filmov
tv
Boeing's Propeller 747 - The Never Built 747-500
Показать описание
An incredible never built Boeing 747-500 with propfan engines. It would have an impressive range to go London to Sydney non-stop and be ultra fuel-efficient. Despite all of these advantages, Boeing never chose to follow through with the concept.
In today's video, we will look at what the Boeing 747-500 was, how it improved on the Boeing 747-400, who would have bought it, and ultimately, why it was never built.
You see, the Boeing 747-500 was a design that was going to take advantage of the engine of the future - the prop fan. It was a new take on the jet engine that put used counter-rotating props behind the engine and would bring with it a host of advantages - but this story actually starts with another plane - the Boeing 727.
At the time, Boeing was also redesigning its successful 727 series with the new propfan engine in mind.
The plane was called the Boeing 7J7 and it would have been incredible for the world burned by the fuel crisis. it would have a long-range and unmatched fuel efficiency, especially against rival plane makers.
I've actually done an entire video on the Boeing 7J7 program that you can check out here, needless to say the concept was simultaneous cutting edge, and also a backward step for aviation.
This leads us to the 747-500.
Like the 7J7 program, Boeing needed a successor to the Boeing 747-400, its best selling version yet.
While it had also been working on new large aircraft, N650 and others include a strange partnership with Airbus, it was also flirting with the idea of taking the propfan engines and slapping it on the Boeing 747. After all, why not scale up the technology and call it a day, in a new engine option way.
Essentially, making a double-decker jet with propeller engines in the early 90s.
let's talk specifics. This 747-500 model would have a range of 8,700 nautical miles or around 16,000 km. This range would have made it perfect for routes such as LHR-SYD, JFK-SYD, EWR-SIN and LAX-SIN and would have been the 777-8X of its time and could have possibly been bought by airlines such as Qantas and Singapore. By comparison, the 747-400 could only 7,670 nmi 14,200 km. Boeing felt that the program was very doable, cheap to build, and will result in approximately 10% reduced costs on a seat-mile basis compared to the 747-400.
The plane would also have a new wing-like the Boeing 777, and a stretched upper deck to accommodate 500 passengers and all their luggage.
Boeing planned to introduce this aircraft by the 1990s and would bring the world ever more connected with new routes and impressive aircraft performance. Boeing was targeting British Airways, Cathay Pacific, Japan Airlines, Qantas, Lufthansa, All Nippon Airways, and Singapore International Airlines, as a launch customer.
This plane would have been the 747-8 of the 90s!
Let's start with the engines. The engines were loud, and despite efforts by general electric and others, airports and airlines were not convinced that they would be able to make it quieter than a jet engine. Plus a new engine type would insert lots of unknowns into the design and development of the aircraft - such as maintenance issues, spare parts and more. Ultimately, GE and other designers of the engine type decided to not go ahead with the production of the engine, and this was a major reason why the aircraft never went ahead.
Boeing would then re-evaluate the design to include one with other engines, the normal turbojets, but there were some other issues.
This plane was created in mind for long haul routes, for operators like Qantas and Singapore. But these two carriers don't make a market for a new long-haul type - they would only at max order 10-20 each, leaving Boeing holding a massive development bill. Boeing had tried to enter this market before with the Boeing 747SP, a long-range version of the 747-100. They only sold 45 of them, to carriers like Iran Air and Pan Am - which by this time, we're not in the market for any new jumbo jet aircraft. In fact, no one needed it, the market was saturated by hundreds of 747-400s, and there were plenty of twin-jet designs like the 767 and A300 slowly encroaching on the market.
In 1985, the ETOPS rules were relaxed, allowing twin-jet aircraft to fly over oceans. Airlines could now fly smaller equipment (767 or A300/A310) and sell all the seats or fly two daily round trips - they would have struggled to sell the same on the 747-500. With ETOPS expanded yet again in 1988, the need for a high capacity quad jet to fly long-range simply vanished. Airlines could still use it to fly Australia to South America - but this market was limited indeed.
With no market for the type, and no engine, Boeing decided to pass on the -easy to make and sell, 747-500, and instead proceed to build the later 747X design. Which, as I mentioned, you can see on the channel right here, right now.
In today's video, we will look at what the Boeing 747-500 was, how it improved on the Boeing 747-400, who would have bought it, and ultimately, why it was never built.
You see, the Boeing 747-500 was a design that was going to take advantage of the engine of the future - the prop fan. It was a new take on the jet engine that put used counter-rotating props behind the engine and would bring with it a host of advantages - but this story actually starts with another plane - the Boeing 727.
At the time, Boeing was also redesigning its successful 727 series with the new propfan engine in mind.
The plane was called the Boeing 7J7 and it would have been incredible for the world burned by the fuel crisis. it would have a long-range and unmatched fuel efficiency, especially against rival plane makers.
I've actually done an entire video on the Boeing 7J7 program that you can check out here, needless to say the concept was simultaneous cutting edge, and also a backward step for aviation.
This leads us to the 747-500.
Like the 7J7 program, Boeing needed a successor to the Boeing 747-400, its best selling version yet.
While it had also been working on new large aircraft, N650 and others include a strange partnership with Airbus, it was also flirting with the idea of taking the propfan engines and slapping it on the Boeing 747. After all, why not scale up the technology and call it a day, in a new engine option way.
Essentially, making a double-decker jet with propeller engines in the early 90s.
let's talk specifics. This 747-500 model would have a range of 8,700 nautical miles or around 16,000 km. This range would have made it perfect for routes such as LHR-SYD, JFK-SYD, EWR-SIN and LAX-SIN and would have been the 777-8X of its time and could have possibly been bought by airlines such as Qantas and Singapore. By comparison, the 747-400 could only 7,670 nmi 14,200 km. Boeing felt that the program was very doable, cheap to build, and will result in approximately 10% reduced costs on a seat-mile basis compared to the 747-400.
The plane would also have a new wing-like the Boeing 777, and a stretched upper deck to accommodate 500 passengers and all their luggage.
Boeing planned to introduce this aircraft by the 1990s and would bring the world ever more connected with new routes and impressive aircraft performance. Boeing was targeting British Airways, Cathay Pacific, Japan Airlines, Qantas, Lufthansa, All Nippon Airways, and Singapore International Airlines, as a launch customer.
This plane would have been the 747-8 of the 90s!
Let's start with the engines. The engines were loud, and despite efforts by general electric and others, airports and airlines were not convinced that they would be able to make it quieter than a jet engine. Plus a new engine type would insert lots of unknowns into the design and development of the aircraft - such as maintenance issues, spare parts and more. Ultimately, GE and other designers of the engine type decided to not go ahead with the production of the engine, and this was a major reason why the aircraft never went ahead.
Boeing would then re-evaluate the design to include one with other engines, the normal turbojets, but there were some other issues.
This plane was created in mind for long haul routes, for operators like Qantas and Singapore. But these two carriers don't make a market for a new long-haul type - they would only at max order 10-20 each, leaving Boeing holding a massive development bill. Boeing had tried to enter this market before with the Boeing 747SP, a long-range version of the 747-100. They only sold 45 of them, to carriers like Iran Air and Pan Am - which by this time, we're not in the market for any new jumbo jet aircraft. In fact, no one needed it, the market was saturated by hundreds of 747-400s, and there were plenty of twin-jet designs like the 767 and A300 slowly encroaching on the market.
In 1985, the ETOPS rules were relaxed, allowing twin-jet aircraft to fly over oceans. Airlines could now fly smaller equipment (767 or A300/A310) and sell all the seats or fly two daily round trips - they would have struggled to sell the same on the 747-500. With ETOPS expanded yet again in 1988, the need for a high capacity quad jet to fly long-range simply vanished. Airlines could still use it to fly Australia to South America - but this market was limited indeed.
With no market for the type, and no engine, Boeing decided to pass on the -easy to make and sell, 747-500, and instead proceed to build the later 747X design. Which, as I mentioned, you can see on the channel right here, right now.
0:08:50
Boeing's Propeller 747 - The Never Built 747-500
0:00:29
How Powerful Airplane Engine Thrust is #shorts
0:00:09
What's better, the 747 or the Aviation Traders Carvair? #aviation #airplanes #aircraft #boeing7...
0:00:13
737-500 Continental ☠️ #boeingaircraft #b737 #boeing #7375 #continental #shorts #avgeek #aviation...
0:00:17
If other airlines owned the Boeing 747!
0:00:20
Last 747 vs the First 747🤩 #planes #aviation #flight #avgeeks #airlines #pilot #shorts #747
0:00:30
The First Plane Was Made In 1903. Here's What Happened Next
0:00:16
Boeing 747 in 1980s VS Now | #airplane #boeing #aviation
0:00:29
What Would Happen If You Get Sucked Into a Jet Engine? 😨
0:00:50
The Shocking Power of a Plane's Engine #vizonvoice #shorts #plane
0:00:13
737-500 Continental ☠️ #boeingaircraft #b737 #boeing #7375 #continental #shorts #avgeek #aviation...
0:00:22
These Planes Aren't That Old- #aviation #plane #avgeeks #747 #concorde #landing #737
0:00:24
The last ever 747 built... 😥 #aviation #aviationstories #Boeing #planespotting
0:00:35
This is One Huge Jumbo Jet! #aviation #boeing #747
0:00:23
The incredible engineering of a jet engine ✈️
0:00:22
GE-90 aircraft engine model#model #toys #diy
0:00:20
Boeing 747 Fan Blades #aviation #shorts
0:00:19
Boeing 737 MAX VERTICAL TAKEOFF ✈️ #aviationdaily #automobile #aviation #airplane #aviationgeek
0:00:21
Aircraft Engine Assemble #process #engine #aviation #parts #rollsroyce #propeller #manufacturing
0:00:23
Airbus vs. Boeing: 2 Main Differences #realflightsimulator #aviation #aircraft #airbus #boeing
0:00:15
GIANT Transport PLANE Opening The Cargo Hold #Shorts
0:00:55
The guy got sucked into an airplane turbine, but he survived😱 #movie #series
0:00:11
AN-225 thinking it’s the biggest plane… | #aviation #planes #avgeek #an225 #boeing #meme #fyp
0:00:21
B-29 nose gear extension from the wheel well | B-29 “Doc”
Комментарии