The Hangar Queen: UMX Cessna
What is a Hangar Queen? You'll see below. But, in essence, it's a plane that just doesn't get out of the hangar... much. In the Air Force, this happens when, for instance, two planes are in the hangar for two different reasons. Say, one has a computer issue, the other an engine issue. So, they pull the good engine from the plane with the bad computer and put it in the other - now you only have one plane that can't fly. But wait! By the end of the week, another plane needs a radar transmitter. And the next, one needs a front landing gear assembly and...
We bought this new as a replacement for the Sport Cub S2 that was lost over the swamp. We wanted something with more power, a little heavier, and tricycle landing gear as I'd read it was easier to taxi, take of and land. Turned out that is true, but not on UMX planes as the wires connecting are... Too flexible.
The next problem we encountered was the rudder servo burned up. Lucky it didn't damage the plane. Nineteen dollars later and some glue it was good to go, sort of. The next month or so it was flown on five or six days, with 1-3 flight per day. When we went out one day in April, it would not bind to a DXe transmitter. After we brought it back home, we tried several other transmitters and fully charged batteries. Same result.
Being she was in need of one part, and FrankenPlane needed a Motor mount...
Later I ordered a replacement receiver, but the one I got in has a stabilization issue. And now the elevator servo is going glitchy - removed that before it burned up.
Since my son bought this and we'd found that Horizon Hobby was good at honoring their warranty, I helped him write to Product Support. That was almost a week ago and they have not yet responded. This was not the case when I contacted them about the burned up flap servo for our UMX Timber.
By June, all of the UMX planes were in need of something: Timber, FrankenPlane, Cessna. But I finally got the Timber working, but that one only one plane. Sooooooo... Rather than have two planes down I decided to move the UMX Timber Receiver and motor out of FrankenPlane into the Cessna.
After some work, I had everything set up and working, including the flaps. But I noticed all the servos were not moving much. But, they were moving and moving correctly, and AS3X/SAFE was operating properly as well.
Testing in the front yard showed she was slow to turn. Mostly to the right - this caused an issue and she rebroke the prop mount. I put another one on (from FP) and went up again, with the turn rate in mind. This time I was able to fly just above house level without any issues. And eventually turned off Assist. After several minutes of flying, I brought her down for a good landing (though, one aileron servo came loose).
Next was flying at Richard Barry Memorial Park (soccer field). Wind was light, some gusting. It was clear, hot, and no one else there. I hand launched the Cessna (as the front wheel was taped in place and this is a grass field). Having more room was good - but she still turned slowly. I flew for a good 3-5 minutes before bringing her in for a soft tumble landing. No issues other than the original servos just don't work well with the Timber controller.
My next step is to get a pair of UMX Timber servos. Once those are in, I expect to see some good sharp turning in this plane.
Cessna and Timbers
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