Tuesday, June 6, 2017

Largest 65% Scale RC Fokker Triplane | 550cc Engine | LMA Tibenham - 2017

The pilot is astounding since the video isn't comprised of the typical high / low flybys as it's full of incredible aerobatics and the stall speed of the aircraft is an amazement.  When he lands it, the descent is almost vertical and there's no rollout.  Unbelievable.

Steve Carr putting his latest warbird through her paces at the LMA Public RC Model Aircraft Show at the former RAF airbase, Tibenham in Suffolk.

She is the 65% scale Fokker DR1 Triplane, the largest in the world, built from an ARTF kit!

Check out the two guys at the beginning of the video holding on to her because she wants to lift off the ground with the 10/15 mph gusting wind flowing over her wings - crazy!

She is a replace of the famous Baron von Richthofen's "Red Baron" triplane but she is far more maneuverable than the real triplane.

Wingspan: 4.8 meters
4 multiplex receivers onboard, 1 in each wing and two in the tail.
All servos are HITEC 44kg torque, 3 per aileron, 2 per elevator half, 3 on the rudder

J. Perkins LIPOS batteries for RX / servo power

Steve is a mechanic / engineer and he designed the 550cc flat four petrol engine himself.  The engine is basedon the 2W 275 engine but Steve designed his own crankshaft, crankcase, manifolds, exhaust, and electronic ignition.  Cylinders and pistons are from the 3W 275 engine!

Here's some info on the real aircraft -

Wingspan: 7.19 m
Top speed: 185 km/h
Length: 5.77 m
Range: 300 km
Engine type: Rotary engine
Manufacturer: Fokker
Number built: 320

The Fokker Dr.I (Dreidecker, "triplane" in German) was a World War I fighter aircraft built by Fokker-Flugzeugwerke. The Dr.I saw widespread service in the spring of 1918. It became famous as the aircraft in which Manfred von Richthofen gained his last 19 victories, and in which he was killed on 21 April 1918.

In February 1917, the Sopwith Triplane began to appear over the Western Front.[1] Despite its single Vickers machine gun armament, the Sopwith swiftly proved itself superior to the more heavily armed Albatros fighters then in use by the Luftstreitkräfte. In April 1917, Anthony Fokker viewed a captured Sopwith Triplane while visiting Jasta 11. Upon his return to the Schwerin factory, Fokker instructed Reinhold Platz to build a triplane, but gave him no further information about the Sopwith design. Platz responded with the V.4, a small, rotary-powered triplane with a steel tube fuselage and thick cantilever wings, first developed during Fokker's government-mandated collaboration with Hugo Junkers. Initial tests revealed that the V.4 had unacceptably high control forces resulting from the use of unbalanced ailerons and elevators.

Instead of submitting the V.4 for a type test, Fokker produced a revised prototype designated V.5. The most notable changes were the introduction of horn-balanced ailerons and elevators, as well as longer-span wings. The V.5 also featured interplane struts, which were not necessary from a structural standpoint, but which minimized wing flexing. On 14 July 1917, Idflieg issued an order for 20 pre-production aircraft. The V.5 prototype, serial 101/17, was tested to destruction at Adlershof on 11 August 1917.

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