Designed in Brazil by the Embraer Aero Company, one of the worlds largest modern aircraft companies who specialize in specific market segments and produce a range of mid size passenger aircraft and business jets. Most of us will have seen the Red Embraer 190 jets that are used by Virgin Airlines.
The Emb 314 is a later day update of the more recognisable Emb 312 that lots of people are familiar with. There are a number of model manufacturers producing a variety of sizes of the 312 Tucano, and most fly very well.
The main differences between the two planes is the up-rated engine, for more power. This necessitates an increase in fuselage length and depth, and fin size. This makes the new 314 an extremely stable learning platform as well as being an excellent gun platform in the light attack and counter insurgency role.
The wings and stab remain almost identical.
The 314 Super Tucano and the ALX ground attack variant can carry am impressive and diverse weapons payload from half inch guns to most types of modern missiles and bombs. They have been a most valuable tool in the war against the drug cartels in South America, who use a variety of aircraft to move their drugs around and toward the U.S. The Tucano’s have shot down a large number of these planes. There is a great video on U-Tube of a US Awack plane directing a Tucano onto a Drug plane, and the final moments of it being destroyed.
The 314 is the latest acquisition of the US Navy, the cockpits being fitted with the latest in avionics, and can be customised to replicate the cockpits of a number of front line fighter jets for training purposes. These include the F-18, F-16, Hawk 100 and Eurofighter Typhoon.
Specs. Wingspan – 11.14m, Length – 11.42m, Power – Pratt and Whitney PT6A-68/3 Turboprop, Prop – Hartzell Five blade Constant Speed,
Rated at +7G and –3.5G, Speed is 560Kph, and duration is 6.5 hours.
My model grew from a desire to have a plane that was stable, fully aerobatic, but with little of the inherent drawbacks of the usual warbirds. Also to be able to handle wind well, have a bit of a Wow factor, and to be something that has not been seen in competition before. I hope it fly’s as well as I think it will.
The model is mostly traditional Balsa and Ply construction, with part of the 3 piece wings done in foam and carbon fibre. The core is a ply fuse crutch witch carries the load from the motor, wings and undercarriage, then the shaping formers are added. This is covered in stringers and finally 2.5mm balsa. This is all fibre-glassed with 3⁄4 oz cloth and Z-poxy resin.
The wings are in 3 pieces, with the centre section having 2 full width and depth ply stringers that support the landing gear and the tubes for the outer wing joiners. The outer panels are foam and balsa with fibreglass tubes and ply support ribs.
Retracts are home made, and operate through 85 degrees, and 110 degrees for the nose leg. The wheels are being CNC machined to replicate the originals, and with pneumatic brakes in the main wheels operated by a home made proportional valve. (hope it allworks). There are 3 separate lighting systems.
One for the Green and Red lights on the wing tips and the strobes on the fuse top and bottom, and landing lights operated from the flap servo. These are modified units from a DIY kit from JayCar. (hope this works too)
Power is from a D.A. 85cc petrol engine, with a custom made muffler/square canister pipe. A 6 inch Tru-Turn spinner and a 27*10 Mejezlik carbon prop.
The model is Quarter scale, and is 2.78 meters spans and 2.85 meters long. Weight should be about 32 ponds by the time I get all the gear and batteries into it.
Colour will be Camouflage Green and Grey, and will have 4 wing mounts for stores. I intend to carry 2 drop tanks and 2 bombs. (hope they work properly)
Radio will be the good old JR 10x, on 2.4g, with lots of servos. 2 for Elevators, 2 for Ailerons, 1 big one on rudder, 2 for flaps, 4 for bomb drop, 1 for retracts, 1 for throttle, 1 for choke, 1 for engine kill, and I may just chuck 1 into the fuse in case it is needed for something else. So only 15 servos really, so there will be a battery for the ignition, 2 for flight loads, and 3 single 9 volts for lighting.
It has been a lot of work, but a great experience in researching the plane and finding pictures and drawings. But the plane now sits on the bench in one piece, and it look pretty good. At least it’s big enough that I won’t have to bend down to push it along the ground. I just hope it all works.