All Questions

0
votes
1answer
35 views

What is the minimum takeoff fuel requirement policy for commercial aircraft? [on hold]

I am currently working on a fuel burn analysis of a particular route (ATL to DCA). I really want to predict takeoff weight of the flight; however, I realized that it's not easy to get the information. ...
-1
votes
0answers
62 views

Can I land a floatplane at Tulalip Bay, WA? [duplicate]

I have a potential tenant asking if they can land their airplane near Tulalip Bay, WA, either inside or outside the bay. Are there any restrictions? He is a government contractor relocating here ...
0
votes
1answer
134 views

Was this a near collision or a normal procedure? [duplicate]

I flew on a plane from UK to Spain a couple of days ago (FR7542, 15/01/19 16:30) and in the middle of the flight I could see another plane (a private jet much smaller) just flying underneath us. From ...
1
vote
2answers
41 views

Where is Transport Category aircraft defined in CFR 14?

Commuter Category is defined rigorously, https://www.law.cornell.edu/cfr/text/14/23.3 But I was unable to find an equivalent definition for Transport Category in the regulations (not Wikipedia or ...
1
vote
2answers
97 views

Are airlines responsible for Airport security or Airports concerned or third-parties on terminal-side? [on hold]

In Indian Airports, all sort of terminal-side security is done by CISF . They do all the frisking and baggage screening etc. I am concerned more for the terminal-side security rather than airside ...
0
votes
1answer
32 views

What is the meaning of “repeat cut-in interval” in maintenance planning document? [on hold]

I have an MPD that has multiple intervals for some tasks. threshold, repeat Cut-in, and repeat. I dont know what "repeat cut in" is
1
vote
1answer
48 views

Effect of Low Vitamine B12 on Class 1 Medical

Does anyone know what the effect of LOW Vitamin B12 is on an aviation medical class 1? My doctor did a blood test recently and put me on Vitamin B12 pills. Is this an issue for Aviation Medical ...
0
votes
1answer
75 views

Will a Secondary Surveillance radar be affected by a 300 m high wind turbine

60 wind turbines are located at a distance of about 30 km away from a Secondary Surveillance radar installation, what will be the impact of this? My less than stellar knowledge of radar systems tells ...
3
votes
1answer
41 views

What is the minimum separation for navaids to work properly without interfering?

What is the minimum separation between navaids (for VORs/DMEs and NDBs) for them to work without interfering, by regulation and by functionality?
1
vote
1answer
44 views

How to calculate the radius of wing tip vortices?

Is it possible to find the radius of wing tip vortices?
0
votes
0answers
18 views

Ambiguous mention of NAVAIDs with duplicate names in FAA's CIFP file (ARINC-424 18 format)

I am studying FAA's Coded Instrument Flight Procedures (CIFP) dataset (link), coded in ARINC-424 18 format, and I noticed that navaids are coded for the purposes of an IFP simulation only by their ...
-1
votes
0answers
34 views

Jet Engine Test Cell summary [closed]

I am having difficulty reading a test cell report for a GE Turbo Fan engine. I have already calculated it by hand. It does not match the results from the shop summary.
0
votes
0answers
25 views

Historical data database providing route info [closed]

Is there a reliable source where I can find historical data providing me: citypair, aicraft type, route (waypoints), block time, fuel burn
3
votes
3answers
120 views

How much clearance is provided when taking off over a 50 foot obstacle?

When performing a takeoff over a 50' obstacle, how much clearance is provided between the obstacle and the aircraft and where can that be found?
2
votes
3answers
106 views

How could so many drones establish contact with ATC?

India has brought out best set of drone regulations on the basis of No Permission No Take-off (NPNT). But how can the ATC establish contact with so many drones that will be unpredictably asking for ...
1
vote
1answer
115 views

Why is YF22 designed with conventional rudders while YF23 with all-moving rudders?

Are all-moving rudders more stealthy? If so, how come YF22 which is just as fixated with rear body stealthiness as the YF23 comes with conventional ones? Also, all-moving rudders have fixed camber, ...
8
votes
1answer
163 views

How do flaps deploy and stow with very large wing flex?

On large airliners, the wings are generally of the high aspect ratio types and hence very flexible. Now the flaps are attached to wing only through a series of tracks, and as the wings flex, these ...
-1
votes
0answers
42 views

How can I calculate the lift generated by a specific wing? [on hold]

What will be the amount of lift generated by a wing if it has a total surface area of 6m2 and it is moving with the velocity of 50km/h? And the airfoil has a flat bottom shape.
0
votes
0answers
21 views

Is there any resources available on Aircraft HardTime / On condition component? [closed]

Is there any Powerpoint presentation of Aircraft HardTime Component / On condition component available for training purpose.
1
vote
1answer
145 views

First airplane to use a flight simulator?

Icarus, Pegasus, da Vinci's flying machine and Wright brothers airplane probably didn't have a flight simulator, since computer science was not yet developed enough (Antikythera ancient analogue ...
1
vote
1answer
48 views

Wind vs high altitude cruise [duplicate]

Yesterday I flew back from Tokyo down south against great head wind around 150kt at 34000’, the original flight plan was to cruise at FL240 for a while then climb up, but the captain decided to get up ...
1
vote
2answers
127 views

Does ATC use True Course or Ground Track?

Reading the practice questions for PAR, I came accross this ATC advises, "traffic 12 o`clock." This advisory is relative to your A) true course B) ground track C) magnetic heading I was ...
2
votes
0answers
80 views

How can i switch off the yaw damper in an Airbus A350?

How can I switch off the yaw damper in an Airbus A350? In the A320, this can be done by switching off the FAC but the A350 doesn't have a FAC switch, it has prim and sec instead of FAC and ELAC.
1
vote
1answer
146 views

How much air does a 777-300ER's pressure cabin hold?

I've been wondering how much air a 777-300ER's pressurised cabin holds, but, while most of its specifications are fairly easy to find, the amount of air it contains is not. Does anyone know what ...
20
votes
9answers
7k views

Why are aircraft parts built in different places and assembled in one?

Airbus has its manufacturing facilities in Spain, France, Great Britain and Germany. Each country produces different parts of the aircraft and is finally assembled in one place. Why is this? Wouldn't ...
0
votes
2answers
147 views

How do you use a flexible drive shaft?

Saw it on a 747 freighter nose door, see it again on an F16's M61A1 gun assembly. How do you design with a flexible shaft? In what situation do you use it to replace a bunch of rigid shafts and gears?...
3
votes
2answers
84 views

What is the purpose of including sea level pressure and temperature in a METAR?

In a METAR such as this one: KGOK 161553Z AUTO 18011KT 4SM BR OVC007 07/05 A3011 RMK AO2 SLP201 T00670050 Translated to: Jan 16, 1553Z, Automated. Mist, Wind from 180° at 11 knots, 4 statute ...
4
votes
1answer
123 views

Staying oriented in VFR

This is something I have been questioning more and more often on how pilots do it. So, let's say we are flying on a new location and know very little about it. When flying around and keeping the ...
1
vote
0answers
56 views

Could I Legally Fly a Paramotor as a Commuter Method [duplicate]

I get permission from company security to fly into work using my paramotor (I don’t have one, but would like to get one). We have six offices around the city. The city has two airports: one major ...
3
votes
0answers
30 views

Temperature Indicator in Manned Balloon

14CFR31.85 ("Required Basic Equipment" for manned free-air balloons) requires an Envelope Temperature Indicator (ETI). This is a requirement of the FAA. Not necessarily the manufacturer. Some balloon ...
0
votes
1answer
145 views

What disadvantages does flying a drone close under a ceiling have?

If I want a drone (quadcopter) to be flying always under a surface and close to this surface (i.e: under a table 5cm away from the surface), which are the disadvantages this would have in the lift ...
2
votes
0answers
49 views

Why does the rotor thrust decrease at smaller tip clearance for shrouded rotor?

Consider this system, rotor with shroud: From this research, we see that: at the same rpm, the rotor thrust decreases,the shroud thrust increases as tip clearance decreases. But why does the rotor ...
0
votes
0answers
28 views

Recommend a flight school [closed]

I am still a highschool student but these past few days I am becoming anxious on what flight school should I go. There are a lot of flight schools here in the Philippines but neither of them have ...
1
vote
1answer
82 views

How do aircraft stall warning systems handle (or not) asymmetric-stall situations?

Most, if not all, new airplanes are required to have stall warning systems to (as the name should make clear) provide the pilots with a warning when the airplane is about to stall. Most stall warning ...
3
votes
2answers
231 views

Why does a hovercraft lift blade look one way, but a propeller another?

The lift blade of a hovercraft looks like this: Note the ten rectangular blades. The blade of a propeller-craft looks this this: Note the three, traditional airfoil-shaped blades. Why are the two ...
7
votes
1answer
2k views

Are there little seat belts or other restraints for the organ-containing coolers kept in cockpits?

The NPR podcast A Surgeon Reflects On Death, Life And The 'Incredible Gift' Of Organ Transplant features Dr. Joshua Mezrich a surgeon who flies to other hospitals to retrieve organs for transplant ...
2
votes
1answer
71 views

How can I convert a Peruvian pilot's license to one that will let me work in the USA? [duplicate]

My fiancé just became a U.S. resident. He's originally from Peru and is a helicopter pilot with some airplane experience as well. He has more than 8000 hours flying helicopters and around 150 airplane ...
2
votes
2answers
103 views

Can horizontal stabilizer trim be worked independently (each side)?

I notice most jetliners have a big trim wheel on each side of the center console. This wheel is black with white stripes, and notably turns on its own via the autopilot. Two large trim wheels: And ...
12
votes
1answer
2k views

What is this high wing, single engine aircraft?

I think it might be a Douglas aircraft.
1
vote
1answer
95 views

How much does the swirl of engine exhaust affect aircraft performance?

Most multi-engine aircraft have engines that rotate the same direction on both sides of the fuselage (e.g. the GEnx rotates clockwise, as viewed from the front, there is no 'mirrored' version). What ...
0
votes
0answers
24 views

What is the glide ratio on the CE-S550 Citation S-II?

I couldn't find it in the AFM. Is it different then the square winged citation II?
-4
votes
1answer
136 views

What percentage or airplanes have engines [closed]

I heard that some airplanes don't have engines. how many airplanes in the world have engines?
0
votes
0answers
128 views

How much does it cost the airline if an aircraft makes a missed approach? [duplicate]

aircraft go around due to variety of reasons viz. Bad weather (inevitable), unstable approach, ATC errors etc. knowing the cost implications will help in educating the stakeholders.
4
votes
1answer
102 views

Can roll be controlled through elevators in a fixed-wing aircraft? [duplicate]

In fixed-wing aircraft, roll is typically controlled through ailerons. But I am wondering if roll could also be controlled through split, independently controllable left/right elevators?
3
votes
2answers
126 views

Does rolling or yawing affect the angle of attack?

If I'm on final in windy conditions and I need excessive rolling and yawing movements to stay on centerline and say, my pitch stays constant - does rolling or yawing change my AOA such that I could ...
10
votes
2answers
265 views

How do I renew my ability to fly after 40 years?

I am 83 years old and it has been over forty years since I piloted an aircraft and would like to go back to flying again. I hold a single engine rating and had flown several hundred hours, but my log ...
4
votes
3answers
230 views

Do large non-pressurized metal planes have a maximum fatigue cycle?

For example the DC3. The way I understand it, the only thing that "ages" the airframes of DC3 is the landing/takeoff cycles and the accompanied periodic force loading/unloading. Do planes such as this ...
1
vote
1answer
100 views

Where is the inclinometer “ball” in a knife edged turn?

Discussion of steep turns has lead to a question about where the inclinometer ball would be if the plane rolled to 90 degrees. Also, would there be any difference if the plane simply rolled to 90 ...
2
votes
1answer
325 views

Are passengers allowed to travel seatless(on the floor)?

I was told that a flight in Europe carried two passengers on the floor, because their purchased seats didn't exist. BBC. Is that allowed? For example, in Greece, a bus is not allowed to travel with ...
2
votes
0answers
70 views

Is there any book like the “Stick and Rudder” about the helicopter?

I have read the Stick and Rudder, that's really a classic book. Now I want to study the flight theory about helicopters, is there any book like this?

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