Sportcopter Mustering Model low flying

[Tsemler]

Hey Brian, I"ve been thinking about this in general as I used to enjoy aerobatics in the glider. Lets say someone has and can loop their gyro, hell lets say they can even roll it, and that person is in Oz, They aren"t stupid and are very safety minded especially regarding their machine. What would he have to do to legally be able to do it? Since its illegal as in the regs it states no aerobatics and nothing more than 60 degrees of bank, I guess some rules just have to get bent from time to time and done secretly. (Just unfortunate that its gotta be that way)

[birdy]

Since its illegal as in the regs it states no aerobatics and nothing more than 60 degrees of bankWTF??????????????

[Tsemler]

Hmmm i just looked at the regs again and see it only says no aerobatics i dunno where i got 60 degrees from. I dunno what Definition of aerobatics is tho.

[Greg Mitchell]

Nice Pic Brett.Perhaps the thrustline angled up and over the C of G on the Vortex and Lightening cause this effect. Exacerbated by the pod on the Vortex.Again why would the thrustline of the higher powered Vortex"s now be angled in line wuith the keel?

[Greg Mitchell]

http://www.youtube.com/watch?v=ehjHJHdGxZw

[Greg Mitchell]

OK well Brett had posted some comments and then removed them.He stated the Vortex of his flew nose down at all speeds.Look at the high speed fly by in this video.......@ 3.33 minutes and look at the nose down attitude even after the thrustline was adjusted by sportcopter for the new 912 models.Mitch

[asra]

SamL,CB posted this on the yank forum with respect to the G2 HoneyBee I think.Could you explain it in simple terms with respect to the SC nose down attitude under power.CLT Monarch does not behave with nose down at full tap, nor your old Dragonfly I should expect.Anyway here are some quotes and a schematic.Hi GregThere are a few things we need inorder to accertain why it is flying at such a low nose angle.1) is the hang Test "ANGLE IN DEGREES"Most blades will FLY WITH A ROTOR DISC ANGLE OF 9-10 DEGREES. If the machine was hang at say 12 degrees then its natural keel angle in flight would be about 3 degrees nose down. THIS IS WHY WE SET THE HEADS CENTRAL POSITION AT 9 DEGREES. This could be one explaination.2) is to calculate the machines CofG in relation to its propeller Thrust Line. We would require the hang & tilt back results to guage that. This would show us its Thrust Line/CofG offset (HTL, LTL, CLT ect)

[aussie_paul]

Hi GregThere are a few things we need inorder to accertain why it is flying at such a low nose angle.1) is the hang Test "ANGLE IN DEGREES"Most blades will FLY WITH A ROTOR DISC ANGLE OF 9-10 DEGREES. If the machine was hang at say 12 degrees then its natural keel angle in flight would be about 3 degrees nose down. THIS IS WHY WE SET THE HEADS CENTRAL POSITION AT 9 DEGREES. This could be one explaination.2) is to calculate the machines CofG in relation to its propeller Thrust Line. We would require the hang & tilt back results to guage that. This would show us its Thrust Line/CofG offset (HTL, LTL, CLT ect)

[IanM]

Hi Sam,Ah, great points.

[asra]

Hi Sam,One thing that is probably misleading about the height of the CoG is that there is quite a lot of extra weight at the top of the mast.

[asra]

Yeah, re your opinion Sam, but you are right.Aussie Paul. Good ONYA Paul

[Brian]

Hey Brian, I"ve been thinking about this in general as I used to enjoy aerobatics in the glider. Lets say someone has and can loop their gyro, hell lets say they can even roll it, and that person is in Oz, They aren"t stupid and are very safety minded especially regarding their machine. What would he have to do to legally be able to do it? Since its illegal as in the regs it states no aerobatics and nothing more than 60 degrees of bank, I guess some rules just have to get bent from time to time and done secretly. (Just unfortunate that its gotta be that way)

[Greg Mitchell]

Sorry Brett,Found your post on the other page.Mitch.

[Greg Mitchell]

Thanks Sam for itemising the key points above.I too like the SportCopter very much, have been trying for several years to understand why Jim does things a little differently.Not sure why you would want to be flying nose down all the time.Interesting to see the bigger tail feathers and how the testing ends up.Mitch.

[kingo]

thanks Mitch, thought I was going nuts had the post I was just sending go missing not the last one,Sam back to this Keel angle that you keep refering to, can we please call it something that will suit it now days, as keels come in all angles and dangles these days. Are you talkin about an angle from tip plane path? Or a