Toledo Special 40
By Rick Hanners

    This is the Hanger 9 Toledo Special 40.  It is powered by an Evolution 10cc GX gas engine that is equivalent in size and power to a .60 glow engine.  It swings an Evolution 12 x 6 prop and has a 6721 Macís Muffler spaced from the engine with a 13mm Evolution spacer.  The Macís muffler was used in place of the standard muffler as physically the muffler included with the engine, was not capable of fitting the aircraft frame even with the 13mm spacer.  The 6721 is special in that it is angled 15į from 90 rather than the standard 7į, all to help the muffler clear the firewall.  Most of the supplied hardware was used but all clevises were replaced with Hayes Steel Pin ones.

    The supplied 11 ounce fuel tank was replaced with a Sullivan RST 8 ounce tank.  This seems a bit counter intuitive but the GX gas engine is a fuel miser and an 8 ounce tank can fly the plane for over 20 minutes even at full throttle.  Fueling is accomplished through a PSP fuel dot so no tubing has to be removed for refueling.  The fuel tank has a felt filter that not only prevents bubbles in the fuel line but allows almost every drop of fuel to be used.  A final filter to the carb is done with the in-line filter supplied with the engine.

    The radio system consists of an XPS 6 channel top pin 2.4GHz Nano receiver that is matched to an XPS JR style module that is plugged into a JR 12X MV transmitter.  The receiver drives 5 HiTec HS-485HD servos (1 rudder, 1 elevator, 1 throttle and 2 ailerons) and a Tech Aero IBEC.  Power to the system is supplied via a 2 cell 1100ma A123 LiFe battery pack.  The IBEC supplies power to the engines ignition module and is selected, via jumper on the IBEC, to output 5 volts to the ignition.  This eliminates the need for a separate ignition battery and associated circuitry.  The output of the IBEC is also controlled via a receiver channel so it can be switched on or off via the transmitter.  A very bright red LED mounted to the side of the fuselage indicates when the ignition module is powered or not.

    The plane was customized with the inclusion of a Slimline Pilot figure (Joe) and a 2.25" Tru-Turn Blue anodized spinner.  Wing span is 69.5" with a wing area of 702.8 sq. in..  Overall length is 51" with an all up weight of approximately 5.75 pounds.  The plane is fairly fast and has and extremely good glide ratio.  Takeoffís and landings are extremely straight forward with no bad habits exhibited.  Stalls are straight with no evidence of tip stalling at low speeds.  The plane is quite nimble and aerobatic.  Despite having a gas engine, it sounds like a glow engine.  The engine itself is remarkably easy to start but because it is an ABC type of design it requires a fairly long break in period, requiring about a gallon of fuel having been run through it before achieving final break in status.  However, during the break in period the high and low ends do not require much in the way of needle tweaking if at all.  To date, the only thing Iíve had to move is the high speed needle valve a few clicks.

Rick Hanners