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Post by Britbrat on Jul 20, 2004 10:07:22 GMT -7
My rolling circles are more like rolling squares, or polygons. I think it must be the models -- it couldn't be me could it?
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Post by Grug - American Neanderthal on Jul 20, 2004 11:21:54 GMT -7
Wish I could tell you, mine are more like rolling amoeba shape , I hear that practice does make a difference, but I don't believe it, I thinks its something sold by the guys who make Viagra.
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Post by jetmex on Aug 2, 2004 10:20:24 GMT -7
I think you have to get past the berms and the feeder first.......
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Post by Britbrat on Aug 3, 2004 7:03:22 GMT -7
Berms are a bit@h We have an 8' high berm running parallel to our runway ~ 50' out, & it is a common landing area for the not-so-sharp-of-eye. Doesn't seem to infulence rolling circles unless the pilot is exceptionally brave (dumb). Not a problem to me, since I can't do a rolling circle!
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Post by HB on May 25, 2006 5:44:11 GMT -7
Rolling circle eh?
ok I'm assuming that you know how to fly a model airplane already ;D
So after that, ;D ;D to begin in aerobatics,,, I would suggest learning and practicing the 4-point roll.
To do a 4-point roll without losing altitude, control inputs of the rudder and elevator are required..
Becoming familiar with the correct inputs during a 4-point or slow roll, 2 different maneuvers, is the first step IMO to learning how to do a rolling circle..
Of course a 4-point roll is 4 - 90 degree rolls in the same direction. Rudder or elevator are applied at each 90 degree point so as to angle the plane more upward so that it does not lose altitude during the following 90 degree segment of the roll.
"it just takes practice"
I use a mental "trick" to remember the correct rudder inputs and so even if I'm not practiced I can remember which direction to move the rudder... It doesn't matter whether one is going away or coming toward or upright or inverted or rolling left or right,
an easy way to remember the correct rudder inputs during a roll is,,,
when the airplane is upright the rudder inputs following the first 90 degree segment will be in the opposite direction as the roll inputs.
when the airplane is inverted the rudder inputs following the next 90 degree segment of the roll will be in the same direction as the roll inputs.
Of course once inverted one would bump a little down elevator to angle the plane upward.
Once comfortable with the 4-point roll the next maneuver to practice would be the slow roll.
Then try stretching out the slow roll.
To learn rolling circles, I would recommend using an aerobatic airplane with large elevator and rudder surfaces with adequate throws.
This helps to be able to slow the plane down some while practicing,, yeah, slow the plane down a little.
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Post by HB on May 25, 2006 7:19:29 GMT -7
So to keep it simple on rudder inputs
Upright / opposite
Inverted / same
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Post by HB on May 25, 2006 8:06:49 GMT -7
So once you can do a 4 point roll and then a slow roll,, graduating into and out of rudder and elevator inputs,,, one should be very confident as the plane does not lose altitude even at slow speeds. then to do an INSIDE rolling circle just add up elevator into the first 90 degree and down elevator into the third 90 degree segment.. and increase the rudder inputs past the knife edge attitude. And practice. Some people might even try a couple of brewskys before practice to calm tghe nerveas abit especially if there's a large auduence at the fiweld that cday Anybody care to tackle the outside rolling circle? What do you do? reverse the elevator and rudder inputs? start with heavy rudder and backing off into the knife edge then add elevator etc. wheeew This is something that does take alot of practice and natural ability. Yah, 4 roll rolling circle alternating roll direction after each complete roll. It's amazing, somebody will say, "I can do that" and they won't have the first clue, just as suspected by the average ability guys. And another might say, yah, I think I can do that and everybody thinks SUUUUUURE! and he does it! If you want to delve into this area, good luck
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Post by HB on May 25, 2006 8:12:41 GMT -7
I did see somebody once do sloppy rolling circles that really did look good. I mean entertaining.
I don't think he used rudder at all and he did about 15 rolls in one circle.
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Post by HB on May 25, 2006 9:56:29 GMT -7
I also use a mental trick for rudder direction when in an vertical situation i.e for torque rolling.
The tail of the plane moves the opposite of the direction of the rudder stick when the canopy is facing the flyer and the same as the rudder stick when the landing gear is facing the pilot so,,
Canopy/opposite
Landing gear/ same
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Post by Grug - American Neanderthal on May 26, 2006 20:46:31 GMT -7
I'm not so sure thats a given in my case anymore.
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Post by HB on Jun 5, 2006 15:47:08 GMT -7
For an inside rolling circle you would need up elevator on the first 90 degree segment and down elevator on the third.
Then for an outside rolling circle you would use down elevator on the second 90 degree and up elevator on the fourth 90 degree segment.
I would strongly suggest you buy a small toy airplane and walk around in circles slowly while rolling it over in your hands slowly and closely observe it and imagine how the control surfaces would need to move to achieve this flight. seriously. This makes an excellent training tool.
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Post by Richard on Jul 31, 2006 8:44:35 GMT -7
I think you need a Yack and a DA 50 to do rolling circles lol
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