Greetings - I purchased an ESM Swordfish that was partially built recently. This is only my second ARF build, so I am not very good at modifying the manual instructions.
The manual does not explain how to connect the upper wings to the mid-wing portion. It does show how to connect the two bottom wings to the center-wing - by drilling two holes through the wings and through the wing tube. The lower wings are then connected to the wing tube by two bolts and washers.
But I cannot find how to connect the upper wings to the mid-wing piece. The upper wing is connected by two fibre wing joiner. However, when I start the engine, an MT 35, the vibration causes the two upper wings to spread apart from the mid-wing portion since there is nothing holding them together.
Any advice would be greatly appreciated.