"nightjar .uk.com>"
The things I listed all allow higher revs, and hence more power per litre. Oval pistons are advantageous because you can reduce the piston weight whilst still maintaining valce clearance, chamber capacity and compression ratio. They were banned in F1 (along with ceramic pistons) because they'd be hitting 25000 rpm and 1250 bhp by now if they hadn't.
AFAIR there is a black box and engine sensor option available for any Cessna doing commercial work.
What has Duxford got to do with the pilots of the Royal Air Force Battle Of Britain Memorial Flight?
Admittedly, Duxford has a lot of civil pilots flying into and out of it....But so does just about every civil airfield in the country....What's your point?....
I live within a 15/20 minute drive of the US airbases, and I'm literally spitting distance from the RAF's largest frontline airbase RAF Marham...Yet I don't think I've ever witnessed any infractions of the rules....
It's only permitted in a few designated areas, and then, only at certain times....In all other airspace, they must adhere to the same rules and regs as every other pilot....
The fact that they are allowed to practise tactical flight is reflected in the fact that our air force is the envy of the rest of the world (although, you'd wonder why if you could see them on a Thursday night in the naafi bop)....
Merlins. Mmmm, nice.
Because the Duxford air show is probably the biggest display of these planes.
It's a show field, not an airstrip. The pilots perform risky maneovures over other people's land.
Never seen an RAF pilot break the rules near base but see the USAF do it all the time. Just before the first Iraq war the Galaxies were so heavily laden they were below the tops of the highest buildings in villages miles away from the airfield.
"A few designated areas" includes 90% of Scotland, virtually all of Cumbria and the Lake District, a lot of the Pennines, most of East Anglia and anywhere within 100m of the sea-shore. Hardly a small amount. And I've never met a "certain times" restriction either, unless you mean not on Christmas day.
I found in California (and elsewhere if the airport bars are anything to go by) that there are a couple of decent Hefewizen beers available almost anywhere... as with some interesting looking beers by, as you say, specialist brewaries, although not being a great beer drinker, I have yet to sample.
Well, that was the effect and aftermath of Prohibition... every small brewery had been closed down (except for the few illegal backwoods farm operations) so when beer production was eventually sanctioned only 'Big Business' could make a foothold into the market.
True. Beer in Asia is not an art form. But in a warm humid climate... something else matters... hand me a Tiger beer.
Axel
In article , Mike writes
And what would be wrong with that?.
Apart from calling the car an aeroplane?>>>>....
In article , Mike writes
Yep and round here. Just as well they did this around 1939 isn't it?..
In article , Mike writes
What's yours?........
So complain in writing to Duxford. Get up a petition to have it stopped....
Parallax...
An example of parallax making an aircraft appear lower than it actually is can be seen here
Actually, the airspace in East Anglia is quite closely controlled when it comes to military air traffic....About the only place where there are no restrictions is over the Muckleborough Museum, as it's used for targetting and recce training....
Quoted from the MOD and RAF websites
For daytime operations, the UKLFS is now divided into 18 Low Flying Areas. These include five Dedicated User Areas, one of which is set aside for use by HQ Northern Ireland and in which most of the activity is of an operational, rather than training, nature.
A completely different system exists for low flying at night,
Erm, I don't think so. Pretty much all the UK is available for low flying, defined as less than 2,000' Minimum Separation Distance (MSD, the distance from the aircraft to ground, water or structure). The lower MSD limit varies by aircraft type, fast jets shouldn't go below
250' MSD, helos can go to 0'... Note that this applies over most of the UK, only major conurbations and industrial areas are excluded.There are three Tactical Training Areas these allow lower limits 100' for fast jets and 150' for transports for example. The TTAs are controlled on a time basis.
Pretty damn sure the fast jets come over our chimmney pots at less than 250' though. We are not in LFA20T but just outside the bottom edge of LFA13, which I have sneaky feeling may now be a TTA of some sort. Couple of helos flew past going up the hill level the roof top the other day, chinocks are normally below us in the valley, though we did have 6 thump and rattle the windows a few months back at about
500' distant and around 60' AGL, ie as they banked around the bottom rotor tip was about the same height above the ground as the rotor dia... Don't like the Apaches, they look fare to mean and nasty.Yep they have to practice, and to be honest the noise from a fast jet may be rather loud just after it passes but generally you hear the scream first before the roar. But it doesn't last long, a handfull of seconds at most. The constant drone of a motorway is much worse IMHO.
recorded at 475' AGL but how accurate and to what resolution is its ground map?
And the 250' MSD is sphere(*) around the aircraft into which nothing should penetrate, it's not the distance from the aircraft to a point vertically below the it.
(*) Presumably aircraft shaped rather than a true sphere...
Again, the effects of Parallax will make it look lower than it is....If you are on ground level, and you are looking up at a roofline which is higher than your eyes, and you can see an aircraft flying along behind teh building, it must be higher still otherwise you would not see it.... The result of this is that the aircraft appears to be at roof level, when in fact it is not.....
If your eyes are at 6 feet above ground level, the roof line is 30 feet above ground level and you are stood 60 feet away from the building, you must look up at an angle of 26.6
So if you see an aircraft apparently flying along at roof level, and it's say 600 feet beyond the roofline (200 yards)....That aircraft is actually flying at 330 feet....Even though from your perspective, it's barely visible above the rooftop....
It's simple geometry....
Having lived for quite some time within the airfield confines, and also just outside the fence, I can say with some degree of confidence that you get used to the noise very quickly, and pretty soon, you don't even notice it....
Instead of banning them they impose a flight rule which prevents them from taking off or landing on most UK runways :-)
Tony
stopped....
A lot of people have been there. No success - so far.
Parallax cannot explain how one saw the top of the wing surface, can it.
Nonsense. There is constant low flying over the whole of the Fens out into the North sea on whatever intercept course they are on. Nothing controlled about that.
So I named only six of them. Still covers most of the UK
Sure is - they fly even lower !
Do you know just how much this low flying costs the UK's farming economy. When we might have been likely to fight (and lose) a war with Russia it was justified but I don't think Al Queda will be flying in in Migs. Time for this to stop.
In which case our views stand no chance of intersecting. I trust you feel the same about all spectator sports, hobbies and ceremonies.
Maybe not, but any number of other factors would explain it....
For example, the attitude of the aircraft....If it was banking at the time, you would have clearly seen the top of its wings....
Or it might have been something even more simple and obvious....The C5 Galaxy, like most heavy transporters, has Anhedral wings.... This means that unlike say a Boeing 737, which has Dihedral wings, where they are mounted at the bottom of the fuselage, and sweep upwards as they spread out....The C5 Galaxy, and it's like have wings that are mounted at the top of the fuselage, like a shoulder, and slope downwards..... This would explain why you could see the top surface of the wing....
Example of dihedral (sloping upwards)
No you wouldn't. Most of the UK is not governed by any lower limit height rules whatsoever. Aircraft must maintain a 500 foot clearance (vertically or horizontally) from any person or structure except when landing or taking off, and be able to glide clear of the same in the event of an engine failure. Which means that flying inches from the ground is perfectly legal over huge areas of the country.
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