Talk:1972: Autogyros - Revision history

PeterMortensen: Added reference to external discussion.

2018-03-30T12:46:13Z

Added reference to external discussion.

NiceGuy1 at 07:19, 30 March 2018

2018-03-30T07:19:37Z

Mr. I at 00:51, 30 March 2018

2018-03-30T00:51:57Z

172.68.174.94: Answering "cannot hover" - no, it can't - by the usual definition of "hover."

2018-03-28T03:21:55Z

Answering "cannot hover" - no, it can't - by the usual definition of "hover."

N0lqu at 20:14, 27 March 2018

2018-03-27T20:14:46Z

Ianrbibtitlht at 17:04, 27 March 2018

2018-03-27T17:04:08Z

Kosak2000 at 15:58, 27 March 2018

2018-03-27T15:58:10Z

162.158.154.43: Descent

2018-03-27T14:29:11Z

Descent

172.68.26.71: ADDED A COMMENT, FORMATED

2018-03-27T13:54:04Z

ADDED A COMMENT, FORMATED

Gbisaga at 12:56, 27 March 2018

2018-03-27T12:56:46Z

← Older revision		Revision as of 12:46, 30 March 2018
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	I feel like the "Not popular in the U.S., popular in Europe" should say "Self explanatory", then link to a page showing stats about popularity. (I can't find anything quickly, and am in a hurry right now). [[User:NiceGuy1\|NiceGuy1]] ([[User talk:NiceGuy1\|talk]]) 07:19, 30 March 2018 (UTC)		I feel like the "Not popular in the U.S., popular in Europe" should say "Self explanatory", then link to a page showing stats about popularity. (I can't find anything quickly, and am in a hurry right now). [[User:NiceGuy1\|NiceGuy1]] ([[User talk:NiceGuy1\|talk]]) 07:19, 30 March 2018 (UTC)
		+
		+	;Stack Exchange question
		+
		+	FYI: This xkcd was a subject on the Avionics Stack Exchange site: ''[https://aviation.stackexchange.com/questions/49894 Is this XKCD comic list about autogyro features accurate?]'' --[[User:PeterMortensen\|PeterMortensen]] ([[User talk:PeterMortensen\|talk]]) 12:46, 30 March 2018 (UTC)

← Older revision		Revision as of 07:19, 30 March 2018
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	;Section Headings		;Section Headings
	Re-converted section headings to bold labels in discussion content - please avoid re-adding them because they can interfere with auto-layout templates in the explainxkcd page system. [[User:Ianrbibtitlht\|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht\|talk]]) 17:04, 27 March 2018 (UTC)		Re-converted section headings to bold labels in discussion content - please avoid re-adding them because they can interfere with auto-layout templates in the explainxkcd page system. [[User:Ianrbibtitlht\|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht\|talk]]) 17:04, 27 March 2018 (UTC)
		+
		+	I feel like the "Not popular in the U.S., popular in Europe" should say "Self explanatory", then link to a page showing stats about popularity. (I can't find anything quickly, and am in a hurry right now). [[User:NiceGuy1\|NiceGuy1]] ([[User talk:NiceGuy1\|talk]]) 07:19, 30 March 2018 (UTC)

@@ Line 36: / Line 36: @@
 The 1981 movie ''Mad Max II'' prominently featured an autogyro as part of the action. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 17:04, 26 March 2018 (UTC)
 Also James Bond 007 flew the autogyro 'Little Nellie' in " You Only Live Twice". Reputedly prompting a bit of an autogyro revival. [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 17:46, 26 March 2018 (UTC)
 First of all, I've converted section headings to bold labels - we should avoid them in discussion content. Secondly, my take on how to order the labels around the autogyro is down the left side, then across the top, and finally down the right side. I realize it's entirely up to the reader, but that order makes the most sense to me instead of clockwise - the text on the lower-right seems to be climactic in a strange Randell-esque way. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 18:15, 26 March 2018 (UTC)

← Older revision		Revision as of 03:21, 28 March 2018
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	I would assume that autogyros ''can'' hover in some conditions (i.e. in a headwind). This is the same argument as the one for "Land Vertically?"; namely that it's the wind that matters. Is Randall wrong here or is this just an impractical edge case? Here is a [https://www.youtube.com/watch?v=DU7uAEvV_PU YouTube video] [[User:Kosak2000\|Kosak2000]] ([[User talk:Kosak2000\|talk]]) 15:58, 27 March 2018 (UTC)		I would assume that autogyros ''can'' hover in some conditions (i.e. in a headwind). This is the same argument as the one for "Land Vertically?"; namely that it's the wind that matters. Is Randall wrong here or is this just an impractical edge case? Here is a [https://www.youtube.com/watch?v=DU7uAEvV_PU YouTube video] [[User:Kosak2000\|Kosak2000]] ([[User talk:Kosak2000\|talk]]) 15:58, 27 March 2018 (UTC)
		+
		+	:It can ''hover'' in the sense that any fixed wing airplane can hover - by having a fast enough headwind. I've "hovered" in a Piper Cub before - even flown backward! But that isn't the conventional use of "hover" by aircraft pilots. Hover it meant to refer to purposeful powered flight over a stationary spot 'with no wind'. Such as a Helicopter can do. An autogyro cannot do this, as it must maintain forward movement (compared to the air) to maintain lift. However, with some "trick piloting," you ''can'' vertically land an autogyro. You're not hovering because you're not holding your altitude, but if you come in with some forward speed and high-ish descent rate, you can flare a few feet above the ground to a horizontal stop, turning your formerly forward speed in to slowing the descent rate to an acceptable descent rate to land at. [[Special:Contributions/172.68.174.94\|172.68.174.94]] 03:21, 28 March 2018 (UTC)

	;Trivia		;Trivia

@@ Line 41: / Line 41: @@
 "Powered parachute"? Sounds to me like [https://en.wikipedia.org/wiki/Paramotor this awesome thing]. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 08:50, 27 March 2018 (UTC)
 ;Section Headings
 Re-converted section headings to bold labels in discussion content - please avoid re-adding them because they can interfere with auto-layout templates in the explainxkcd page system. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 17:04, 27 March 2018 (UTC)

@@ Line 1: / Line 1: @@
 <!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.-->
-==Land vertically?==
+;Land vertically?
 Hi, searching 'autogyro' has led me to find autogyros can't land vertically.  Could this be a mistake on Randall's part, or am I missing a joke here?
@@ Line 26: / Line 26: @@
 Thanks for the comments, guys. I'm not the original commenter, but I had a [https://i.imgur.com/52JZlwf.png severe misunderstanding] of what "landing vertically" meant. [[Special:Contributions/172.68.26.71|172.68.26.71]] 13:54, 27 March 2018 (UTC)
-==Cannot hover?==
+;Cannot hover?
 I would assume that autogyros ''can'' hover in some conditions (i.e. in a headwind). This is the same argument as the one for "Land Vertically?"; namely that it's the wind that matters. Is Randall wrong here or is this just an impractical edge case? Here is a [https://www.youtube.com/watch?v=DU7uAEvV_PU YouTube video] [[User:Kosak2000|Kosak2000]] ([[User talk:Kosak2000|talk]]) 15:58, 27 March 2018 (UTC)
-==Trivia==
+;Trivia
 First successful flight of an autogyro was in 1923, so they have been around for close to 100 years. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 17:04, 26 March 2018 (UTC)
 The 1981 movie ''Mad Max II'' prominently featured an autogyro as part of the action. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 17:04, 26 March 2018 (UTC)
@@ Line 41: / Line 41: @@
 "Powered parachute"? Sounds to me like [https://en.wikipedia.org/wiki/Paramotor this awesome thing]. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 08:50, 27 March 2018 (UTC)

← Older revision		Revision as of 14:29, 27 March 2018
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	::: I'd expect an autogyro to be capable of landing the same way a helicopter with an engine malfunction lands - autorotate the rotor to store energy and then stop while relying on the rotor to slow the descent. Does not sound like the safest of procedures, but it certainly gives you a vertical landing. [[User:Mat\|Mat]] ([[User talk:Mat\|talk]]) 08:30, 27 March 2018 (UTC)		::: I'd expect an autogyro to be capable of landing the same way a helicopter with an engine malfunction lands - autorotate the rotor to store energy and then stop while relying on the rotor to slow the descent. Does not sound like the safest of procedures, but it certainly gives you a vertical landing. [[User:Mat\|Mat]] ([[User talk:Mat\|talk]]) 08:30, 27 March 2018 (UTC)
		+
		+	::: Doesn't the downward motion of the autogyro during descent contribute to the autorotation of the rotor, thereby providing lift while descending even through air that is calm laterally? [[Special:Contributions/162.158.154.43\|162.158.154.43]] 14:29, 27 March 2018 (UTC)

	Thanks for the comments, guys. I'm not the original commenter, but I had a [https://i.imgur.com/52JZlwf.png severe misunderstanding] of what "landing vertically" meant. [[Special:Contributions/172.68.26.71\|172.68.26.71]] 13:54, 27 March 2018 (UTC)		Thanks for the comments, guys. I'm not the original commenter, but I had a [https://i.imgur.com/52JZlwf.png severe misunderstanding] of what "landing vertically" meant. [[Special:Contributions/172.68.26.71\|172.68.26.71]] 13:54, 27 March 2018 (UTC)

← Older revision		Revision as of 12:56, 27 March 2018
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	::: "Landing vertically"...having so little forward airspeed on touchdown that it is negligible[[Special:Contributions/108.162.216.208\|108.162.216.208]] 23:40, 26 March 2018 (UTC)		::: "Landing vertically"...having so little forward airspeed on touchdown that it is negligible[[Special:Contributions/108.162.216.208\|108.162.216.208]] 23:40, 26 March 2018 (UTC)
		+	:::: I disagree with this. If that were the case, an autogyro could NOT land vertically or anything close to it. I think it's clear that "vertical" refers to movement relative to the ground, as movement relative to airflow is invisible. I'm having a hard time finding hard numbers on minimum airspeed for an autogyro (and unlike fixed wing aircraft, I've never flown one myself, so I don't have practical experience to fall back on). However I've seen a typical autogyro's best rate of climb speed is 50-50 mph, versus almost 70 for a 152; so I'll project about 30 mph for a minimum speed in landing configuration. Landing in that kind of headwind is certainly not unreasonable (though it would probably be not that much fun). [[User:Gbisaga\|Gbisaga]] ([[User talk:Gbisaga\|talk]]) 12:56, 27 March 2018 (UTC)

	::: I'd expect an autogyro to be capable of landing the same way a helicopter with an engine malfunction lands - autorotate the rotor to store energy and then stop while relying on the rotor to slow the descent. Does not sound like the safest of procedures, but it certainly gives you a vertical landing. [[User:Mat\|Mat]] ([[User talk:Mat\|talk]]) 08:30, 27 March 2018 (UTC)		::: I'd expect an autogyro to be capable of landing the same way a helicopter with an engine malfunction lands - autorotate the rotor to store energy and then stop while relying on the rotor to slow the descent. Does not sound like the safest of procedures, but it certainly gives you a vertical landing. [[User:Mat\|Mat]] ([[User talk:Mat\|talk]]) 08:30, 27 March 2018 (UTC)