Sbach 300 RC Plane Plans

Sbach 300 RC Plane Plans

Materials: XPS foam 3 and 5mm 1050x500 (or Depron 3mm, 6mm);UHU Por glue
Balsa wood 4x4mm; Bamboo Skewers: 3x400 mm
Aircraft Birch Plywood 1,5 mm
Basswood Plywood 2 mm
Wingspan: 1000mm (≈40")
Wing area: 19,92 dm2
Wing loading: 17,4 g/dm2
Flying Weight: 346g (if the foam density is 30kg/m3 )
Motor: X2305 KV1450 (25g)
Propeller: 1047
Receiver: FrSky S6R (12g)
ESC: SunnySky X 18A (9g)
Servos:EMAX ES9052MD (5,5g) x 4 ,
LiHV battery: 1100mah 2S 7.6V
Stainless Steel Spring Wire 1,8 mm
Wheels 40 mm
Neodymium magnets 3x5mm
Carbon push rods: 500x2x1mm, horizontal stabilizer carbon tube 500x3x2mm
Hinge Linker Nylon Control Horn with Clevis (0,52+0,34g):
Control Horn (0,5g)
Hinge Linker (24mm):
Transparent plastic screws 4x45mm
Small Nylon screws: 2mm
Nylon hex socket screws: M4x8mm for Spinner

Laser Cut files SVG/DXF and paper templates

Paper printable PDF A3 (297 × 420mm) Download PDF,SVG/DXF (€7) в pубляx Download free example

Sbach 300 aerobatic RC Plane plans DXF

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sbach-300 rc fuselage

sbach 300 rc wing

XtremeAir Sbach 300 XA41 (1-seater) history

Advantages of Aerobatic Training and Competition in the XA series:

Sbach 300 (XA41) has been designed from the outset to present well to judges.
Immense strength ensures the pilot can focus on the complexities of flight without concern.
Size of the Sbach 300 makes it clearly visible throughout the aerobatic box
Snap rolls both positive and negative are easy to start and stop accurately up to 174 knots.
With maximum aileron deflection permitted from 50 to 225 knots the pilot always has enough rate of roll regardless of speed or roll combinations. Roll rates 180°/sec at 50kts, up to 450°/sec at 225 kts.
Wide chord, low revving prop coupled with a light weight airframe results in a quieter aircraft.

Factory installed smoke system provides 28 Liters (7 usg) of strong smoke for 9 minutes with easy automatic suction filling system so you can keep both, your hands and the aircraft, clean.
Large flight controls allow unmatched low speed control.
Equipped with Lycoming’s reliable engine Sbach 300 is truly ‘plug and play’. Pull it out, fire it up, then fly 700NM non-stop to your next airshow with luggage.

Sbach 300 Sport Flying: The in-depth design process has resulted in a seat design that makes the XA both comfortable and enjoyable whilst ferrying cross country.
The first machine to be fully crash tested with seat and belt design that ensures occupants remain restrained during unexpected adventures.
With cruise speeds up to 210 knots Sbach 300 can claim the fastest certified aircraft speeds and ensures you get to your destination quickly.
Baggage bay certified to carry 10kg (22 lbs) and stress tested to 100kg (220 lbs)
Gentle looping & rolling along the way is not forbidden and ensures you arrive with a smile.
Takeoff and landings are completely conventional with conversion being straightforward for any pilot currently on tailwheels.

XtremeAir Sbach 342
XtremeAir Sbach 342 (XA42) and Sbach 300

Sbach 300 Design Feature
• New airfoil section and wing layout designed for high speed cruising flight whilst retaining excellent aerobatic qualities
• Big control surfaces to provide a high rate of roll at slow speed whilst providing startling rates at high speed
• Aileron airfoil section and hinge line designed to provide minimum pilot effort, strong centering feedback and maximum efficiency at slow speed, hestitation rolls can be flown and stopped cleanly as slow as 40 kts
• Adjustable aerofoil-shaped carbonfibre spades
• Double acting elevator servo/ trim tab, with electric pitch trim control
• A canopy that is strong enough to be left open during taxiing and cheap enough to replace should you forget to lock it!
• Instrument panel swings open with canopy for easy entry and access to systems
• Cowling optimised to provide low frontal area, best propeller efficiency and low cooling drag
• 2 small oil coolers with diverging ducts for minimum weight and optimum efficiency
• Flush screws with embedded metal washers.


The roomy cockpit of the Sbach 300 (XA41) will accommodate pilot height ranges of 1.5m (4.9 ft) up to 2.05m (6.7 ft).

The instrument panel fixed to the canopy swings out of the way when the canopy is opened, providing easy entry and egress for the pilot and for maintenance.

Seat ergonomics are optimized for aerobatics, providing lateral torso stabilisation for accurate and aggressive roll inputs right up to full deflection at VNE.

Due to the wide cockpit and interior design the control stick does not interfere with the pilots legs.

7 point Hooker harness with Gel pads keep you perfectly fixed in the seat.

You are surrounded by modern design safety features with details going right down to minor items such as the shock absorbing cushions that you sit on. This detail also greatly reduces fatigue during aerobatics or cross country flights.

Parallel-motion rudder pedals installed in the rear cockpit allow adjustments over a range of 25 cm (10"). This system design also allows the pilot to use the full force of his legs during quick and precise rudder inputs resulting in less pilot fatigue.


So many firsts with this machine.
The first certified aerobatic airplane to have had the complete airframe structure fatigue tested providing an initial life of 6.000 hrs with further extension anticipated.  Due to the unmatched qualities of the carbon fibre construction upon reaching the life limit further life extensions are possible after inspection.

First aerobatic aircraft ever to be crash tested with fully rigged crash test dummies in the cockpit. Of course we passed first time with absolutely no deformation of the cockpit structure under CS23 conditions.

First ever aerobatic aircraft to have the fuel tank in a separately vented compartment away from the cockpit.
Heat shield between the firewall and the engine providing resistance to a temperature of 1200°C for 15 minutes.

Double carbon fibre main spar, tested to 18 G
Full span ailerons, 5 hinge points each side are integral parts of the wing ribs ensuring both rigidity and strength, Integral ferry fuel wing tanks holding 105 Litres in each side.

Carbon / honeycomb monocoque with rib carbon rib stations and longerons.
Crash testing demonstrated no structural damage with impacts up to 26G!

Landing gear
Spring steel gear legs, drop tested to withstand a landing with up to a 1,800 ft/min rate of descent
Main landing gear attachments integrated into the engine mount for minimum weight, complexity and ease of maintenance/replacement.

Unique single pin system allows removal of rudder and elevator in literally 2 minutes

All carbon fibre push/pull control rods throughout.
All steel parts are manufactured using 1.7734 steel parts are zinc anodised for corrosion protection

Lycoming AEIO 580 B1A, 315 hp (230 kw)
Propeller MTV 9, 3-blade, 203 cm
Exhausts each side are 3 in 1 units

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