Aircraft Details

    This is the Pacific AeroModel ¼ Scale Clipped Wing Monocoupe ARF.  It is powered by a Zenoah G26 gasoline engine that was originally magneto based.  The engine was converted to an ignition based engine by incorporating a CH Ignitions system.  The motor swings an APC 17 x 6 prop with a top rpm of about 8200.  The radio system consists of a JR 9 channel PCM receiver that drives 6 servos (2 elevator, 2 aileron, 1 rudder and 1 throttle).  In addition the power going to the ignition system is controlled by an RCATS electronic switch via the receiver, which can cut power to the engine via the transmitter.  The model carries 2 battery packs, an 1800ma 4 cell NiCad for the servos and radio and a 1400ma 4 cell NiCad to run the ignition system.  All servos are HiTec HS475 with a HiTec HS625MG servo controlling the rudder.  The supplied fuel tank was replaced with a DuBro 16 ounce tank with a gas compatible stopper.  The tank is equipped with a felt filter and all tubing is Hayes medium size neoprene tubing that features no seams.  In addition, a PSP gas compatible fuel dot is used to fill the fuel tank.  The model has been customized by outlining doors and windows with stripping tape, the addition of a custom made instrument panel that simulates one found in a full scale aircraft as documented by Bob’s Scale Documentation and an MG ¼ scale pilot figure.  The model comes with a nice set of fiberglass parts which include the cowl, wheel pants, strut fairings and a dummy engine.  The wing span is 69.5” and has 950 sq. inches of wing area.  Overall fuselage length is 63.5” and weights 11 pounds.  

    The model flies and tracks extremely well.  It does have the characteristic at slower speeds of “dragging its tail” around a turn but with coordinated rudder input this is not a problem.  The transmitter, a JR XP9303, has been programmed to mix in rudder input with ailerons via a switch so the mix can be disengaged if one wishes.  The model does like speed and can perform most of the standard aerobatic maneuvers with style.  Surprisingly, despite the “small” wing span, the model is quite stable during landing and can land at fairly slow speeds.  The only quirk the model has is during takeoff.  The engine speed needs to be brought up smoothly but quickly so the tail feathers become active sooner rather than later.  If not done the model can take an unexpected 90° turn to the right on the takeoff roll.  So long as the pilot is aware of this “issue” it becomes easy to avoid.  This is by far one of my favorite models.