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0
votes
0answers
15 views

What’s the difference in having pointy flap track fairings VS rounded flap track fairings?

Would either design (or both!)come with compromises in the comfort-during-the-flight department?
0
votes
2answers
25 views

If the pilots used the brakes upon landing, would the force essentially slam the front wheel down?

So if the pilots braked immediately, with only the back wheels down, and nose wheel still up, would the force from braking cause the front wheel to come slamming down?
1
vote
1answer
101 views

Out of sight planes during final approach [duplicate]

Does it ever happen that planes descending on a descent path (glide slope) block each other so that one (or more) plane is not visible from the tower (at the airport) or localizer? I want to know if ...
2
votes
1answer
57 views

How should the maximum output force of the actuator be chosen?

If the hinge moments of the control surfaces of an aircraft are given, how should the maximum output force of the actuator be chosen? Is there any standard or reference?
-1
votes
0answers
66 views

How do I determine the requirements to add a new category to a pilot certificate?

I'm going in for my CFI stage tomorrow and I'm a little confused. If I want to convert between categories - e.g. from airplane to helicopter - where do I find that info and also what are the hour (if ...
24
votes
4answers
5k views

Why do aircraft cockpit displays use uppercase fonts?

I've seen many images of aircraft cockpit displays and instrument or control labels that all seem to use uppercase lettering, even though there seems to be a lot of evidence indicating that mixed case ...
3
votes
0answers
63 views

If the airport reported BKN002, would that prevent performing a DH 259' approach?

According to this Instrument Approach (airport: SBAO): The published Minimums are a Visibility of 1300 m, and a DH of 259 feet. In accordance with ICAO, would the Visibility and Ceiling be above the ...
4
votes
1answer
103 views

Why does the use of reverse thrust on the DC-8 generate a pitch-up moment rather than a pitch-down moment?

Unlike most aircraft, the DC-8 is certified to use reverse thrust in flight (albeit only on its inboard engines). This serves as a very effective airbrake, although it also produces considerable ...
1
vote
1answer
38 views

How is a stator like a diverging passage?

I've read in a lot of places that stators in an axial compressor are responsible for diffusing air and removing the radial velocity to make the flow parallel to the shaft. What I don't understand is ...
3
votes
3answers
124 views

How do you write 'to', 'then', or 'via' in IFR clearances shorthand symbols?

Although there are NO restrictions about the usage of shorthand symbols, still it would be useful when I fly with another person together, so I studied those symbols and got some doubt points. If ...
2
votes
1answer
192 views

What controllers are used in Airbus/Boeing fly-by-wire systems?

I was wondering, what controllers are used in airbus or Boeing aircraft fly-by-wire systems to control servos? Who manufactures such controllers, or are the systems controlled from flight computer ...
3
votes
0answers
112 views

What are L/D ratio of famous WWII fighters?

I'm looking for L/D ratio of old warbirds. I'm particularly interested by the P-51D, the Supermarine Spitfire Mk.VII and the Mitsubishi A6M3 Zero, but I'm also quite curious about other warbirds that ...
7
votes
1answer
55 views

Since shock waves have non-negligible viscosity, why do the normal shock relations ignore friction/viscosity?

The normal shock relations (seen below) are derived by using steady, 1D, neglect potential, no shaft work, adiabatic and zero viscosity assumption. However, since shock waves are "thin regions of high ...
1
vote
0answers
61 views

What is the difference between flight watch and home reserve?

Can anyone explain the difference between 'flight watch' and 'home reserve' with regards to flight and duty periods. This is in regards to a charter operation, where crew members are on standby at ...
3
votes
1answer
1k views

How do A320 pilots trim?

So, I am very familiar with the 737NG, and there is a trim switch on the yoke for vertical trim. However, I can't seem to locate this trim switch in the A320. Is there a trim switch on the joystick in ...
2
votes
2answers
65 views

Difference between symmetrical and cambered airofoil?

I have seen images of cambered and symmetrical wings but apart from that what are the major differences between them? I have also read that symmetric wings don't produce any lift at 0° AOA whereas ...
24
votes
1answer
5k views

Why do some AFBs have planes parked at 45 degrees to others?

I'm assuming this is just a matter of available space but it seems you could get 4 across all aligned but maybe there is another reason. The image is from McGuire AFB but I've seen this on other AFBs.
0
votes
0answers
45 views

If MH370 was found today, would the flight recorders offer any insight to what happened, or would they be too damaged? [duplicate]

Can the black box from MH370 still have data pulled from it after being submerged in the ocean for so long?
3
votes
2answers
85 views

Can a safety pilot acting as PIC also log cross country time?

I am working on my instrument rating and I need to build up both my instrument time and Cross Country time to meet the requirements. I am planning on making most of that time by flying with a friend ...
1
vote
3answers
149 views

Could the Aurora D8 have Ramjets instead of traditional jet engines?

By the design of the Aurora D8, the engines would receive the boundary layer of air atop the fuselage, however, because jets have what I am calling "moving parts", and the pressure differences would ...
1
vote
4answers
166 views

When do commercial aircraft tail numbers change?

Each (large, commercial and most other) aircraft has a registration number, painted or stickered on its hull: the tail number. I was under the false impression that tail numbers don't change, and ...
2
votes
2answers
88 views

What are the handling effects of converting a dihedral wing to polyhedral?

I'm looking at plans to build a radio controlled (RC) glider that is launched by rocket boost mainly as a park flyer. I've been given a set of plans for a model that is a dihedral wing (see attached ...
-2
votes
0answers
35 views

How can I study , training and graduate for getting a job in Turkish airlines? [closed]

How can I study , training and graduate for getting a job in Turkish airlines ?
8
votes
1answer
2k views

What was in the noses of airliners before the weather radar?

At the time of the first Lockheed Constellations, airliners fitted with a weather radar were not common, and the navigator was not placed in the airplane nose. Thus, the nose seems to be mostly dead ...
-1
votes
1answer
51 views

What are the definitions of AFGS and AFCS in guidance systems? [closed]

What are the definitions of AFGS and AFCS in guidance systems?
0
votes
0answers
39 views

How come PSA airlines got the same IATA code as Comair?

PSA Airlines has the same IATA 2-letter code, "OH", as the now-defunct carrier Comair. Yet - the two companies are not related. How is it, that IATA reassigned the same code to an unrelated carrier ...
0
votes
1answer
39 views

ExpressJet IATA code before “merger” with Atlantic Southeast?

Before 2011, Atlantic Southeast had the IATA 2-letter code "EV". Then, On November 22, 2011, both ExpressJet and Atlantic Southeast Airlines achieved a single operating certificate that allowed ...
-1
votes
0answers
77 views

Is this true about any generator which uses for grounds aircraft checking by 220W cables ? Shouldn't use from GPU? [closed]

Is this true about any generator which uses for grounds aircraft checking by 220W cables ? Shouldn't use from GPU ? I wanna know about is nessecary 220W AC power for connect to Aircraft when those ...
-1
votes
0answers
27 views

How's ground speed GS evaluated ? Describes for me from A to Z please [duplicate]

How's ground speed GS evaluated ? Describes for me from A to Z please
3
votes
1answer
84 views

Why will windshear inop illuminate after landing in an MD-83?

Why will windshear inop illuminate on the annunciator panel after landing or before starting taxi in a McDonnell Douglas MD-83?
1
vote
2answers
91 views

How does the battery master switch activate the battery contactor in Cessna 152?

I have trouble understanding how the battery master switch activates the battery contactor in this schematic from the Cessna 152 manual. This is the model from 1979 or later with an Alternator Control ...
0
votes
0answers
30 views

How long does it take to die when we would in altitude that push us to hypoxia? [duplicate]

How long does it take to die when at an altitude sufficient to induce hypoxia ?
1
vote
1answer
166 views

How to find the remaining fuel without electrical power on the MD-80?

After a flight, how to find the remaining fuel without electrical power (even the APU) on the MD-80?
6
votes
1answer
129 views

What is the use of this object in the cockpit of a Bombardier Dash 8 Q400?

What is the use of this object in the cockpit of a Bombardier Dash 8 Q400?
1
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0answers
17 views

Do check rides completed by part 141 schools with self-examining authority count like normal check rides for CFI renewal and gold seal?

Some schools have self-examining authority issued by the FAA. Do check rides completed in this manner count the same way as a standard check ride for the purpose of CFI renewal and gold seal ...
16
votes
5answers
5k views

How do planes maintain constant speeds at cruise altitudes?

I'm a noob so pardon my ignorance. So my understanding is that as the plane gets lighter during the flight, its mass reduces therefore reducing the lift needed to maintain the altitude. At those ...
-3
votes
0answers
43 views

Where I can get the flight manual for G650 [duplicate]

My question is in the title. Please if anyone has it and could send it, it would be really nice. I am an engineer trying to better understand the impact of various failure of the engines on the ...
-2
votes
0answers
57 views

Where can the MEL for G650 aircraft be found? [closed]

Anyone knows where I could get the MEL for G650 aircraft? I was looking everywhere on the internet but haven't managed to find anything ... Thanks in advance!
2
votes
4answers
96 views

Does a CFI need an Instrument Rating

https://www.ecfr.gov/cgi-bin/retrieveECFR?gp&n=14y2.0.1.1.2&r=PART#se14.2.61_1183 The or below is very confusing. Doesn't it mean I need an Instrument rating or one of the things that ...
7
votes
4answers
349 views

Is there a age limit to become a CFI?

I’m a new PPL and I would love to become a CFI in the next 2 years (or so). My objective would be to transfer what I know (and will have learned) to aspiring pilots. I’m older, though (just about to ...
0
votes
2answers
121 views

Could sprinkling cool water on the runway in hot summer decrease air density?

Why is there no such technique used where cool water gets sprinkled on a runway? Cooling down the air above the airport would decrease air density and therefore lead to a shorter starttime for ...
0
votes
0answers
46 views

How to analytically calculate the tilting angle and aperture of an expansion fan? [closed]

I'm trying to calculate analytically how the expansion fan is positioned relative to the flow. Knowing the incoming Mach number (3.927) and the wedge angle (117°) I'd like to calculate the other two ...
1
vote
0answers
82 views

Supersonic propellers for supersonic aircraft? [duplicate]

A propeller is a spinning wing. Supersonic wings work. So, provided that the blades are made wide-chord and thin like supersonic wings are, with a supersonic airfoil, can they not power efficiently a ...
25
votes
3answers
14k views

Why is “runway behind you” useless?

I was recently answering this question and for some reason it made me think of this fairly famous aviation saying The three most useless things to a pilot are the altitude above you, runway behind ...
9
votes
2answers
3k views

What are the disadvantages for using short-field take-off technique?

It is obvious that using the short runway takeoff method(hold the brake till engine get full power) could get the aircraft in air within a shorter runway distance.Then why it is not used for every ...
0
votes
0answers
31 views

SOUND-OFF: Bose A20 ANR + BT vs. Faro Stealth 2 ANR + BT [closed]

Alright, Bose A20 & the Faro Stealth 2 (TWO). Both feature active noise reduction (ANR) and Bluetooth wireless for mobile / music / alerts. Bose A20 = $1000 Faro Stealth 2 ANR = $450 Who has ...
4
votes
1answer
256 views

Can airlines recover costs if they dump fuel for a medical emergency?

As per the title, can airlines recover costs if they dump fuel due to a medical emergency on board shortly after takeoff?
1
vote
1answer
96 views

Will I be denied or fail a first class medical if I have a recent history of depression? [duplicate]

I plan on going to get a medical exam for a first class medical certificate to attend flight school. Now, a couple months ago I met with a primary physician to get my blood and urine checked as a ...
5
votes
2answers
189 views
+50

Why does the low voltage warning light not illuminate when the alt switch is on, but the engine is off?

As part of the pre-flight inspection, one of the checks is to verify that the low voltage light is illuminated when switching just the battery on. This makes sense; there's a low voltage and the ...
7
votes
4answers
2k views

If you were to fly an ILS in a knife edge would you receve GS and LOC be flipped?

because LOC and GS work the same way, if you were to fly one at 90 degrees bank would your information be displayed on the wrong indicators?

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