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-   -   ‘Fast jets’ (https://www.pprune.org/military-aviation/616587-fast-jets.html)

stilton 23rd Dec 2018 05:11

‘Fast jets’
 
Curious as to how this term came into use,I believe it’s only used in the UK to describe
fighter / strike aircraft


Most jets are reasonably fast so how did aircraft in this class end up with this description?

ExRAFRadar 23rd Dec 2018 06:04

Nice try, now go and have a lie down.

MPN11 23rd Dec 2018 07:45

I had a Belvedere unhelpfully refer to himself as a “twin turboprop” on the RT. ;)

I guess he was also a slow-jet!

Pontius Navigator 23rd Dec 2018 08:48

Or ME when many FJ had two engines and RW also, but ME was neither FJ or RW.

In initial pilot training however the Jet Stream was ME in contrast to the Hawk which was FJ. On graduating your pilot was either FJ, ME, or RW trained.

In other words the origin was the training system and not the operational type.

stilton 23rd Dec 2018 09:24


Originally Posted by Pontius Navigator (Post 10342708)
Or ME when many FJ had two engines and RW also, but ME was neither FJ or RW.

In initial pilot training however the Jet Stream was ME in contrast to the Hawk which was FJ. On graduating your pilot was either FJ, ME, or RW trained.

In other words the origin was the training system and not the operational type.


Understand,

Thanks for the informative reply, now it makes sense

Tankertrashnav 23rd Dec 2018 10:35

The Mk I Victor was certainly a "fast jet" once it got going, with many examples of it exceeding Mach one. However during its takeoff run and climb it was most definitely a "slow jet"!

chevvron 23rd Dec 2018 12:26


Originally Posted by stilton (Post 10342625)

Most jets are reasonably fast so how did aircraft in this class end up with this description?

Er Jet Provost?

stilton 23rd Dec 2018 12:57


Originally Posted by Tankertrashnav (Post 10342768)
The Mk I Victor was certainly a "fast jet" once it got going, with many examples of it exceeding Mach one. However during its takeoff run and climb it was most definitely a "slow jet"!


I’m just finishing ‘Victor Boys’


I’m even more impressed with that amazing aircraft now, as you say it was very fast


Cruising at .85 initially at FL470 in the MK 2


Quite something and easily the best looking bomber until the B1 came along

SASless 23rd Dec 2018 13:32


Quite something and easily the best looking bomber until the B1 came along

My vote would have to be for the Boeing B-47 when it comes to "beauty".


https://www.cloud9photography.us/Mil...ry/i-RVWBMXR/A

Pontius Navigator 23rd Dec 2018 16:19


Originally Posted by chevvron (Post 10342870)
Er Jet Provost?

Basic trainer that enabled FJ/ME streaming.

flash8 23rd Dec 2018 16:35

If I recall BFT (or do I mean EFT?) was on the JP and were then streamed/chopped after aptitude was determined, going by the famous TV series of the early 80's of course (so I admit I could be wrong), Was the reason made to move away from the JP purely based upon age/maintainability of the a/c etc?

Pontius Navigator 23rd Dec 2018 16:36


Originally Posted by flash8 (Post 10343050)
If I recall BFT (or do I mean EFT?) was on the JP and were then streamed/chopped after aptitude was determined, going by the famous TV series of the early 80's of course (so I admit I could be wrong), Was the reason made to move away from the JP purely based upon age/maintainability of the a/c etc?

Flash, your last privacy age.

Garbled

It should have been your last point - age and maintainability.

India Four Two 23rd Dec 2018 19:01

I always thought that 'fast jet' was used for comms security. I remember when I was flying cross-country in UAS Chipmunks, we were told we must use the term 'single piston' when talking to ATC.

I bet that fooled the Russian 'trawlers'! :E

Phantom Driver 23rd Dec 2018 19:29

Stilton-

Quite something and easily the best looking bomber until the B1 came along
Second that . Now those WERE the days of Great Britain; Handley Page, English Electric , Hawker , Avro , Vickers , Blackburn etc etc......

Oh well , must be time for another G & T .

Pontius Navigator 23rd Dec 2018 19:51

I42_ you were not alone. We were a 4-jet rather than a Vulcan. At the time the RAF had only 4 types of 4-Jet.

Herod 23rd Dec 2018 22:14


Basic trainer that enabled FJ/ME streaming.
And rotary. I know; I went that route. (the cream always rises)

NutLoose 24th Dec 2018 01:46

so incidentally does poo ;):O:}

stilton 24th Dec 2018 02:11


Originally Posted by SASless (Post 10342920)
My vote would have to be for the Boeing B-47 when it comes to "beauty".


https://www.cloud9photography.us/Mil...ry/i-RVWBMXR/A


The B47 was a great looking aircraft, it’s cockpit canopy must surely be the largest
ever made !

sharpend 24th Dec 2018 10:03

One of the very fast jets was the VC10!

Lima Juliet 24th Dec 2018 11:14


Originally Posted by sharpend (Post 10343587)
One of the very fast jets was the VC10!

:p :p :p :p for an airliner...iirc the Vne (Vmo) was 315kts IAS and Mne M.94? So ‘very fast’ for an airliner but not quick enough to be a ‘fast jet’.

NutLoose 24th Dec 2018 11:45

A Jaguar was a fast jet................. :E

dook 24th Dec 2018 14:00


A Jaguar was a fast jet................. https://www.pprune.org/images/smilies/evil.gif
Limited to M0.9 at low level if drop tanks were fitted. Could exceed it though.

Here we go...……………………..

SASless 24th Dec 2018 14:16

Stilton......the early model B-52 Stratofortress (not necessarily fast or pretty but still hoofing it all these decades later) also started life with a canopy design that made it look very similar to the B-47.


https://en.wikipedia.org/wiki/Boeing...52sideview.jpg

factanonverba 24th Dec 2018 18:51


Originally Posted by ;
Limited to M0.9 at low level if drop tanks were fitted. Could exceed it though.

.95 comes to mind with tanks fitted.

dook 24th Dec 2018 19:20

I stand corrected.

My display jet was totally clean apart from the outboard pylons, which marginally improved directional stability, which the jet started to run out of at high alpha.

Ogre 25th Dec 2018 03:55

The Buccaneer was a "Fat" jet.......

NutLoose 25th Dec 2018 12:03

Considering the Jag was originally a trainer design I always thought its ability to go supersonic wasn't bad.

There were rumours about a VC10 achieved it, even a spitfire came close.

sharpend 26th Dec 2018 08:14


Originally Posted by NutLoose (Post 10344256)
Considering the Jag was originally a trainer design I always thought its ability to go supersonic wasn't bad.

There were rumours about a VC10 achieved it, even a spitfire came close.

The Jaguar, if clean, was supersonic at low-level. I should know. Shall not say where though :)

The VC10 has gone supersonic, though in error. Crossing the Pond at speed with the Flt Eng off the flt deck, then passing thro a front resulted sometimes in a big change in temperature which resulted in s big speed jump. Though the mach warning horn would have sounded, unless of course a naughty man had pulled the cb.

NutLoose 26th Dec 2018 13:08

I did a supersonic dive in the back of a Jag off Gib once :)

The spitfire was a Mk 19 in a dive off Hong Kong with a Flt Lt Powell at the controls.

NutLoose 26th Dec 2018 13:10

I did a supersonic dive in the back of a Jag off Gib once :)

The spitfire was a Mk 19 in a dive off Hong Kong with a Flt Lt Powles at the controls.
it was PS854 and recorded 0.96 Mach or 715mph in a dive from over 51,500 ft and no that isn't a typo!

More here
Edward Powles ? Fastest Piston Pilot ? World of Indie


...

Thud_and_Blunder 26th Dec 2018 16:35


Considering the Jag was originally a trainer design I always thought its ability to go supersonic wasn't bad.
Haven't done a recent search, but I believe the Jag may have had its roots in the Breguet 121, which ISTR was a potential bidder for the NATO light-fighter competition (Sabre replacement?) that was sort-of won by the Fiat G91. Sort-of, in that only the Germans, Italians and Portugese ever bought them. As usual, facts are probably all over the shop - DuckDuckGo is your friend (never touch G00gle meself...)

Pontius Navigator 26th Dec 2018 21:09


Originally Posted by BigGreenGilbert (Post 10344872)

Course you did!

And survived 🤓

BEagle 26th Dec 2018 22:06

sharpend wrote:

The VC10 has gone supersonic, though in error. Crossing the Pond at speed with the Flt Eng off the flt deck, then passing thro a front resulted sometimes in a big change in temperature which resulted in s big speed jump. Though the mach warning horn would have sounded, unless of course a naughty man had pulled the cb.
Oh really? That could only happen if someone was trying to maintain a constant TAS and failed to notice a change in OAT of around -57 deg C! Frankly I smell BS, I'm afraid! Try doing the IMN / IAS / OAT calcs, mate! What I suspect happened was that no-one was monitoring the IAS and the change in OAT across a front increased engine thrust, which caused the aircraft to accelerate, tripping the high speed warning horns...and probably the odd surge or few!

During Full Air Tests, I was authorised to take the VC10K2/3/4 up to (IIRC) M0.925. The airflow noise and buffeting, as well as the nose down pitch change at high IMN and the general handling, indicated to me that anything faster would have been very risky. The VC10 C Mk1 was cleaner, but even so I very much doubt that any RAF pilot ever went supersonic in a VC10!

Hockham Admiral 27th Dec 2018 09:41


Originally Posted by Ogre (Post 10344075)
The Buccaneer was a "Fat" jet.......

She certainly was! With a clean wing Mk 2A and newish Speys she would reach M.95 or 620kts on arrival at a display back in the day. You had to be very sure that you kept the ball in the middle above 600kts.

Percy Cute 27th Dec 2018 14:26

Fighters, bombers, etc.
 
Most jets are fast (or vast).
Some are fighters, the majority are not.
Questions?

NutLoose 27th Dec 2018 17:04


Originally Posted by Pontius Navigator (Post 10344965)
And survived ��

:) S / Ldr St**n 14 Sqn took me up to do aeros, nice experience as was flying in a Fuga.. incidentally we put some Jags up for the border opening if i remember correctly, but we were not there so to speak at the time, it was flag waving come hands off sort of detachment.... caused a few in RAFG and the UK to nearly have heart failure when they saw the impromptu flight on the news, good detachment, bar nearly stuffing the seven three into the rock trying to land in out of limits crosswinds, apparently the crash was sounded as they thought we were history. Night on the Algarve and back the next day, followed by several days of walking around smelling like I had been on the piss all day and getting pulled up more than once because of it due to the muppets smashing the litre of spirits in my bag that was on top of all my uniforms.

olster 27th Dec 2018 18:04

Well, that made sense...


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