Their rocket exhaust as they're being fired would slow the planes down, rather than providing a boost
For the same reason, cars have exhaust on the rear so that they can go much faster forward than backward
Edit: /s since you apparently need it after every joke. I know that missiles aren't really fired, they detach and then propel themselves. Also, anyone who's ever idled their car on a flat surface knows that the exhaust thrust cannot even overcome rolling resistance.
Ackshually they do this, not with cars but, with WW2 era prop planes.
The Spitfire for example:
The Merlin consumed an enormous volume of air at full power (equivalent to the volume of a single-decker bus per minute), and with the exhaust gases exiting at 1,300 mph (2,100 km/h) it was realised that useful thrust could be gained simply by angling the gases backwards instead of venting sideways.
During tests, 70 pounds-force (310 N; 32 kgf) thrust at 300 mph (480 km/h), or roughly 70 hp (52 kW) was obtained, which increased the level maximum speed of the Spitfire by 10 mph (16 km/h) to 360 mph (580 km/h). The first versions of the ejector exhausts featured round outlets, while subsequent versions of the system used "fishtail" style outlets, which marginally increased thrust and reduced exhaust glare for night flying.
From Wikipedia
The exhaust doesn't propel a car forward
I'm going to start a meme crackpot theory.
Torque doesn't exist.
Cars move because of the exhaust gasses.
"What about trucks with an exhaust that points up?" I hear you ask, well why are they always bent over at the top to point backwards?
Tractors that have an exhaust on the top use it to keep the tractor on the ground, otherwise the forces of dragging things would cause the tractor to float off the ground. But the exhaust is pointed backwards slightly, other wise it wouldn't move. The small backwards pointing force explains why tractors are so slow.
Electric cars are CGI, and part of the conspiracy to hide the fact that torque doesn't exist.
I think you've created the sovereign motors movement.
Electric cars are CGI, and part of the conspiracy to hide the fact that torque doesn’t exist
Ah so the cyber truck just never got an up close model made
Yeah for some reason they locked the model detail at some hilariously long draw distance so it only has like 15 polys
My god, you're onto something here. That must also be why we evolved with backward facing asses, to ease our walks when we fart. Ventilated seats in your car? They help channel your farts to add nitro boost to your car's exhaust.
Fucking hell, the air vents in the dashboard are all blowing backwards against the direction of travel, too. We been living a lie.
And the radiator at the front? Actually for extra speed.
That's all a turbo is. It's just a fan in the exhaust pipe adding more speed.
And superchargers need a big air scoop due to the amount of air it pushes out the back.
This is even better than birds aren't real. Which is true also.
I forgot you need "/s" after every joke, even in joke communities. It is a reference to this greentext:
Let's give anon the benefit of the doubt. Perhaps they're an alien engineer from a planet that only knows rockets, disguised as a teenager to learn about our modes of transportation.
Yes, there is a short film with just about this plot
OK. I didn't know that one.
Let's agree on that the effect is of negligible magnitude.
For the same reason, cars have exhaust on the rear so that they can go much faster forward than backward
Where do people come up with this nonsense
It's a reference to the greentext I posted in another comment. I know it makes no sense.
Fighter planes should just have a reverse gear. It would be much more simple.
Can't just drop it into reverse from like Mach 5 gear. Would need like a Mach 1 reverse, then speed back up to Mach 5 reverse
We can't reverse. It's too dangerous. We have to slow down first!!
Bullshit! Just reverse this thing! I order you! Reverse!
Yes sir! air transmission gears grinding
The original concept for a similar system was to have the pilot jettison multiple styrofoam mcdonalds containers out the rear of the aircraft, which would shred in the jet wash and gum up the enemy engine. A mockup of the system was performed along american highways in the 1970’s.
Unfortunately, future conditions made the system impractical, not due to a difficulty in finding styrofoam containers in america, but in getting the contract-required grimmace costume on the test pilots. The program was discontinued in 2018 due to budget reappropriating of funds for backup kuerig machines in all air force base quarters.
Missiles require an inordinate amount of thrust for their weight to remain airborne, due to the lack of large(ish) wings. Because the aircraft is already moving forward at high speed, the missile would lose considerable altitude (if fired backwards) before it would acquire sufficient velocity on it’s own again.
IIRC there have been missiles that could be targeted against aircraft behind the one launching the missiles. They would lock the missile against the pursuing aircraft, fire it forward, and the missile would arc around to go after the other aircraft.
Now bullets on the other hand, can come in supersonic versions. Unless the aircraft is moving at Mach speeds (and you always slow down to dogfight in order to make turns survivable), a supersonic bullet fired backwards will have sufficient speed in that direction to reach the other aircraft without too much aiming difficulties.
Beyond bullets: AFAIK there have been experiments in launching chaff (metal filings) such that it gets ingested into the pursuing aircraft’s engines, causing damage that way. But from what I recall there was too much of a risk of other aircraft in the vicinity and below that engagement also getting caught in the falling chaff. Still good for enemy aircraft, not so much for your own teammates.
Because you have to think in russian to fire them.
It's obviously a great idea, but
(why has no one said this yet?)
Ackshually 🤓 - those things in the image of the A-4 that you flipped around are fuel tanks, not weapons.
Pretty sure those are Mark 14's.
A-4 Skyhawks, like most fighter/attack jets since the 1960s, usually fly with at least one drop tank of fuel. The two tanks under the wings is the most used configuration during the 60s and early 70s. Later versions, such as the USMC's A-4M, which was used until the early 90s (but not deployed in Desert Shield / Desert Storm), were often seen with a larger drop tank (400 gallon?), often preferring a single large drop tank on the centerline to have more room for weapons. These did have a significantly stronger engine so bringing a larger payload was useful.
....why does Lemmy's noncredible insist on being lesscredible, or even credible?
But thanks for the write up and graphics to show me why WWII era naval torpedoes weren't actually mounted on those hard points lol.
There was a Clint Eastwood movie where backwards firing missiles were the whole shtick.
The catch is the plane is controlled by thoughts. Russian thoughts. The final dogfight came down to Clint finding his inner Russian and thinking of the magic word "blyat" to get the plane to fire ze backwards missiles.
It was a wild ride.
This movie seems horrible. I have to see it.
Given that summary I thought you were joking but holy shit that is an actual movie. crazy!
What the actual fuck.
That's a fun movie
Submarines used to have torpedo tubes in the back.
OP reinvents tail gunners
embrace tradition
Regular forward facing missiles need to be "aimed" at enemy planes to be effective. How can you aim at something that is behind you?
Yo Ishmael! The boys at Mithridates University have come up with this sick new tech. The Romans won't know what hit them!
Why would anything be "behind" them?
It's called being chased at a dogfight.
The missile would have to cancel out the speed of the plane before achieving any meaningful acceleration.
To be fair, speed is relative. Imagine a plane flies at 500 km/h and is pursued by another plane at the same speed. If the first plane fires a rocket backwards that accelerates for a total of 200 km/h, then for an observer on the ground the rocket will still do 300 km/h, in the same direction as the planes. However, the guys in the second plane will see a rocket approaching them at 200 km/h.
Wind resistance, aerodynamics, etc. will have an impact, but it can work.
A community for your defence shitposting needs
Rules
1. Be nice
Do not make personal attacks against each other, call for violence against anyone, or intentionally antagonize people in the comment sections.
2. Explain incorrect defense articles and takes
If you want to post a non-credible take, it must be from a "credible" source (news article, politician, or military leader) and must have a comment laying out exactly why it's non-credible. Random twitter and YouTube comments belong in the Low Hanging Fruit thread.
3. Content must be relevant
Posts must be about military hardware or international security/defense. This is not the page to fawn over Youtube personalities, simp over political leaders, or discuss other areas of international policy.
4. No racism / hatespeech
No slurs. No advocating for the killing of people or insulting them based on physical, religious, or ideological traits.
5. No politics
We don't care if you're Republican, Democrat, Socialist, Stalinist, Baathist, or some other hot mess. Leave it at the door. This applies to comments as well.
6. No seriousposting
We don't want your uncut war footage, fundraisers, credible news articles, or other such things. The world is already serious enough as it is.
7. No classified material
Classified information is off limits regardless of how "open source" and "easy to find" it is.
8. Source artwork
If you use somebody's art in your post or as your post, the OP must provide a direct link to the art's source in the comment section, or a good reason why this was not possible (such as the artist deleting their account). The source should be a place that the artist themselves uploaded the art. A booru is not a source. A watermark is not a source.
9. No low-effort posts
No egregiously low effort posts. These include Social media screenshots with a title punchline / no punchline, recent (after the start of the Ukraine War) reposts, simple reaction & template memes, and images with the punchline in the title. Put these in weekly Low effort thread instead.
10. Don't get us banned
No brigading or harassing other communities. Do not post memes with a "haha people that I hate died… haha" punchline or violating the sh.itjust.works rules (below). This includes content illegal in Canada.
Join our Matrix chatroom
Other communities you may be interested in
Banner made by u/Fertility18
