The Alouette (French for lark) II Sud-Est SE.3130 is powered by a Turboméca Artouste II, the Sud-Aviation SA-318C by an Astazou IV. The manufacturer consortium Aérospatiale produced the Alouette II with a skid landing gear, three-blade main rotor and a two-blade tail rotor.
Apart from a few stabilising struts, the cabin, which is not separated from the cockpit, is fully glazed. The fuselage frame and the stern boom are of tubular steel construction and are not clad. The lack of panelling gives a clear view and good access to the propulsion elements behind the cockpit. The Alouette was widely used in the military and civilian sector for passenger transport and as an observer, but above all in flight training (here mainly due to the single engine version for performing autorotations). In the past, it was also sometimes used for patient transport in air rescue, but only sporadically due to space constraints.
As the first helicopter model, the Alouette II was used by numerous German police helicopter squadrons, including for mission control and border surveillance at the Federal Border Guard[1] (today the Federal Police, until the end of 2007), the German Bundeswehr (until the beginning of 2008), the Swiss companies Air Zermatt and Air-Glaciers (especially its successor model Lama), the Swiss Air Force, the Turkish police, the French and Belgian armed forces and the Argentinean Air Force.
The Alouette II is particularly suitable for training young pilots because the manual indirect control system is forgiving of control errors and allows flying without automatic control, i.e. with non-stabilized controls. The Alouette II does not have the flight stabilising elements found in modern twin-engined helicopters. This means that the pilot must be very attentive and conscious in handling the control elements and thus gets a good feeling of how the machine reacts to the operation of the controls.
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The scale replica of the model is based on the structure of the original Alouette II. The fuselage framework and the stern boom are made of stainless steel tubular steel and are not covered. The stainless steel tubes are brazed with silver solder. The frame construction in the cockpit area is self-supporting and accommodates the batteries, receiver, turbine electronics and landing lights underneath the cockpit floor. All fixing points for turbine cladding, holder system Airintakes, exhaust pipe are provided on the frame. Same for battery box, fire extinguisher, paraffin pump and magnetic valves.
The scale pulpit captivates by its narrow frames and gives a very original impression of the pulpit replica after glazing. Optionally, the scale character of the canopy can be greatly enhanced by rivet reproductions, screws and the reproduction of sheet metal reinforcements. The pulpit heating can also be reproduced with 3D printed parts, among many other details. The cabin is pushed over the stem and is connected to the tubular steel frame with 2 M 4 screws. The windscreen set is included. The windows are fitted from the inside and fixed with super glue.
The necessary 3-piece sheet metal paneling behind the tank is provided with the typical indentations in the sheet metal. Optionally, the fold-down part can be cut out and fitted with a hinge strip to create a faithful replica of the original. The necessary drawings with dimensions are enclosed with the model.
The tail boom is removable and has stable connecting elements.
The tail rotor drive is mounted 6 times on the tail boom as on the original. The drive tube has a diameter of 6 mm and a wall thickness of 0.5 mm. The connection of mechanics, shaft, tail rotor is done by generously designed coupling systems.
A 5 litre GFK tank is accommodated in the tubular steel frame. A large sight glass allows the paraffin level in the tank to be monitored. Baffles in the tank ensure that the complete filling quantity can be flown off.
The landing gear with bracing is available in normal and scale version.
The swashplate control can be reproduced in its original form. For this purpose a servo mount is already installed behind the cabin. From here the original control unit can be connected to the swashplate via a lever. The swashplate then is in a three point linkage.
It is also possible to mount the servos into the mechanics and to steer the swashplate directly via 4 servos.
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Mechanics
Mechanics HF………….for Jakadowsky Turbines Pro 5000 and PRO 6000
Robust mechanism specially designed for Alouette II, III and Lama.
Sturdy GFK side plate screwed on a solid milled aluminium bolt form the basic frame of the mechanism.
Between the spacer bars is an original bevel gear set by Jakadowsky which is manufactured with high precision and is driven by a main gear made of high-strength plastic. This main gear wheel is designed for the desired speed of the rotor head for the Alouette II and is milled from solid material especially for us. In this way we ensure 100% concentricity accuracy. The plastic main gear wheel then meshes with the pinion of the centrifugal clutch of the Jakadovsky turbine.
High-quality bearings complement the mechanics and allow for a long service life.
Main rotor head Speed ….. rpm
Tail rotor Speed ….. rpm
Mechanics for 12 and 15 mm main rotor shafts
All parts “Made in Germany”!
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rotor head
rotor head:
Scale replica of the 3-blade rotor head Alouette II with rigidly mounted blade connection shafts.
Reproduction completely made of metal on high-precision 5-axis processing machines, manufactured for us according to our drawings and designs.
Extremely good-natured and precisely controllable rotor head with an extreme attention to detail and reproduction of the scale view of the rotor head.
Blade handle 14 mm
Rotor head for 12 and 15 mm main rotor shafts
Rotor head completely assembled and painted
All parts “Made in Germany”!
Swashplate:
Scale replica of the Alouette II swashplate made of aluminium. Swash plate with integrated drivers
Version for 3 servos and for 4 servos.
Reproduction completely in metal on high-precision 5-axis processing machines manufactured for us according to our drawings and designs.
Swashplate completely mounted and painted with bearings
Swash plate for 12 or 15 mm shafts
All parts “Made in Germany”!
rotor blades:
Rotor blades 3 pieces finely balanced with a 14 mm mounting
Length …. mm
width … mm
Tail rotor:
The tail rotor is completely made of aluminium with a 1:1 bevel gear combination with a diameter of 23.3 mm. The bevel gears have cyclo-palloid teeth module 0.6 and the tooth flanks are induction hardened.
This way we achieve sufficient strength for large models with increased torque which the tail rotor has to compensate for.
The direction of rotation is designed for the Alouette II, but can be changed at any time by changing the gears in the gearbox. Thus a later conversion to another direction of rotation or another side is possible.
A 8mm hollow drilled, case hardened and ground tail rotor shaft drives the rotor with steel centre piece and mounts blade holders.
Tail rotor completely made of metal on high-precision 5-axis processing machines manufactured for us according to our drawings and designs.
Blade connection 8mm or 10mm
With 8mm blade holder fixing screw M3 12.9
For 10mm blade holder fixing screw M4 12.9
Tail rotor completely assembled and gear clearance adjusted.
All parts “Made in Germany”!
his way we achieve sufficient strength for large models with increased torque which the tail rotor has to compensate for.
The direction of rotation is designed for the Alouette II, but can be changed at any time by changing the gears in the gearbox. Thus a later conversion to another direction of rotation or another side is possible.
A 8mm hollow drilled, case hardened and ground tail rotor shaft drives the rotor with steel centre piece and mounts blade holders.
Tail rotor completely made of metal on high-precision 5-axis processing machines manufactured for us according to our drawings and designs.
Blade connection 8mm or 10mm
With 8mm blade holder fixing screw M3 12.9
For 10mm blade holder fixing screw M4 12.9
Tail rotor completely assembled and gear clearance adjusted.
All parts “Made in Germany”!
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Drive system
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Scale parts
Available as optional 3 D pressure parts or made of stainless steel tube:
Complete cockpit
Cabin lighting holder left and right
Bottom lighting bracket
Extendable landing light
Cabin door hinges with replica of the rapid ejection
Cabins door handle
Ventilation flap on the front of the cabin
Cabins Heating connection
Oil cooler, 2 x oil accumulator, oil pump
Electrical distributor
Rotor brake
Gear casing with support tube Frame made of stainless steel tube
Airintakes with holding tube Frame made of stainless steel tube
Combustion chamber cladding with double stainless steel tube
Stainless steel flue pipe with air heater end piece
Exhaust pipe Stainless steel pipe holder
Cabins heating mixer, mixing valve, air filter
Battery box
Door hinges with emergency release
Ventilation cover front
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