Nimbus 550 V2

Overview

The Nimbus 550 V2 builds on XLPower’s proven 550-class platform, engineered for demanding 3D and precision pilots.
Every component—from the strengthened rotor head to the compact upright servo layout—has been refined for smoother response, easier maintenance, and enhanced mechanical efficiency.

With full-size servo support, a new quick-release battery system, and optimized gear ratios, the Nimbus 550 V2 delivers high-power flight in a perfectly balanced mid-size airframe.

Designed for accuracy, durability, and maximum pilot confidence.

Structure Design

The Nimbus 550 V2 introduces XLPower’s innovative upright 120° servo layout, creating a more compact frame with precise, direct control response.
Its rotor head shares the same 1:1 control geometry as the Specter 700 V2, ensuring perfectly linear servo motion, reduced asymmetry, and a more connected, natural flight feel.

The system natively supports four full-size servos, with an optional mid-servo conversion kit available—but full-size servos are strongly recommended for the best performance, durability, and crash resistance.

Its 2.5 mm carbon upper side frames combined with a 7075 aluminum alloy chassis and rotor head deliver outstanding rigidity and crash resilience.
Designed as the strongest and most practical 550-class training helicopter, the Nimbus 550 V2 keeps spare parts affordable and easy to service.

A quick-release canopy system and optional rear battery quick-connect system allow battery swaps in under five seconds—no canopy removal needed.
As one of the lightest 550-class models on the market, it offers excellent 6S compatibility and explosive flight power.

Drive System

The Nimbus 550 V2 features a fully CNC-machined 11 mm main gear built for strength and precision.
A dual one-way bearing hub ensures maximum torque transfer and smooth autorotation performance—eliminating the risk of one-way slippage or failure.
This advanced transmission design provides reliable, consistent power delivery even under extreme 3D loads.

Tail Control System

The Nimbus 550 V2 features a tapered end-fitting design with an aluminum-core carbon tail control rod,
eliminating the need for traditional epoxy bonding for easier, safer, and more precise assembly.
Rod ends can be replaced quickly in the field—no curing time required—so you can be back in the air within minutes.
If damaged, only the carbon rod itself needs replacement, reducing maintenance costs while ensuring consistent tail control precision and long-term reliability.

Additionally, the tail rotor hub shares the same design as the Specter 700 V2,
utilizing a true teetering tail rotor system inspired by full-scale helicopter mechanics.
This configuration allows the tail grips to self-balance under load,
delivering stronger tail hold, lower vibration, and smoother, quieter operation even during aggressive maneuvers.

SERVO LAYOUT

GEOMETRY