All Questions
24,972
questions
2
votes
1
answer
143
views
How to fill out the Nav Log when reaching set heading point before the top of climb from the departure airport?
My current scenario is that I am flying from airport A to airport B. I need to reach 8000ft from sea level but it takes 22nm horizontally to reach that altitude and my first set heading point is 12nm ...
- 21
1
vote
0
answers
78
views
Is my understanding about Balanced Field correct?
We have two definitions:
Balanced Field where Takeoff Distance Required = Accelerated Stop Distance Required
Balanced V1 = This is the speed where on a balanced field length (TODR=ASDR) if we have ...
- 151
1
vote
0
answers
69
views
Obstacle clearance altitude and decision height
can someone explain does OCA that is written in charts coresponds to DA for airlines (its the same altitude), or does airlines choose different DA for example CAT I approach ?
- 21
0
votes
1
answer
64
views
Manifold Pressure System
Hi to all. I read about how MAP works and have a question. Do constant speed planes like the c182 or pa44 have an additional Venturi (apart from the one in the carburetor) in the induction system past ...
- 151
8
votes
2
answers
1k
views
What is this (possible) small jet trainer?
Photographed just now (10/18/2023) near Ellington Field, Texas.
Hunting around on some aircraft pages didn't turn up a match.
I bumped the contrast up to see features better.
- 2,154
0
votes
1
answer
87
views
What are the effects of whiteout (snow) and brownout (sand/dust) on helos?
Is there any other effect besides low visibility?
Both seem to show very similar conditions.
0
votes
1
answer
163
views
For transporting 4000kg of cargo via Mi-17 helicopter for 54 km, how much maintenance cost per flight hour will be incurred?
In a disaster response case study, I am using Mi-17 helicopters for relief supplies transportation in a challenging logistics environment.
Regarding this, I want to check my estimates with the actual ...
0
votes
2
answers
181
views
What approach method does tower possible to give me?
I'm a student pilot. ATC is a difficult part for me.
So far when I fly cross-country, the only VFR approach I hear from ATC is "straight to runway XX". Is there any other approach the ATC ...
- 333
0
votes
2
answers
169
views
Is it legal to start a non-profit that anyone can donate to which can pay the expenses for donated medical/animal transport flight?
I know this is a question that a lawyer should be helping out with, but I figured I would start here just to point me in some different directions.
I am interest in doing flights to ferry passengers ...
- 11
2
votes
2
answers
117
views
How can airport elevation be different in various approach charts?
If you see KRDM RNAV Y RWY 29 - airport elevation is 3080.
But in RNAV Z RWY 29 - airport elevation is 3082.
How it can be different for approaches to the same airport and runway?
- 21
0
votes
1
answer
121
views
How much fuel cost will be incurred for transporting 4000kg of cargo via Mi-17 helicopter for 54 km?
I am working on a logistics case study in which I am using Mi-17 helicopters for transportation of relief to the affected areas in a disaster.
In this regard, I want to check my estimates with the ...
0
votes
0
answers
147
views
What are some of the easter eggs on the FAA pilot license?
I know that the back of the card has a hidden speech along the Wright brother's collars and the Wright flyer's frame. Also, if you shine a black light on the card, there's an (invisible to the naked ...
- 9
14
votes
5
answers
6k
views
For large commercial jets is it possible to land and slow sufficiently to leave the runway without using reverse thrust or brakes
I have long wondered whether its possible (in theory at least) for jetliners under typical loading scenarios (pax and cargo), landing at a normal airport such as LHR to come to a slow enough speed to ...
- 241
0
votes
0
answers
71
views
What percentage of US carriers do fuel hedging?
What is the percentage of US carriers that are hedging fuel? Who are they, other than Delta who still owns a refinery?
0
votes
0
answers
54
views
Why is the minimum climb gradient for V2 Speeds lower than the minimum standard SID climb gradient?
If you look at the standard Net Take-off flight path, the speed an "airliner" should achieve at the screen height is the V2 speed, a speed that ensures a minimum climb gradient in case of an ...
- 742
17
votes
4
answers
3k
views
Landing Wingsuit on Solid Ground or Water
Is it possible to land with a wingsuit on solid ground or water?
What does not count:
Jumping from low height that does not allow to reach terminal velocity
Landing in trees or other objects that ...
- 173
0
votes
1
answer
108
views
What is output by the Seminole's twin alternator system?
The Seminole's alternator system is a 14V 70 amp system. I understand that if one alternator fails, the other one will be able to produce 14V and withstand 70 amps.
When both alternators are operative,...
- 151
0
votes
1
answer
92
views
Why are there altitude differences on the Jeppesen ESB Ankara VOR chart?
What is the reason for the 10 feet difference between ESB dme altitude and profile view? Thanks.
- 101
1
vote
2
answers
234
views
Using an experimental aircraft to carry patients for medical treatment?
I am interested in doing flights for organizations that connect pilots with patients. I am also interested in purchasing a Sling Tsi and I am wondering if those two things can be combined since it is ...
- 11
0
votes
0
answers
69
views
What type of ailerons does the Piper Seminole has?
I understand that the PA44 has differential type ailerons, but do they also have frise type ailerons? Making them a combination of differential and frise type similar to the Cessna 150/152/172 models?
...
- 151
0
votes
0
answers
28
views
Is the Lift required for a steady-state climb and descent equal for the same absolute value of the kinematic climb angle? [duplicate]
Here is my confusion :
I found in my lecture script the following equation for the steady-state climb and descent (wings level)
...
0
votes
2
answers
196
views
Is it safer to fly over 3,000ft for General Aviation?
I have been reading over the UK Airprox annual report of 2021 and it states:
In 2021 – 76% of all events and 83% of all aircraft-to-aircraft events took place at
or below 3000ft altitude.
In 2021 – ...
- 12.5k
0
votes
1
answer
77
views
Why does the INERT SEP take so long to deploy?
I have experience in Microsoft Flight Simulator with the Daher TBM 930. It has an inertial separator, which I use for de-icing in the simulator. I watched a video on it, and I understand how it works, ...
- 315
2
votes
2
answers
154
views
Two Pilots Logging Dual PIC
I have a question regarding two pilots, Pilot A who flies under the hood, and Pilot B who is Safety Pilot. According to the FAA Hicks Letter, Pilot B can be made in charge of safety of flight to log ...
- 21
1
vote
1
answer
113
views
Can an aircraft transmit Mode C when Mode A is in STANDBY or OFF?
I am a software developer in the aviation industry, so I do apologize if my terminology is not correct. What I want to know is - are there any cases in which the aircraft's Mode A is switched to OFF ...
- 13
1
vote
2
answers
141
views
What differences would a helicopter designed to withstand many negative Gs have compared with a normal one?
There are a few helicopters that are able to take negative G's, and to this day only one can actually perform aerobatics (ie. Chuck Aaron's BO-105). The BO 105 is a rigid rotor helicopter that has ...
-1
votes
1
answer
272
views
Height from the ground of aircrafts doors
I'm searching for the height from the ground of these AA/CC doors (front and back)
Boeing 737-800
Boeing 737-8200 (800-max)
Airbus A319
Airbus A320
Airbus A321
Airbus A220
Airbus A340
I know only ...
- 101
2
votes
1
answer
139
views
Why are only discrete SSR codes allotted for aircraft identification?
What happens if we assign a non-discrete squawk code (ending on 00) like 0200?
Is there any particular reason for non-discrete squawk codes to be used only for special purposes and not for ...
- 21
1
vote
1
answer
101
views
I have looked on the Low altitude IFR chart for this information and can not find it listed
Inside the communications box after the name, what does (H), (H)(H), (L)(H), mean?
4
votes
1
answer
1k
views
What type of helicopter is this?
Wondering what kind of aircraft this is. Military or commercial? Photographed nearing island HK (possibly near Wanchai) an hour or two ago.
- 570
1
vote
1
answer
140
views
What are the effects of wing washout and anhedral on induced drag?
I am studying for my ATPL and was curious if and how induced drag varies based on wing anhedral and geometric washout.
I have a basic understanding that spanwise flow affects induced drag since there'...
- 111
0
votes
0
answers
70
views
In an Airbus A-320, when is it appropriate to use: vertical speed mode, the expedite button, and the speedbrake?
When it is appropriate and good airmanship to use Vertical speed on A-320 and where it is written?
Also same questions for the speedbrake?
Also, why do some captains call the expedite push button the &...
- 77
6
votes
2
answers
3k
views
Why is a flat turn less efficient than a coordinated turn?
How I understand a flat (rudder-only) turn:
AOA between relative wind and the fuselage of the airplane causes a sideslip in the direction of yaw.
Vertical stabilizer weathervanes into the relative ...
- 75
2
votes
1
answer
228
views
What is the difference between the numbering of the same gate?
What is the difference and purpose of having two taxilines for the same gate where one would be numbered gate 60 and the other 60A.
(Shown above: KSLC Gate A19 with A19A besides it)
- 23
1
vote
0
answers
68
views
Converting FAA CPL to EASA
Hello I currently live in the USA. I hold a CPL with an IR and I am currently in Multi Engine and getting ready for my check ride. I would like to move to Europe and work for airlines there. However I ...
- 11
1
vote
2
answers
147
views
Cessna 182 Climb Performance
I have this in the POH for a 182P I'm renting. I am failing to understand the lower table on the performance page. It says that for a gross weight of 2,950 at sea level and 59F, I can expect a climb ...
- 111
-1
votes
1
answer
129
views
Human error analysis in general aviation [closed]
can anybody help me with understanding more about the human factors analysis in general aviation Controlled flight into terrain. I am researching on the topic and I would really appreciate any help in ...
0
votes
1
answer
100
views
Difference between velocity potential and stream function?
I am currenty reading Fundamentals of aerodynamics(sixth edition) Jhon Anderson and in sections 2.14, 2.15 was introduced stream function and velocity potential concepts. I understand that both of ...
1
vote
1
answer
81
views
Is the Reference Speed (Vref) the same as the speed at which the aircraft cross the runway threshold in landing phase?
Just a little confuse when I learned about the aircraft classification based on approach speed. Can anyone help me to have an accuracy look about this question?
- 43
3
votes
0
answers
82
views
What was the penultimate flight of the TCA plane that crashed near Vancouver in 1947?
In his 1975 book An Almanac of Words at Play, Willard R. Espy recounts the following:
En route from Montreal to Vancouver in 1947, we sat down in Calgary, where a wire from my boss changed my ...
- 211
10
votes
3
answers
4k
views
Why might a flight have the same departure airport as its destination?
I am not very familiar with the world of air traffic.
Recently I have been granted access to OpenSky Network. As I am trying to understand the "flight" dataset, I have come across a few ...
1
vote
0
answers
121
views
How does pulling back on the yoke make you recover from a flat spin
One method I read here, to recover from a flat spin, is to pull back on the yoke or stick, which would push the tail down when facing to the back, and up a bit when facing forward. I assume, if the ...
- 313
3
votes
1
answer
211
views
What is the theoretical justification for "proportional navigation (PN)" guidance law?
In missile guidance theory, one of the fundamental guidance algorithms is the so-called "Proportional navigation", which directs a constant-speed missile into a collision course with the ...
- 131
0
votes
2
answers
198
views
Specific Squawk Codes Information
First time poster.
Can anyone tell me please what these 3 codes mean in simple language.
3462
2042
2747
Many thanks
1
vote
1
answer
70
views
Reasons for ADSB PAPR Report Altitude Errors
We have just test flown a new 1090 ADSB installation, using Apareo Stratus ESG Transponder, which has internal GPS.
The PAPR for the test flight show both Baro Alt and Geo Alt errors in the Missing ...
- 41
0
votes
1
answer
58
views
Pitching moment due to control surface deflection
How can you predict the change in lift and pitching moment produced by control surface at a certain deflection angle?
I am aware that the effectiveness of the control surface is affected by ...
- 23
4
votes
3
answers
2k
views
Aside from simulated dogfights, do F-22 Raptors actively participate in live fire/target practice using live munitions?
I am aware that the F-22 was developed specifically for the air-to-air superiority role, although it has previously proven its worth for multi-role missions (in performing ground strike missions ...
- 115
1
vote
1
answer
152
views
Is the pitch an attitude indicator displays in relation to the ground, or is it in relation to the current aircraft bank?
In the old analog, vacuum powered attitude indicators, does the displayed pitch axis indicate the pitch in relation to the current bank angle, or in relation to the ground (true level)?
To put it ...
- 1,266
0
votes
1
answer
103
views
Pressure coefficient over a flat plate against its length/width ratio
We conducted an experiment to measure the surface pressure distribution around a flat plate (dimensions below). The plate has 104 equally distributed tappings as shown below.
Where the arrows ...
3
votes
1
answer
183
views
What are the effects of a corrugated surface on spanwise flow deviation, for a swept back flying wing?
Considering a Ju-52 wing in some hypothetical swept back flying wing configuration using the same strucural design as the Ju-52.
What would be the effects of that corrugated skin, regarding spanwise ...
- 4,454