Considering how long it took to plumb in refuelling probes for Nimrods in 1982 (a couple of weeks for the first one?), I think it should not be beyond the wit of man to rig up a probe which would fit over the receptacle in pretty short order. In fact, I think such a thing has been invented.
It was done in very short order. There is however a great difference between a solution that’ll “do a trip” and one that lasts the lifetime of the airframe. The original IFR fit for the Nimrod was not to normal technical specs.
Pedantic but true:rolleyes:
On the other hand if you want to use the boom as God and Boeing intended then you need to have boom recepticles.
Indeed.
Schorsch, the point I was trying to make wasn’t about how effective it was (or otherwise), but to try to note that suggesting that Blackbuck 1 (at least) doesn’t merit being termed a strategic operation isn’t correct, since the intent behind it was most definitely focused at the strategic and operational levels.
Indeed, the strategic target was to split up the Argentine airforce. This worked well, alot of assets were kept at home for defence instead of attacking the fleet.
The only RAF type that can tank off boom equipped tankers is the E3D Sentry (apparently RAF Sentry crews prefer tanking off American tankers using the boom).
Actually most RAF types can tank off a flying boom, providing there is a drogue attatchment on the boom.
Retiring an 1950s aircraft in the 80ies, that eats resources, cannot fly missions against a defended airspace, doesn’t have useful range, and after all doesn’t carry so terribbly much bombs. I would say: overdue.
It was 25 years ago today. A victor with a bomb bay full of bombs instead of fuel would have meant more iron bombs, but they didn’t have the bits. Still 21 seemed to do the trick.
That would explain it perfectly…if the DB605 had master and slave rods but I’m 99% certain that it doesn’t.
The difference also cannot be explained by pressures in the induction system since compression ratio is only a factor of the swept-volume and the clearance-volume of an engine.
Since the bore and stroke of the two banks are identical the clearance-volume of one bank of cylinders must be different.
The question is why?
I agree with you on the master/slave rods, however the compression ratio , whilst being set as you say is a component of the mean indicated pressure in the combustion chamber. That is altered by increased pressure in the manifold. That is why “blown” engines (be it turbo or super) have a lower compression ration than a normally aspirated one.
I also think back to when the Shack was soldiering on well past its sell by date. Luckily its safety record was unblemished by the time it finally went out of service at least as far as AEW (though I am sure the RAF lost several ASW examples etc I don’t recall any crashes quite like the Afghanistan one that befell the Nimrod).
Don’t even mention the Lightning as regards crashes. An appalling record of death. They go on about the F104 but our Lightning was almost as bad. One of the last was that nice chap Thompson who I saw display at Mildenhall only to learn of his loss over the sea a few weeks later. Have a vid of the MAF display off TV and on my mate’s camcorder… now if only I can get motivated to make a clip and post it somewhere.
XF710 was a notable accident with a Shack that resulted in a Cat 5 a/c. Apiston in no3 engine failed causing a fire which burnt the a/c pretty much to a cinder. Fortunately there was no loss of life.
Indeed the Lightnings were somewhat accident prone, 74 were lost in RAF service. In the short time that I served at Binbrook (10 months) there were two landing accidents. XS899 sheared off it’s nose leg after a heavy landing and XR752, well he just landed. Pity about the lack of three greens for his u/c.
Hence one of the better wind ups on here when we referred to the engine in my Rearwin as being either an 8-cylinder single row or twelve two row! There apparently was a six done by someone but it was not successful (No? really???). I know of single, two and four row but are there any three row?
I think it might have been a French manfacturer that made a 6 cylinder. I have actually seen a photo in my dim and distant past. Yes, I had to count ém twice just to be sure. I have not come across a 3 bank radial, but I have seen a straight 8 (Rolls Royce block in a Leyland recovery vehicle), it was very smooth.
I must admit that there are indeed maintenance problems with the Nimrods ( as there always are when you are desperately waiting for a replacement), I did find some of the “facts” to be less than credible. Granted, the airframes are old, certain fault that were never accounted for are rearing their ugly heads and of course spares allocation will remain a head-ache. These problems have been faced on many other a/c in the RAF, The Lghtning and the Victor to name but two had similar problems. There has obviously been alot of cost-cutting and I think that maybe they’ve tried to shave a little too much off the fleet and not thought of the consequences. That’s not new either btw.
I was kinda vaguely aware the Hercules was an odd number of cylinders, but would have to have lucked in to get the right number. And as for Wikipedia, I fully support your point, but (so far) I’m finding it not too bad on simple factual stuff (I know, I know, someone will point out …) it’s the curly why’s and wherefore’s that are a magnet for the opinionated.
So are we saying 2 plugs per cylinder for the Herc? 112 in total?
cheers D
In general a radial engine has an odd number of cylinders per bank. If it doesn’t, you’ll feel when it’s running.
Are there any victors that aren’t effectively life expired? the only one i could think of would be the one you guys are talking about. ive been told that the two live ones are life expired.
just wondering 😀
The K2’s are all around 130 FI units, so XH648 is a better bet fatigue-wise just a poorer choice engine and systems-wise.
The CAA are not as bad as people make out, the rules are there for every ones safety and if the criteria can be met then flying a jet in private hands is possible, sadly the CAA are not yet ready to let a private individual fly an ex millitary mach 2+ jet with afterburners in the UK, also the accident record for the Lightning in service is considered quite poor, to the CAA the risk is just not worth it.
Regards,
John.
Indeed, in the short time I worked on them (10 months) there were two landing accidents at Binbrook and one had returned to RAF Dogger bank a short while before my posting.
I’m sure this has cropped up before, but I can’t find it.
I understand there are products out there which fill the tyres of static display aircraft with a kind of foam which takes a lot of the strain off the tyres.
Can anyone elaborate on this or point me in the right direction?
Thanks,
Roy.
Builders expanding foam?
As I said, a magnifying glass to check the wiring, common sense on the hydrualics, Hmm donuts. Engines well now thats dead easy. Only problems are Cosford and engines. Theory is DEAD easy, practicalities is another story. Bex
I’m sure there are a few Olympus 593’s around that you could shoe-horn into the airframe.
I don’t know how major the differences were but the sole B.2 was stressed for low-level work and it may have been possible to convert the existing fleet. Many of the Victor and Vulcan B.2s were upgrades from B.1s.
I don’t know about the Vulcans but the Victors XH668-675 were converted from B1 to B2, but this was carried out on the production line before they even left the factory. There was no upgrade of existing airframes. The changes would have been too much to carry out reasonably.