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KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700

KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700 - Image 3

KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700 - Image 4

KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700 - Image 5

KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700 - Image 6

KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700

Name: KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700 - Flying Tech
Brand: KST
SKU: SERVO-KSTBLS805X
Price: 69.99 GBP
Availability: InStock

£69.99 Inc. VAT

High-speed, brushless HV tail servo with 760μs/560Hz input—perfect for 550–700 size helis needing fast, precise tail control.

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SKU: SERVO-KSTBLS805X Categories: Servos, Planes & Wings, Plane Electronics, Spare Parts Tags: HV Servo, Servo, Tail Servo

Description

Standard Size Servo For 550-700 Class Helicopter Tail

The KST BLS805X HV Tail Servo is engineered for high-speed, high-precision performance, making it an ideal choice for 3D helicopter pilots flying models in the 550 to 700 class. Built around a high-voltage brushless motor, it delivers lightning-fast response with a pulse speed of just 0.039 sec/60° at 8.4V, giving you sharp, confident tail authority even in the most aggressive maneuvers.

Housed in a robust CNC-machined aluminium case, and equipped with durable steel gears and dual ball bearings, the BLS805X is designed for long-term reliability and resistance to heat and vibration. It runs on 760μs / 560Hz, so be sure your gyro system supports this narrow-pulse, high-frequency specification.

Key Features

Blazing-fast speed: 0.039 sec/60° @ 8.4V
Solid torque: Up to 7.5 kg·cm
High-voltage compatible: 6.0V – 8.4V
Optimized for tail use: 760μs / 560Hz pulse input
All-metal housing: CNC aluminum for durability and cooling
Brushless motor: Smooth, efficient operation with longer life
Perfect for: 550–700 size helicopters

Specification

Item: BLS805X HV Brushless Tail Servo
Operating Voltage: DC6.0V-8.4V
Dimension: 40.5mm*20mm*38mm±0.2mm
Torque: 5.5Kgf.cm@6.0V, 6.5Kgf.cm@7 .4V, 7. 5Kgf.cm@8.4V
Speed: 0.048sec/60° @6.0V, 0.042sec/60°@7.4V, 0.039sec/60°@8.4V
Temperature Range: -10℃……+65℃
Weight: 70g±10%
Working Frequency: 760μs/560Hz
Case Material: Aluminium Alloy
Motor Type: Brushless DC Motor
Position Sensor: Potentiometer
Ball Bearing: 2BB

Included:

1 * BLS805X HV Servo
5 * Plastic Servo Horn
1 * Servo Horn Screw
4 * Rubber Grommet
4 * Eyelet
4 * Mounting Screw

Downloads

Data Sheet (pdf, 723KB)

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Shipping

SHIPPING & DELIVERY

We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the size/weight and shipment location. We process orders Monday to Friday and pride ourselves on our quick turnaround of orders - most UK orders will arrive the next day.

We are partnered with several delivery companies including Royal Mail, DHL, UPS and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us.

A confirmation email will be sent when your order has been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.

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Shipping to the UK

Order before 4PM for same day dispatch with Royal Mail, 2PM for next day delivery with DHL and 1PM for next day delivery with APC.
We offer FREE Shipping on UK orders over £99, weighing less than 1kg.
The courier options deliver Monday to Friday, Royal Mail delivers to residential addresses on Monday to Saturday.

For small low value orders our cheapest delivery service is Royal Mail First Class. For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options.

International Postage

Order before 4PM for same day dispatch with Royal Mail.
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DHL Express offers NEXT DAY delivery to most European destinations and a very fast delivery for countries further afield, generally 2-3 days.

Orders shipped outside the EU may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.

KST BLS805X HV Brushless Digital Tail Servo 7.5Kgf.cm 0.039sec for Heli 550-700