Landing gear can tear out the surrounding fuselage if not spring loaded in one way or another. For some reason I forget this when building. I build to the plan and that is the case with the Sportser so on the first flight the LG tore out and took some of the former with it.
So with this rebuild I spring loaded the LG like I usually do. This works very well and saves the fuse. (I thought ahead and spring loaded the LG on the Erla 6A before the first flight. Does this means I'm learning? No. )
I put the gear between two pieces of 1/8" ply and screwed a 1/16" ply plate on top. I use a rubber band of the proper size and then the gear springs back on a less than graceful landing. I use sewing hooks instead of making my own.
Trexler rubber tires are another way of spring loading a landing and I use those too sometimes.
Ok, the stab has been installed and the control rods hooked up as well. For this size model I find Hitec 55 servos and mini control rods work just fine.
Remember, this is a free flight model. I don't intend to steer it around the sky much unless I need a diversion. Basically I'll fly it to altitude, turn off the motor and let that puppy fly free, the way it was designed to fly.
I put a couple of solid pieces in the stab for the nylon machine screws. The base in the fuse is 1/16" ply which I threaded and reinforced with CA, it works great.
The servos are on a tray that spans the fuse. I glue them with Silicon glue so I can get them off if I need to. Because the stringers are on the outside of the formers I could blue the control rod sheath directly to the former. This makes I happy.
The home made control horns are 1" for better control. It has been my experience that with this dihedral elevon setup you need a lot of aileron movement to get it to turn.
Well, I finished my 5th Von Hereford 1/2A Texaco last night. I always take before the crash pictures to show what I finished before I crash it. In other words, I haven't flown it yet. There is no wind this morning, but it is 21ºF and I'm a bit of a wimp when it comes to flying in freezing weather.
The build was fairly easy. I changed a couple of things, like making spring loaded landing gear and rubber banded wing mount, but other wise it is pretty much as he designed it.
The power is a Speed 400 7 volt Graupner with esc. I bought 5 from Hobby Lobby last month at $10 each. I should have bouth 10. It is probably too much power, but I'll use a 2S 7.4V LiPo battery with a 8-4 prop and see how that goes.