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-   -   Lightning & F-15 photo? (https://www.pprune.org/military-aviation/414203-lightning-f-15-photo.html)

soddim 14th Aug 2010 17:06

Well, I certainly don't believe M12 in an F3!

It took me a lot of gas to achieve M2.

nipva 23rd Aug 2010 12:45

Zoom IAS
 

But none of these claimants has given us an IAS reading at the top of their zoom
In my case I recall 140kts at 84k. It was October 1969 and I was in F1A XM215. Can't say that I recall the Mach - the F1A did not have the combined Mach/IAS strip speed of the F3/T5/F6 and my attention was firmly on the decreasing IAS! My intention, like the others, had been to see how high this fighter pilots dream would go. Whilst going through the mid 70's discretion took over but I ran out of forward stick and so continued on upwards without daring to cancel the reheat for fear of engine surge or to roll and pull - too little IAS. To my relief, gravity and the full forward stick eventually won the day and I peaked at 84000'.

Petrolhead 27th Aug 2010 09:23

For a bit of fun, go down to Tangmere Museum and try it! ok, the software is only generic fighter ( speed does not wash off with g) but the performance is pretty close to an F3.

There is no fuel burn so you can leave it in full burner all the way up :D

Lightning Mate 27th Aug 2010 10:14


There is no fuel burn so you can leave it in full burner all the way up
But that's cheating. :\

cornish-stormrider 27th Aug 2010 11:46

Soddim,

M8 = module 8 = High Pressure Turbine

M12 = module 12 = Low Pressure Turbine

Mod Rep - we built them all, just some were nicer than others

soddim 27th Aug 2010 16:07

Thankyou for that clarification.

Those modules were certainly well-built - I managed to split a whole flock of seagulls on take-off - at least a dozen divided between the two engines and they both kept turning at more than 90% all the way round the circuit to land. Not a lot of thrust though.

On another occasion we had an aircraft that lost its' radome and scanner plus waveguides - again more or less equally divided between the two engines and, once again, your modules all kept turning and produced enough thrust to get the jet on the ground.

Not a lot of modern engines would cope with that.

rubberband2 30th Aug 2010 11:56

But only one claimant has given us an IAS reading at the top of their zoom - 2
 
Nipva – ref #123 - Thank you. It is nice to see some IAS numbers quoted from a true aviator rather than a 'wannabe' .....

Realism and records are getting closer together.


Earlier: But we really need some more IAS readings at the top of their ballistic zooms (or controlled flight?) from the likes of those who claim 80K+ Lightning height records such as ...

Will “Firestreak” (#42) or Mike Hale (#45) please describe for us the profile that they used with IAS & Mach (...probe limits?) to reach a U-2 flying at it’s normal height of some 70,000’+?
PS "...and 80K?"
PPS "... and IAS at 88K in post #65 by Roome?
On a similar subject, an airtest ended with a 'joie de vivre' much lower zoom. The Lightning Mk6 was homebound at the end of the high Mach run: there were concerns for a quickly reducing fuel reserve.
As the throttles were eased back there was a 'banging' in the intake below. A careful inspection after the flight revealed nothing untoward. The local R-R rep just shrugged his shoulders and said the Avons were 'real tough - don't worry'.
But the intake choking feeling on power reduction was an uncomfortable moment.

The Lightning remains a real hot-rod to this day. Let us hope that the 3 flyable Cape Town based Lightnings will return to the display circuit soon.

nrl1965 4th Mar 2011 14:33

Lightning
 
I only worked on them but all these stories ring the same bells today as in the 80s.
Lets face it it was a rocket that only had wings on it to make the pilot feel like it was in fact an aircraft and not a ballistic missile.
I fly these days my self and wish I had their luck to be sat in the fastest thing out of binbrook, next to my old escort mexico.

Top speed was never declared (its a Secret)

:):O:}

sturb199 6th Mar 2011 03:47


it must have had one of my gold seal module 8's in the arse end - my M12 wasn't bad either.
Nah it must have been the boys in the M15 bay that were doing all the work!!!
;)

GeeRam 6th Mar 2011 10:37


Originally Posted by nrl1965
I fly these days my self and wish I had their luck to be sat in the fastest thing out of binbrook, next to my old escort mexico.

Top speed was never declared (its a Secret)

Top speed was bang on 100mph, although I managed 110mph indicated in the Mex I owned ;):E

Wander00 6th Mar 2011 11:58

Must have been a thing at Binbrook - I remember B-P had an RS 2000 - that was stinking quick!

nrl1965 6th Mar 2011 23:10

Think I reversed in to that one? oopshttp://images.ibsrv.net/ibsrv/res/sr...lies/worry.gif

Lightning Mate 7th Mar 2011 12:43


In my case I recall 140kts at 84k. It was October 1969 and I was in F1A XM215. Can't say that I recall the Mach - the F1A did not have the combined Mach/IAS strip speed of the F3/T5/F6 and my attention was firmly on the decreasing IAS! My intention, like the others, had been to see how high this fighter pilots dream would go. Whilst going through the mid 70's discretion took over but I ran out of forward stick and so continued on upwards without daring to cancel the reheat for fear of engine surge or to roll and pull - too little IAS. To my relief, gravity and the full forward stick eventually won the day and I peaked at 84000'.
Since the Lightning was cleared to 60,000 ft. may I suggest that was very silly and I don't believe a word you say.

Even with a pressure suit, do you know how long it would take for your blood to boil at that altitude if the pressurisation failed?

You, Sir, are a Troll!!

Please feel free to PM me......

nrl1965 7th Mar 2011 19:08

60,000ft
 
you could do it in a glider with a pressure suit over the Andes, well 50,699ft so 60,000ft + in a lightning, EASY.http://images.ibsrv.net/ibsrv/res/sr...lies/yeees.gif
If your pressure suit fails in any flight in or above that Level then the result would be the same or similar regardless to the vehicle your in, also look at the fact that the human race always seems to be pushing the envelope, not all but their not the ones we tend to remember.
Now that doesn't make it right to push past limits, but the temptation to do so is too strong for some who still have the frontier pushing way of thinking.
Sorry to say I play safe so you will never know of me past this site.

bigglesbrother 14th Jun 2015 17:04

barnstormer1968 AND cornish-stormrider appear to be the same wannabe pilot. Some of the comments are childish.

None of his comments so far have any merit in discussing aerodynamic or high performance flight.

But these pprune columns and news bites do exist for all aviation buffs.

http://www.pprune.org/forums/images/.../eusa_clap.gif


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