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KDS 900 Digital Gyro
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KDS 900 Digital Gyro

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$99.00 $65.00
(You save $34.00)
SKU:
KDS900
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for all RC helicopter

 

 

Introduction
KDS900 is designed specially for RC helicopter. It is a high quality and precision gyro. The gyro adopts AVCS, high performance SMM sensor and controller. It features excellent location capiblity, and stable yaw rate which can avoid influence from external variables, such as rotation speed of rotor head on helicopter, flight speed and crosswind. With these advantages, you can greatly enjoy your flight with KDS900 gyro.
The performance of gyro is closely related to servos. The quicker the respone of servos, the better the sensitivity and performance of gyro. It is recommended to use Futaba S9253, S9254, S9257, S9256 or BLS251 to match KDS900 gyro.

AVCS Gyro
Conventional gyros send control signals to the rudder only when the tail of the helicopter moves. When the tail stops moving, the control signal from the gyro becomes zero. Conversely, the AVCS gyro continues to send control signals to the servo even when the tail of the helicopter stops moving. The following sequentially describes the conventional gyro and the AVCS gyro.

Operation of Conventional Gyro

Basic operation is described by considering the case when the helicopter is hovering under crosswind conditions. With a conventional gyro, when the helicopter encounters a crosswind, the force of the crosswind causes the tail of the helicopter to drift. When the tail stops drifting, the control signal from the gyro becomes zero. If the crosswind continues to cause the tail to drift in this state, the ‘stop’ operation is repeated until the tail faces downwind. This is called the ‘weathervane’ effect.

Operation of AVCS Gyro
Conversely, with an AVCS gyro, when the helicopter encounters a cross-wind and the tail drifts, a control signal from the gyro stops the drift. At the same time, the gyro computes the drift angle and constantly outputs a control signal that resists the crosswind. Therefore, drifting of the tail can be stopped even if the crosswind continues to effect the helicopter. In other words, the gyro itself automatically corrects (auto trim) changes in helicopter tail trim by crosswind. Considering operation of an AVCS gyro, when the tail of the helicopter rotates, the servo also rotates in accordance with the angle of rotation of the tail. When the tail stops rotating, the servo judges that it has stopped in that position. This the auto trim function.

 

Features

AVCS System
since rudder drifting caused by wind, or other meteorological factors and different helicopter attitudes will by eliminated automatically, the perfect to tail (rudder) will become more easier, making it operation to 3D Flight.

 

SMM Gyro Sensor

Use of newly developed extremely low drift SMM (Silicon Micro Machine) gyro sensor virtually eliminates rudder trim changes during flight.

 

Support Boardband and Narrowband Digital Servo

You can configure 1520uS servos and 760uS servos via setup card.

 

Remote Gain Function and Mode Switching Function

Remote gain function allows sensitivity switching from transmitter and mode switching function allows AVCS / normal gyro mode switching.

 

Integrated, Compact and Lightweight

Compact size (23 x 23 x 10mm) and light weight (9g) realized by high density mounting technology.

 

Gyro Specifications
Control System: Digital Proportional Integration

Sensor: ADI SMM high functions angular velocity sensor

Working Voltage: 4 – 6V DC
Working Current: <55mA

Working Temperature: -10 to + 45 Degree

Gyro Dimension (Length x Width x Height): 23 x 23 x 10mm

Net Weight: 9g

 


Program Card Specification

Program Card Dimension (Length x Width x Height): 60 x 33 x 15mm

Net Weight: 26g

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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Questions & Phone Orders

3/103 Cryers Road
(Best Entrance from Transport Place)
East Tamaki, 2013, Auckland
Call us: 09-265-1041

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