HSKRC 3 Inch 140mm Carbon Fiber Racing Kit

The HSKRC 3 Inch 140mm Carbon Fiber Racing Kit is a high-performance FPV racing drone frame designed for competitive pilots and hobbyists seeking extreme speed and agility. This ultra-lightweight frame utilizes premium carbon fiber construction to achieve optimal strength-to-weight ratios essential for professional drone racing applications. The kit addresses the critical need for durable, responsive airframes that can withstand high-G maneuvers and impact forces while maintaining sub-200-gram configurations for regulatory compliance.

Product Overview

The HSKRC 3 Inch 140mm frame represents the pinnacle of racing drone engineering, featuring a compact wheelbase optimized for tight gate navigation and rapid directional changes. The carbon fiber composite construction employs unidirectional weave patterns that distribute stress loads efficiently across the airframe, reducing vibration transmission to camera systems and flight controllers. This 140mm diagonal wheelbase configuration delivers exceptional responsiveness while maintaining structural integrity during sustained 100+ mph flight speeds and aggressive acrobatic maneuvers typical of FPV racing circuits.

The frame geometry incorporates advanced aerodynamic principles with streamlined arm profiles that minimize drag coefficients and optimize propeller efficiency. The integrated mounting points are precision-engineered to accommodate standard 20x20mm flight controller stacks, ESC arrays, and 1104-1106 brushless motor configurations. Carbon fiber's superior rigidity-to-mass ratio ensures minimal frame flex during rapid throttle transitions, critical for maintaining gyroscopic stability and consistent motor response in competitive racing environments where millisecond-level timing differences determine race outcomes.

Key Specifications

Specification	Details
Product Type	FPV Racing Drone Frame Kit
Brand	HSKRC
Frame Size	3 Inch 140mm Wheelbase
Material Composition	Premium Carbon Fiber Composite
Frame Weight	Approximately 25-28 grams
Motor Size Compatibility	1104-1106 Brushless Motors
Flight Controller Compatibility	20x20mm Standard Stack
Arm Thickness	3.5mm Carbon Fiber
Maximum Takeoff Weight	Under 250 grams with battery
Propeller Size	3 Inch Racing Propellers
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• Premium Carbon Fiber Construction: Unidirectional weave pattern provides exceptional rigidity with minimal weight, reducing frame flex during high-G racing maneuvers and improving overall flight stability
• Optimized 140mm Wheelbase: Compact geometry enables rapid gate threading and aggressive cornering in FPV racing circuits while maintaining responsive control authority
• 20x20mm Stack Mounting: Universal compatibility with standard flight controller and ESC configurations allows flexible component selection for competitive racing builds
• Precision-Engineered Arms: Streamlined 3.5mm carbon fiber arms minimize aerodynamic drag while maintaining structural integrity for sustained high-speed flight operations
• Tool-Free Assembly Design: Quick-disconnect arm connections enable rapid frame repairs and component swaps between races without specialized equipment
• Integrated Cable Management: Strategically positioned cable routing channels reduce vibration coupling to sensitive electronics and improve overall system responsiveness

Applications and Use Cases

• Professional FPV Racing: Competition-grade frame designed for MultiGP racing circuits and international drone racing championships requiring maximum agility and structural durability
• Freestyle Flying: Lightweight carbon construction supports sustained inverted flight, barrel rolls, and complex acrobatic sequences with minimal frame stress and vibration
• Cinematic FPV: Compact 140mm form factor enables smooth flight through tight indoor spaces and outdoor environments while maintaining gimbal-compatible weight distribution
• Training and Development: Ideal platform for intermediate and advanced pilots transitioning to competitive racing with forgiving handling characteristics and modular repair capability
• Aerial Cinematography: Sub-250-gram configuration with stable flight characteristics suitable for regulatory-compliant commercial applications in photography and videography

How to Use

Begin assembly by verifying all carbon fiber components for manufacturing defects or damage before proceeding. Install the flight controller and ESC stack onto the 20x20mm mounting plate using vibration-damping standoffs to minimize noise coupling to gyroscopic sensors. Secure the four arms using the provided quick-disconnect connectors, ensuring proper alignment with the central fuselage to maintain symmetrical weight distribution and gyroscopic balance. Mount your selected 1104-1106 brushless motors onto each arm with precision, confirming motor shaft alignment with propeller mounting holes.

Connect the ESC signal wires to the flight controller's motor output pins in correct sequence, typically following the Betaflight motor numbering convention for proper thrust vectoring. Install your 3-inch racing propellers with correct rotation direction marked on each unit, ensuring secure fastening to prevent in-flight separation. Calibrate your flight controller's gyroscope and accelerometer using appropriate firmware calibration routines, then perform ground-level control surface checks to verify motor response and servo authority. Install your LiPo battery in the central battery bay using secure velcro or battery straps, maintaining weight balance within 5 grams of centerline. Conduct a thorough pre-flight systems check including radio link verification, throttle response testing, and visual inspection of all structural components before your first flight.

Frequently Asked Questions

What is the maximum recommended takeoff weight for this frame?

The HSKRC 3 Inch 140mm frame maintains optimal flight characteristics at total system weights between 180-250 grams including battery, electronics, and camera. Exceeding 250 grams compromises regulatory compliance in most jurisdictions and reduces flight responsiveness. We recommend targeting 200-220 grams as the optimal weight range for competitive racing performance with maximum agility and acceleration.

Is this frame suitable for beginners or only experienced pilots?

While the 140mm wheelbase is optimized for racing, this frame suits intermediate to advanced pilots with prior multirotor experience. Beginners should start with larger 5-inch frames offering greater stability and forgiving flight characteristics. However, if you have 50+ hours of flight time on standard quadcopters, this racing frame provides an excellent progression platform with manageable learning curves for competitive flying techniques.

What carbon fiber thickness variations are available in this kit?

The HSKRC 3 Inch frame features consistent 3.5mm arm thickness throughout the structure, providing balanced strength-to-weight optimization. The central fuselage utilizes 4mm carbon fiber plating for enhanced durability at the main component mounting area. This specification balances crash resilience with minimal weight penalty, ideal for both racing and freestyle applications requiring reliable performance across extended flight sessions.

Can I upgrade or repair individual components if damaged?

Yes, the modular design allows replacement of individual arms, fuselage plates, and mounting components without requiring complete frame replacement. HSKRC provides separately available replacement parts including spare arms, center plates, and camera mounts. This modularity significantly reduces repair costs and downtime between races, making this frame economical for intensive racing operations.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy HSKRC 3 Inch 140mm Carbon Fiber Racing Kit Online in India

Purchase the HSKRC 3 Inch 140mm Carbon Fiber Racing Kit online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on HSKRC 3 Inch 140mm Carbon Fiber Racing Kit with fast shipping and expert support.

Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.