All Questions

9
votes
4answers
2k views

What are some drawbacks to having a wingtip propeller on an aircraft?

I was reading about aircraft concepts that involved wingtip propeller design and was wondering what the drawbacks of such a technology would be. I could not access the full paper but came across this: ...
0
votes
0answers
61 views

Why does this flight fly over Bangladesh, and not over Nepal and China? [duplicate]

Lately, I have been following flights flying eastwards from India. More often than not, I see them taking a longer route over Bangladesh and Myanmar, and not a typical parabolic route over Nepal and ...
1
vote
0answers
43 views

How to calculate the power required during transition from VTOL to fixed wing?

In a VTOL, I have calculated the power required for take off and cruise which was not difficult at all. Between take off and cruise, there is a phase where the VTOL has to transition by tilting the ...
3
votes
2answers
201 views

Does an airport need to have at least one instrument approach that I can use in order to fly IFR to it?

Half Moon Bay (KHAF) does not have any instrument approaches into the airport that I can use. All the approaches require RNAV but my aircraft is not RNAV-capable. Can I fly IFR to it? I'm thinking ...
6
votes
1answer
149 views

How is one's hypoxia resistance affected by the time of day?

I am doing my PPL course in the Czech Republic and here they have the following question in tests: when during day is resistance of human organism to hypoxia the best? There are 3 possible answers: ...
2
votes
1answer
114 views

Is altitude and heading your discretion when you are cleared visual approach?

If I'm north of KSAN heading east and the controller clears me for the visual approach for runway 27, can I descend and turn the plane at my discretion so that I can get ready for landing? Also, ...
2
votes
1answer
255 views

Does a nuclear weapon (B-61) equipped F-35 have the same nuclear confirmation failsafes as other nuclear device delivery aircraft?

Several sources cite that the F-35 will be able to be modified or simply equipped to carry some variant of the B-61 nuclear bomb. However, I know that most strike aircraft such as the F-15 Strike ...
0
votes
0answers
36 views

What is subcritical and supercritical boundary layer?

What is subcritical and supercritical boundary layer? What is the difference between them?
1
vote
1answer
83 views

Can the ball on a turn coordinator be to the full right/left while the wings are level?

Can it ever happen in a wings level flight that the Turn and Slip indicator ball is to the full right/left? If so then when and what will be the flight path of such an aircraft? Thanks in advance.
-1
votes
1answer
69 views

Where can I find an aviation headset to mini-jack adapter? [closed]

Can someone please tell me where to buy aviation headset jack adapter? Audio-out is 1/4", Mic-in is 0.206" (I think). New-fangled (laptop) receptacles are all 3.5 mm single in-out. Thanks.
1
vote
1answer
121 views

Are turbofans compensated for gyro effect?

In a multi-spool design is the gyro effect canceled or mitigated by having the two or more spools spinning in different directions?
23
votes
6answers
6k views

Why would a C150 tachometer bounce so much that the needle fell off?

On a long flight in a C150E, the tachometer started bouncing a little bit and the severity of the bouncing gradually increased until it was extreme: The tachometer was spinning in loops and making a ...
2
votes
1answer
189 views

What phraseology does ATC use with jet fighter pilots? [closed]

What do they usually say or ask when the fighter pilot wants to take off, when it's in the air, and what is the reply from the fighter pilot?
1
vote
3answers
129 views

Can you fly the plane manually without disengaging autopilot?

Let's say you are engaged a Boeing 777 with autopilot on and you bank or pitch. Will the plane respond?. If so. will the plane try to return to its parameters once you quit handling the controls?. ...
8
votes
2answers
232 views

Where is this VFR reporting point (“Water Tank” near Thousand Oaks, CA) in real life?

I was looking at the VFR sectional near Thousand Oaks, California. The chart has a "WATER TANK" labeled, but I see many water tanks in Thousand Oaks on the Google Maps satellite view. Does anyone ...
-2
votes
1answer
115 views

I would like to fly from the Aleutians to Japan [closed]

I would like to know what is required to do this... what is the legal... what kind of fuel would I need to make the trip in say a 172XP Hawk. Has anyone done this and what kinds of procedures should ...
1
vote
0answers
58 views

In a Boeing 767, what percentage of the aluminum is in structural components?

For a Boeing 767 (model year 2000), does anyone know how much aluminum is in 'structural' components, as a percentage of the total amount? And specifically the wings?
0
votes
0answers
15 views

what’s the difference between source computer and identifier in pfr [closed]

while taking printout of pfr if there is fault source and identifier both ...I have seen in pfr at sometimes identifier is not available..what does that mean?
1
vote
0answers
180 views

What is this high-wing, single-propeller, possibly military plane?

I recently acquired a black & white photograph of a group of military people posed in front of an airplane. I am seeking information about the plane, and maybe the people. The plane is mostly ...
0
votes
0answers
71 views

Why is EU 261 considered such a harsh regulation for airliners? [closed]

After Germania bankrupted too, there is a lot of discussion here and there (Monarch was also a relatively recent example), about what is going wrong. I heard from several that the EU 261 regulation is ...
8
votes
2answers
2k views

What is the purpose of squawking 7777?

Aircraft use transponders to communicate to ATC their position and status. Some squawk codes are reserved, such as 7700 (emergency), 7600 (communication failure), 7500 (hijacking), 1202 (glider), 1200 ...
0
votes
0answers
46 views

How much fuel did the N Class Navy blimp carry?

The Navy N Class blimp was powered by 2 Wright R-1300 Cyclone 7 radial engines and was able to cross the Atlantic and back again without refueling. How many gallons of fuel did it carry for a maximum ...
5
votes
2answers
175 views

What do you squawk when multiple conditions apply?

There are three standard transponder codes for exceptional situations: 7500 (hijacking), 7600 (radio failure), and 7700 (general emergency). Which code do you use if multiple situations apply? For ...
1
vote
4answers
69 views

Would a propeller extracting air from a cylinder with holes in it be an ideal lift apparatus for a VTOL aircraft?

I am wondering if enough lift can be created for a VTOL aircraft using a propeller that is extracting air from a cylinder which is closed at one end and has holes in the top half of the cylinder. ...
10
votes
1answer
776 views

Can anyone identify the plane in this old photo?

It belonged to my uncle. May have been 1930s vintage.
1
vote
2answers
241 views

Is it common for panels on a plane's body to not be perfectly aligned?

I was recently on a RyanAir flight. As far as I know, they use Boeing 737. When boarding, I noticed a that one of the panels' edge, roughly where the head / chest part of the logo is, was sticking ...
0
votes
1answer
170 views

Why B-52 was not re-engined as a more efficient 4-engine? [duplicate]

Why B-52 was not re-engined as a more efficient (also for maintenance) 4-engine but is still an 8-engine aircraft? In history, almost all others models were re-engined with new engines also quite ...
4
votes
1answer
223 views

What aircraft model is on this old photograph?

I would be grateful if anyone could identify this - Copyright Real Photographs Co. No. 750
3
votes
3answers
408 views

Can a 777X legally be ferried with one or both wingtips folded?

The 777X family (777-8/-9/-10) features wingtips that fold up on the ground to let the aircraft fit in tight spaces. These have to be extended and locked in place before a revenue flight can take ...
1
vote
0answers
27 views

Any FAA CFII (A) in Ontario/Quebec? [closed]

I'm in the process of converting my FAA IR & I need to complete a IPC in order to meet the prerequisites, I've called almost every flight school in the Greater Toronto area and had no luck.
2
votes
1answer
190 views

What is the procedure to replace carpets in airliners?

Are all the seats removed, as well as trim and baseboard, before the carpet is replaced? If so, how is reinstalling the seats laid out; do they feel for the boltholes? Are the seats bolted on top of ...
2
votes
1answer
100 views

Turbofan engine 2 spool - Turbine drives the compressor or Starter drives the compressor [duplicate]

I have read somewhere regarding turbofan engine 2 spool that says "LP or HP turbine will drive the LP or HP compressor" "During engine starting, the starter will drive the HP compressor via the ...
4
votes
1answer
159 views

How difficult is it to design a high bypass turbofan given a military derived core?

Suppose one of the big-threes is given a military low-bypass turbofan core, how difficult would it be to produce a design centered around this core that matches the competitive performance of a ...
4
votes
0answers
217 views

When does a passenger plane leave the cruising phase?

I have Flightradar24 data here. Which are in the following structure. ...
3
votes
2answers
208 views

How do I translate this propeller start procedure into English?

I'm translating a documentary from Hungarian to English. There is a scene where the pilot of an aeroplane with a propeller is preparing for take-off. He says (seemingly into a 2-way radio) two short ...
3
votes
2answers
148 views

Is it allowed to exit the runway by opposites High Speed Taxiway?

Is it allowed to exit the runway on a High Speed Taxiway to the opposite side? (see red line in image below). Assume the situation allows it, like airplane limits, airport congestion, weather, etc.
5
votes
4answers
2k views

What are some Anti-icing solutions for small planes without an on-board system?

When flying during the winter, is there anything I can do to increase my margin of safety, such as anti-icing fluid? I've heard of people spraying their aircraft with propylene glycol, but am curious ...
0
votes
1answer
82 views

How do I distinguish 2 fixes with the same name? [duplicate]

I see two fixes in the CIFP file that have the same name PERSN. Given 2 fixes that have the same name but are located in different regions (defined by ICAO code) ...
0
votes
0answers
72 views

pre-departure sequence, how to increase number of flights in the sequence

If I have number of flights ready to depart (valid TOBT) if I want to increase the number of flights in the queue by adding flights in the gaps between any 2 flights whats the minimum seperation that ...
-2
votes
0answers
46 views

Military and Civilian Micro/Nano Aerial Vehicle [closed]

My purpose is to get information about the key differences between military and civilian mav's. The differences I want to know is in terms of their requirements. I don't need technical details, like ...
3
votes
1answer
189 views

Are all engines fan blades made out of titanium?

I was wondering if all engine fan blades are really made out of titanium.
0
votes
1answer
89 views

What's the difference of Vs from Vs0 or Vs1?

Vs: Stall speed or minimum steady flight speed for which the aircraft is still controllable Vs0: Stall speed or minimum flight speed in landing configuration. Vs1: Stall speed or minimum ...
0
votes
2answers
159 views

What is the procedure to turn an airplane when it flying? [duplicate]

As far as I know, there are two part devices that involved when turning an airplane when it flying: aileron and rudder. How they work? Which one is first over another when turning/banking? In this ...
29
votes
3answers
7k views

What is this object in the cockpit of an ultralight?

This is a tool (probably) in on an ultralight airplane. Initially I guessed that it is a tilting meter (to level between right and left), but seems it is not as it just a vertical tube filled up with ...
2
votes
1answer
242 views

Are cargo aircraft ever ferried empty?

If the amount of cargo is not evenly distributed across a network a freighter will sometimes have to fly a route not loaded to capacity. Do cargo freighters ever have to be ferried empty to alleviate ...
1
vote
1answer
78 views

Is an Aileron Roll Easier Done Opposite The Rotation Of The Plane's Propeller?

We all know helicopters have tail rotors because they would spin out of control thanks to Newton's third law. That got me thinking, would a single propeller plane have an easier time doing an Aileron ...
17
votes
3answers
6k views

How does the F-35B not flip over during transition?

As the engine nozzle rotates, the lift-fan cannot. Wouldn't this imbalance of moments around the center of gravity result in the F-35 pitching up onto its back? As can be seen at 5:14 in this video: ...
3
votes
2answers
312 views

What are the consequences of touching down at too low of a speed?

The consequences of a high speed touchdown / high vertical speed are very much obvious. However, what will the consequences be of a low speed touchdown? How severe are they (if any)?
1
vote
2answers
172 views

Flying coworkers with a commercial pilot's license (USA/FAA)

I will soon have my commercial pilot's license, and work full-time in a company and role unrelated to aviation. As a private pilot under FAA part 61.113b, I know that I can fly myself to conferences ...
3
votes
1answer
150 views

Can a turbofan engine have less noise so that it doesn't disturb our ears?

A few years back I have seen that Pratt and Whitney 's Geared Turbofan Engine(GTF) has reduced it's noise levels to about 50%. But recently I was having a discussion with a friend and he told me that ...

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