Now available: The new JetTeng (JTM) ViperJet in one of 5 interesting colors:
Full size Information: The Viper Jet is a jet aircraft designed and produced by Viper Aircraft Corporation in kit form for homebuilding. It is a conventional, low-wing monoplane with swept wings and tail and two seats in tandem under a bubble canopy. The jet intakes are located at the sides of the fuselage and the tricycle undercarriage is retractable. Construction throughout is of composite materials.
Product Information: The JTM ViperJet in the colors of the High Performance Aircraft Training school (HPAT) is a high performance EDF Jet in full composite design for 90mm Fan units such as the Schuebeler DS-51 or WeMoTec Midi Fan Pro. A turbine conversion to JetCat P-20, Lambert T25 or Wren 44 (see video below) can be done easily. Please check with us on suitable turbines, pipes and accessories. The model features a full composite fuselage and wing with retract hard points pre-installed in the nose and retract hatches pre-cut in the wing. The model comes completely pre-painted with all decals applied and protected by a clear coat. Further is the cockpit glued and all hatches are assembled and locks are installed in place. This model is truly ARF with all the major work done for you. Retracts and suitable scale oleo struts are available as option.
Pack contents: Fully painted and finished glass fiber fuselage, fully assembled vertical fin and pre-installed ducting, clear canopy with pre-installed lock, one-piece fully painted and finished glass fiber wing with aileron, flap and retract hatches, exhaust ducting sheet, small parts, hardware pack, gear door covers.
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).
The second episode of FlyBoyTha1’s JTM BAE Hawk Building video series.
All servos are installed, retracts are ready.
Next Step: Fan installation, for which he takes a trip down to TamJets to get some new “goodies”.
Some pictures of our FlyFly Aermacchi MB-339 in Frecce Tricolori colors. For this EDF Jet we have chosen the following setup:
Fan: WeMoTec Midi Fan Pro (90mm)
Motor: HET-RC 600-37-2
ESC: HET-RC 75A
Battery: Hyperion G3 4200mAh 6S 35C
Retracts: Tamjets Mini Air Retracts
With this setup the fan generates around 1.4kW of Power which allows for easy take-offs from concrete and grass fields.
We have further re-enforced the wing with carbon rods to avoid possible wing folding issues. The carbon rod was inserted in a groove cut into the bottom wing from close to air duct till all the way out to the retract mounts. This as strengthened the area between the outer, factory pre-installed carbon re-enforcements and the wing center section.
Some Info on the real plane: The Aermacchi MB-339 is an Italian military trainer and light attack aircraft. It was developed as a replacement for the earlier MB-326.
The MB-339 is of conventional configuration, and shares much of the 326’s airframe. It has a low, un-swept wing with tip tanks and jet intakes in the roots, tricycle undercarriage, and accommodation for the student and instructor in tandem. The most significant revision was a redesign of the forward fuselage to raise the instructor’s seat to allow visibility over and past the student pilot’s head.
The first flight took place on 12 August 1976 and deliveries to the Italian Air Force commenced in 1979.Still in production in 2004 in an enhanced version with a much-modernised cockpit. Over 200 MB-339s have been built, with roughly half of them going to the Italian Air Force.
The Lockheed-Aermacchi MB-339 T-Bird II was a losing contender in the USA’s Joint Primary Aircraft Training System (JPATS) aircraft selection. Among the seven to enter, the Raytheon/Pilatus entry won, which became the T-6 Texan II. According to an article posted on the Italian website ‘Il Porto Franci’, called ‘Armi e finanziamenti nel corno d’Africa’, Eritrea paid about $US 50 million for six MB-339 CEs in 1997. This is the original MB-339 with more advanced avionics for the ground attack role, RWR, uprated Viper 680-43 engine, and larger wingtip tanks. It is capable of carrying Sidewinder AAMs, AGM-65 Maverick AGMs, and laser-guided bombs. Unit price of the MB-339C would have to be somewhere around $US 8.3 million in 1997 dollars.
