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Questions about phases of flight where an aircraft gains altitude.
85 questions
3
votes
1
answer
86
views
Is Vy a function of Pressure Altitude Only?
Preface:
This question is about Vy in KIAS - not Rate of Climb. I understand that ROC is a function of pressure altitude and temperature (density altitude)
This question is regarding knots INDICATED ...
- 494
3
votes
6
answers
1k
views
Why doesn't pitching up above vx result in a better angle of climb
Like technically, you could pitch up higher. I have drawn a (greatly exaggerated) picture to show what I mean.
3
votes
1
answer
388
views
What's the minimum climb gradient when the MEA changes without an MCA?
If the MEA changes at a navaid, fix, or waypoint along an airway, and there is no MCA, you can begin the climb to the new MEA at the fix. I was wondering what minimum climb gradient is assumed by the ...
- 629
3
votes
2
answers
298
views
Are these IFR Pattern colors following a standard?
I recently came across a series of IFR practice patterns such as the example below that use red for descent and blue for climbs.
Are these colors standard in the IFR world or was it just made up for ...
- 385
1
vote
1
answer
171
views
Climb angle relationship to excess thrust
In the PHAK, Chapter 5 Aerodynamics, the following statement is made regarding forces in a climb:
The thrust required for a stabilized climb equals drag plus a percentage of weight dependent on the ...
- 61
0
votes
2
answers
262
views
Is 200FPNM required up to the MSA or to the MOCA in the PLMTO3 SID
On the PLMTO3 SID out of KCHS, Rwy 15 has standard takeoff mins.
From the AIM 5-2-9.e.1.
Unless specified otherwise, required obstacle clearance for all departures, including diverse, is based on the ...
- 944
1
vote
3
answers
397
views
How can I control the flight path angle (or the ROC) with throttle in Simulink?
I need to implement an autopilot for my 3DoF (longitudinal motion) aircraft model in Simulink. My model is nonlinear, but linearizing it in Simulink hasn’t been an issue.
I’m trying to develop a ...
- 55
2
votes
1
answer
459
views
For a fixed density altitude, how does climb performance depend on pressure altitude?
Below is the climb performance from the 1978 Cessna 152 POH, which I've plotted as climb rate versus density altitude. It shows that higher pressure altitude gives decreased performance even when the ...
- 19.4k
0
votes
3
answers
172
views
How does changes in Power vary the aerodynamic forces on an aircraft?
When we make changes to the Thrust by adding or removing power. In what way does it affect the other forces? As Power controls Rate of Climb or Descent of an aircraft, How is it acting on the other ...
- 607
2
votes
1
answer
2k
views
Why does the climb angle of 737-800 peak shortly after take-off before reducing again?
I am doing a report on 737-800 and I have questions about its climb angle performance;
I am plotting a climb angle VS altitude graph for the aircraft, why does the climb angle take off at an angle and ...
- 21
5
votes
1
answer
717
views
Steepest climb a wingsuit pilot can achieve?
There was a question yesterday about landing in a wingsuit; the main issue is, of course, the high speed, both vertically and horizontally. One way to reduce speed is flaring; another would be to gain ...
- 1,592
1
vote
2
answers
916
views
Determine Vx and Vy from other climbing rate datas
I am developing a small program, working with Microsoft Flight Simulator 2020. For now, I can show my takeoff graph which display the altitude on the y axis and the distance in x axis. I would like to ...
- 13
-1
votes
4
answers
889
views
How is Vx speed and Vy affected when climbing?
If my speed for best angle of climb is 60 and rate is 79, if I kept a 500 fpm climb to my cruise altitude of let’s say 4500, would those speed change?
The flights are being done on separate occasions.
- 925
6
votes
2
answers
2k
views
PoH says airplane climbs steeper at higher weight. Why? How?
Here's a puzzle. Looking at the PoH of my aircraft, it appears that the climb angle (distance to clear a 50 foot obstacle, starting from the end of the ground roll) is shallower at lower weight than ...
- 185
3
votes
0
answers
175
views
How long does it take the Predator UAV to reach cruise altitude?
For applications such as UAVs, especially military ones like the Predators and Reapers, do the same regulations as light aircraft apply due to their structure?
Or, does the absence of a human operator ...
