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40% Aluminum DHC-2 Beaver

40% Aluminum DHC-2 Beaver

Would you believe over 2,000 rivets hold this beautiful airframe together? Just like its full-size big brother, this 230-inch-span scale aircraft has aluminum sheet covering. A Moki 420cc 5-cylinder radial engine spinning a custom 40-inch prop lets it fly at speeds of up to 60mph. Thanks to Pete and Dean Coxon for filming this giant at the LMA Airshow at Cosford, UK!

Updated: July 30, 2015 — 11:26 AM
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14 Comments

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  1. Nice bird! As for the pilot almost sticking his hand in to the running prop at 21 seconds, not very smart. The plane is very under powered and you can hear it struggling in flight. The power to weight ratio is way off and causing it to be very unstable. Those dhc2’s should be able to come in and “hover” land on 50 feet of runway. Have a look at the full scale one on you tube, search dhc2 short stops and hover. I still don’t see a point in going to this size of rc model. Get in a full size aircraft, it’s much safer and enjoyable. That aircraft should be grounded till one can figure out the power to weight ratio better. Be safe about this hobby otherwise we will all suffer sooner than later.

    1. I don’t think it seemed underpowered. He never even got close to stalling, and was flying faster than scale throughout most of the video.

      But even if it was underpowered, why on Earth would you consider it a safety issue? I have several gliders which have no motor at all; are those too dangerous to fly as well? A low power-to-weight ratio has nothing to do with stability and very little to do with airworthiness.

      My biggest criticism here is that the pilot was very clearly neglecting his rudder. All of his turns were uncoordinated, and that second takeoff was rather exciting, and not in a good way.

    2. Just a bit on the power to weight ratio. I think you have it wrong! If you were paying attention, and you weren’t, he finally opened it up late in the video! Clearly he was flying scale! Also, the reason for building such an enormous bird is because you want to! You see, everyone else does things exactly the way you do! Bet you don’t believe me do you? Here is how it goes……………….ANY WAY I WANT TO! And……..If you don’t like it……….tough beans! Tell me thats not
      how you do it Now, just like everything else that comes along, it will take time but rules and regulations will be put into place. Quit being nay sayers think possitive. It’s going to get bigger wheather you like it or not! I’m sure there were areas you never thought you’de never go into or do………….did you finally? Got one of them yet? Spent ‘that much money’ yet? What is the limit? Where is your limit? Well, clearly it has nothing to do with anyone elses limit! Every man for himself!!!!!!!!!!!!! YOU GO BEAVER DUDE!

  2. Beautiful craftsmanship! A bit scary risking all those hours of work and $$$ in those windy conditions. Can only guess at the power to weight ratio w/o specific info–it sure didn’t jump off the runway. On planes of this size the pilots always seem to be: hand starting the motor and standing behind the running prop for final adjustments (or using an rpm meter). The camera angles make this look risky (but so is being a spectator of models big enough to take you out)!

  3. Well I wanted to write more, but Brad pretty much covered most of my comments. Thank you Brad!

  4. Well contrary to the others, I think this guy did a great job of flying a scale plane in a scale manner. His landings need some work but other than that he’s done a great job. Very stable in the air and the radial is humming along. Just need to let go of the elevator when the wheels touch so it doesn’t bounce.

  5. Haha sorry Aris kosmides, maybe you can comment why the flaps weren’t used. I’m guessing because the power wasn’t there for the excessive drag. I failed to mention the part about checking rpms on a bird this big. I always run a Y-harness in union with my crank pickup and use onboard telemetry. In my opinion it’s much safer and accurate as the magnetic pickup doesn’t rely on optic light to determine the rotational speed. I once tested a well know optic rpm tester (won’t say the brand) against my onboard magnetic rpm sensor and the optical sensor would give me readings of 320 to 340 rpm difference on the low side. Their still great to get a baseline idle but that’s about it. And we all know WOT on the ground is a completely different story in the air.

  6. Magnificent airplane. I personally think the take off was fairly scale. I made several skydives out of a Beaver in Titusville, Fl. many years ago and I remember the plane wouldn’t jump off the ground or set the world on fire as far as speed is concerned either. Did have a nice climb rate though. I see no need to ground this airplane for any reason. All in all, a beautiful piece of craftsmanship.

  7. The model is beautifull but the flying is very bad for this size of model or any other model for that matter. Maybe the pilot was nervous because all attention or he needs to acquire the flying skills needed for this scale of airplane. The only other solution is for him to build and someone else fly!

  8. Why not just put a radio in a real plane. Model aviation is getting out of hand and sooner or later we will pay the price. If this hobby continues to get out of hand with people building stuff like this……this hobby will suffer with endless restrictions which will prevent people from getting into it. It will happen!

  9. Another case of more $ than common sense. Learn how to use the rudder. And yes, way underpowered. Nice looking thougj

  10. Learn the rudder.

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