Thread: New Product New icon a5 by nfd hobby
View Single Post
Old Jan 19, 2011, 07:25 PM
Thomas B is offline
Find More Posts by Thomas B
Electric Coolhunter
Thomas B's Avatar
United States, TX, Fort Worth
Joined Jun 2000
14,906 Posts
Quote:
Originally Posted by Lancer31 View Post
Another possibility, for maintaining stable condition, during takeoff & landing, would be a wing-leveler. Such a system could consist of a single rate-gyro, which can be switched on or off, to control the aileron servos, during takeoff & landing phases. The "magic" trick of a wing-leveler is that its gyro-axis is canted exactly 55 degrees up, with respect to the horizontal centerline of the fuselage. What that does is to respond to any gust-caused upset of the model, whether in the yaw or roll mode, and give aileron to correct it.

While it may well be necessary to add spray-rails to the bow edges, to help control how the water reacts with the hull, and maybe greater span/volume to the sponsons, a wing-leveler system has the advantage of being able to respond instantly to the problem! (Even faster than Shigetyann, and his good-flying racer friends, especially when it is 0 degrees C, at the pond)!
When I have this issue with a flying boat, it happens when the model is not moving enough for the ailerons to lift the wing, at all.

Thus, it would not matter if you had a wing leveller, or not, as the wing leveller will only function once you are moving fast enough to get enough aileron effect to lift the wing that is dragging the water.

And when the wing tip (or even a sunken tip float on a model other than the Icon being discussed here) is dragging deeply in the water, the model will go around and around and never left the wing, no matter if you OR the wing leveller is trying to raise the wing.....

Some models respond well to a blast of power and a large rudder input and you can lift the wing that way. And some don't.
Thomas B is offline Find More Posts by Thomas B
RCG Plus Member
Latest blog entry: 2014 events and travel
Reply With Quote