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

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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