Here are photos of my AMR Twin Stick 50. It now has 25 flights on it and continues to draw a crowd every time I fly it. It has 2 DLE-30s and all servos are standard (non-Digital) Hitec HS 645s. Fuel tanks are 12 ounce Dubro in front of the spar/wing tube. All other hardware is standard from your kit. Tires are 4 inch mains and standard OMP tailwheel from the kit. See the 2 flying videos The first video is the 3rd flight (the second flight after building the revised engine nacelles and nose cone as below).
I found the initial flight required 2 kg ! of nose weight (2 liter bike camel bag in nose) to get the balance point correct for its maiden flight made during the 2012 NW Scale Championship held in Wenatchee, Washington with a crowd of several hundred people in attendance. This was with 2 DLE 30s and 16 ounce tanks behind the spar/wing tube. Phone call to AMR and some calculations later, they were able to cut me new engine Nacelles which is depicted in photo #80. Because the engines now sit 4.25 inched forward, I built up a foam “nose cone.” I have a total of 6 ounces of weight inside the nose cone at 8 cm forward from the front of the nose firewall. Balance is now excellent and weight just under 22.5 lbs.
I reinforced the landing gear with a ¼ inch plywood plate after flight #22 (a rough landing caused a crack that a single piece landing gear would have survived). On that same landing, the OMP tailwheel metal bracket bent a bit to the right. This caused loss of ability to turn left. I have subsequently purchased an Aeroworks carbonfiber tailwheel assembly ($39.95 on their website) and will be installing it prior to the 2013 flying season. The second video is flight #22, where the above damage occurred. You could easily see the bounce but couldn’t really see any damage to the airplane in that video.I have 3 more flights on the plane after the above repair and am really getting comfortable with it. It is the perfect gasoline twin engine trainer platform which will get me experience.Normal0unctuationkerning>unctuationkerning>falsefalsefalseEN-USX-NONEverridetablestylehps>verridetablestylehps>
I have built and flown the AMR Giant Stick 50 2-3 years ago as well (same color as the Twin Stick since the Orange was so visible and I wanted something different). It has a DLT 55 with same servo setup. I look forward to purchasing and building another great AMR kit (leaning toward the Low Wing Stick 50).
Michael (mikejtwinman) Johnson