Aircraft engine Wallpaper
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Aircraft engine Wallpaper
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- Submited:2006-11-20 17:31:39
- File Size:77679
- Resolution:1024x768
- File Format:2
- Category:Aircraft engine
- Downloads:19
- Views:113
- Number of rates:0
- Rating:0.0000
About Aircraft engine
<b>Aircraft engine - picture wallpapers; megawallpapers.org</b> :
The term aircraft engine, for the purposes of this article, refers to reciprocating and rotary internal combustion engines used in aircraft. Jet engines and turboprops are the other common aviation powerplants; while operation differs substantially, the basics here apply to all types.
<b>Engines must be:</b>
lightweight, as a heavy engine decreases the amount of excess power available.small and easily streamlined; large engines with substantial surface area, when installed, create too much drag, wasting fuel and reducing power output.powerful, to overcome the weight and drag of the aircraft.reliable, as losing power in an airplane is a substantially
greater problem than an automobile engine seizing. Aircraft engines
operate at temperature, pressure, and speed extremes, and therefore
need to operate reliably and safely under all these conditions.repairable, to keep the cost of replacement down. Minor repairs are relatively inexpensive.<b>Power:</b> Unlike automobile engines, aircraft engines run at high power
settings for extended periods of time. In general, the engine runs at
maximum power for a few minutes during taking off, then power is
slightly reduced for climb, and then spends the majority of its time at
a cruise setting—typically 65% to 75% of full power. In contrast, a car
engine might spend 20% of its time at 65% power accelerating, followed
by 80% of its time at 20% power while cruising....
<b>Aircraft engine - picture wallpapers; megawallpapers.org</b> :
The term aircraft engine, for the purposes of this article, refers to reciprocating and rotary internal combustion engines used in aircraft. Jet engines and turboprops are the other common aviation powerplants; while operation differs substantially, the basics here apply to all types.
<b>Engines must be:</b>
lightweight, as a heavy engine decreases the amount of excess power available.small and easily streamlined; large engines with substantial surface area, when installed, create too much drag, wasting fuel and reducing power output.powerful, to overcome the weight and drag of the aircraft.reliable, as losing power in an airplane is a substantially
greater problem than an automobile engine seizing. Aircraft engines
operate at temperature, pressure, and speed extremes, and therefore
need to operate reliably and safely under all these conditions.repairable, to keep the cost of replacement down. Minor repairs are relatively inexpensive.<b>Power:</b> Unlike automobile engines, aircraft engines run at high power
settings for extended periods of time. In general, the engine runs at
maximum power for a few minutes during taking off, then power is
slightly reduced for climb, and then spends the majority of its time at
a cruise setting—typically 65% to 75% of full power. In contrast, a car
engine might spend 20% of its time at 65% power accelerating, followed
by 80% of its time at 20% power while cruising....
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