Talk:Variable-pitch propeller (aeronautics)

Horsepower versus velocity?
Actually, the horsepower needed is more for a given velocity, (with higher RPM), at a shallow pitch setting. Just like in high gear. The power needed for given RPM is indeed lower at a shallow pitch. Eslonim 08:32, 1 October 2007 (UTC)


 * At shallow pitch setting, just like in low gear, LESS horsepower is needed to drive the prop, not MORE as the article states. Please correct if you agree with my reasoning. —Preceding unsigned comment added by LMF5000 (talk • contribs) 16:10, 20 September 2007 (UTC)

The reference link pointed to a page that no longer exists. I searched the site for an alternate page and replaced the old link with the one that seemed most appropriate.Es330td 12:40, 8 July 2006 (UTC)

Constant speed propeller is the common English usage in the US. CSU may be used elsewhere in the English speaking world.

The comment about LSA (light sport aircraft) regulations prohibiting CS props might be edited. The FAA wrote the LSA rules --everything in the regulations is aimed at keeping this simple (for manufacture, maintenance, and pilot operation). So, no CS props fits in with this thinking. 207.178.98.3 23:31, 30 April 2007 (UTC)

Merge with Variable-pitch propeller article?
Should this article be merged with the article on Variable-pitch propellers? After all, aren't Constant Speed (or Constant Velocity) Propellers just a name for variable-pitch propeller when used in a certain application, or am I mis-understanding the difference? Srajan01 (talk) 04:39, 10 June 2008 (UTC)
 * A constant speed propeller is a specific type of variable pitch propeller. Most of the time "controllable pitch" means that the pitch angle is changed directly by the operator. Constant speed means that the operator sets a specific rotational speed, and then an automatic controller varies the pitch angle of the blades to vary the load on the propeller and thus hold it at the specified speed. Still, they're similar enough that I support the merge. Both articles are fairly short as is. Shreditor (talk) 04:53, 10 June 2008 (UTC)

some references
if nobody can make this article more reasonable, here's a reference for constant speed props:

http://www.avweb.com/news/pelican/182082-1.html

and on a related note -- manifold pressure:

http://www.avweb.com/news/pelican/182081-1.html

--Kvuo (talk) 05:04, 1 November 2008 (UTC)

No history
There is no description of where this idea originated, or who invented it Landroo (talk) 08:11, 28 October 2013 (UTC)

Not copyright violation
This article is not a copyright violation, because I am the author of the text of: www.propellergovernor.com/how-it-works.

Best Regards Jaromir Vokal Igad (talk) 11:07, 22 April 2008 (UTC)

Minor edit in references
The linked URL originally found for cite-9 (http://www.silence-twister.co.uk/silence%20twister%20propeller.htm) now redirects to a site that contains no relevant material for this topic. A new link was identified (http://www.revolvy.com/main/index.php?s=Silence%20Twister&item_type=topic), and substituted for the old link. NOTE: An editor with expertise on this aircraft topic (that would not be a description of me, fyi) should evaluate the new link and consider replacing it with one more suitable, if expert judgment leans in that direction. Sharl928 (talk) 00:34, 1 December 2015 (UTC)

Wallace Turnbill
He invented it, worth mentioning. I'd edit it in but I have to get some sleep. Maybe tomarrow.Brando26000 (talk) 18:42, 2 November 2009 (UTC)

Variable pitch propeller
I propose that "variable pitch propeller" is a better page title than "controllable pitch propeller". My experience is that "variable pitch propeller" is by far the more commonly used term; and anyway, two of the examples (the VProp and the AutoProp) are not controllable but are automatically self-adjusting variable pitch propellers. I have never heard the term CPP in the context of aircraft props; in aviation, the terms used are variable-pitch props or constant-speed props. Arrivisto (talk) 18:31, 16 June 2013 (UTC)

Common does not mean correct. A controllable pitch propeller may change its pitch. A variable pitch propeller has a curved blade. They are different terms. — Preceding unsigned comment added by 208.114.129.89 (talk) 12:47, 8 June 2019 (UTC)

Spencer Heath
I think this man deserves some mention in the article, even if only to point at his wikipedia page. — Preceding unsigned comment added by 97.123.115.15 (talk) 18:44, 29 June 2016 (UTC) 97.123.115.15 (talk) 18:47, 29 June 2016 (UTC)

Role of Woodward Governor?
There is a display in the Smithsonian Institute on Woodward Governor that claims Woodward created "the first successful aircraft propeller governor" in 1934. How does this fact weave into the history of variable pitch propellers?

https://www.si.edu/object/woodward-propeller-governor-model-pw-34:nasm_A19740600000 Retrodj1 (talk) 20:58, 26 July 2023 (UTC)

"Constant-speed propeller" redirect
So basically, searching "constant-speed propeller" will just result in a redirect to this article. However, it redirects to the article, not the subheading called "Constant-speed propellers". I want to change the redirect for it to redirect to the subheading. RandomGuy3114 (talk) 6:09, January 4, 2024 (UTC). RandomGuy3114 (talk) 06:09, 4 January 2024 (UTC)


 * Fixed. I have amended the redirect as you have requested. Thanks for drawing it to our attention. Dolphin ( t ) 07:34, 4 January 2024 (UTC)