More Fun Flying With the Stryker & Servo Repairs

I’ve gotten a lot more flying time with the F-27C Stryker over the past week and all I can say is this plane is so much fun to fly. And I’m still using an old 8-cell pack too. I can’t wait to get my new 3S lipo pack. Today I finally decided to kick the dual-rates from low to high and see what she could do. Wow, what a difference! I can do multiple rolls one after another without the plane dropping when it’s upside down and it’s quick through each roll. With the rates set to low, I would have to add just a bit of elevator up to keep the nose up while it was inverted. It took timing it just right to do a nice roll. But with the rates set to high (which is still only 70% vs. 50%), it rolls so fast that it doesn’t have time to drop much at all while inverted. It definitely can get more squirrelly in the air but I was doing all sorts of crazy dives and S-loops and I don’t know the names of any real maneuvers, but I’ve been having a lot of fun flying this thing. I wish I had bought it sooner.

After over a dozen near-flawless flights in the last week, I did have one small mishap. I broke one of the gears in one of the servos after a seemingly harmless landing. See, I have yet to fly the Stryker at an actual park, you know, with grass and trees, instead I’ve been flying it out in the wash behind my neighborhood. There’s lots of open space, but not a lot of great places to land, except down in the wash which is mostly sand and rocks. As long as I land it in the sand, it’s fine, but this one time I came in a little short and landed over a few protruding rocks. It appeared to be a fine landing, only when I picked it up and moved the servos, the one elevon just clicked over and over. Upon inspecting the underside, there was small scratch or tear in the decal just under that servo where apparently a rock hit is just right and ended up chipping one tooth in one of the gears. Anxious to get back up and running, I threw in one of the servos out of the ailerons from my Super Cub that I had added the week before. This was only a temporary solution as I couldn’t get the throws of the two different servos to exactly match. I tried flying it one time and it was almost uncontrollable. Any amount of elevator cause the plane to dive and roll and climb and roll at the same time. I almost crashed on more than one occasion.

That’s when I decided to compare the stock 5-wire servo from my Super Cub with the 3-wire servo of the Stryker and see if maybe I could salvage the damaged servo with some parts from the Super Cub servo. As it would happen, the two servos mechanically are identical, and I was able to swap out the bad/chipped gear with one a good one from the other servo. See the pics below. I’ve now discovered the inherent good and bad sides of having more than one plane – the plane you’re not flying automatically becomes a “donor of parts” so to speak. Now my Stryker is flying like a dream again, while the Super Cub sits in the garage torn to pieces, missing half its servos and completely unflyable. Oh well, it’s not like I can fly two planes at the same time anyway. This weekend I got a lot of great flights in and have been having a great time with this new plane. Next week I am going to buy a new 3S lipo pack, probably going to pick up a FlightPower Lite 2100mAh from Tower Hobbies. Or possibly the 25C 2170mAh pack for some extra current-pushing power. I may get some video up soon too, although with all the 165 mph Stryker videos already on YouTube, my whimpy little stock Stryker won’t look like much. But for now I am completely happy with it, it’s plenty fast for me and does just about everything I know how to do while flying. The motor stays super cool and I know with this setup the plane should last me a long time.

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About Dan

For a complete biography, stop by www.danmarx.org and click around for a while.
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