The model is equipped with a Spektrum 2.4Ghz receiver, Hitec Servos (combination of standard and high voltage digital servos), a Airpower EV-5U Retract/Door/Brake valve/sequencer.
Standard JL Gripen retracts are installed and the gear doors are driven by Airpower 1” stroke cylinders (thanks for the guys at rcuniverse for the details on the gear door installation).
A short video of the Gripen from our Feb 2011 Nusa Jaya Trip
The french Aviation Design Jets Scorpion has a unique shape, with his large canopy, 2 side air intakes, twin fins, undiedral stabs and top fuselage airbrake.
It is designed with special airfoil , giving very good low speed performance and also high speed with full power.
This CT-114 Tutor, powered by a JetCat turbine, is owned by Jonathan. The straight wing gives the model great slow flight characteristics.
Equipped with flaps the model floats in beautifully for landings.
The Canadair CL-41, designated the CT-114 Tutor in Royal Canadian Air Force (RCAF) and later unified Canadian Forces use, is a jet trainer aircraft designed and built by Canadair. Ordered in September 1961, the aircraft went on to serve as the Canadian Forces primary jet trainer until 2000, when it was replaced by the CT-155 Hawk and CT-156 Harvard II. The CL-41G supplied to Malaysia was built as a ground-attack aircraft.
The Tutor is perhaps best recognized as the aircraft used by the Snowbirds airshow team.
Done !! (well except for the pipe which has not arrived yet).
Once the jet pipe has arrived from Gumania the engine can be started and the plane will be ready for maiden.
In summary: a very nice plane to build – quick and easy. (a pre-installed rudder -which was also available from Tamjets- will make the installation even quicker).
To mount the Dubro 600ml (20oz) tank as close to the CG as possible, I have installed a wooden frame over the retract bay. The top surface of the wood is coated with a thin layer of silicone. Once dry the “anti slip” effect of the silicone allows me to install the tank with 2 velco straps. This makes removal easy.
The turbine bay and servos are protected by a layer of TamJets Heat Shield Blanket and fire retardant foam tape. The TamJets Hopper Tank is installed beside the main fuel tank near the steering servo.
The retracts are operated by one of our AirPower EV-2 electronic retract valves. The brakes are driven by a AirPower EV-1 brake valve. As the gear doors stay open once the gear is out, I decided to use a single action EV-1 valve for the doors as well. The door open airline is connected to the retract down airline. This will open the doors as the same time the gear is deployed. The door close airline is then connected to the EV-1 valve which is driven by a separate delay mixed channel on my JR Transmitter. Once the gear is retracted, the door close valve is activated automatically after a 2 second delay (servo speed setting) and closes the doors.
The Turbine pump and ECU, fuel valve and kero start valve are all located in front of the cockpit area to make it easier to set the correct CG later (I calculated with a pipe weight of 80grams).
The last item still missing (it slowly travels to Singapore by German Post) is the Grumania P-20 Pipe for the F-16. Double wall, titanium pipe with only 76grams.. very sexy..
The pipes are custom made and available from Grumania and of course via our webshop
This Jet Teng Bae Hawk in the colors of the 2010 Demo Team was converted from the original EDF propulsion setup to a turbine powered RC Jet by Heng.
The Model is powered by a Wren 44 Turbine Engine and carries 1 liter of kerosene. With this setup flight times of 6 minutes can be easily realized.
The model has a dry weight (hopper tank filled) of 4kg and hence a similar landing weight then the EDF powered version on 8S 4500mAh cells.
Another alternative for a turbine conversion would be the new Jet Cat P-20 turbine with 24N of thrust. Although less power then the Wren 44 shown here, the model would be considerably lighter during landing (assumption would be 3.9kg take-off weight -- 600ml tank -- and 3.3kg landing weight).
Enjoy the video of the Wren 44 powered JTM Hawk in action:
