The Twin Telemaster Design Process

We have seen many modelers take our Telemaster RC aircraft and customize it so it can be used as an instrumentation platform. Some have already turned it into a twin engine aircraft. Seeing how the Telemaster has been used has inspired us to take a hard look at the best characteristics of the Telemaster and actively pursue creating a Twin Engine Telemaster that has been specifically designed for use as an instrumentation platform.

Twin Telemaster Final Design

The Characteristics of the Twin Telemaster

Absolutely every design decision made with our new Twin Telemaster has taken into consideration how the instrumentation will mount, how it will affect the weight and flight of the aircraft, and how we can provide unobstructed views of all cameras on board. We took advantage of the lifting tail and improved the landing and flight characteristics by using a retractable tricycle landing gear configuration.

  • Mostly Open Fuselage
  • Downward Looking Camera
  • Forward Looking Instruments
  • Retractable Tricycle Landing Gear

Testing, Testing, and More Testing

With the design taken care of, it was time to start the testing process. We built, tested, flew, and celebrated. We scratched our heads, redesigned, built again, tested, flight testing next, We will try not to crash. We learn from our tests, built again while documenting our assembly process, and will make the decision when it is time to have others try to build this plane. We will get our “Alpha-Builders” early production kits, along with an instruction set, and wait for the feedback. A couple final tweaks and modifications later, we will be done and getting ready to share this plane to pilots like you!

The End Result

The Twin Telemaster is a heavy-lifting aircraft that is not only stable and predictable flyer, but also really good-looking. There are so many design details to talk about that we are going to have to break it up over a series of blog posts. Next time we will discuss the engine and batteries chosen for our Twin Telemaster. So when can you get your Twin Telemaster? This RC aircraft is in the final stages of development for production and will be available to you very soon.

Share the Hobby Experience!
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27 Responses to The Twin Telemaster Design Process

  1. Jesse Brinson says:

    Great! It has taken me 16 years to finally finish my ARC Senior Telemaster and now you come out with this!!! Wow! Maybe it won’t take as long to build this one. Wait. Two engines? 32 years????………

    Been in love with the Tele since I learned on a 40 size in the 90′s. Keep up the great work!

  2. Tom Soden says:

    I have low wing Telemaster (8 years old ) with flaps and and a .60 glow engine. This is still my favorite plane and all my friends love watching especially when I do a slow , low fly by with flaps down. They can’t get over how slow I can fly her coming across the field.
    I have been asked numerous times if they can purchase one but I tell them they are no longer made not even in a kit form.
    I will eagerly wait for the updates of the new twin and with retracts , all I can say is “WOW”.
    Regards ,
    Tom Soden

    • Hobby Express Team says:

      We love the slow fly capability of this family of planes too. Glad you enjoy it so much but you have to share the fun!

      Telemaster are available in ARF from Hobby Express as well as the magnificent “Made In Tennessee” laser cut kits of all sizes. Micro to the 12′ monster Telemasters could join you at the field today. You can tell your friends, we will make Telemasters for ever!!

      Fly well!

  3. Phil says:

    Just looking at the picture the fuselage is too close to the ground.
    An inch more on the landing should help .
    Just my 2 cents.
    What size is the twin on the picture ?

    • Hobby Express Team says:

      This is the 8 foot Telemaster we have evolved to be the first production twin.

      Landing gear… We agree with you and need to keep testing it for optimum length. The image is of the first airframe.

      The issue is that the longer the gear the more leverage you give the forces applied to the structures at the wing mount of the gear. Too long and we rip off on landing. Too short, and there is no room for rotation or flying field weirdness.

      We will advise the builder on the best length we think should be used, but you know how builders love to modify and experiment! We will welcome and get lots of great input from the builders on alternatives that work.

      Fly well!

  4. Gerardo Konig says:

    What is the wingspan? If I get this the first change would be aluminum or carbon fiber landing gear, and it would be a tail dragger…

    • Hobby Express Team says:


      This has an 8′ span and is based on the 60 size Senior Telemaster laser cut kit (TEL1600)

      Like your are thinking, it is using the aluminum retracts now.

      Making it a tail dragger might be a mod for later. Interesting idea. We were working on the idea of making it the safest plane to put expensive equipment inside and returning it all home safely. With the tricycle configuration, we cut out much of the risk of ground-loop on landing with the CG ahead of the main landing gear. Save the instruments!

      Fly well!

  5. Gerardo Konig says:

    What is the wingspan. My fist change would be to make it a tail-dragger.

    • Hobby Express Team says:

      She’s an 8′ span.

      Interestingly, we can’t find many examples of a high wing twin engine tail dragger… This begs the question; why not?

      While there must be many we missed, outside the examples of the German Luftwaffe WWII Dornier made Do-217, DO 28A/B, Do 27D-1, Do 28D, and the strange looking Do 29 there are very few high wing aircraft configured like a tail dragging version of the twin Telemaster.

      We found that the Boeing AT-15 was a high wing tail dragger American twin-engined bomber crew trainer. However, only two prototypes, designated XAT-15, were built.

      If you find more, let us know. It was fun researching.
      Fly well!

      • Wilton Leritte says:

        The Bristol 170 freighter and super freighter are two examples of high wing twin engine tail dragger airplane. Will

  6. Alan Weaving says:

    Ever considered a semi-scale landing gear based around the DeHavilland / Bombardier DASH-8/ 100 Series ? With legs a little chunkier and a pair of 3/4/or 5 Bladed Props and you are almost there ! Looking Good so far ! Best of Luck with this project !

    • Hobby Express Team says:

      That DASH-8 gear structure would look very nice here. I think the idea of a multi-blade prop is a nice way to scale a bit more and add ground clearance at the prop.

      Clever thoughts! Thank you.

      Fly well!

  7. Brandon Lu says:


    I’m the coordinator of the UC Riverside Unmanned Aerial System project, and we have had very good success with telemaster platforms. (Really, great job designing it!)

    Is there any chance for a university club to become a plane beta-tester?

    • Hobby Express Team says:

      YES! In fact, our CEO, Mark Cleveland met today with the Operations Manager of the UAS Department of Aerospace at Middle Tennessee State University. We are thrilled to be engaging with clubs and educational institutions all over the world. You all have something in common. A never ending pursuit of excellence.

      We would love to have your program on the ALPHA Builder Team! Please e-mail contact info to

  8. Nick Pazuros says:

    One of my favorite airplanes of all time was the “Caribou” (De Haviland?) a high wing, twin, STOL, slow but gobs of power, with a ramp that made it a dream to jump as a paratrooper. I can see how this new design could be made into something similar. Never have seen a model of the Caribou…. Maybe?

    • Hobby Express Team says:

      Remember, this is a Telemaster, with a certain tradition of its own. We appreciate great designs and great airplanes. We went online to look at the Caribou — ohhhh pretty! You got us thinking…

  9. Brotozoa says:

    As is look s almost like a Catalina. Good idea but I agree, landing gear needs work. I avoid planes with wing-mounted LG. My vote is to use Cub-like suspension and gear mounted to a well-designed fuse. Should make your CG tests less complicated. A couple of 25 or 32 size motors? Should be a shot in the Telemaster arm.

    • Hobby Express Team says:

      Cub LG are tried and true for sure but would block some of the options for downward looking electronic bits. Always trade-offs with airplanes! :)

  10. John Emery says:

    This looks like a very interesting addition to the Telemaster line. I would love the 8′ span but simply don’t have room to store it or transport it. Does the wing break-down or would you ever consider offering the size to maybe more like the 40 size version. Looking forward to the release!

    • Hobby Express Team says:

      Ah, you’ll be happy to know the wings for this platform feature our Telemaster twist-lock technology. Simply put, she gets real small, she fits in a car, hides in a closet from your significant other… This girl is out of the car and into the air in less than ten minutes.

      Envy at the field is yours!

  11. Tom Xiong says:

    It’s such a cool looking plane that I just can’t help but analyze all its glory and think of all the possible applications. Though I’m at a lost at this detail. Does “downward pointing camera” and its clearance from the belly to ground imply a design intent of mounting the camera inside the fuselage; ultimately, sacrificing gimballing of cameras in favor of reducing landing gear length for rigidity?

  12. MIGUEL TARTARA says:


  13. Michael Lenz says:

    Ok when can we pre order one. it is exactly what I am looking for.


  14. Wilton Leritte says:

    Will this twin be a separate kit that just has the items needed to make the Telemaster v2 a twin or will it be a total new kit to make a Telemaster v2 twin? I remember a twin engine freighter that was a tail dragger. Thank you Will

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