Rolls-Royce cars are made by BMW
Bentley cars are made by Volkswagen
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Winnie would not have liked that.
Winnie whom? confused
Volkswagen bought the UK Rolls-Royce car manufactory and Bentley licence, but spectacularly didnât realise they hadnât also bought the rights to use the Rolls-Royce name.
RR failed to mention this during sale negotiations, and VW were spitting rivets when they discovered their error.
When the RR licence expired, BMW bought it and a half share in a RR/BMW aerospace manufactory in Germany for many tens of millions of pounds.
BMW then built a brand new manufactory in England to build Rolls-Royce cars whilst VW continued to make Bentleys in the old RR Crewe manufactory.
In and around Bristol, the Rolls-Royce aero-engine facility is colloquially referred to as the Rolls site.
In and around Derby, the Rolls-Royce aero-engine facility is colloquially known as the Royceâs site.
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Sir Winston Leonard Spencer Churchill
Here in Oz daylight saving finishes at 3am on the first Sunday of April, which in 2023 is April 2 â this weekend.So clocks go back but only in New South Wales, Victoria, the ACT, Tasmania and South Australia.And not in Queensland, the Northern Territory and Western Australia because they didnât bother to put them forward in the first place.
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The term daylight saving has never made sense to me. Itâs not as if someone is bottling it to use later when itâs dark.
Changing the clocks twice a year has never made sense to me either. It doesnât change the amount of useable daylight at all.
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The yellow diamond shapes in a fast jet aircraft exhaust flame are supersonic shockwaves.
The speed of sound in any fluid varies with temperature.
The exhaust gas leaves the jet engine nozzle at supersonic speed then immediately begins to cool and slow down to subsonic speed.
As the temperature drops so does the speed of sound to the point where the jet flame is once again travelling at supersonic speed, causing a shockwave to form.
This process is repeated as the gas temperature and speed continues to reduce, causing new shockwaves every time the speed of sound is reached until the gas velocity finally becomes permanently subsonic.
You can just see the first three diamond shocks in the exhaust of this RB199 Mk 104E engine used in the UK EAP (Experimental Aircraft Programme) and the Eurofighter Typhoon.
Toast anyone?
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I also heard that to make a jet engine more efficient the exhaust outlet should be reduced with altitude, because the higher you go, the less thrust you need�
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Variable exhaust nozzles have been around for decades for all sorts of reasons. Open wide to spoil the thrust and reduce speed for taxiing, incrementally opening to keep the jet-pipe pressure constant in reheat as more fuel is pumped in, compressor surge relief, weapon firing, closing down to increase thrust and aircraft velocity much like you do with a hose pipe, opening up at high altitude where there is less air/oxygen, opening up to relight following a flameout, and much much more.
You are the sort of guy who would have been employed for your electronical skills when designing and improving analogue engine and aircraft control units circuits.
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Aircraft âBlack Boxâ flight/crash recorders are painted ⊠fluorescent orange.
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Jet aircraft use 400 Hz. Conventual electrical systems are mostly 50 Hz and 60 Hz.
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Usually 115v AC, along with 28v DC supplied from batteries, ground start equipment, or AC/DC inverters.
I believe the Navy also use 400Hz. We did some projects for Boeing for aircraft construction⊠These were 1200Hz if I remember correctly and high performance - full speed to zero within one rev and within degree of accuracy.
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4,500 year old Egyptian dress that was painstakingly reassembled from approximately 7,000 beads which were found in an undisturbed tomb in Giza, Egypt.
The dress is thought to have belonged to a female contemporary of King Khufu (2589â2566 BC). The original strings had disintegrated over the years but the beads were still in their original position, which allowed for an accurate reconstruction.
The color of the beads had faded, but they were originally blue and turquoise. The dress was initially believed to have been worn for a dancing ritual but after it was assembled, the heavy weight suggested otherwise. Archaeologists now believe it may have been worn during funerals.
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The heart of a blue whale, which can weigh in excess of 1,300 lbs (590 kg) and is the size of a small car. The gigantic heart beats 8 to 10 times per minute and each heartbeat can be heard from over 2 miles (3.2 km) away.
Their arteries are so large that a full adult size human can swim through them. At birth, a baby blue whale is already 25 ft long (the size of an adult killer whale) and can drink up to 150 gallons (568 liters) of milk a day and gain as much as 200 lbs (90 kg) per day in its first year. They feed almost exclusively on krill, which are small, shrimp like invertebrates that are on average only 1 or 2 centimeters long.
They eat 4 to 6 tons of krill a day. As an adult, they can grow up to a 110 ft (33 m) and weigh up to 180 tons. I find it so interesting that throughout history, earth has been home to some of the biggest animals, but the biggest one of them all happens to exist in our timeline, swimming right now in the deep ocean.
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Invented by Australian David Warren.No one was interested at first in Australia or the USA.But the UK were.I think particularly after the series of Comet crashes.
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Firearms are now the number one cause of death for children(1-19) in the United States,
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Horrifying but sadly not unexpected.
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Plants can talk.(Iâve always suspected it and do talk to them)
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Part of Washington State, USA, can only be accessed from mainland USA by road from Canada.
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