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ADM Series 9 and Series 4

Brushless outrunner propulsion with a documented supply chain — built for platforms where the motor is a procurement item, not a consumable.

Doc NRD-ADM-DS-01
Rev A · Preliminary
Overview

Propulsion you can
put on a bill of materials.

The ADM range exists because propulsion is where sovereign programmes quietly fail: a motor that performs beautifully but cannot be re-sourced is a single point of failure with a part number.

Series 9 is the high-torque, 48 V class outrunner for larger multirotor and fixed-wing installations. Series 4 is the compact 680 KV motor for 6S multirotors — 5.42 kg of tested thrust at 155 g.

  • 01
    Traceable provenanceDocumented sourcing and production test records, aligned to NDAA Section 889 requirements.
  • 02
    Aerospace materialsAl 7075 casing and bell, N52H arc magnets, SUS420 shafts on the Series 4.
  • 03
    Tested, not estimatedThrust, current and temperature data measured on a reference propeller, published per motor.
ADM · section A–ANRD-ADM-GAD-01
Ø 90 mm BELL STATOR SECTION A–A · OUTRUNNER 12N14P · N52H ARC MAGNETS
Series 9

ADM9 — high torque, 48 V.

A high-torque outrunner for platforms that need sustained lift from a 12S-class bus, in a compact 90 mm form factor with dual mounting PCD flexibility.

TABLE 05
ADM9
Electrical
ArchitectureOutrunner brushless
KV rating100 KV
Rated bus voltage48 V DC
Cell class12S LiPo reference
Mechanical
Form factor90 mm
MountingDual PCD flexibility
ProvenanceDocumented per build
ComplianceNDAA Section 889 aligned

Full torque, efficiency and thermal data are supplied with the datasheet for the selected winding.

Series 4

ADM3 — 680 KV, 5.42 kg thrust.

A compact 6S outrunner that delivers more than 35 times its own mass in thrust, measured on a folding 1248 triblade propeller.

TABLE 06
ADM3
Specification
KV rating680 KV
Configuration12N14P
StatorØ 35.10 × 15 mm
Overall dimensionsØ 41.8 × 50.55 mm
Weight incl. cable155 g
Internal resistance43 mΩ
Idle current @ 10 V1.47 A
Maximum current65.60 A
Maximum power1,653 W
Maximum thrust (tested)5,422 gf
Installation
Recommended cells6S · 22.2 V nominal
Recommended ESC6S · 80 A
Tested propellerFolding 1248 triblade
Lead wireAWG 16 · 350 mm
Magnet gradeN52H
Casing / bellAl 7075
ShaftSUS420 · M5 thread
Bolt patternM3 · 25 × 25 mm
Dynamic balance≤ 6 mg
Insulation resistance≥ 0.5 MΩ
ADM3 performance · 25.2 V · folding 1248 triblade
ThrottleCurrentRPMThrustPower
30%4.60 A4,838929 gf116 W
50%15.60 A7,3292,178 gf393 W
70%38.60 A9,6003,909 gf973 W
100%65.60 A11,1545,422 gf1,653 W

Measured at 25.2 V with the folding 1248 triblade propeller. Motor winding temperature 78 °C at 26 °C ambient. Peak efficiency 8.01 g/W at partial load.

Next step

Motor selection and volume supply.

Tell us the platform, the propeller and the duty cycle. We will match a winding and quote against volume.