F-16 Launch Procedure - Crew Chief Pulls Out EPU (Hydrazine) Safety Pin
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- เผยแพร่เมื่อ 2 ก.พ. 2022
- F-16 Fighting Falcon aircraft crew chief performs pre-flight checks.
Crew chief perform checks of before takeoff engine's intake and exhaust, hydraulic system pressure and emergency power unit, etc.
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Film Credits: U.S. Air National Guard video
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For everyone asking about the last pin not being pulled, the pin is the Chaff/Flare pin. This pin gets pulled at the EOR (end of runway) check/inspection by ammunition when the aircraft is loaded. I'm crew-chief on heavy aircraft and we also have pins to pull before the aircraft taxis off the spot, as we do not do EOR checks or in some cases not always will pull them in the air being the box is usually located in the cargo area as some frequencies can set them off when parked.
how can it get pulled ? pls enlighten me
@@Haruko_Le at the end of the runway, a dude pulls it out
Why pull it at the end of the runway and not at the start of the runway?
@@thepioneer6178 because chaff and coutermeasures are dangerous and very inflammable, and in case of an accident / unforseen activation, you want it to happen when the airplane is isolated when ready to take off. before you pull the plug, nothing can get activated by mistake, it's the reason they even exist.
Look I am sure you all have a good reason for that...but my anxiety! Why won't you worry about the stressed out people on the internet!
You should rename this video to "F-16 Launch Procedure." Pulling the EPU pin is only one step in the whole thing. This video would be a great learning tool for future F-16 crew chiefs.
Looks like a very inefficient launch to me though. 1 time around the plane should bee enough
@@pukinator1 it depends on the crew chief on how they do it and the speed they do it. There aren't that many videos on how to launch so this video is something to go off of.
@@88sideburns22 i understand everyone has their own ways but i have been a crewchief on the f16 and used to walk around once, also pulled the epu as one of the last things to avoid possible hydrazine contact
@@pukinator1 I'm a current crew chief for the f16 and the way I was trained was to pull it during the middle of launch for the epu run up
Oh yeah rather than just walking into the exhaust 😭😭😭
Good to see that procedures haven't changed since I crewed the F-16 back in the late 80's. I still remember all of those checks. I love the smell of jet fuel in the morning. ;-)
It smells like…victory!
They must've gotten it right early on if it hasn't changed
I have a coffee cup that says that. As a retired development engineer, for the engines, I got to the early mornings by staying up all night. And no, we weren't paid for our overtime!
Is it true jet fuel exposure can lead to a form of auditory dyslexia?
Smells like hearing loss lol
The little tap on the missile at the end... the good luck tap ;)
No… it’s to see if the Seeker Head bounces on it gimbal …
Former Crew Chief here, I'd always kiss my fingers and then touch the wing after a launch, asking my Jet to bring the pilot and herself back safely. Dunno about the gimbal check they other guy was taking about
Our son, an F-16 Crew Chief had died in another accident a couple months before this happened to his best friend... An F-16 pilot accidentally dumped the hydrazine on a crewman on the ground, giving him chemically induced leukemia. It took 18 months, more or less for him to die. We got to say goodby to Michael the day before he left us at the Seattle VA hospital.
I am so sorry for your loss. His willingness to stand on the line is what has kept us safe.
Does hydrating give you cancer? I'm sorry to hear about your son's friend and of your son's passing. May they both rest in peace and you find closure.
@@michaellim4165 yeah, hydrazine is really nasty stuff, my knowledge of it from the space industry is that people try to avoid using it in designs for the first place but sometimes it's just needed and that creates a ton of extra precautions and procedures because the crew working around hydrazine related chems is at risk for something like what happened to the crewmen
Sorry for your loss.
@@maverick9708 We were told that they taught crew chiefs that one breath of the fumes takes 10 years off a person's life. I heard that later blocks of F16s had a different system w/o the hydrazine...after watching this, maybe not.
I think there is a YT safety video about a hydrazine spill during a transfer from a truck to a storage tank where some people died.
Interesting that there’s a little box for the safety pins tucked away in the airframe.
They do have to have some way to hard-safe things if they need to divert due to damage, malfunction or fuel exhastion.
It's better than just tossing a wad of flagged lock pins into the cockpit
Every pilot gets to learn how to do the stuff their crew chief does for them in case they're unavailable for some reason, and having the pins in the same place every time prevents losing them or forgetting them.
Great idea.
A, every plane carries its own set, much easier logistically, and you don't have to track, store them, have extras in case of unexpected events or emergency. It stays in the hole, or in the integrated storages, never leaves the plane. This alone would arguably offset the minor fuel efficiency & performance loss of their mass in flight.
B, in emergency settings- war, transfer, scramble, or landing- it has its safe-ing pins, even in nonstandard locales. For a military craft, invaluable. (See first reply)
C, if it shows up anywhere missing any of them, thats an integrated safety spot check, giving a rapid self-check capacity to relevant safety issues. Again, invaluable.
Just by carrying less weight than a packed lunch.
Every jet has a place. Example: A-10 ground pins ( EXCEPT WEAPONS RELEASE/ ARM ) went inside the FUEL MANAGEMENT/SPR ACCESS DOOR which is on the left wing at the Lead edge of the BUMP on the fairing for the left main landing gear
@@bobthecannibal1 well kinda … they get taught … rarely every use that skill because they typically end up being handled by Transient Maintenance.
@@iainburgess8577 all that is especially important for planes meant to operate with limited ground support from improvised and/or temporary airfields.
I was lucky enough to be an Electro-Environmental technician on these jets with the 132 FW before the AF decided to move our jets to AC and DC back in 2013. This A/C (407) and the one sitting next to it (303) were both from our unit, and I know that I turned wrenches on these airframes both at home and abroad. I retired last year, but I still very much enjoyed seeing some of my old tail numbers in action! I know I was far from the only one who was devastated when our jets left... And yes, you should pull the comm cord by the plug, not the cable. I was one of the poor souls who got to repair those cords by the bushel basketful!
Go ANG!!!!
Haha, Amphenol?
8:18 Good Grief! PULL THE PLUG, NOT THE CABLE!
Just another maintenance order 🙆♂️
Hahaha! I think we found an avionics guy that doesn't want to resolder a cannon plug
@@ihavenoidea9543 well a broken connection can also cause a short in some very expensive equipment
@@ihavenoidea9543 Avionics wouldn't be stuck fixing that. It would be the support section. OP is correct that is a rather crap way to disconnect the comm cord. It will break doing that prematurely.
And don’t wrap cord around elbow…
The F-16 is such a badass looking airplane. I was at Kunsan AB for a while and it was heaven for me with all the F-16s around there.
Were you in Maintenance?
YES, it's the Crew Chief's job to remove that safety pin just prior to the pilot to taxing out of the chocks! I've worked on the Lawn Darts for over 8 years and way back when I was just a skitter wing at Nellis AFB, NV, was sent to Luke AFB, AZ to recover a broken Lawn Dart from our wing (Spark Chaser and had to replace the IDG and do a Monopropellant Ops Check, AC & DC Distribution Check because the Main Generator Disconnected while in flight) and while we where awaiting our planes to clear EOR there was a flight of Lawn Darts at EOR getting cleared for their training mission that night, when my trainer, the planes DCC and ACC (Dedicated Crew Chief & Assistant Dedicated Crew Chief) and I was in our step van when we seen a 3 Level Weapons Trooper get sucked into the main intake of an F-16, just after the CC pulled the EPU Safety Pin and the pilot went to 85% Throttle then turned on the EPU in Bleed Air Mode, needless to say the young trooper was killed when his body hit the First Stage Compressor Blades. After the investigation the AF came down with a change to the pre-flight ops cks of the EPU, the Safety Pins are pulled at the parking spot, then the Bleed Air Ops cks of the EPU is then done at this time then the plane is released to taxi to EOR. Also the USAF recalled and banned all Parka Hood attachments to all F-16 maintainers field jackets because the investigation found that when the F-16's engine throttle went to 85% the amount of air drawn into the aircraft's main intake within 4 feet aft of the intake causes the Parka Hood to blossom like a small parachute and then able to be pulled with everything attached to the hood into the intake.
SO THIS TITLE IS NOTHING BUT CLICK BAIT,
Nothing seriously to be scared about pulling a safety pin to the F-16's EPU Ground Safety Switch just prior to the planes taxing, or even a ground maintenance run (IT'S STANDARD PROCEDURE)
整備員の作業風景、格好良い
F2と同じところもあれば全然違うところもあって大変勉強になりました。
このような動画を公開してくださってありがとうございます。
Uploads like these are always thrilling to watch ✊️😁👍
So much more calm and serene, and cleaner too than what I was used to. I'm retired Aviation Boatswain's mate (US NAVY) and my playground was flight deck aircraft carriers. Now that was a circus
Thank you for this video.
Nice bird!
Bucharest, Roumanie
Had a hydrazine leak at Hill AFB in 79, nasty stuff
いつかの航空祭で見た戦闘機の整備員めっさ格好良かった。
Loved the info boxes!
この動画、モデラーにとってはこの上ない資料になるんじゃなかろうか。ディテールアップにめっちゃ役立ちそう🤤
Oh boy, this brings back memories. My last F-16 launch was 6 years ago
My last F-16 launch was never.
My last was in 2000...lol
I was at cannon AFB from 2001-05 when they had 5 squadrons of F16s. Didn't work on them at all - I worked in airfield management. Spent a lot of time on the airfield though watching. I was obsessed with the F16 (and aviation in general) since I was a kid and played Falcon 3.0 on the computer 😂
@@joeg5414 I was at Canon, twice, booth times with F-111's. Sucked both times. Hated Clovis.
@@phoenixskeptic7698 nice! I actually found pieces on the airfield from an f111 that crashed in the 90s. Covis sucked but looking back, I kind of miss it😂
ゲームやシミュレーターだとボタン一つで終わってしまう各種作業、地上要員無しでは飛べませんな
Excellent annotation!! Please keep it up!!
EPUには有毒な物質があるので取り扱い注意らしいです
ヒドラジンは毒物ですからね。
Always a favorite. Love the close footage. It really is just an engine with wings and a seat lol. Also like the panel latch procedure of doing the hand sweep to catch anything not latched.
Chinese military aircfart engineers: *taking detailed notes*
:)
F16'S have been around a long time and many countries use them. Nothing here the Chinese don't already know.
Nothing could be cooler than being a fighter pilot, but it must feel so badass to be a crew chief too.
For sure, until your commander sends you to die in a third world country we're invading for oil by some random SAM.
Pretty cool to be a Russian or Chinese spy, sitting in a bunker taking notes from this video also! They don’t even have to work for it anymore!
Being a crew chief is only fun the first few years. Then the aches, pains and hearing loss sets in. We do our best to make it fun but a lot of commanders don't approve of moral.
@@rasmusericsson8447 Lol the F16 is nearly 50 years old. None of this is a secret.
@@Studio23Media it’s a joke man 😉
重要機体部品の作動状態を、パイロットがコクピットの計器でモニターするだけでなく、整備長がアウターハッチの外から目と耳と手で直接確認する手順があることをこの動画を見るまで知りませんでした。
コメパクられてまっせ
@@user-dj5kd4bd3p ご報告ありがとう。別に良いです。動画を見て素朴な感想を述べただけで、著作権を主張する気なんかない。
わかる気がする。
整備士さんがしっかり点検、チェックしていても事故は起こる事がある。
たしか陸自のAH64が墜落したときもAH64の整備の動画出していたと思う。(勘違いならば申し訳ない)
今回動画での機種は違うが、彼らなりの無言のフォローなんだと感じた。
Impressive, quite the process to take off.
By the way that's not the flcs panel, that's where there a delta p for the motor called the lipstick delta p. The pneumatic is underneath the lt strake next to the stab.
Never mind that the real flight control panel is in the cockpit. :)
Was looking for this reply.
I am impressed by the simple check system of looping the rope over panels to verify a rewalk and the safety pin box. Sometimes its the little things.
That's not a rope it's the communication line to the plane. It's how the crew chief and pilot stay together during the start-up. The engine generates so much noise you would never be able to talk without that connection.
All useful things are based on very simple mechanics. Overly complicated mechanisms are almost never combat effective.
He’s NOT looping the cable over the panel. The crew chief has the COMMUNICATION cord with the TALK BUTTON in his hand. He needs his hand to do the panels…
右後ろのリボンはいつ取るのだろうとずっと待ってたけど、アレ外さないのか…
多分ですけどアーミングエリアで外すんじゃないですかね？
空自でピン抜きやってましたけど、F-2と同じならチャフフレア用のピンなのでアーミングエリアで抜きます。
They had to stop recording so they could refuel the planes since the preflight takes so long
I like to call Hydrazine as Liquid Cancer. The Me 163 rocket fighter and space flight liquid fueled rockets also use that stuff. It is scary stuff.
Me-163 does not use hydrazine
@@ionator2000ist ; Laughable, look up C-Stoff. Hydrazine hydrate 30%
My son was an F16 crew chief. His best friend had a pilot dump the hydrazine on him out of an F16 at Misaua Japan in about '96. Diagnosis: Chemically Induced Lukemea. Took about 18 months of misery for his body to die. We got to say our goodbys at the Seattle VA hospital the day before he left. Hard to believe they still use that stuff. I thought later F16 Blocks had done away with it... We heard that one breath of hydrazine fumes will take 10 years off someone's life.
Brings back memories of flight line years ago
Same.
I know …right. I miss launching my Hog. … and Tanker. ( 6 years SAC / 6 TAC )
Yes! I also was wondering why I still saw one pin with a red flag hanging but not pulled. Great training item. 💨
Not a training item. Done intentionally.
@@Stubbies2003 what
@matas Gus this is the chaff/flare pin. Qualified Weapons maintainers pull it at the End Of Runway inspection right before the jet takes off
Peace & best wishes to all in 2022… From Australia 🇦🇺✌️😎✌️🇦🇺
❤🇺🇲❤🇬🇧❤🇨🇦❤🇭🇲❤🇳🇿❤
Glad you're on our side - Go Tigers - ;O)
こんな所まで見せてくれるこのチャンネル好きすぎる(≧∇≦)発進からの敬礼のハンドサインみたいなのかっこいい！
I like it, this is a very good vid!
Good job, man.!
Excellent job.
I will always love F16s.
FLCS panel and IFF panel 🤣 🤣. But they got most of them right so I'll give them that
8:15 Who taught you to unplug the connector like that?
And wind the cord around the elbow…
Blessings to the squires who take care of the knights aluminum steeds.
This right here.
F16、格好良いし美しいと改めて思います。そして整備員の大変さを実感です。
I was taught never pull on cord to disconnect. Pull on plug.
Comrade, thanks for The Heads Up;-/
早い、丁寧、プロとして当たり前の仕事って感じ。
到底素人じゃ出来ないな。戦闘機のカッコイイ整備員の仕事は。
I miss working on her. Seems like yesterday, but I left the Iowa ANG Des Moines in 1997.
I’ve seen shark week too many times. This reminds me of those fish that swim around sharks cleaning them 😆
Him going behind the Aircraft while it was Running and there was Hot Exhaust Coming out the back, he is one brave, brave man, I would never in a million years do that XD
You would be surprised how many people got caught walking behind the jet and got blown down the ramp several hundred feet.
He stands there while the flight control computer finishes it's checks and then the pilot does several checks such as nose up, down, roll left, right, then rudder left, right. The Crew Chief calls them out as the pilot does them for verification. SO that's the best spot to see them from.
If you think it's hot, try doing it in the middle east in summertime. We would be drenched in sweat by the time the pilot taxied out.
@@mykey39 yeah, just stand in a kiddie pool and you have salt sweat lake or something smh
Awesome Sauce!
I never knew the pins were stored on the planes themself. i always assumed the crew chief keeps them. actually make kinda sense.
I agree. But yes it makes sense that if the jet landed somewhere else it brings its pins.
At 02:53 just after the crew chief has removed the EPU safety pin, you hear the engine spooling up. That's the pilot testing the EPU
Whenever a truck is passing me in a truck stop, I have to reach out to touch the tail of their trailer just like this gentleman taps the wingtip missile.
Beautiful dance
I can’t wait to lead this mighty Machine.
単発でシンプルなF-16でもプリフライトチェックでこんなにやることがあるんですね
危険な作業もパイロットと意志疎通を密に交わして行っているんですね
最後のピンは滑走路脇の最終チェックで外すんでしょうか？
貴重な映像を出してくださってありがとうございます
Красивый самолёт, ничего не скажешь. Спасибо за информцию, будем знать, как обслуживать
くたばったら？
Great
EPU 💀 (^^;;
そっか、基地に戻るとも限らないから、細かな備品も機体のポケットに格納するんだ…
I would ding my head and probably poke my eye on the wingtips if I had to do this job lol
Nice to see the old flight control system self test. Do almost remember the steps ;-) One thing tho,- Don't stand there at JFS start and operation. when the JFS breaks up, thats where the pieces comes..... Telling from a friend !!
Never once saw a JFS fall apart like that and I worked the aircraft for 20 years. We always stood by the fire bottle.
@@Stubbies2003 Saw two desintegrate in 25 years. Not much, but the compressor pieces from the JFS (5x10mm) was nailed in wood work 30 feet away.
08:58 水平尾翼胴体接続付近に付いてる安全ピンはいつ外すのかが気になって夜も眠れない
I thought I was the only one
滑走路の終わりに。それはフレアとチャフと関係があります
高評価1kキリ番get!
最高の資料なうえ、なぜか見てるだけで顔がにやけてしまいますねｗ
After a while I got somewhat bored and thought to myself ‘launch already’.
But the close up of such cool and live machinery won me to keep watching with attention till the end.
👍🏼
My god if cylons were attacking we be dead already... Battlestar Galactica knew how to launch a viper quick.
@@ntal5859 The pilot completing his flight check list and waiting for taxi clearance from the tower. Also waiting for any other fighters to complete their startup checks so they all taxi together.
Anyone interested in the development of hydrazine and other liquid rocket propellants should check out the book "Ignition: an informal history of the development of liquid rocket fuels" informative and pretty funny as well.
Been a decade or more since I read that. I concur it is a pretty good read.
11:32 こんな感じのギャグあったよね…何だったか思い出せないけど
ララライララライ じゃないですか？
Did I miss it or did he not pull the pin on the aft fuselage on right side? After he disconnected his headsets I could still see the RBF streamer just aft of the wing.
Super interesting! I had no idea that the f-16 has a hydrazine powered EPU. Was reading up on it and it is pretty interesting how it works. Does this mean the f-16 does not have any kind of apu and has to use the epu to start up?
No it has a jfs
It's basically for power demands in case of in air catastrophic engine failure from what I understand... then assuming you sagely land at the nearest appropriate runway It's a circus of emergency response/hazmat teams and the pilot staying sealed in his bubble until a sniffer gives the all clear or he's down to his minimum pure oxygen, I assume off of the pony bottle in the ejection seat or maybe in the parachute? Lots of precautions for a pretty low system design, but why risk anything with hydrazine 😵 I know there is atleast one good video on TH-cam including communications, where the APU was activated and saved the aircraft, that detail was also an important part of the information relayed to the tower, since it was an emergency landing at a civilian airport if I remember right so they didn't want people rushing up to the neat gray jet pouring out death gas lol
The jfs is for engine start only. Any power required for maintenance or ground tests gets supplied by a generator set called a dash 60.
The epu provides emergency power etc in case of an engine failure in flight.
@@berryreading4809 Hydrazine is very water soluble. So they probably hose down the aircraft.
The U2 uses Hydrazine also. No room for an APU and extra weight. It’s used only for restarting the engine while in flight in case of flame out. Older turbojet engines could windmill the engine in flight to restart. With the newer turbofan engines they need assistance.
Hi, can I ask what the safety ribbon near the leading edge of the stabiliser is for, and why it was not removed? It is on the fuselage (right). Thanks
Chaff/flare, remove at EOR.
Ah yes. The good ol missile ass tap. I love it.
Also the safety pin box should have the places to insert each pin. No more or less than the number of pins. That way if there is a spot open or you got an extra it is time to figure out the mistake. Also it would secure the pins better.
空母やヘリバージョンも見てみたい！
I think its being pulled on the pad here because of just how gigantic the tarmac is, still kinda weirds me out to see it not pulled at the EOR station.
Would be interesting to see a "Ready 5" precheck for comparison...if there is one.
What is that, and what is the difference between that and this?
@@TheOpacue Ready 5 is the designation for aircraft that are prepared for immediate take off in case of attack. In the film topgun they call it Alert5. The aircraft shown are being prepared for a standard mission.
@@trig ooh cool! Like "just check the absolute necessities" kind of thing? Is that like "ready in 5 steps", or ready in 5 minutes? Like, what does the 5 stand for? So interesting 😁
@@TheOpacue Its 5 minutes, they are armed and fueled with the pilots in their seats in an area at the end of the runway. I suspect that the planes still have a number of pins in place as they need to be spooled up and the weapons made ready. I am not an expert, that's just what I have picked up over time.
@@trig that is so cool though! What is spooled up?
I think she is one of the best looking birds!
There is one more red streamer (pin) on the starboard side aft that’s still flopping around
Now this is a strange combo of a F-16. GE engine, AIFF, and analog FLCS.
How many times can you walk under the EPU exhaust port after unpinning. 1500° heated EPU air will not feel good if the pilot were to hit the EPU switch by mistake. (Not likely) but it has happened and I’ve pulled many pilots out of these birds for runway as well as in flight emergencies. This make me miss the good old days!!
Is this the procedure for all cases involving this aircraft? Or is there a rapid procedure in cases where the plane must get off the ground immediately.
This jet is not on alert status, this is the typical procedure. Alert status would only take a couple of minutes to be taxing
@@ziadajam5433 thanks
Awe Full!!!!!!
ヒドラジンってロケットに使われる燃料でしたよね？
触れたりガスに晒されるだけでも危険な品物なので、リークを検知する装備があるのですね
飛行中にエンジンストールしたら、ドカンと再始動するのかな??
8:56 - So why does that tagged safety pin remain in? Or did I miss when he removed it?
It probably gets pulled by the weapon guys at the arming point near the runway. That safety pin prevents dispensing of chaff and flares
Yup gets pulled at End Of Runway(EOR) as it's the safety pin for the chaff/flare which is an Aircraft Armament job
エンジンのノズルのところ通るの怖いなぁ…背中とか焼かれそう
築城基地の航空祭で最前列でF-2のスクランブルのデモ見たことがありますが、温かい温風といった感じですよ。
強風で砂埃はめっちゃたちますが。
さすがにアフターバーナー炊いたら大やけどでしょうけど。
@@dj5fs233 結構臭かったりってしました？
@@LrcE-gp1cm 臭いは特に感じなかったですね。ジェット燃料って灯油みたいなものですし。
Why did he leave the last safety pin in, at the right horizontal stabilizer? Does anyone know?
Chaff/Flare safety pin. Doesn’t get pulled until the A/C arrives at EOR (End Of Runway). Weapons personnel will pull the pin there.
Yes we all know. 😁
@@Juno58 I mean, he was asking a question? Obviously he didn’t know
So basically, placing these red tags in certain areas ensures that a pre trip is complete before flight? Any left on the plane would result in a failed inspection?
Just wondering but was that red tag supposed to stay there on the bottom side of the right horizontal stabilizer? you can see it @4:07
Yeah, it's meant for the Chaff/Flare modules, usually removed during the End-of-Runway inspection. Bombs/Missile pins are also removed during EOR as well
@USA Military Channel You forgot to post your distribution statement and authorization letter number.
wow! so different from the way we launch our F16 C/D/D+!
That's Dave's shadow! I'd recognize it anywhere.
Totally different than how I did it 12 years ago, but I still remember how.
crew chiefが影なの好き
Man he gets close to that exhaust nozzel.
Yeah, there should be a warning horn or something.
Nothing that isn't done every single launch of every single F-16 sortie.
Anyone else cringe at the way he disconnected the external power supply cable? I guarantee he goes through a lot of phone charging cables lol
Just curious, is there different protocol during an alert or scramble?
I imagine different aircraft would be required for a scramble.
It makes alot of since as the mechanic ( or whoever puts the pin back in ) isnt always gonna be there and the pin still needs to be put back
当然のようにノズルの下潜るの怖っ…
と思ったがインテークの下潜ってヒューマンストライクの危機よりはマシか…
I guess everybody's MOI's can be different. I have seen striking differences in operations between Air Guard, Air Reserve and Regular Air Force in my days on active duty.