User546
The Ultimate Show Stopper
- Joined
- Jan 24, 2004
- Posts
- 1,958
[font=ARIAL, Helvetica, Geneva][font=ARIAL, Helvetica, Geneva][font=ARIAL,]Ugh, these 13 year olds over on the Airliners Net forums kill me sometimes. [/font][/font][/font][font=ARIAL, Helvetica, Geneva][font=ARIAL, Helvetica, Geneva][font=ARIAL,][/font][/font][/font][font=ARIAL, Helvetica, Geneva][font=ARIAL, Helvetica, Geneva][font=ARIAL,] Feel free to discuss amongst ourselves the problems with the solutions presented below! [/font][/font][/font]
[font=ARIAL, Helvetica, Geneva][font=ARIAL, Helvetica, Geneva][font=ARIAL,]
http://www.airliners.net/discussions/tech_ops/read.main/119398/
Hi all,
I came up with the idea of airplanes with the engines mounted on top the wings, rather than having them under the wings. But, as you all know, all civil airplanes have them either on the tail or below the wings. So, as the title says, the question is, what are the main reasons for not having the engines mounted over the wings?
I see some advantages. By having them over the wing, you can put a bigger engine on the plane, since you don't need space between the engine and the ground. This way, the landing gear could be shorter also, thus saving weight and space.
About the bigger engines: it's not that I like airplanes to have huge engines; I read that the engines of the next generation of the A320/B737 planes, in order to be more fuel-efficient, needed to have more diameter, but there is no space for them under their wings! Thinking in solutions, one of the easiest was to put them over the wings. Of course I had more futuristic ideas, but maybe too difficult to make (yes, I'm always thinking on new things for airplanes LOL)
I do however see some disadvantages: maintenance costs would be higher due to the difficulty to access the engine. There might be too noise issues, for the passengers and noise stress for the frame too. Also aerodynamic problems, I don't know how the air would flow. And psychological, imagine seeing the engine over the wing from the window!
Oh man, I listed more troubles than advantages! But maybe the disadvantages are not an issue, and there are more advantages. What do you think? You engineers out there sure know about this, do you think it's an unsuitable idea?
I know that there are some planes with engines over the wings, such as the Beriev Be-200. But that's a firefighter, so it actually needs its jets as far as possible from water. Wasn't there a Focke-Wulf also? Note that I'm talking about commercial aircraft and jet engines.
I'm sure I had more things in mind when I was going to start writing this post, I'll add them up later if I remember them! Feel free to comment anything!
Regards,
Keta[/font][/font][/font]
[font=ARIAL, Helvetica, Geneva][font=ARIAL, Helvetica, Geneva][font=ARIAL,]
http://www.airliners.net/discussions/tech_ops/read.main/119398/
Hi all,
I came up with the idea of airplanes with the engines mounted on top the wings, rather than having them under the wings. But, as you all know, all civil airplanes have them either on the tail or below the wings. So, as the title says, the question is, what are the main reasons for not having the engines mounted over the wings?
I see some advantages. By having them over the wing, you can put a bigger engine on the plane, since you don't need space between the engine and the ground. This way, the landing gear could be shorter also, thus saving weight and space.
About the bigger engines: it's not that I like airplanes to have huge engines; I read that the engines of the next generation of the A320/B737 planes, in order to be more fuel-efficient, needed to have more diameter, but there is no space for them under their wings! Thinking in solutions, one of the easiest was to put them over the wings. Of course I had more futuristic ideas, but maybe too difficult to make (yes, I'm always thinking on new things for airplanes LOL)
I do however see some disadvantages: maintenance costs would be higher due to the difficulty to access the engine. There might be too noise issues, for the passengers and noise stress for the frame too. Also aerodynamic problems, I don't know how the air would flow. And psychological, imagine seeing the engine over the wing from the window!
Oh man, I listed more troubles than advantages! But maybe the disadvantages are not an issue, and there are more advantages. What do you think? You engineers out there sure know about this, do you think it's an unsuitable idea?
I know that there are some planes with engines over the wings, such as the Beriev Be-200. But that's a firefighter, so it actually needs its jets as far as possible from water. Wasn't there a Focke-Wulf also? Note that I'm talking about commercial aircraft and jet engines.
I'm sure I had more things in mind when I was going to start writing this post, I'll add them up later if I remember them! Feel free to comment anything!
Regards,
Keta[/font][/font][/font]