Boeing 707s were developed in the early 1950s and hundreds of are still flying today. I would imagine that at least one line of code from them original software is still running on these planes.
That code is not only old, but it also is a life critical function.
-Kitplane01
The summary says "America's entire B-2 stealth bomber fleet, which has played a crucial part in all major US conflicts since 1989..." Which conflict did the B-2 play a crucial role in? It has dropped a few bombs a few times, and those attacks could have been carried out by other means at lower cost. The B-2 has not been "crucial" in any war ever. It has not even been "important".
The plane is a fine technology demonstrator, but not an important weapon system.
Unfortunately, all of the satellite systems suffer from the same source of inaccuracy... the atmosphere. so if one shows you slighty too far west, likely they all for the same reason.
Yes, having a combined mode reciever will help, but not as much as you might think.
Suprisingly, the best thing to augment GPS-like systems would be LORAN. Enhanced Loran is at least as precise as GPS, much harder to jam, and most importanly suffers from different errors than GPS. Enhanced Loran can even be used to send GPS correction data via it's data channel.
This has nothing to do with how many incidents there are, and everything to do with the court system. The courts have demonstrated that they are quite willing to bankrupt an aircraft manufacturer when an airplane they produce is involved in an incident, even if that incident is shown to be negligence or incompetence on the part of the pilots flying at the time. Just go google for 'cessna 185 lawsuit' and you will find lots of details.
Yes, the personal aviation industry was driven out of business by liability issues. Yes, Cessna even stopped making small airplanes because of the liability issues.
But that has nothing to do with commuter airliners. Private airplanes occasionally crash and commuter airliners almost never do.
These are two different markets with two different sets of economics. You can convince me by providing a citation involving commuter airliners. Cessna references are just not relevent.
ofc, the final proof is in the pudding. During the early 1980's the entire fleet of commercially operated planes in the usa was 'made in the usa'. Take a look today, in terms of dollars, the market share held by embraer and bombardier is on par with that of boeing and airbus. there are no american made 'equivalent' options for aircraft buyers.
Hmm. Do you also think that textile manufacturers have left the US because of liability, or is that maybe because of production cost advanatges in the third world.
Commuter airliner maunfacturing has left the US because Boeing cannot compete with the foreigners. Partially this is because Boeing corperate culture is focused on BIG airplanes and military contracts, and partially because the union workers want more than the Brazilian workers.
Commuter airliner manufacturering in Europe has also almost halted. Again, it's not liability, it's competativeness.
I really think you need to learn more in this area.
The reason there are no american manufacturers
left in the sub 100 passenger jet category is
because of the product liability lawsuits in the
usa.
This is just completely wrong. There are *very* few commuter airline crashes in the USA. Since August 1997 there have been three commuter airline crashes in the US. They are listed below.
The average is less than one commuter airline crash per two years. It's not a huge liability problem, and the foreign corporations that market planes in the US pay this. The problem for Boeing et. al. is manufacuring cost, not liability
21 May 2000; Executive Airlines BAe Jetstream 31; near Wilkes-Barre, PA:
8 January 2003; US Airways Express Beech 1900; Charlotte, NC:
19 October 2004; AmericanConnection (Corporate Airlines) BAe Jetstream 32; near Kirksville, MO:
These schools that use CS as the degree for people who want to research computers, and who use computer engineering as the major for people who want to program...
That's really really weird. I've look at lots of curricula, and I've never seen that. Can you offer an example.
And, just so the casual reader is not confused
1) CS is for people who like to program
2) MIS and CIS are pretty much not.
I'm a Professsor of CS. So I feel qualified to answer.
CIS: A Business degree with computers in it. You will also learn marketing and accounting. You need to like business for this degree. Many people think this is the easiest of the degrees.
Computer Engineering: This is a degree for hardware people. This is a degree for serious geeks who like math and logic, but don't want to become programmers.
CS: This is a degree for people who want to program. We teach algorithms and writing code. We write programs.
Just so we're clear, CS is the coolest of the choices!
Slashdot Mirror
Boeing 707s were developed in the early 1950s and hundreds of are still flying today. I would imagine that at least one line of code from them original software is still running on these planes. That code is not only old, but it also is a life critical function. -Kitplane01
The summary says "America's entire B-2 stealth bomber fleet, which has played a crucial part in all major US conflicts since 1989 ..." Which conflict did the B-2 play a crucial role in? It has dropped a few bombs a few times, and those attacks could have been carried out by other means at lower cost. The B-2 has not been "crucial" in any war ever. It has not even been "important".
The plane is a fine technology demonstrator, but not an important weapon system.
Unfortunately, all of the satellite systems suffer from the same source of inaccuracy ... the atmosphere. so if one shows you slighty too far west, likely they all for the same reason.
Yes, having a combined mode reciever will help, but not as much as you might think.
Suprisingly, the best thing to augment GPS-like systems would be LORAN. Enhanced Loran is at least as precise as GPS, much harder to jam, and most importanly suffers from different errors than GPS. Enhanced Loran can even be used to send GPS correction data via it's data channel.
21 May 2000; Executive Airlines BAe Jetstream 31; near Wilkes-Barre, PA:
8 January 2003; US Airways Express Beech 1900; Charlotte, NC:
19 October 2004; AmericanConnection (Corporate Airlines) BAe Jetstream 32; near Kirksville, MO:
These schools that use CS as the degree for people who want to research computers, and who use computer engineering as the major for people who want to program...
That's really really weird. I've look at lots of curricula, and I've never seen that. Can you offer an example.
And, just so the casual reader is not confused
1) CS is for people who like to program
2) MIS and CIS are pretty much not.
-Kitplane01
I'm a Professsor of CS. So I feel qualified to answer.
CIS: A Business degree with computers in it. You will also learn marketing and accounting. You need to like business for this degree. Many people think this is the easiest of the degrees.
Computer Engineering: This is a degree for hardware people. This is a degree for serious geeks who like math and logic, but don't want to become programmers.
CS: This is a degree for people who want to program. We teach algorithms and writing code. We write programs.
Just so we're clear, CS is the coolest of the choices!
-Kitplane01