X8 skywalker handlaunching and landing... (4 min 36 sec)

btw, HK has metal gear 180° servo, pretty cheap
http://www.flyfreak.net/elektronika-...cseen#msg95023

I use the Hitec HS-5245MG for the GoPro pan servo on my Skywalker. It can
be programmed to 180 degrees, but you need access to a Hitec digital servo
programmer (my LHS has one I use).

ian

Ecilop Chasing X8

Ecilop Chasing X8 part 2 (2 min 9 sec)

You just need to add your peregrine falcon to the chase... Looks like an Etihad Airlines Commercial. Nice

Originally Posted by TheCure

Pictures as requested.
Took a good few hours per side to sand that taper down

Nice. Well done

http://www.facebook.com/groups/projectbigbird

Video soon....

Did 2 Maiden flights today with BigBird. Both ended in flat spins that I could not get out of....

No damage and ALL caught on video from onboard and the ground.

Bungee launch worked really well too..

Hmmmm - ideas...?

Cheers

http://www.facebook.com/groups/projectbigbird

Sounds like you have your CG too far back and too much throws on your control surfaces.

Or just CG too far back

Getting ready to maiden. What is recommended control throws in mm, and how much reflex please?

No reflex, 10mm ailerons + 10mm elevator on top works for me

Thanks Coyote. So 10mm travel each way, same travel for elev and ail, and no additional reflex. Just follow the contour of the wing?

Double post

Video of BigBirds Maiden Flight. Done a great job again with the video Phil, thanks. Includes bungee launch and the death spin "landings"...! http://m.youtube.com/#/watch?v=dyNuH...%3DdyNuHo-FNBE

Originally Posted by Coyote64

Sounds like you have your CG too far back and too much throws on your control surfaces.

Or just CG too far back

Thanks - ok will adjust throws (is 10-15mm a good starting point). CG to far back - you mean nose heavy?

Cheers

with the hitec servos on the ailerons i hear some jitterings (even with double ferrites)... why??
they are the hs225 mg

Originally Posted by philthyy

Hitec servos are well proven. I trust them. As far as ESC, I would go with the Castle Creations ICE 75. Or a Kontronics ESC.

Originally Posted by VizBizTas

Thanks - ok will adjust throws (is 10-15mm a good starting point). CG to far back - you mean nose heavy?

Cheers

No, the nose is too light. It should balance right at the rear of the finger holes on the bottom of the plane.