Protos 380 Kit (Kit Only Version, no mini Brain2) - [MSH41510, MSH41511]

Protos 380 Kit

*miniBrain2 not included


Note that this item will be sent with signature required. If you wish to waive the signature requirement, please indicate as such in the notes at checkout.

The Protos 380 takes the legendary Mini Protos design DNA forward to incredible new levels of flight performance, durability, and technology. MSH has leveraged over a decade of airframe design experience and customer feedback to create something truly amazing.  Designed from the ground up to break performance barriers and deliver a new experience not yet seen in this size helicopter.

The Protos 380 is designed with lightweight in mind, while delivering an extremely strong and robust airframe that can take abuse flight after flight.  The design is very low parts count, and extremely fast to repair, keeping you in the air.  The use of mixed materials including carbon fiber, aluminum, composite plastics to optimize every aspect of the design.  

The future of the 380mm helicopter has arrived, and with it a new legend is born.

Twin Belt Transmission

The Protos 380 implements a robust twin belt transmission, with auto tail belt tensioner.  This translates into thousands of maintenance-free flights and whisper quiet transmission.  With the lack of gear mesh, the Protos 380 can handle huge power, while delivering it with no transmission noise.  A robust one way bearing assembly is located in the main pulley assembly.  The low drag setup allows great autorotation performance in a small package.

 Gorilla Landing Gear

A broken set of landing gear can ruin a day at the field. MSH is famous for their mastery of composite plastics.  Gorilla gear takes unbelievable abuse landing after landing.  Protecting the airframe and blades.  Flying is all about the fun.  And gorilla gear gives you the confidence to get low. Learn autos.  And master the skid bump.

Auto Belt Tensioner

MSH is a big fan of "set it and forget it".  The auto belt tensioner pushes the Protos 380 tail performance to all new levels, while allowing the pilot to just forget about checking and setting the tension flight after flight, despite changing environmental conditions.  It also allows the tension to be reduce significantly improving auto-rotation performance.

 Magnetic canopy mounting system:

Carrying the Protos Max heritage forward, the Protos 380 has MSH's unique canopy mounting system.  The canopy is installed and removed in a single motion.  The end result - more flying and no fussing around to mount the canopy flight after flight.  The mounting system utilizes powerful magnets with cupped mounts.


 Extra large ESC compartment:

One of the design goals of the Protos 380 is setup flexibility.  The large ESC compartment fits up to a 100A ESC. 

 Robust tail system for the ultimate performance:

Replacing belts should be easy.  So the Protos 380 implements an aluminum single sided tail box to make field replacements fast and simple. 

The tail implements thrusted tail grips design for precision tail control.  The Protos 380 implements a high tail ratio (4.3) with a low profile boom that's capable of the most demanding maneuvers. An optional speed up pulley offers a 4.47 ratio for extreme tail performance even at lower headspeeds.  The tail is capable of handling extreme overspeeds with no resonance, which ups the fun factor.

The 17mm boom is designed such that no supports are needed, reducing weight and optimizing tail performance. 


 Gear ratio options for every pilot:

Pinions are offered from 14T to 25T.  Supporting both 3.5mm and 5mm motor shafts.  Build your 380 as an ultralight low headspeed machine, or set it up for the ultimate 3D sessions.  The choice is yours. The ultra light disk loading makes an incredibly versatile platform .

Integrated air ventilation inlets for the ESC and motor:

 The Protos 380 canopy includes integrate holes to optimize cooling on the ESC and motor.  This increases reliability and allows back to back flying in harsh climates. 



MSH Power Bus (optional):

The MSH power bus great simplifies wiring and improves reliability of the model.  Throttle, RPM, BEC output, telemetry, and elevator servo are integrated into the power bus and routed back to the flybarless system. 

DIMENSIONS   Frame Support frame made in carbon fiber 2.5mm and aluminium.
Bottom frame made in one-piece high quality thermoplastic material System trasmission
(motor - main rotor - tail rotor) Single belt HTD3mm Usable main blades 700mm (with short boom)
fino a 800mm (with long boom) Battery usable LiPo from 10s to 14s 4000/5500mAh Battery compartment dimensions 70mmx60mmx360mm Suggested battery Lipo 12s 5000mAh Main rotor diameter 1577mm (with 700mm blades)
1777mm (with 800mm blades) Tail rotor diameter 286mm (with 105mm tail blades) Total lenght without blades 1372mm Total lenght with blades 1758mm (with 700mm blades)
1858mm (with 800mm blades) Main shaft diameter 12mm totally hollow Tail shaft diameter 6mm Fully height 365mm Swashplate servos 3x standard servos
(to use the servo horn present inside the kit is necessary that servo shaft is like Futaba, MKS or Savox)
It's available as upgrade also JR horn Tail servo 1x standard servo Maximum dimension of main blade root 14mm M5 screw Maximum dimension of tail blade root 5mm M3 screw Teeth pinion 20T 21T (included inside the kit) 22T (upgrade) Main pulley teeth 200T Tail pulley teeth 42T Tail boom diameter 27mm Spindle diameter 10mm Main head and tail box construction material Al 7075 (Ergal) Main shaft construction material Steel 1000 N/mm^2 (Steeltech AG - ETG 100) - See more at:
Frame Support frame made in xxmm carbon fiber, composite plastics and aluminum.
System transmission Twin belt drive system. 9mm gates main belt, 4mm tail belt
Main blades

385mm maximum

Battery Options LiPo from 3s to 6s.  Typical setup is 1300mah to 1800mah 6s (2200mah 6s max).
Battery compartment dimensions 24mmx33mmx100mm
Suggested battery Lipo 6s 1800mAh
Main rotor diameter 864mm (with 380mm blades)
Tail rotor diameter 181mm (with 67mm tail blades)
Total length without blades 800mm
Total length with blades 1003mm (with 380mm blades)
Main shaft diameter 6mm
Tail shaft diameter 5mm
Height 235mm
Swashplate servos 3x micro servos
Tail servo 1x micro or mini servo
Teeth pinion 21T included [3.5mm hole: 14T, 15T, 16T, 17T, 18T, 19T, 20T (3.5mm); 5mm hole: 20T (5mm), 21T, 22T, 23T optional]
Main pulley teeth 120T
Tail ratio 4.27:1
Tail boom diameter 17mm
Spindle diameter 5mm


Black tail blades and white Gorilla gear included

Needed for assembly:

  • 3micro size swash servos, 1 micro or mini size tail servo
  • Flybarless system
  • Main rotor blades (385mm max)
  • Transmitter/Receiver
  • Motor (2820-890kV, 2618-1360kV for 6s)
  • 6s LiPo (1300mah-1800mah)
  • ESC (60A typical)

Manual for download

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