Sand Shark AH-1F Cobra V2
Sync Elevator
While I've made the Sync Elevator movable to replicate the real heli, I had no intention to actuate it during flight; I didn't want to risk messing with the FBL controller not knowing what it will do if flight attitude is externally affected. It is currently used for cosmetic display only.
This is how it should function in a real Cobra according to a retired Cobra pilot friend: "It is used during flight. Simply mechanically based on cyclic longitudinal position, if my memory serves me right. More forward stick = faster speed= more forward tilt of rotor disk = more nose pitch down. This is all generally bad for a few reasons. Worst is it causes more drag due to the entire fuselage being tilted down. This is Counteracted by stab tilting trailing edge up to help pitch the nose up and keep a more level fuselage attitude. This helps to reduce drag overall by making the entire fuselage more level and in-line with the airstream. All of this works in reverse during a deceleration as well."

13 Comments
Hi Patrick, we will up the size limit on videos. As for posting, we have an “Other Scale” category under which you can choose Len Mount (but not the specific model).
Hey Patrick, we bumped the upload limit and it appears that you've taken full advantage! This video looks great! Of course, the subject matter helps. ; )
I understand native video streaming adds to the server expense. But I think it's a crucial feature to reduce usability friction. Hope you negotiated a good deal with a CDN such as Akamai:) Alternatively, you could allow embedding FB video, where most scale videos are already hosted.
Often overlooked but always appreciated!!
That looks excellent Patrick
You do great work Patrick !!
very Realistic wow
Very nice machine !
Motion including arms is awesome, I find it realistic. Must be very visible in flight. Well done!
It was a static display project, I've never flown it with the outboard passenger. His seat- the ammo bay door is supported by 2 tension cables, therefore not a rigid platform. I'm afraid he'll be bouncing up and down during flight, too risky.
How heavy is this bird now?
29.5 lb flight weight.
Nice build, specially the CG optimized Lipo position. Impressive features at the front gun.