Lift is a positive power so enhancing lift should bring about longer flight times . Lift relies upon various components including air thickness, speed, the state of the airfoil, and the planar territory of the wing. You can not straightforwardly control air thickness or speed and the thickness of your balsa lightweight plane wing is very thin, so the airfoil is a great deal like a level plate. So the planar territory of the wing is extremely the main outline component that you can control.
The key here is weight, taking a look at the FireFly DLG Glider, its weight is only 80 grams, giving this glider a unique character that stands out from the rest. Truly a unique flying machine.
An absolute beauty, slick black coloring all around, thin stealthy fuselage, long slick 1690mm (66 Inches) wingspan, this iconic 1950’s Lockheed U2 spyplane aka Dragon Lady is now an RC plane, powered with an EDF unit which im not fond of and will convert this to a pusher if i do end up purchase this beauty. The design of this plane is close to that of a glider, actually it is a glider with a power system, of course the downfall is its ducted fan unit which generates low power to thrust ration but never the less, this is one rc plane i would love to own and modify. Here are some pictures and a video of the Spy Plane U-2 EDF by Phase 3 Hobby People. The price tag might be a bit to steep as it comes with its 2.4Ghz radio, i would love to have the option to buy the Dragon Lady kit only. Wishful thinking once again :p
if you want to read more about the history of the Lockheed ( Dragon Lady ) U2 Spyplane, click here
[caption id="" align="alignnone" width="494" caption="Lockheed ( Dragon Lady ) U2 Spyplane"][/caption]
[caption id="" align="alignnone" width="497" caption="Lockheed ( Dragon Lady ) U2 Spyplane"][/caption]