Endurance & maximum range speeds

  • Thread starter Thread starter NTW
  • Start date Start date
  • Tags Tags
    Maximum Range
Click For Summary

Discussion Overview

The discussion centers around the relationship between maximum endurance and maximum range speeds in aviation, specifically exploring the derivation of the factor 3^0.25 that connects these two speeds. Participants are seeking clarification and deeper understanding of this relationship.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant requests a derivation of the relationship between maximum endurance and maximum range speeds, indicating a desire for a foundational understanding.
  • Another participant provides a link to an article that may contain relevant information regarding the derivation of the factor.
  • Some participants propose that the relationship may differ based on the type of powerplant, suggesting that power-producing and thrust-producing engines could yield different results.
  • A later reply emphasizes that while the link may address the origin of the factor, the complexities of real-world aircraft performance complicate the simplicity of the relationship.

Areas of Agreement / Disagreement

Participants express differing views on the applicability of the factor across different types of powerplants, indicating that there is no consensus on whether the relationship holds universally in practical scenarios.

Contextual Notes

The discussion highlights potential limitations in understanding the relationship, including the dependence on specific definitions of powerplants and the complexities involved in real-world applications that may not align with theoretical models.

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.
 

Similar threads

Replies
5
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
14
Views
3K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 8 ·
Replies
8
Views
1K
  • · Replies 2 ·
Replies
2
Views
6K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 21 ·
Replies
21
Views
3K