All Questions

Do small airports or regional airports with just a couple of flights per day, maybe even from different airlines all have on-site aircraft maintenance staff? It hardly seems economical to have ...

B747 has a sweep angle of 37 deg and A380 has a sweep angle of 33 deg. If the main reason for sweep is to delay compressibility effects and increase operating Mach number, why does B747 cruise at a ...

I know that there are many non-commercial runways that do not have an active ATC on-duty, and that many small aircraft use these runways for takeoff and landing, but I never actually learned what the ...

To be specific with the question, I would like to know if if it is possible to continue flying in the event of total loss of electrical power. Obviously, I know this entails the shutting down of ...

I've read that some radars can detect stealth aircraft or aircraft with low radar cross section but are not powerful enough to allow a "weapons" track or allow a missile or another aircraft ...

I few queries, please answer: - 1) if the cost to become pilot is so much high around INR 50 Lakh then, how much is the salary? (Is salary on basis per flight or per month) and How much? 2) Can I do ...

From all the missiles/guide bombs I have come across, I've always observed that a symmetric airfoil is used for both the wing and tail. Why not have a cambered airfoil for the wing and a symmetric ...

I'm looking at the obstacle chart and the aerodrome chart (pdf; source: Hellenic Civil Aviation Authority) for LGLM (Lemnos, Greece), which serves both military and passenger aircraft. The runway ...

I have a real issue with determining the centre of gravity for the y axis of an aircraft, especially with selecting the reference/datum point and how to measure the displacement. Please I would really ...

So in looking at the instrument currency requirements for the FAA (6 approaches, holds, intercepting & tracking courses), I'm having difficulty nailing down what constitutes a hold. Based on AIM 5-...

I want to design a turboprop aircraft. I know all the design parameters such as lift, thrust, weight etc at a given flight stage. I want to know what the size of the propeller should be.

I am puzzled by the spikes on Ingenuity's blades (marked by a red box in the image below). What is their function ? Are these special to Ingenuity? Why don't they collide during high RPM? Don't they ...

I had a question regarding thrust calculation for an aircraft during cruise. For an aircraft flying at a constant cruise altitude and a constant Mach number (level unaccelerated flight), what exactly ...

An EASA ATPL question/answer insists, counterintuitively, that a twin which loses an engine and must drift down will find its least rate of sink at Vxse. I've been trying to understand this, but haven'...

How are foam cores shaped for tapered and swept back wings? I understand that many constant chord, constant thickness rectangular wings use the same sized airfoil shape from root to tip. Let's assume ...

TL; DR using flaps to directly control sink/climb rate near ground = simpler and faster response = easy to fly airplane? Rotating is the pitch up during takeoff that causes the aircraft to leave the ...

Some countries are being touched by American or European sanctions. Such sanctions affects the possibility to import spare parts for American-made or European-made aircrafts (e.g. Iranian F14 and ...

When passing 100 ft RA, the THS is frozen and the normal flight mode changes to flare mode as the aircraft descends to land. The flare mode is essentially a direct stick-to-elevator law without auto ...

Why did "only" two Max 8 accidents occur? Before the grounding, there must have been at least dozens but surely 100s if not 1000s of flights with this model. How come the vast majority of ...

I'm looking some information about the so called Jozza Bombsight used for example on board of the Savoia-Marchetti SM-79 during WWII. Thank you

If the other traffic is at the same level, and neither climbing or descending. Will the RA say "CLIMB" or will it say "DESCEND"? How will it be decided and what are the ...

I have 7.72 acres in the Southern California Desert. It's outside of Palm Springs Ca. My land was granted to My Grandfather in 1961 as a homestead. The patent states that I have ALL Rights, Privileges,...

Pilatus PC-12 has a constant speed propeller, but it does not have a prop control lever in cockpit, just a power lever and small fuel on/off lever. So how does it determine the prop RPM? Does it ...

For old aircraft like WW2-era fighters, are such reports ever formally declassified for academic use? Where can I find them?

In which part of the flight does a plane reach maximum lift? My logic: I think a plane reach maximum lift in a horizontal flight, when a plane start rolling on a runway, landing gear produce more ...

I'm using a lighter materials to rebuild plane, to cut down plane weight to 56kg and a 1.2m 3blades propeller.

For example, if climbing (or descending for that matter) at 3500 fpm, will the AP switch to ALT ACQ mode at the same point it will as when climbing or descending with 1000 fpm? Or does the point of ...

As it's said here(APS-3200 training manual (pg 268)): we need 1 hour for cooling after 3 consecutive attempts for starting the APU. But why? why not after each attempt? and why 1 hour? is it valid ...

I was reading the APS-3200 training manual (pg 268) and faced this part: What's the starting envelope of APU? What does mean "Normal start throughout the operating envelope: minus 300 m to 11900 ...

Some friends and I are creating blueprints for a theoretical helitrain tank(not sure what else to call it). It’s meant to be a train-tank-helicopter hybrid. Effectively a chain of flying tanks with ...

What is the use of Wing root seals? What kind of leaks are possible without having wing root seal and if the seal is broken what kind of issue can airplane faces?

For the analysis of the landing distance using Landing Runway Length B787-800 at sea level it is more appropriate to use the wet runway curve without adjustment or the dry runway curve adjusted by 15%?...

What is the minimun length required for the runway landing and takeoff of ATR 72-600? obs: altitude of 1000ft at 30 degrees

I have a property in Spain with a big field; is it legal to take off from and land on your own property in a light aircraft?

KADS 072350Z 31030G20KT 13SM SKC 24/02 A2980 I’ve never seen a negative gust factor before. Is that a real thing (and if so, what does it mean), or did someone just make a typo?

I've been looking for an image or model of an A380's avionics bay for a scene in a novel I'm writing. I'd like to showcase the advanced tech that the plane uses and have reference material if it gets ...

What component of an aircraft generates the electric power to start the aircraft's engine? For a Rotax 912 engine, I think the magneto generates the electricity, but I'm not sure; I also think about ...

Picture should have been taken after or during the end of World War II, probably close to Marrakech French base (but that is not sure). Can anyone tell us what these planes are? My grand father could ...

Around timestamp 1:21-1:25, some "books/documents and movies" are mentioned. Could anyone please suggest such books, documents and movies? Thanks in advance.

I need a good overall PDF or link that will give me overall information about the aerodynamic characteristics of the A320 Family (Airfoils, stability, etc.)

There is a trackball-looking thing on the side of F-35's side stick. What is this? Is this actually a trackball? There is also another round looking "button", although a bit different from ...

The selected answer to this question refers to the applicability of part 23 to aircraft of nine passengers or less. Other countries certified the 208B with as many as fourteen passenger seats, using a ...

In this hypothetical scenario, a new jet engine prototype is being tested in 7th generation fighter aircrafts, the hybrid engine itself is quite normal, but they added high temperature superconductors ...

Is the take-off distance increased by a direct crosswind?

Today, I was reading this news: It’s so hot in Phoenix that airplanes can’t fly And then this article: Why Phoenix's Airplanes Can't Take Off in Extreme Heat In this article; we see this line: ...

How does the range of HF communications differ with frequency used? Is it less frequency more range, or more frequency less range?

I want to be able to engage autopilot right away at a safe altitude, while taking advantage of flight level control at Vy for the climb. Heading is set for the runway. I’d switch to NAV mode when I ...

I built this Airfix kit when I was younger, and don't know what it is. I'd love to know!

I am trying to understand why electric propeller governors are not (yet) prevalent given that they offer the ability to control the RPM with high accuracy. What is the typical architecture for an ...

According to the Wikipedia, V-22 Osprey can lift 20,000lb of internal cargo, whereas it is able to carry only 15,000lb externally by dual hook. I wonder why there is a difference between external and ...