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The Original All Roller Talk Discussion Board Archive >
2beat per revolution
2beat per revolution
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fresnobirdman
556 posts
Apr 14, 2009
9:02 PM
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"True "H",
I was explained the a true "H" is where there is two wing beats per revolution, and its mostly mistaking with a half "H","
-tony
im sorry guys but what does he mean by two wing beats per revolution?
i hope he wont mind me useing his words.
-fou
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Ballrollers
GOLD MEMBER
1856 posts
Apr 15, 2009
7:05 AM
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fou,
During the normal roll sequence, a roller flutters (strokes) its wings from horizontal to straight down(vertically) or to meet at the wing tips (or close to it) and back to horizontal. This is half of the H or (). When the bird revolves to up-side-down, the other half of the H or () is produced. The wings do not extend upward beyond horizontal over their backs. A roller with good speed revolves at 10 revolutions per second. That's 10 strokes per second.....which is why I said "flutter", because in reality, it is more like a muscle spasm or nervous twitch. I have heard of guys that insist that two strokes per revolution is possible, and that they have seen it on video. I question the ability of video equipment to be able to capture that kind of speed and I also question the physical limits of the muscle and bone of a pigeon to twitch or flutter at two times per revolution, which would be 20 times per second. Remember that we have documented 12 revolutions per second in rollers as the upper limit of photographic equipment to capture and verify that kind of speed and probably as the upper limit of the ability of the pigeon to produce that kind of motion. That would require 24 strokes per second! I'm not saying that it is impossible, I just question it, and would like to see more proof of the phenomenon, first, before I commit to believing it. Hope this helps.
Cliff
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quickspin
1015 posts
Apr 15, 2009
11:43 AM
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A full stroke is when the birds wing touch 12 O clock and 6 O clock which is (). Touch on top and bottom. wing tips tear apart on the birds primaries.
The rest of the style just picture them on the clock
X H X () look were it ends top and bottom and put it on the clock.
It's real easy ones you figure it out also some of the higher quality birds seem as they don't drop as fast because of the speed they are going. Some very hard to produce stay still for 1-2 seconds before they drop. The faster the bird drops the bigger the loop is going bigger ball. I like them not to drop fast but with speed.
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