It’s been quiet around the F-16 for far to long !!
In the meantime the pipe has arrived from Grumania in Germany. A piece of art. Super light weight and double wall !!
Installation of the pipe was done in a few minutes. As Ilja had send me the weight of the pipe I was able to set the CG before the pipe arrived (how many sheets of paper do you have to roll up to get 80 grams??)
As soon as the pipe was inside the plane I did the first test run of the engine. During the first run I noticed that the engine did not throttle up smoothly -- if JetCat says that the fuel line from pump to turbine needs to be at least 110cm (not mm) = 1.1 meter, then better follow the instructions.
Fuel line extended and “TATAAAAAA…” the throttling up is smooth.
Enjoy the video of the JetCat P20-SE with KeroStart spooling up…
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
Welcome to Part 4 of the building log. I’m close to finishing the F-16 now. I manufactured 2 rails from plywood and glued it to the main fuselage former and fuselage sides.
The rails are a bit to low for the proper thrust line so 6mm plywood doublers are added at the mounting location.
A plywood triangle at the rear further supports the rail on the fuselage walls.
The JetCat P-20 fixed in place (with DIY mini FOD) ..
I finished the installation of the retracts and routed the airlines. The intake duct is installed – I will have to cut it down later to install the fuel tank.
The EDF Version I’m converting does not have a rudder, so I decided to modify the plane and cut/install a working rudder for those cross wind moments.
The pictures below show how I cut out the rudder, added balsa to close the rudder and fin.
At the end I added a layer of light glass to the rounded edge so it an be painted. Looks quite good after the paint job.
The Rudder Servo is a Hitec HS-85MG which is installed in the small box below the rudder. A pin from the rudder will go into the small groove in the servo arm to drive the rudder.
after playing around with various airframe options for the new JetCat P-20 I have decided to start building on a TamJets F-16 in 1/12 scale (below videos helped me a lot to make up my mind ) and plant the little turbine into this model.
- Cut gear doors - Install Retracts, doors and cylinders
I first tried to cut the doors with a saw but had some issues with chipped paint so I switched to a hot knife which worked much better. Although my version of the F-16 was already from the new batch (with some additional re-enforcements to the retract mount), I decided to add one more layer of carbon to the front of the spar (to much I guess but it looks good….kind of…… ).
I also added the additional block to the wing mounting area (although it would not be required).
Gear door hinges installed and air cylinders fitted (the nose door cylinder comes from a TamJets Gear door install kit, the main cylinders are Airpower 12mm stroke cylinders).
RC-Warbirds will be closed for summer holidays from 25th June till 19th July. Orders placed after 23rd June can therefore only be shipped once we return on 19th July. We are sorry for the inconvenience caused. We wish you and your family a great summer vacation (with good weather for some RC flying). And our customers in the southern hemisphere a great winter with some time to prepare the models for the next season .
Your RC-Warbirds Team
Typhoon 700 Motors
The new line of High End RC Typhoon 700 Motors are designed for high power EDF jet applications. With a can length of 60mm and 68mm these motors are designed for output powers of more the 3000kW for lipos ranging from 5S all the way to 12S.
Starting with the 10-12S Typhoon 700-68 we now have the first motors in stock.
New motor types are arriving nearly on daily basis. Make sure to check out our webpage frequently
Lipo and current draw recommendations are listed for each motor type on our webpage.
Q-Disconnect
2 pairs of Quick Connectors for retract air lines and retract tubing. Allows for easy separation between wing and fuselage airlines for retracts or brake systems. Also available as self closing valves (to keep air from leaking out when disconnected).
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HD T-Connector
Set of 10 High Density Plastic T-Joiners for Airlines. Suitable for 1/8” and 3mm retract and brake airline. Also available as X connector with 4 ends. .
EZ Wing Servo Mount
Wing servo mount special make for JR 168 or Hitec 5125. Mounting servos has never been easier before. Just glue the base to your servo hatch or wing skin and screw the servo in place. .
EZ Servo Mount – Medium
Mounting servos has never been this easy than before. Why bother spending hours to install your servo. Go the easy way. The Medium size servo mount comes with a #2 screw hardware package. This Medium Servo Mount is best suited for servos such as the JR 9411, 9011 and any other servo with a housing length of around 35mm (1.37 ”) Also available as Standard Mount. Will fit most Standard Servos such as the JR 537, 2721, 8411. Hitec 335, 635, 5645, 5945, 5975 and standard Futaba servo. .
Tamjets – Servo Screws
Tamjets #2 Servo Screws with hex head. Length: 7/16" (11mm) Quantity: 100 pieces Easy installation of servos at difficult locations with the hex head and the help of a ball head allen key. Also available with 9/16" (14mm) length.
Pre Release Notification: Jet Teng is about to release their new L-39 full composite EDF Jet for 90mm Fans. The L-39 comes retract ready and equipped with flaps. Like the Hawk the L-39 is available in various color schemes, fully painted with water transfer decals applied and protected by a clear coat. The L-39 will be priced between 599 USD (Color scheme 1 – 3) and 650 USD (color scheme 4-5) depending on the color scheme. We expect initial availability in the first weeks of June with limited quantities available. Please drop us an email at sales@rc-warbirds.com to pre-order your L-39 today.
Pre Release Notification: Jet Teng has just informed us that new color schemes are available for the JTM Hawk full composite EDF jet for 90mm Fans. The new color schemes come with the same features as the standard Hawks. In addition we are offering the same optional packages (fans, motors, retracts) also for these Hawks. We expect initial availability in the first weeks of June with limited quantities available. Please drop us an email at sales@rc-warbirds.com to pre-order your Hawk today.
Tamjets is well known for its track record of producing high end durable turbine jet kits and ARFs. With almost a decade of experience producing composite jet aircraft, Tamjets is now expanding its product line to the electric jet market (EDF). Leveraging this experience, Tamjets are now able to produce scale aircraft that are high perfomance, light weight and strong all at an affordable price. Over one year in engineering strength and efficiency has been invested in making this model to provide maximum performance capable of top speeds eclipsing 150MPH. The Tamjets EDF F-16 ARF’s are fully composite with complete ducting, hardware and ready to accept Tamjets or MAP retracts and gear door cylinders
The Viper Jet in Bronze/Black Color with a composite molded fuselage and balsa wings is the latest high end edf jet from SAPAC. The plane comes pre-completely assembled and pre-painted. The model is designed for popular 70mm EDF Units such as the WeMoTec Mini Fan 480 or HET-6904. Please see the drop down menu below for available power options.
Retract mounts are pre-installed for quick installation. A fixed landing gear is included as well.
The Tamjets TJ90 is basically a downsized version of the TJ100. With this the fan shares all the same parts as the TJ100. With a very low weight, rigid carbon fiber shroud, aluminum motor mount body for improved cooling, is a high performance carbon fiber EDF Unit for demanding applications. The TJ90 was designed with NeuMotors in mind. In order to accommodate also motors with larger diameter, 2 versions of the TJ90 are available. One suitable for NeuMotors 14xx series (~36mm diameter) and one suitable for the larger diameter NeuMotor 15xx series (~38mm diameter).
32oz / 950ml Overflow Tank for Turbine and gasoline models. Extend your flight time by attaching this auxiliary overflow tank to your turbine jet during start-up and taxi operation. Tank comes ready assembled with all fuel lines and Festo connectors.
package of 3 TamJets Aluminum Fuel Stopper Upgrade Kits. The aluminum stopper kit works with any composite fuel tank and most fuel stoppers included in composite fuel tank kits. Improves seal of any composite fuel tank and avoids air/fuel leaks.
We have extended our range of connectors suitable for air retracts and turbine fuel/gas tubing. New in stock are the following Festo Connectors - Festo 3mm-3mm Straight - Festo 4mm-3mm Straight - Festo 4mm-4mm Straight - Festo 6mm-6mm Straight - Festo 4mm Shut Off Valve - Festo Shut Off Valve Mount .
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