Dublin Area Rapid Transport.
The DART was the Irish Republics first attempt at thie own electric railways, initially running from Bray in north Co. Wicklow to Howth Co. Dublin. The first trains were West-German in make Linke-Hofmann-Busch 2 car units built in 1983 at Saltzgitter. These original 40 cars were upgraded by Seimens in Liepzig, Germany, in 2008, apart from sets 8110 and 8136 that were destroyed by a fire at the Fairview depot in 2001 and scrapped.
The Class 8100 have now been joined by the new Class 8200 built in Spain by GEC-Alstrom at Santa Perpetua de Mogoda. Both use the 1500 V Dc overhead. there is a small variation in weights, but speed remains at 62mph.
The network has greatly expanded over the years with an extention to Greystones and to Malahide. the latest additions to the ever need for increasing fleet has come from Japan. The 8500, 8510 and 8520 all built by Tokyu car corperation, Yokohama. Some of these newer vehicles have not lived up to expectations with many breakdown problems, All are 4-car units with a speed of 68 mph to slightly above.
Showing posts with label four. Show all posts
Showing posts with label four. Show all posts
Thursday, 7 April 2016
Thursday, 22 May 2014
Mercedez.
Jeeps and four-wheel drive.
For a long time the British landrover series has been seen as ruling the world market in the four by four. Nearly every country in the world produces their own versions of this type of essential off road vehicle and it is the German Mercedez company that over the last thirty years or so have taken the market of many other well know names.
This week we will just have this introduction to the German manufacturer and its other famous off road type the Unimog truck. Please check previous articles on Unimog and 4X4 for further references.
The four by four is used for all off road traffic from farming, search and rescue, police and fire services to ambulances and military activities. Reliable engines and gradient capability along with hauling heavy loads must be the essential elements over that of immediate comfort. Here we are not really dealing with a civilian vehicle like others. many other 4X4 contain many gimmicks to sell them to the general public.
For a long time the British landrover series has been seen as ruling the world market in the four by four. Nearly every country in the world produces their own versions of this type of essential off road vehicle and it is the German Mercedez company that over the last thirty years or so have taken the market of many other well know names.
This week we will just have this introduction to the German manufacturer and its other famous off road type the Unimog truck. Please check previous articles on Unimog and 4X4 for further references.
The four by four is used for all off road traffic from farming, search and rescue, police and fire services to ambulances and military activities. Reliable engines and gradient capability along with hauling heavy loads must be the essential elements over that of immediate comfort. Here we are not really dealing with a civilian vehicle like others. many other 4X4 contain many gimmicks to sell them to the general public.
Thursday, 27 March 2014
The Biz Jets. Part-Two.
Enter the Jet Age.
With the end of World-War II (1939-45), the development of the jet engine was going to change aviation for ever. It was the United States of America, Britain, France and the Soviet Union that were going to lead the way in fighter jet development, but this also lead to jet airliners such as the De Havilland Comet and Sud-Est S.E.210 Caravelle.
The very rich stilt wanted to enjoy the flying experiences of the years prior to the second world war and the comfort and private factor. It was the Americans who where the first to cotton on to this market, with the Lockheed (C-140) Jetstar and the North American T-39 Sabreliner.
A private jet was for 4 to 20 people, but most have since favoured 4, 8 and 12 seats.
France had developed a 4 seat touring version of its two seat military trainer the Morane-Saulnier M.S.760 Paris, which could be said to be the first private jet in 1956.
With the end of World-War II (1939-45), the development of the jet engine was going to change aviation for ever. It was the United States of America, Britain, France and the Soviet Union that were going to lead the way in fighter jet development, but this also lead to jet airliners such as the De Havilland Comet and Sud-Est S.E.210 Caravelle.
The very rich stilt wanted to enjoy the flying experiences of the years prior to the second world war and the comfort and private factor. It was the Americans who where the first to cotton on to this market, with the Lockheed (C-140) Jetstar and the North American T-39 Sabreliner.
A private jet was for 4 to 20 people, but most have since favoured 4, 8 and 12 seats.
France had developed a 4 seat touring version of its two seat military trainer the Morane-Saulnier M.S.760 Paris, which could be said to be the first private jet in 1956.
Thursday, 13 March 2014
Alternative Concepts.
Why replace the Bicycle?
Do you ever watch those science and tech programmes on you Televisions, ipads, computers and Sat-TV, that show some silly alternatives to the Bicyle?
I have come to the conclusion, that many of these new high-tech inventions could cause one more serious harm to our bodies than improve our health. Many of these alternatives have come to the fore, to encourage us to try and excercise. But then why don't you just get a bike, or a dog and go for a walk!
If we want to be serious then to start with a saddle is perhaps the best idea, from there we can develop a lighter machine. The fold up is perhaps the greatest invention for the bike, then comes those ultra-light racing bikes. But still it retains its basic shape, my challenge to you out there 'great inventors is to improve what you have, while retaining the flexability of what you have.
It will only be time, that will show us what we can do with two wheels, to make it 3-4 or more, but remain a human powered vehicle?
Do you ever watch those science and tech programmes on you Televisions, ipads, computers and Sat-TV, that show some silly alternatives to the Bicyle?
I have come to the conclusion, that many of these new high-tech inventions could cause one more serious harm to our bodies than improve our health. Many of these alternatives have come to the fore, to encourage us to try and excercise. But then why don't you just get a bike, or a dog and go for a walk!
If we want to be serious then to start with a saddle is perhaps the best idea, from there we can develop a lighter machine. The fold up is perhaps the greatest invention for the bike, then comes those ultra-light racing bikes. But still it retains its basic shape, my challenge to you out there 'great inventors is to improve what you have, while retaining the flexability of what you have.
It will only be time, that will show us what we can do with two wheels, to make it 3-4 or more, but remain a human powered vehicle?
Subscribe to:
Posts (Atom)