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rolling harrier - 3/15/2006 11:00 PM   
whaturi



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Status: offline 		in the rolling harrier, are you constantly adjusting throttle, or is it just left in one spot for the most part? in the sweet spot?

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RE: rolling harrier - 3/15/2006 11:20 PM   
AeroDave



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Status: offline 		I love this topic!
For me, I adjust it when it needs adjusting, but I don't blip it all the time like some folks say they do. I have found it can remain fairly constant.


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RE: rolling harrier - 3/16/2006 12:08 AM   
bodywerks



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Status: offline 		Correct. Blipping it at the wrong time does you no good. To do it absolutely perfectly, the throttle needs to be increased as it approaches the KE positions. Go to http://www.****/content/groundschool.aspx (you have to be registered) and watch the "rolling with Leseberg" trailer and watch his left thumb carefully. You will see the throttle increase as rudder is applied. It is very slight in this case, because the harriers aren't very high alpha, AND because both of those planes are electric. Yes, that Dalton 42% 260 is electric! Gassers typically require a little more input.
However, harrier rolls don't require this, they are just smoother with proper throttle input.. To learn them, first worry about correct rudder and elevator inputs.

< Message edited by bodywerks -- 3/16/2006 12:15 AM >

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RE: rolling harrier - 3/16/2006 1:45 AM   
whaturi



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Status: offline 		thanks, now i need to buy a sim or crash my plane.

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RE: rolling harrier - 3/16/2006 2:10 AM   
Cappy69



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Status: offline 		Took me a long time to get it right....lots of inputs....all of which the timing and throttle management has to be perfect. Usually I blip the throttle as it's going through the final knife edge portion going into the upright harrier, for me this is easiest in keeping my altitude and the nose pointed up. Like I said....takes a LOT of practice, one slight timing mistake and it throws the whole thing out of whack.


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RE: rolling harrier - 3/16/2006 2:28 AM   
whaturi



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Status: offline 		i guess master the slow rolls first, huh?

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RE: rolling harrier - 3/16/2006 2:30 AM   
seanychen



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Status: offline 		To me, it depends on the airplane. The purpose of blipping the throttle is 3-fold: retaining airspeed, maintaining roll rate, and increase lift. If someone blips throttle during every KE position, that means some of these 3 elements needs thrust to maintain. On a really light profile or foamie, this is not necessary. Whereas on a heavy 25% aerobat, the behavior goes south during KE position unless you give it some additional thrust.

Also, larger airplanes do rolling harriers at a slower roll rate, while smaller airplanes need faster roll rates to maintain rolling harrier. Blipping throttle is much more manageable when you are rolling away a 30%er at 2 second per roll. On a 40 size profile, rolling harrier at 1 second per roll, blipping throttle at KE position, while compensating for throttling delay, is much more difficult.

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RE: rolling harrier - 3/16/2006 2:31 AM   
bodywerks



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Status: offline 		Definitely.

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RE: rolling harrier - 3/16/2006 3:44 AM   
Cappy69



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Status: offline 		Good how and why explanation.


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