Harriers can't really do this........... Can they?
Harriers can't really do this........... Can they?
Author
Discussion

T89 Callan

Original Poster:

8,422 posts

216 months

Thursday 26th November 2009
quotequote all
Call of Duty Modern Warfare 2 recently came out, the previous versions have claimed to (at least on the weapon front) be fairly true to life.

In this one though you can call in a Harrier attack were a Harrier 'hovers' overhead with a minigun turret under the nose that has full multi axis rotation (like the guns in the noses of attack helicopters, see below)


Anyway I was under the impression that A) Harriers only really hover during take-off and landing and B) Don't have a fully moveable gun turret under their nose.

Am I right here? Have Infinity Ward invented a new plane?

aeropilot

39,622 posts

250 months

Thursday 26th November 2009
quotequote all
T89 Callan said:
Am I right here?
Yes....it's complete tosh.

telecat

8,528 posts

264 months

Friday 27th November 2009
quotequote all
Yes Harriers can hover for a time but it firstly uses a lot of fuel and secondly they use water to cool the rotating "Pipes" which runs out after a short time. They can continue but it damages those "pipes". The Minigun in a turret is nonsense.

tegwin

1,682 posts

229 months

Friday 27th November 2009
quotequote all
As far as I am aware the harrier doesnt have any kind of canon onboard... Just underslung weapons mounts for various rockets, missiles and bombs...

I like the idea of having control of UAVs in the game though smile

aeropilot

39,622 posts

250 months

Friday 27th November 2009
quotequote all
tegwin said:
As far as I am aware the harrier doesnt have any kind of canon onboard...
Current in service versions don't, but the original GR.1/GR.3 and Sea Harrier FRS.1 versions had 2 x 30mm cannon pods fitted to the underside of the fuselage either side of the centre line pylon.

RizzoTheRat

28,011 posts

215 months

Friday 27th November 2009
quotequote all
Adens presumably? Don't the AV8/Bs have a gattling pack they put on a wing hardpoint?

Eric Mc

124,756 posts

288 months

Friday 27th November 2009
quotequote all
Didn't the Harrier GR1/GR3 and AV-8A also have a cannon buried in the port wing root?

RizzoTheRat

28,011 posts

215 months

Friday 27th November 2009
quotequote all
Buggles said:
I seem to remember one of the engineers here telling me they had about 11/12 seconds worth of hovering before it would overheat.
Think it depends on payload. The water injection system lowers the turbine entry temperature allowing them to run the engine at a slightly higher thrust setting, with a light enough load, or in low enough temperatures, they can hover without the water, but otherwise you're limited by how long the water lasts.

ndtman

752 posts

204 months

Friday 27th November 2009
quotequote all
RizzoTheRat said:
Buggles said:
I seem to remember one of the engineers here telling me they had about 11/12 seconds worth of hovering before it would overheat.
Think it depends on payload. The water injection system lowers the turbine entry temperature allowing them to run the engine at a slightly higher thrust setting, with a light enough load, or in low enough temperatures, they can hover without the water, but otherwise you're limited by how long the water lasts.
Correct. Another aspect is the de-mineralised (sp) water rapidly expands producing more gas flow. De-min' being used to prevent damage to the fine cooling holes in the turbine blades.

ninja-lewis

5,205 posts

213 months

Friday 27th November 2009
quotequote all
RizzoTheRat said:
Buggles said:
I seem to remember one of the engineers here telling me they had about 11/12 seconds worth of hovering before it would overheat.
Think it depends on payload. The water injection system lowers the turbine entry temperature allowing them to run the engine at a slightly higher thrust setting, with a light enough load, or in low enough temperatures, they can hover without the water, but otherwise you're limited by how long the water lasts.
Also isn't it a once-only thing? Once you switch it on, you can't switch it off so you better get the landing right first time?

perdu

4,885 posts

222 months

Friday 27th November 2009
quotequote all
Eric Mc said:
Didn't the Harrier GR1/GR3 and AV-8A also have a cannon buried in the port wing root?
No Eric only in the underslung Aden packs on the GR1/3s AV-8A as far as I remember

Much of the upper skin panelling has to be removed to access and service the Pegasus doesn't it, hardly any room for a cannon too

I seem to recall a lot of air bleed holes around the fuselage and inner wing leading edge that could look as if they were gun ports though, might have confused you.

MartG

22,349 posts

227 months

Friday 27th November 2009
quotequote all
aeropilot said:
tegwin said:
As far as I am aware the harrier doesnt have any kind of canon onboard...
Current in service versions don't, but the original GR.1/GR.3 and Sea Harrier FRS.1 versions had 2 x 30mm cannon pods fitted to the underside of the fuselage either side of the centre line pylon.
The GR.1/GR.3 and FRS.1 all could carry a pair of 30mm Aden packs. Later variants also can carry two pods, but one holds a 25mm gun while the other holds ammunition for it, with a feed tray joining them.

ndtman

752 posts

204 months

Friday 27th November 2009
quotequote all
perdu said:
Eric Mc said:
Didn't the Harrier GR1/GR3 and AV-8A also have a cannon buried in the port wing root?
No Eric only in the underslung Aden packs on the GR1/3s AV-8A as far as I remember

Much of the upper skin panelling has to be removed to access and service the Pegasus doesn't it, hardly any room for a cannon too

I seem to recall a lot of air bleed holes around the fuselage and inner wing leading edge that could look as if they were gun ports though, might have confused you.
AFAIK GR1/3 had a refuel pod on port wing root (fixed installation, removed when not required), later GR5/7/9 versions have retractable refuel pods.

dirty boy

14,819 posts

232 months

Friday 27th November 2009
quotequote all
http://www.youtube.com/watch?v=TaxvpfKT2qY

Skip to 4:30

That Harrier hovers for over 30 seconds.

It was travelling at speeds less than 20mph beforehand, forwards AND backwards.

Superb machines.

Can't comment on the weaponry, sorry.

Waynester

6,495 posts

273 months

Friday 27th November 2009
quotequote all
Is it true that fully armed & fuelled they can't take off vertically?
Hence the ski ramp on carriers to assist...

tank slapper

7,949 posts

306 months

Friday 27th November 2009
quotequote all
They can only take off vertically if the weapon and fuel load are less than the thrust of the engine, and even then it wouldn't be preferable to do it if there was runway space available because it uses a lot of fuel. Fully loaded, a GR9 can't take off vertically but it can do a shorter take off run by partially angling the nozzles.

The ski-ramp on the carriers allows a larger load to be carried with no increase in take off run required.

Simpo Two

91,179 posts

288 months

Friday 27th November 2009
quotequote all
tank slapper said:
The ski-ramp on the carriers allows a larger load to be carried with no increase in take off run required.
Which is a good job beacuse after that it's the end of the ship!

Those early transatlantic flyers would have benefitted from a ski-jump too, I guess. Several of them crashed on take-off from being overloaded with fuel.

Papoo

3,909 posts

221 months

Friday 27th November 2009
quotequote all
Given the demand on a harrier pilot during the hover; a harrier pilot in the hover, trying to operate weaponry would be termed a 'sitting duck'.

danyeates

7,248 posts

245 months

Friday 27th November 2009
quotequote all
Ha ha, reminds me of last weekend! My brother was playing the new COD and my stepdad was watching - he suddenly shouted "Rubbish! It can't do that!"

telecat

8,528 posts

264 months

Saturday 28th November 2009
quotequote all
As a quick aside the Harrier's Thrust is many times that of "normal" engines. In Theory it could easily go supersonic. It;s the way that thrust is delivered that causes the problem. Hawker had plans for Plenum "afterburners" for a Supersonic Harrier in the later 60's early seventies however it was never taken up. There are if you look plans for several "Super-Harriers" None of which use what is to be frank the crappy "lift fan" of the F-35.