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Velos Rotors 880 - Pre order

Quick Overview

Velos 880

Availability: Out of stock

Details

Velos 880 – Twice as powerful

 

Please call us on (02) 97096999 for pre order information. 

 

850mm main and 137mm tail blades are included in the kit.

150 Pages color printed manual is included in the kit

 

A few words about Velos 880

 

Velos 880 is a model helicopter that has been in R&D for the last three years. Every part of this model has been designed from the ground up with main goals: Simplicity and performance. We have not compromised either in building this helicopter. Its aerodynamic and streamlined shape exploits the laws of physics in order to minimize drag and allow for superior top speed.

 

The center of gravity on the vertical axis is just 13 to 14 cm under the main rotor which gives Velos 880 a unique responsiveness. The skids are angled in two axes allowing minimal drag when the helicopter is pointing forward. Additionally, their wide span make them acting like shock absorbers during landings and take offs. Tail boom is made of carbon fiber with a 40mm outside diameter for an unusually strong and lightweight construction.

 

The mechanics of Velos are a key differentiator compared to any other product in the market. The heart of Velos is a very sophisticated gearbox that combines the power from two high performance brushless motors and transfers the total power to the main and tail rotors while maintaining the highest possible efficiency. There is a smart fault isolation system that is activated in case of a component failure (motor, belt, esc, battery pack or pinion gear) during a flight. The gearbox can automatically disengage the stopped motor without introducing any drag to the rest of the transmission. This allows the helicopter to continue its flight normally and prevents it from crashing, resulting in superior reliability. In fact, the model is able to make a normal sport flight with only one motor in operation.

The above configuration allows power levels that in other cases will not be possible due to excessive weight thus breaking the barrier of 800 sizes for 3D flight. Another important benefit from this configuration is that you do not have to spend a fortune buying the latest high-end 800 size motors and escs together with expensive 7s LiPo batteries.

 

In fact you can use two budget 700 or even 600 size motors and escs which costs much less than the latest 800 systems yet their total power output easily outperforms the above.

 

Velos 880 is using a twin, double stage gearbox.The first stage is using belts to transfer the power from the motors and it is using solid motor mounts. There is no need to push or pull the motors in order to apply tension to the belts; instead, there is a double rail tension system, which makes the removal and adjustment of the belts a 30 second process by simply tightening just one nut for each belt. The second stage of the gearbox is using gears and has been based on a special geometry configuration to allow the transfer of outstanding amounts of power to the main rotor with the smallest possible gear size. In addition, the whole mechanics can be easily removed for maintenance by removing just four screws. The power to the tail rotor is been transmitted through a belt and two pulleys. The large diameter of the boom allowed us to eliminate any idler pulleys and tensioners for the tail belt. That way the power transmission to the tail rotor is simple and effective.

 

The rotor head of Velos 880 has been designed from the ground up. At the core of the flybarless head there are two independent spindle shafts that enable different flapping angles in each blade (in proportion to the momentary forces that are acting on them). This design achieves a wider RPM operating range.

 

General:

First 880 3D RC helicopter in the world .

Super aerodynamic streamlined design.

190cm Main rotor diameter

36cm Tail rotor diameter

First 3D helicopter that combines the power of two main electric motors for power levels of more than 22000 watts.

First RC 3D helicopter that can keep flying even if a battery, motor, esc and or belt fail in flight.

One piece cnc tail case

 

Frame:

Mechanics can be easily removed from the frame by removing 4 screws.

The extra high position of the batteries transfers the center of gravity so close to main rotor that makes this full blown 880 9kg heli roll and flip at unbelievable speeds for its size.

Super tough 40mm diameter tail boom allows the direct driving of the tail rotor while eliminating belt tensioners.

Boom can be easily removed for transporting the heli in less than one min.

Unique design of the two main skids in order to minimize drag and help aerodynamics.

Skids are actually acting like shock absorbers and contribute to a smooth and safe landing.

Red anodized skid reinforcements with laser etched logo.

 

Head:

Unique two-blade head design that utilizes two spindles for independent blade movement for unmatched flight performance.

Wide rpm operation from 1200rpm up to 2000rpm.

15mm hardened hollow main shaft mounted in 32mm angular bearings

 

Gearbox:

Two high quality 32mm angled bearings used in main shaft for very long maintenance intervals.

Very effective for axial loads like the normal bearings and vertical loads like thrust bearings.

Belts replacement in less than 30 seconds. Solid and fixed motor mount eliminating the pulling of the motor for applying tension to the transmission belts.

Only 4 screws to take the whole gearbox out of the frame.

Smart disengaging system, isolates one part of the transmission in case of a motor, esc, belt or battery failure during flight.

 

Specs:

Length: 1566mm

Main rotor diameter: 1900mm

Height: 385mm

Main blade length: 850mm (*Blades included)

Width: 295mm

Tail rotor diameter: 360mm

Airframe weight: Takeoff weight: ±9,5kg (5000mah packs)

Tail blade length: 137mm (*Tail blades included)

Main gear ratio: 1÷10.33 (variable motor pulley options.)

Tail gear ratio: 1÷5.60

 

Additional equipment needed to complete:

1x Flybarless unit with 4 servo swash plate support

1x Full range receiver 7ch or more

1x RX battery or BEC

4x Cyclic servos

1x Rudder servo

2x 700 class heli motors

2x HV ESCs 120Amp or more

4x 6s LiPo batteries( 4000- 5000mah)

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