I am finally through with this bird.
Today I managed to start the Voyager into slight crosswind (without any rudders, as it doesn't have it). After half a circle coming back parallel to the runway suddenly the nose came up in a violent manoeuvre nearly 90 degrees without any input from me. One or two seconds later the motor stopped without any command to do so. No more response from the airplane.
Like a leaf it fell down
I think, there was an interference, which caused elevator full up. This violent manoeuvre might have turned loose the plywood where the battery is fastened. And this disconnected one battery wire.
I found the battery in the plane, but one wire disconnected. The battery was still fastened to the plywood!! The plywood looked like it had no glue on it, where it was connected to the fuselage. There were only 6 small points, where it should have beed glued to the frame.
The whole electronic including the motor worked fine when I reconnected the battery!!
This fits to the other things, I don't like on this plane. The whole structure has several weak points.
- The landing gear is connected to the fuselage through 1 mm Balsa only. No connection to the main frame parts with plywood. That had already ripped off my landing gear, when the plane left the runway on an earlier flight. I repaired that with some glas and epoxy.
- The nose gear is fixed. I rebuildt it as steerable nosegear.
- The Center of Gravity was wrong from the manufacturer (see this thread and others), so it couldn't fly with that CoG.
- The fuselage is too weak with that big opening for the wings.
- There was NO fastener for the wings to hold them at the fuselage. I buildt some hooks into the wings and used the good old rubber band. Additionally I buildt 2 strong magnets into the wings and small metalplates into the fuselage. That worked for me.
- There was NO cooling for the motor. The poor thing was stuck deep in the fuselage with no opening for air to cool. I buildt in several openings with aluminumtube for forced motorcooling by airstream. That worked well.
- It has no rudders. Start with crosswind is a problem.
- The 480 motor, which comes with the plane, is totally underpowered. I used a Speed 500 BB Race, which worked fine without excess Amps. A brushless would do a good job too.
It looks like thedesigner looked too much on weight saving and less on practical design.
I cannot recommend this plane, unless you do a lot of additional work to make it usable. And with all the time for this work you better buildt your own plane, without all the deficits.
I do not rebuildt this plane. The fuselage (the rest of it) is already scrapped. The wings are still ok. So maybe, if I have a lot of time, I will buildt my own fuselage somewhere in the future.
Uli