turn rate swiping manually the wings??? Will it be better for the test ? I mean swiping the wing will increase max turn rate??

[@grimreapers]

ya will do soon

[@MRBIG-lg9zl]

Where is the automatic/ Manual switch in the cockpit. I know the keyboard command but where is the clickable switch? thanks

[@sillygoose4460]

Its a yellow lever standing right next to the throttle on the right

[@jeans1515]

what the hell would I do without ya cap?

[@grimreapers]

Have a minor miss-understanding of F-14B wing sweep? :)

[@marv15]

i am unable to get into manual mode, there is not even a button in the options

[@kacper8562]

That moment when you make a 7 min tutorial for 4 binds, a lever and a button...

[@stijnvandamme76]

grim reaper vid are incredibly stuffed with time fillers

[@Skyray]

For me, in auto mode the wing sweep absolutely not follow the indications of the CDAC.. I can go though mach 1 with the wings fully extend and i dont know why... if someone can help me..

[@Carlos27thFS]

How are you setting up your controllers so the wings don't unrealistically snap off under load?

[@grimreapers]

search "grim reapers F-14b setting joystick"

[@Carlos27thFS]

@@grimreapers wow, thanks for the quick response. Have a great day.

[@christophermcbride1133]

Thank you for the tutorial. One question: Is there a physical button in the cockpit for "Wing Sweep Mode" (Auto/Man)? or do you have to assign this to a button press?

[@grimreapers]

no. It's on the actual throttle/stick so u can;t press it in cockpit like that

[@christophermcbride1133]

@@grimreapers okay. Thank you sir.

[@tedjob21]

Yes, it's on the inboard throttle grip.

[@rongamblin2107]

Hi Sirs ! Thank you for everything you do. I've heard you mention from time to time aircraft manuals. Are there actual text books on all these modules ? Thanks All !

[@grimreapers]

Yes if you buy a module, go to your game directory and look in your Coremods or Mods folder and you'll get the manuals.

[@TheSerec]

So somehow I managed to get the wings into oversweep while in flight, the handle was then stuck in the full back position, hitting master reset or trying to manually pull the lever wouldn't work, it was fixed in position, had to bail out because I couldn't land on the carrier. Was that a bug or is there a way to get out of oversweep again?

[@ShogunOrta]

When you say you're pushing forward, what are you pushing on???????????????????????????????????????????????????

[@furla5757]

Why doesn't your mirror work like a mirror?

[@grimreapers]

turned it off.

[@craigharris41]

My Wingsweep just says auto, :(

[@davehaag8175]

Control setup video please...!!!

[@grimreapers]

sorry but I don;t know all of the cotnrols yet.

[@stijnvandamme76]

19 seconds "2 electrical system that drive 2 electric servos that sweep the wings back and forward." That is absolute nonsense. The F14 had a single hydromechanical screwjack actuator, per wing to drive the sweep. There's no backup for that, if it fails, it fails and the wings do not sweep The emergency system is just a backup method to send hydraulic pressure to those actuators... Eg different way to control the hydraulic valves. The normal valve system is electronically controlled, the second is not.

[@michaelderkacz5526]

Grim Reapers always seem to just improvise shit and say what makes sense to them. I guess this is no exception

[@droman608]

Was hoping to see a Picture in Picture view to see it. Unfortunately the oversweep is shown a few seconds. Well done though! 😎💯

[@EdgemanLL2]

00:36 CADC. Not CDAC.

[@EdgemanLL2]

01:14 CADC Not CDAC

[@EdgemanLL2]

01:33 CADC Not CDAC

[@EdgemanLL2]

02:55 CADC Not CDAC