what are the disadvantages of turboprop vs. turbojet?
597664
turboprops are less of a problem in regard to repairs and servicing
411356
Pros: Supercharger\nCons: You wasted money on a car thats a automatic.
775364
There are no real advantages, only perceived ones! \n\nThere isn't enough space to list all of the disadvantages.\n\nIf some one was to do an honest cost/benefit analysis, very few would own one.
80708
The advantage is it's free.\n\nThe disadvantage is that is very unsophisticated and gives you very little control as what to allow in or out.\n\nZone Alarm is a much better choice.
66486
Surface maps only show the conditions near the surface (1000 mb), jet streams and upper level pressure systems have more to do with weather than surface conditions.  The winds and pressures at different elevations can vary greatly from those at the surface.
480159
An airplane's design helps it create and maintain lift and thrust. A needle's does not.
53243
I have to assume that you're familiar with general aerodynamics. If not, there's really not enough space to answer your question here.\n\nThe biggest physics differences between a helicopter and an airplane are torque, translational lift, and retreating blade stall.\n\nA helicopter's fuselage will tend to turn opposite the direction of the rotor, particularly at a hover or a slow speed. (Some streamlining occurs in flight.) The "tail rotor" is actually called an "anti-torque rotor" because its installation is designed to counteract the main rotor's torque. (Notice that twin rotor helicopters don't have anti-torque rotors because the main rotors rotate in opposite directions and counteract each other's torque.)\n\nNext is effective translational lift. At a hover and at slow speeds, generally below 30 KIAS, a helicopter is flying in its own rotor wash. A lot more lift and constant control inputs are required to maintain steady flight. Lift in a helicopter is created by the rotating blades and is increased (or decreased) by raising the collective (a “joystick by the pilot’s left leg) which increases (or decreases) the rotor’s angle of attack. Note: During all of this, the rotor maintains a constant R.P.M….it does not spin faster when climbing and slow down when descending.\n\nAlso, some of this lift is used for thrust to move the helicopter forward, or sideways, or backward. This is why you see a helicopter nose down when it’s taking off. The rotor is the “wing and the propeller” at the same time.\n\nFinally, retreating blade stall limits the speed of a helicopter. Sitting on the ground and in a still wind at operating R.P.M. the wind is blowing over the blades at a steady speed. (Of course the blade root’s speed is much lower than the blade’s tip because it has less far to travel.) But in forward flight at, say 100 KIAS, the advancing blade has an extra 100 knots relative wind added to its speed. The retreating blade, going opposite to the relative wind is LOSING 100 knots relative wind. The faster you go, the more the retreating blade loses lift and eventually stalls; that is loses lift completely and the helicopter will roll over.\n\nThis is about all I can tell you in a short time, but it’s all very interesting and surprisingly inefficient. I’ve attached some links that will go into more detail. Hope this helps!
5972
turbos are driven by the exhaust gasses, superchargers are driven off the crank. turbos have higher power potental but they have to spool up, so there is some lag in the low end, commenly called turbo lag. superchargers are always on and have exellent low rpm responce but they don't have the peak power potential of a turbo or the high end power. niether one causes damage (to the car, if thats what you mean) if the proper measures are taken.
1053885
It is very beneficial to aeronautics as different layers of the atmosphere have different pressures and affect how a plane or shuttle flys.  Similarly a helicopter can only maintain its altitude within very low levels of the atmosphere.
285696
A turbocharger is an exhaust gas driven compressor used in internal-combustion engines to increase the power output of the engine by increasing the mass of oxygen entering the engine. A key advantage of turbochargers is that they offer a considerable increase in engine power with only a slight increase in weight.\n\nA turbocharger is an exhaust gas driven supercharger. All superchargers have a gas compressor in the intake tract of the engine which compresses the intake air above atmospheric pressure, greatly increasing the volumetric efficiency beyond that of naturally-aspirated engines. A turbocharger also has a turbine that powers the compressor using wasted energy from the exhaust gases. The compressor and turbine spin on the same shaft, similar to a turbojet aircraft engine.\n\nThe term supercharger is very often used when referring to a mechanically driven turbocharger, which is most often driven from the engine's crankshaft by means of a belt (otherwise, and in many aircraft engines, by a geartrain), whereas a turbocharger is exhaust-driven, the name turbocharger being a contraction of the earlier "turbosupercharger". Because the turbine of a turbocharger is in-itself a heat engine, a turbocharger equipped engine will normally compress the intake air more efficiently than a mechanical supercharger. But because of "turbo lag" , engines with mechanical superchargers are typically more responsive.
50460
advantage: key thing - FASTER\n\ndisadvantage: umm...crashing?? and airplane food is gross..
839573
Lasers are usually faster, produce somewhat better text and cost less per page, but they are a bit more expensive to buy and are normally black and white only.  (Color lasers are prohibitively costly for home/small office use.)\n\nInkjets, while slower, are better for images and can do things like color charts that cannot be done on a black and white laser.  They cost almost nothing to buy these days (a low-priced inkjet often costs little more than the ink cartridges that come with it).  But the ink is much more expensive than toner for lasers, because it does not last nearly as long.\n\nOne more thing:  inkjet ink will clog if the printer is not used regularly (say, every few days).  That is extremely wasteful of ink and greatly increases the net operating cost.  If your printer may sit idle for weeks at a time, you will find a laser far more cost-effective.\nGood luck!!
339908
A nuclear plant is efficient and very clean. They probably dont cost that much more than any other sort of plant. The disadvantages are straight forward, if anything goes wrong then they go very wrong.
37996
Pro means "Advantages"\nCon means "Disadvantages".\nI have read these words in an article.
45810
With newer technology, todays planes while not superosnic still are faster than the average planes from 20 years ago when the concord was first built and are more econmoical.  In the US, the concords were not allowed to break the sound barrier due to the sonic boom so they had to wait until outside of US air space to reach full potential.  The reason there is no successor is that boeing's and airbus's newer planes are faster, more fuel efficient and the time savings are not as great now.  With the US still having restrictions in regards to the sonic booms, there isn't a market in the US for such planes.
118833
a turbo will blow ur motor, get a cold air intake its pretty cheap and it will give u about 10-20 more horse
93905
pros: effective reutilisation\nless energy consumption for reuse\n\ncon:\n more time\nmore equipment\nmore hassle