After seeing some of these indoor coaxial spinning ultra light models, at 50-60 grams AUW, I have got a new challenge on my hands, to build it as light as possible with the standard micro motor as I can't get a hand on one of those in this country. Bugger!
Few of my recent mini Bi-planes I have built were much too heavy for what I had in mind, actually bit of the handle, but a good lesson to keep the weight to minimum for "slow-low and close" outdoor flying fun.
Much better success with few mono wing ones, I have paid more attention to minimize the AUW, but still too heavy at some 8.5 grams w/load for my liking.
The latest I just finished as another experiment and a great lesson curve, I have managed to reduce the wing load to 5.5grams per decimeter square, with an
Few of my recent mini Depron creations , starting with too heavy Bi-planes.
Better success with these mono wing 3mm Depron builds.
Nice but still bit too heavy.
At to 220g AUW it comes to 8.5g/dm2 wing load, still too heavy.
My new project keeping it lighter.
Hoping to keep it under 150 grams.
Touch of colour to add on some weight, LOL.
Modification of few props while static test runs.
6mm Depron cut out wheels.
Just about ready.
AUW at 150 grams which was my target or bellow.
This model gave me a good idea to reduce the weight even further so my next target is 120 or bellow.