
UAV Propulsion, Powertrain & Components
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3W-170Xi B2 Twin-Cylinder Gasoline Engine — available for export to Tonga. Indicative price T$15,500 (TOP, ex-works). Formal quote, lead time and end-user documentation on WhatsApp.
3W-170Xi B2 is a 170cc twin-cylinder gasoline RC aircraft engine with 18.1HP output, 1,100–8,500 RPM range and 6.0–8.4V ignition.
Base price
T$15,500
≈ US$6,500
Indicative ex-works price converted from INR (rates 2026-09-16). Final quote issued in TOP on WhatsApp/email.
Orders are confirmed by our sales desk on WhatsApp with a quote in TOP.
Get Quote on WhatsAppRequest Quote by EmailSystem Tags
Mission configurations
Select your operational configuration. Pricing may vary — request a formal quote for deployment quantities.
Configuration matrix
Side-by-side specifications — click a column to select
| Parameter | ||||||
|---|---|---|---|---|---|---|
| Unit Price (TOP, ex-works) | T$15,500 | T$15,500 | T$15,500 | T$15,500 | T$15,500 | T$15,500 |
| Stock | 10 units | 10 units | 10 units | 10 units | 10 units | 10 units |
| SKU | FSP-3W-170XI-B2-TRACTOR | FSP-3W-170XI-B2-PUSHER | FSP-3W-170XI-B2-INSTALL-SUPPORT | FSP-3W-170XI-B2-PROP-MATCH | FSP-3W-170XI-B2-3M-AEROBATICS | FSP-3W-170XI-B2-UAV-PROTOTYPE |
Intelligence Brief
The 3W-170Xi B2 is a premium 170cc twin-cylinder gasoline engine designed for 3-meter aerobatic aircraft, large RC airplanes, towing models, scale aircraft, sport aircraft and professional aeromodelling projects. Built for high-performance flight applications, the 3W-170Xi B2 delivers 18.1HP / 13.30kW output, smooth running behavior and dependable power for demanding large-airframe builds.
APPLICATIONS: 3-meter aerobatic aircraft, giant-scale RC airplane builds, RC towing aircraft, large sport aircraft, scale model aircraft, aerobatic aircraft, petrol-powered model aviation, tractor-engine RC aircraft setups, pusher-engine RC aircraft setups, RC aircraft engine replacement, professional aeromodelling workshops, engineering college aircraft labs, fixed-wing UAV prototype power-system testing, RC flying club maintenance, high-performance model-aircraft power-system integration.
Q: What is the 3W-170Xi B2? A: The 3W-170Xi B2 is a 170cc twin-cylinder gasoline RC aircraft engine designed for 3-meter aerobatic aircraft, towing aircraft, large sport models, scale aircraft and professional aeromodelling applications.
Q: What is the price of the 3W-170Xi B2? A: The listed import price is T$15,500 for the 3W-170Xi B2 Standard Tractor Package. Final pricing may vary if pusher configuration, installation support, propeller matching, workshop support or UAV prototype integration assistance is added.
Q: What ignition system does it use? A: The 3W-170Xi B2 uses microprocessor-controlled ignition with a programmed ignition curve matched to the engine for good running behavior across the RPM range.
Q: What aircraft is the 3W-170Xi B2 suitable for? A: It is suitable for 3-meter aerobatic aircraft, large sport aircraft, towing aircraft and scale models that are designed for a 170cc-class twin-cylinder gasoline engine.
Q: Is this engine suitable for beginners? A: It is best suited for experienced RC pilots or beginners working under expert supervision. Large twin-cylinder gasoline engines require careful installation, fuel handling, ignition setup, tuning and propeller safety.
Q: Can it be used in UAV prototype projects? A: Yes, it may be used in petrol-powered fixed-wing UAV prototype projects if the airframe, vibration isolation, fuel system, cooling, propeller, ignition and safety procedures are professionally engineered.
Q: What propeller should be used? A: Propeller selection should be matched to the airframe, engine version, towing load, RPM target, altitude and flight style. Use manufacturer guidance or professional propeller matching support before operation.
Q: What else is required for installation? A: Typical required items include suitable propeller, fuel tank, fuel tubing, fuel filter, ignition battery, switch harness, throttle linkage, engine mount, cooling layout, starter equipment, field tools and correct gasoline/oil mix.
Q: What maintenance is required? A: Maintenance should include checking propeller bolts, engine mounting bolts, exhaust hardware, spark plugs, ignition wiring, fuel lines, fuel filter, throttle linkage, carburetor tuning and general engine cleanliness.
Q: What safety precautions are important? A: Operators should follow propeller safety, fuel safety, fire safety, controlled starting procedure, secure mounting, safe tuning practice and field operation rules. Never stand in front of or in line with the propeller while the engine is running.
Q: Why choose a 170cc twin-cylinder RC gasoline engine? A: A 170cc twin-cylinder RC gasoline engine offers high power, smooth running, strong torque and reliable performance for demanding large aircraft applications.
Q: What warranty is included? A: Warranty support generally covers manufacturing defects under approved use and normal operating conditions. Damage from incorrect fuel mix, poor tuning, overheating, propeller strike, crash impact, vibration damage, dirt ingestion, water exposure or unauthorized modification may not be covered.
Technical Data Sheet
54 parameters across 2 categories
Engine Type
Large model-aircraft power system
Model
Premium 3W Modellmotoren engine platform
Displacement
Giant-scale gasoline engine class
Output Power
Official power reference
RPM Range
Operating speed range
Engine Configuration
High-performance model-aircraft architecture
Available Versions
Airframe setup dependent
Bore Diameter
Cylinder bore specification
Stroke
Engine stroke specification
Weight Including Ignition
Official weight reference
Crankshaft
Quiet running and durability support
Installation Class
Professional aircraft installation
Engine Application Class
Airframe dependent
Aerobatics Use
Official positioning reference
Towing Use
Airframe and propeller dependent
Smooth Running
Correct installation required
Weight-to-Performance Ratio
Build dependent
Reliability Positioning
Maintenance dependent
Performance Note
Real-world results vary
Ignition System
Programmed ignition curve for stable running
Ignition Voltage
Official ignition voltage range
LiPo Reference
Check ignition-module requirements
Ignition Battery
Confirm before order
Electrical Setup
Professional installation recommended
Safety Note
Regulator may be required depending on setup
Propeller Selection
Professional selection required
Common 2-Blade Propeller Reference
Manual propeller reference
Common 3-Blade Propeller Reference
Manual propeller reference
Tractor Version Use
SKU reference 10.002.220
Pusher Version Use
SKU reference 10.002.221
Propeller Requirement
Confirm before order
Propeller Safety
Operator responsibility
RPM Matching
Follow engine guidance
Package Includes
Main gasoline power system
Package Reference
Confirm final supplied accessories
Available Configuration
3W SKU 10.002.220
Required Separately
Confirm final package contents
Documentation
Essential for correct operation
Package Note
Verify before purchase
Construction
Professional aeromodelling application
Crankshaft Support
Quiet running and durability support
Ignition Control
Stable running across RPM range
Use Class
Experienced user recommended
Compatibility
Airframe dependent
Setup Requirement
Professional installation recommended
Warranty
Manufacturing defects under approved use and normal operating conditions
Brand
Premium RC gasoline aircraft engine
Supplier / Integration Support
India support available
Complete specification index
FlySpark exports 3W-170Xi B2 Twin-Cylinder Gasoline Engine to Tonga from our facility in Gandhinagar, India. Systems ship on the India → Asia-Pacific air freight lane with a typical transit time of 5–10 days once documentation clears. Quotes are issued in TOP (EXW Gandhinagar; DAP/CIF on request), and every shipment includes a commercial invoice, packing list and certificate of origin.
RF and counter-UAS equipment is supplied to authorized end users only. Depending on Tonga regulations an import permit and an end-user certificate (EUC) may be required — our export desk prepares the paperwork with you before dispatch.
Global export · local pricing
FlySpark exports this system worldwide with end-user certification, dual-use classification, and destination-specific compliance. Open your country edition for indicative local pricing; the binding quote is issued on WhatsApp in your currency.
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4 in 1 ESC price / 4-in-1 ESC for drone price is quoted ex-works for the FlySpark 60A BLHeli_S board. WhatsApp quantity — optional F4 flight controller stack quote.
4 in 1 esc (also written 4-in-1 ESC) is four brushless ESC channels on one board. Buy the FlySpark 60A BLHeli_S 4 in 1 ESC for drone / FPV builds.
A 60A ESC (60 amp ESC) is a brushless speed controller rated ~60 amps. Buy the FlySpark 60A 4 in 1 ESC (BLHeli_S) for FPV — WhatsApp for 4 in 1 ESC price.
A 4 in 1 ESC for drone combines four brushless ESC channels on one board. Buy the FlySpark 60A / 60 amp 4 in 1 ESC (BLHeli_S) and pair it with the F4 flight controller.
“4 in one ESC” is the same as 4 in 1 ESC — four ESC channels on one board. Buy the FlySpark 60A BLHeli_S unit; price is quoted ex-works for export.
Yes — buy the F4 flight controller and 60A 4 in 1 ESC together (or as a stack SKU). Most builders prefer separate boards for serviceability; both are quoted for export.
Yes. The 3W-170Xi B2 Twin-Cylinder Gasoline Engine ships to defense, security, and critical-infrastructure buyers in 50+ countries with full export documentation — end-user certification, dual-use classification, and destination-specific compliance handled before dispatch.
The 3W-170Xi B2 Twin-Cylinder Gasoline Engine is offered in 6 configurations so you can match range, payload, and integration requirements. Custom builds are available for volume orders.
Yes. FlySpark ships to Tonga on the India → Asia-Pacific air freight lane; transit is typically 5–10 days. Counter-UAS and RF items require an authorized end user and may need an import permit — we handle the export documentation with you.
The indicative price is T$15,500 (TOP, ex-works India, converted from INR on 2026-09-16). Freight, insurance and Tonga import duties are quoted separately; the formal offer is issued in TOP on WhatsApp or email.
Standard configurations ship in 1–2 weeks after order confirmation; air freight to Tonga then takes 5–10 days. Custom builds and larger quantities are scheduled at quotation.
Deployment ready
Contact our defense engineering team for bulk procurement, customization, compliance documentation and field deployment support.