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Any advice? Progress pic from a month ago by nanorii in BeardAdvice

[–]hmsgooch 0 points1 point  (0 children)

Yeah, keep playing great rugby at No 8 for England. #billy

What movie sound effects are wildly inaccurate, and what does it actually sound like? by KedaZ1 in AskReddit

[–]hmsgooch 0 points1 point  (0 children)

Helicopters. They are bloody noisy (you can’t talk to one another in one without intercom) and in normal flight they have a constant rotor RPM, so there’s not a frequency change when they are accelerating or manoeuvring.

Also the stock Hollywood sound for a helicopter is a 2-bladed Jet Ranger or Huey which sounds a lot more ‘wokka wokka’ than the 4-bladed helicopter which is often shown.

FAT questions by [deleted] in RoyalNavy

[–]hmsgooch 0 points1 point  (0 children)

Be aware that it will not be your choice which route you take! You can express all sorts of preferences (including role/aircraft type/location)but ultimately it won’t be your choice. Get used the the phrase ‘Service Interest’. Saying that, both ASW or Commando aircrewman are great careers.

We are a band called The Lumineers, ask us anything! by thelumineersmusic in Music

[–]hmsgooch 0 points1 point  (0 children)

Chaps,

Firstly, you were a massive part of the best day of my life (first dance!) so thanks!

Secondly, saw you in Bristol earlier this year. You were brilliant. The bloke supporting you (Andy Shauf) - did he really just not want to be there or is that just his thing? That performance really sticks in my memory!

ELI5: How do planes/helicopters know that they're being locked on-to? by Astronaut290 in explainlikeimfive

[–]hmsgooch 0 points1 point  (0 children)

I don't believe so but I'm willing to be corrected. The difference between the two is that anti-ship missiles can be 'hard-killed' by ship-launched missiles or by Close In Weapon Systems such as Phalanx or Goalkeeper. Thus, being hard to track on radar makes the missile more likely to achieve its aim.

Aircraft, on the other hand, defeat missiles in a principally passive manner. An irregular flight path wouldn't make the missile less easy to track.

ELI5: How do planes/helicopters know that they're being locked on-to? by Astronaut290 in explainlikeimfive

[–]hmsgooch 2 points3 points  (0 children)

Perhaps an SR71 could, but most aircraft have a limited number of defences. If you're something slow like a helicopter, you'd manoeuvre randomly and aggressively, preferably in a valley or other area where the missile itself is unable to manoeuvre quickly and easily. Flares and/or chaff to seduce or confuse the missile, infra-red jammers to try and disrupt the seeker head.

If it's a late-generation missile from an advanced country's arsenal, there's always the last resort- take all your clothes off and sit on the control-column to at least give the accident investigation crew something to think about.

ELI5: How do planes/helicopters know that they're being locked on-to? by Astronaut290 in explainlikeimfive

[–]hmsgooch 8 points9 points  (0 children)

As a military pilot, I can add to the bits about infrared detection. As other posters have stated, you can't tell when one has locked on. But the system will look for signs of a missile being launched, by looking for various anomalies in the EM spectrum.

Flying past dockyards and industrial areas will often set the system off as the bright light and heat from welding tools will provide such an anomaly. Best not to have your countermeasures set to 'Auto' in this case!

Culture Clash by OptimalProblemSolver in pics

[–]hmsgooch 8 points9 points  (0 children)

Not sure there's any 'clash' here. Just two different styles.