TECHNICAL SPECIFICATIONS
Length w/o main blades: 1,381 mm
Overall height: 363 mm
Frame width: 217 mm
Main blade length: 685 – 716 mm
Tail blade length: 105 – 115 mm
Main shaft diameter: 15 mm
Feathering shaft diameter: 10 mm
Tail boom diameter: 32 mm
Tail ratio: 4.767 (5.0 optional)
Drive system: Direct-drive main gear system
Clutch system: Dual-support clutch stack with self-aligning geometry
One-way bearing: Heavy-duty sprag type
Swashplate geometry: 120° CCPM, 1:1 control ratio
Frame material: Carbon fiber with CNC aluminum bearing blocks
Head & tail material: 7075-T6 aluminum
Engine class: .90 / 105 nitro
Fuel tank capacity: 600 cc
Recommended servo size: Full-size cyclic and tail
Main gear: 139T
Pinion gear: 17T
Weight (dry, w/o fuel): Approx. 4.1 – 4.2 kg depending on setup
ULTIMATE
ROTOR HEAD
The Specter 700 V2 Nitro Ultimate rotor head represents the pinnacle of precision engineering and flight refinement.
Each component is fully CNC-machined from 7075-T6 aerospace-grade aluminum in a single setup,ensuring exceptional accuracy, rigidity, and near-zero tolerance deviation.
This advanced design delivers unmatched stiffness, perfect tracking, and ultra-smooth control response,even under the extreme dynamic loads of modern 3D flight.
The 1:1 swash-to-rotor geometry guarantees completely linear cyclic and collective behavior,providing the most direct and connected flight feel of any 700-class helicopter.
Every subtle stick movement translates instantly into precise aircraft response,giving pilots a pure, confident, and seamless control experience.
Taper-Fit Clutch Design for
MAXIMUM CONCENTRICITY
The Specter 700 V2 Nitro Ultimate introduces XLPower’s proprietary taper-fit clutch system,a precision-engineered interface inspired by machine-tool spindle technology.
This tapered connection between the engine shaft and clutch assembly ensures perfect concentricity among the engine, fan, and clutch,maintaining alignment under all operating conditions and minimizing vibration at high RPM.Based on the original Specter 700 Nitro design, the system has been fully refined with a factory pre-balanced clutch assemblyand a new extended precision engine shaft.
The shaft is manufactured with less than 0.02 mm runout from factory, ensuring exceptional concentric accuracy and rotational stability.The reduced taper angle provides a tighter, more consistent engagement while requiring less torque to achieve full locking —reliable, repeatable, and easy to service.
Recommended tightening torque is 18 – 20 Nm, offering secure retention without excessive force.
Engine Bay and
MAINTENANCE ACCESS
Designed for real-world usability, the Specter 700 V2 Nitro Ultimate makes engine maintenance faster and easier than ever.
The power system mounts from below, allowing the entire engine to be removed in just a few minutes —no longer requiring the tedious disassembly typical of conventional nitro models.
This bottom-mount layout, combined with open side access to the fan shroud and clutch system,makes tuning and servicing simple, efficient, and frustration-free.Ease of maintenance has always been a core design principle for XLPower nitro models,and the Specter 700 V2 Nitro Ultimate continues that tradition —delivering true performance with real-world practicality.
REDESIGNED
AIRFRAME
The Specter 700 NME is built around a lightweight, ultra-rigid carbon fiber frame that maximizes strength while minimizing overall mass. Its streamlined layout achieves exceptional balance and agility without sacrificing durability. The optimized frame geometry distributes loads evenly throughout the structure, resulting in fast, precise handling and superior flight stability. Every gram of material serves performance — no excess, no compromise.
ULTIMATE
TAIL ROTOR SYSTEM
The Specter 700 V2 Nitro Ultimate tail system is engineered for maximum precision, strength, and long-term reliability.Its all-CNC, one-piece construction improves alignment accuracy, structural rigidity, and vibration resistance.The system adopts a teeter-style tail rotor design, identical to full-scale helicopter mechanics,delivering superior tail hold, reduced vibration, and quieter operation.
Inside the tail rotor hub, curved shim washers with damping O-rings absorb micro-vibrations,providing smoother tail response and improved long-term durability.This refined tail system gives the Nitro Ultimate the same flight feel and precision control as the electric version,while offering full parts compatibility between nitro and electric models —making maintenance, upgrades, and spares completely interchangeable.Together, it delivers the hallmark XLPower tail performance:
tight, smooth, and competition-proven stability.
