Endurance & maximum range speeds

  • Thread starter Thread starter NTW
  • Start date Start date
  • Tags Tags
    Maximum Range
AI Thread Summary
Maximum endurance and maximum range speeds are related by the factor 3^0.25, but a clear derivation is sought. A provided MIT article addresses the origin of this relationship. However, the discussion highlights that the dynamics can vary between power-producing and thrust-producing powerplants. Additionally, real-world applications of these principles are more complex than theoretical models suggest. Understanding these nuances is essential for accurate analysis in aviation contexts.
NTW
Messages
302
Reaction score
28
Hello all...

I know that it can be derived, from first principles, that maximum endurance and maximum range speeds are related by the factor 3^0,25.

But I haven't been able to find a derivation. Could anyone here help...?

Thanks in advance...
 
Engineering news on Phys.org
I think it's different for power-producing and thrust-producing powerplants.
 
Aero_UoP said:
I think it's different for power-producing and thrust-producing powerplants.

The link answers the OP's question about where the "magic number" came from.

But nothing about aircraft is that simple in real life.
 

Thread 'Bubble formation in 4 mm gap vessel'

How did you find PF?: Via Google search Hi, I have a vessel I 3D printed to investigate single bubble rise. The vessel has a 4 mm gap separated by acrylic panels. This is essentially my viewing chamber where I can record the bubble motion. The vessel is open to atmosphere. The bubble generation mechanism is composed of a syringe pump and glass capillary tube (Internal Diameter of 0.45 mm). I connect a 1/4” air line hose from the syringe to the capillary The bubble is formed at the tip...
View full post »
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
View full post »

Thread 'Find 3D Printer & Software Resources for Prototype Creation'

I'd like to create a thread with links to 3-D Printer resources, including printers and software package suggestions. My motivations are selfish, as I have a 3-D printed project that I'm working on, and I'd like to buy a simple printer and use low cost software to make the first prototype. There are some previous threads about 3-D printing like this: https://www.physicsforums.com/threads/are-3d-printers-easy-to-use-yet.917489/ but none that address the overall topic (unless I've missed...
View full post »

Similar threads

Maximum bending moment and maximum deflection of the spring?
Replies
5
Views
2K
How to determine air velocity in open ended tube?
Replies
9
Views
2K
Cubical Pressure Vessel - Maximum Pressure Computation
Replies
5
Views
2K
What torque-speed curve should I use for my stepper motor selection?
Replies
14
Views
2K
Mechanical Advantage on Gym Machines
Replies
3
Views
205
What's the most likely cause for this carbon seal crack?
Replies
8
Views
213
How to calculate maximum gearbox input torque
Replies
2
Views
5K
Why is my calculation for a rocket's maximum range incorrect?
Replies
21
Views
2K
Automotive How to plot a power and torque graph for an engine?
Replies
18
Views
6K
Dimensionless Radius: What is the Range?
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top