A7100 MT/MS Metal Gear HV Wing Servo

The Spektrum A7100 MT/MS Metal Gear HV Wing Servo (part number SPMSA7100) is a slim, high‑voltage digital servo engineered for sailplanes and other thin wing applications. Delivering up to 8.3 kg‑cm (115 oz‑in) of torque with rapid 0.078 sec/60° transit at 8.4V, it combines a durable coreless motor with a low‑wear metal gear train for reliable, consistent control. A full aluminium case, single ball bearing support and low deadband contribute to smooth operation and exceptional precision.

Key Features

• Thin wing (10 mm) design with full aluminium case
• Metal gear drivetrain for durability
• Coreless motor with single ball bearing support
• Low deadband for precise centring and feel
• 25‑tooth spline and universal connector
• Digital control; MT/MS (mid torque/mid speed) performance

Specifications

• Operating voltage (HV): 4.8–8.4V
• Speed: 0.091 sec/60° @ 6.0V; 0.086 sec/60° @ 7.4V; 0.078 sec/60° @ 8.4V
• Torque: 96 oz‑in (6.9 kg‑cm) @ 6.0V; 100 oz‑in (7.2 kg‑cm) @ 7.4V; 115 oz‑in (8.3 kg‑cm) @ 8.4V
• Dimensions: 30 × 10 × 35 mm (L×W×H)
• Weight: 28 g (1.0 oz)
• Spline: 25‑tooth; Connector: Universal
• Servo type: Digital; Motor: Coreless
• Gears: Metal; Bearing: Single ball bearing
• Water‑resistant: No; Programmable: No; Overload protection: No
• Size category: Thin Wing; Application: Airplane / Sailplane

In The Box

• (1) A7100 Wing Servo
• (1) Double‑sided plastic servo arm
• (1) One‑inch red anodised aluminium servo arm