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When you increase throttle and engine rpms what happens?

A. You descend B. You climb C. You stall D. You turn

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If it's a propeller plane and you don't add rudder to counter "P factor" you may also turn a bit.

Posted on Apr 10, 2017

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If you are flying level you climb. If it's a propeller plane and you don't add rudder to counter "P factor" you may also turn a bit.

Posted on Feb 03, 2017

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Posted on Jan 02, 2017

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What are the best aviation subjects to start an aviation website with?


Really depends who you think your audience is. Lay people may just want to know how a plane flys or why certain things happen on commercial flights. Pilots may want to learn about skills/ratings they havent acquired yet, recent incidents.

May 20, 2017 | Aircrafts

3 Answers

How do you start a plane?


Technically anyone could get in and start a big jet aircraft, but it would have to be pointing in the right direction. Getting a large transport jet going is allot more complicated than just starting the engines. The whole aircraft has a multitude of systems that have to be brought on line even before the start is selected. Failure to do so would have the computers on board sulk until you said good morning to them. The first operation, thus, is to 'power-up' the aircraft, this means to establish electrical power. This can be done in two ways, one being establishing a ground power unit and secondly, the aircraft's own auxiliary power unit, which is normally a little jet engine in the tail of the aircraft. The APU as it's called (auxiliary power unit) will also supply air pressure for cabin air conditioning and to the air starter units used to spin the main engine turbines at high speed to start the main engines, when commanded to do so. This is why the air-conditioning temporarily goes off when the engines are starting, because the APU cannot supply both engine start air and conditioning air at the same time.
After electrical power has been established, the on-board computers will come to life. Some computers are in their own little world and control things that are fully automatic, you only hear from them if they detect a defect in their own self test. Other computers are in pairs and threes, they monitor each other and alert the pilots and engineers via other computers if any detects faults in the others. There are two or three inertial navigation systems that are driven by lazar light. In each unit there are at least three lazars in different orientation. These units can detect the slightest movement and calculate the position of the aircraft by adding that movement to the aircraft's current position. The IRS units are very - very clever since they measure the movement by measuring the shift in the light spectrum when the aircraft moves. Since they measure movement, they have to know the speed the world spins at and the speed of the earth through space, to deduct that from the small movement on the aircraft in order to calculate the position. Allowing the IRS units to come on line is essential and must be done before main engine start. The aircraft must be completely stationary for this to happen.
After all that has been done the main navigation computers are programed for the route to be flown and with other information. The Flight management computers (as they are called on some aircraft) can also acquire their own information, like how much fuel is on board, and in flight the airspeed of the aircraft the angle at which the aircraft is at and from that it will calculate the weight of the aircraft.
So when all the systems are up and running and the computers have done their thing and have been programmed where required we can carry out all the other checks, switch on the galley power and call for a cup of tea and when we have drunk that we are nearly ready to start the main engines.
When ready to start the main engines the air system has to be re-configured to enable the starters to operate, following that the normal procedure is to place the engine start switch in the auto start position, where all the starting functions are carried out automatically. Both pilots monitor the engine start as sometimes things can go wrong like a hung start or a hot start. These sort of malfunctions can seriously damage a multi-multi million dollar engine in a flash and no pilot would want to be responsible for that. As the engine spins up to speed, at a predetermined percentage RPM the captain will select the fuel switch to the run position which will allow the fuel to be injected into the engine for light-up. Following a normal start the air system is then reconfigured once more as part of the after start check list, along with other post start items.
All in all what I'm trying to say is that it is a complicated procedure and not just about turning a key like a car. So if you were to board a dead aircraft on the tarmac and turn the start switch nothing would happen.
So what if the engineer wanted to run an engine for an engine test, would he have to follow the same procedure? Well, apart from loading the flight data into the flight computer, he would have to do everything else, if only to prevent all sorts of warnings that would occur trying to short cut the procedure, since the only warnings he would wish to see is anything that is relevant to the engine start, otherwise engine starting and running warnings may well be disguised by other more insignificant malfunctions. Hope this has been helpful.

Jan 04, 2017 | Aircrafts

2 Answers

Is there an instrument that shows the angle BETWEEN you and a VOR radial on a Cessna?


160 is the final approach heading to runway 18. You notice that this approach does not align exactly with the runway, you make a slight right turn to land. 115deg is the outbound leg heading for a procedure turn and 295 is the return heading from the procedure turn, from which you would turn 160 on final and fly the 160 line to the missed approach point. DME is required for this approach so you would either need DME or a GPS that can supply distance information. To fly this full approach (from southerly directions) you would fly to the VOR, fly outbound at 3000' MSL on a 340 heading for about 7 miles then turn left to heading 115 for 1 minute then right turn to 295 and intercept the 340 radial, turn right to 160 and descend to 2300' by GRAMA and continue descending to 1220" at 1.6 DME from the VOR. From that point, if you have the proper visual cues you may descend below 1220' to land, if you can't see the runway environment from 1220 feet at 1.6 DME then you must stay at that altitude until you do see it or you reach the missed approach point at .3DME. There's a very real reason that an instrument rating is required for IFR flight. It takes a lot of training and practice to learn to do it right - and even then you may not have it all correct. (I may well have missed something on this approach but I haven't been IFR current in several years)

Jan 04, 2017 | Aircrafts

1 Answer

Can fighter jets fly over Mt.Everest & fight battles over that altitude? Doesnt the dense climate & low level oxygen stalls the jet engine?


Jets, by nature perform better at altitude. Fuel economy and performance are much better up high.

Jan 04, 2017 | Aircrafts

1 Answer

Is hydrogen the only source of fuel that can replace the current jet fuel for airplanes?


Well technically you can make a ducted fan plane but it is highly inefficient as battery technology is still in its infant stages as well as batteries are still very heavy. Secondly Jet engines are basically high bypass turbines.. They can technically run on many different fuels such as diesel, kerosene, and propane.

Jan 04, 2017 | Aircrafts

2 Answers

What are some limitations on airplane flaps?


Usually it is airspeed of the aircraft. Each aircraft has different airspeed requirements for operation the flaps or landing gear. Usually that speed is determined by the airframe manufacturers and the design of the flap system component. You could built it strong enough to handle any airspeed, but a plane can only carry so much weight. If you built everything to work without any limitations you might have an airplane too heavy to fly. Designing a plane is a balance between lifting capability and weight. Both of these are important design parameters.

Jan 04, 2017 | Aircrafts

2 Answers

How high does a plane on short trips vs. on long trips or is the altitude the same?


Your question is a good one - but the answer is much more complicated that you would expect. Think about driving your car from point A to point B across a city. Lots of paths - some shorter than others, but the shortest path may not be the quickest. Or the quickest may involve a toll road - and you may or may not be in a hurry.

The usual most important factor (for commercial operations, at least) is to save money, while still arriving on time. Airplanes in the air are subject to the winds aloft, which will generally be at different strengths AND DIRECTIONS at different altitudes. Most airplanes operate more efficiently at higher altitudes (up to limits), but at those higher altitudes the plane may face stiffer headwind. Further, it costs time and fuel to climb to those altitudes, and you will not regain coming down as much as it took going up. [Think of a bicycle on hilly terrain vs. level ground.]

So what's the answer? Well, for most trips the pilot will consider all these factors. They are taught during training how to plan the flight in terms of time and fuel required, and to include in that especially the winds at different altitudes. Then they will pick the altitude, whatever that is, that maximizes the results that they consider most important.

Jan 04, 2017 | Aircrafts

1 Answer

Why do the left propeller on aircraft spin clockwise and the right engine spin counter clockwise?


Its easier to control the airplane with that balance, a twin like that would be easier than a single for the same reason that the prop rotation makes the plane easier to turn to one side than the other.

Jan 04, 2017 | Aircrafts

2 Answers

What are the possible reasons a plane would do this?


Departure controllers have blocks of airspace with altitude limits. Chances are that there was other traffic that they needed to have out of the way so they held him at 5000 before clearing him to the next controller's airspace.

Jan 04, 2017 | Aircrafts

2 Answers

Got a hypothetical for aircraft pilot's (Small planes).?


I suspect that the idea of max climb plus glide is not a new one, and that, if it really were cost-effective on fuel, we would know about it.

Jan 04, 2017 | Aircrafts

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