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Archive April | RC-Warbirds Blog
Apr 28 2010

JTM BAE Hawk – Video Review 1

Thanks to FlyBoyTha1 there is now a first review Video of the JTM Hawk available on YouTube.
Check it out below:


Apr 19 2010

Newsletter – April 2010

Price REDUCTION on HET-RC Planes

Het PlanesHet Planes

Massive Price Reduction
We have reduced all the prices of our HET-RC EDF Jets with immediate effect. Get your 70mm, twin or 90mm EDF Jet today.

Het Planes

 

JTM Hawks – V2

Product PictureWe are happy to announce the arrival of the first Version 2 JTM Hawks. The new updated version now comes with changed retract positions, ducting suitable for 90mm fan units and improved elevator linkage.
This model is a hot seller and usually sold as soon as it arrives as JTM has not yet fully ramped up the production of the kit. We therefore accept pre-orders of the model on a first come first serve basis. Drop us an email for more details and up to date availability on this great model.

Product PictureProduct Picture

 

Schuebeler DS-94-DIA HST

Product PictureThe brand new Schuebeler DS-94-HST 128mm High Static Thrust EDF system in plug’n play configuration.
The complete Fan system comes ready assembled with integrated motor and installed fan fix, cables fully installed and YGA 160 HV ESC pre-programmed and cabled to suite the Fan system.
With the DS-94-DIA HST Schuebeler Composite launches a completely new jet propulsion system. The system is based on a new 12-blade axial compressor wheel which is driven by the all new Schuebeler electronic commutated motor.
The 128 mm axial compressor generates a surpassing compression ratio and can therefore be integrated much more efficiently in huge jet models than classic ducted fans. The rotational speed level is only 26.500 rpm at an impressive exhaust speed of 95 m/s and a thrust of 10 kg. This high thrust impulse is therefore generated by a high exhaust speed and a high inner efficiency of the axial fan stage. In figures that means you can integrate this fan in jets up to 11 kg and an exhaust diameter of just 105 mm. The design of the 12-blade axial compressor wheel is based on speed ratios which are similar to the ratios of a full scale turbofan. That results besides a high efficiency in a perfect optical scale appearance and a sound which can only be compared to full scale jet engines. A silent whispering and fizzling of the axial compressor at idle rpm is predominated by an impressive jetstream noise coming from the exhaust at full throttle.
Please click on the picture above for more info…..

 

 

Schuebeler DS-77-DIA HST

Product PictureBased on the design of the DS-94-HST, the new Schuebeler DS-77-HST is a a 120mm EDF unit with high static thrust.
An extraordinary challenge was the development of an electronic commuted DC motor that perfectly fits to the axial fan.
Taking the larger DS-94-HST as an example: The 12-blade compressor demands an impressive torque of 2,2 Nm at 26.500 rpm which can only be generated by a high torque motor of high diameter and shorter length. Consequently the new DSM 6740 Schuebeler motor has a diameter of 67 mm and a magnet length of 40 mm. This motor is fully integrated in the axialfan to assign a huge area for the main airflow. In addition to that the motor is perfectly.
Cooled and needs no efficiency decreasing internal ventilator. The motor is based on a two pole design to allow a flexible fit of the motor characteristics to the needs of the axial fan. Nevertheless the windings sit in a 12 slot stator to increase the torque and to avoid any winding deformation at high temperatures. The magnet is attached to a sheeted magnet holder and reinforced by a bandage made of IMS carbon fibre which allows a high rpm tolerance. The whole motor design was optimized in respect of excessive heat tolerance and of course a high efficiency even at high currents. The mechanical design of the Schuebeler DSM 6740 motor is based on established mechanical engineering and distinguishes itself by a shaft mount consisting of a fixed bearing and a pre-stressed floating bearing. Front- and endbell are fixed by 8 countersunk head screws, all surfaces are protected by hard anodizing. The result is a very high durability in combination with a low mechanical soundscape which allows the whispering of the axial fan to predominate even at idle rpm.
The conjunction between motor and axial fan is made by 4 handmade carbon stators which also guide the 3 motor phases through the UHM carbon sandwich shroud. The conversion of shaftpower to streampower is accomplished by 12 handmade carbon rotor blades which sit form-closed in precision aluminum swivels.

 

Schuebeler In-Fuse Intake Ring

Product PictureThe Schuebeler In-Fuse intake ring for both the DS-77-HST and DS-94-HST allows the easy installation of the HST fan system in fuses without EDF intake ducting. The large intake lip allows the fan to draw air from the standard turbine ducting without the need for a fully molded intake to fit the fan unit.

 

New selection of NeuMotors

Product PictureJust in: a new selection of the popular NeuMotors 15xx series for 90mm EDF units.
Currently available models include:
- 1512 2.5D for 5-6S LiPo
- 1512 3D for 6-8S LiPo
- 1512 2Y for 8-10S LiPo
- 1515 3D for 10-12S LiPo
Make sure to visit our webpage frequently for more NeuMotors arrivals (next to arrive are 14xx series motors)

 

 

Airline for Retracts

Product PictureJet Legend HD Airline for Air Retracts and Brakes. Available in different colors. One package includes 10 meter of airline.

 

 

 

 

Air Joint/Link

Product PictureAluminum Air Joint / Link (Red Color) to securely join airlines (e.g. between fuselage and wing). Suitable for Jet Legend Airlines and any other 3mm or 1/8” retract / brake Air Line.

 

 

 

Twisted HD Servo extension

Product PictureHitech HD Twisted Servo Extension with 22AWG wires. Specially designed for the use with Digital Servos. Gold platted connectors.


Apr 16 2010

We are now on Facebook

We have just launched our very own Facebook page.
Click at the button below to find us.

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Your RC-Warbirds Team


Apr 12 2010

Preview 2: JTM L-39

Check out the latest flight video of the JTM L-39 below.


Apr 10 2010

Preview: JTM L-39

Jet Teng is working with high pressure on their latest full composite EDF jet for 90mm Fan units.

JetTeng L-39 Albatros Breitling

The L-39 Albatross will have the following dimensions:

  • Length:       1380mm
  • Wing Span: 1075mm

Like the JTM Hawk, the L-39 will come pre-painted (final color schemes will be announced soon) and retract ready.

We will post updates of the new model as soon as they become available.

For the time being, a short video of the L-39’s first ever flight by the JTM factory pilot.

Some info on the full size plane:
The Aero L-39 Albatros is a high-performance jet trainer aircraft developed in Czechoslovakia to meet requirements for a “C-39″ (C for cvičný – trainer) during the 1960s to replace the L-29 Delfín. It was the first of the second-generation jet trainers, and the first turbofan-powered trainer produced, and was later updated as the L-59 Super Albatros and as the L-139 (prototype L-39 with engine Garrett TFE731). The design is still produced in an evolved state as the L-159 ALCA, while more than 2,800 L-39s still serve with over 30 air forces around the world. The Albatros – the most widely used jet trainer in the world – is versatile, seeing duty in light-attack missions as well as in basic and advanced pilot training.

JTM L-39 90mm EDF Jet


Apr 8 2010

F-100 Super Sabre

flyfly f-100 Another great project by Rolf.
This FlyFly F-100 Super Sabre was build, primed and then repainted by Rolf.

The Model features retracts, oleo struts, a 90mm EDF unit, full lighting kit incl. afterburner simulation.
Some aftermarket scale parts have been added in order to improve the look of the model.

 

Some info on the full size plane:
The North American F-100 Super Sabre was a supersonic jet fighter aircraft that served with the United States Air Force (USAF) from 1954 to 1971 and with the Air National Guard (ANG) until 1979. As the first of the Century Series collection of USAF jet fighters, it was capable of supersonic speed in level flight. The F-100 was originally designed as a higher performance follow-on to the F-86 Sabre air superiority fighter.

Adapted as a fighter bomber, the F-100 would be supplanted by the Mach 2 class F-105 Thunderchief for strike missions over North Vietnam. The F-100 flew extensively over South Vietnam as the Air Force’s primary close air support jet until replaced by the more efficient subsonic A-7 Corsair II. The F-100 also served in several NATO air forces and with other US allies. In its later life, it was often referred to as "the Hun," a shortened version of "one hundred."

rolf's f-100 super sabre


Apr 4 2010

F-20 Tigershark

This HET-RC F-20 Tigershark was build and modified by Daniel.
Daniel took the standard HET-RC Kit and made a true masterpiece out of it.

het-rc f-20 tigerhsakr build by Daniel

His modified F-20 Tigershark features:

  • Fully functional air retracts (MAP Air Retracts)
  • Air brake (situated at the bottom of the fuselage)
  • Scale Elevator with anhydral
  • Aileron linkages below the wing (the retract keeps them clear of the ground)
  • Custom color scheme
  • Cockpit
  • Scale wing extensions

het f-20 tigershark custom The Plane is power by a MEGA 16-35-1.5, WeMoTec Mini Fan 480 Pro Fan, YGE 120A ESC and SLS 3200 35C LiPo.
The thrust generated by this setup tops 2kg which is more then enough to power this now 2010 gram heavy model.
A total of 7 servos are installed in the plane to power all the functions (retracts, steering, twin elevator, air brake…..)

We hope to add a video of the model soon.

Some info on the full size plane:
The F-20 Tigershark (initially F-5G) was a privately financed light fighter, designed and built by Northrop. Its development began in 1975 as a further evolution of Northrop’s F-5E Tiger II, featuring a new engine that greatly improved overall performance, and a modern avionics suite including a powerful and flexible radar. Compared with the F-5E, the F-20 was much faster, gained beyond visual range air-to-air capability, and had a full suite of air-to-ground modes capable of firing most U.S. weapons. With these improved capabilities, the F-20 became competitive with contemporary U.S. fighter designs like the F-16 Fighting Falcon, but was much less expensive to purchase and operate.

Much of the F-20’s development was carried out as part of a U.S. Department of Defense (DoD) project called "FX", which intended to sell less-advanced fighter designs to U.S. allies to limit the possibility of front-line U.S. technology falling into Soviet hands. FX developed out of a general re-working of U.S. military export policy started under the Carter administration in 1977. Although Northrop had high hopes for the F-20 in the international market, changes in policy following Ronald Reagan’s election left the F-20 competing for sales with front line fighters like the F-16. The development program was eventually abandoned in 1986 after three prototypes had been built and a fourth partially completed.


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