T-MOTOR Navigator MN1320 KV49
Series: T-MOTOR Brushless motors for drones
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The Navigator MN1320 KV49 from T-MOTOR, a Chinese maker, is a 24S heavy-lift outrunner with protection rating IP45 for delivery and agricultural drones with NS45 propellers. The maker quotes up to 58 kg of thrust.
The motor weighs 2,070 g and measures 150 x 56 mm. At KV 49 and 91.81 V that works out to about 4,500 rpm at no load. The maximum thrust of 58,958 g is a test-stand value with the NS45x17.5 propeller, which is 45 inches in diameter, at 148.96 A and 91.81 V; that is about 13.7 kW. The power figure of 2,900 W applies for 180 s, and the peak current of 150 A carries no time span of its own. For sizing, the current of the test point counts.
A full 24S battery stands at 100.8 V (24 x 4.2 V). At this voltage, handling connectors and contacts calls for particular care, and the ESC must be rated for 24S. Batteries of this voltage pass the 160 Wh air-transport limit from about 1.8 Ah. IP45 protects against solid objects from 1 mm and against water jets. Aircraft of this class exceed 25 kg and need an authorisation in the specific category; spraying from the air is additionally subject to its own EU rules.
With a propeller diameter above 1.1 m, balance and a firm hub fixing decide the life of the bearings. After spraying work the motor and the cable exit should be cleaned. Check the winding insulation under sustained heat, the bearing run and the bell's concentricity.
Technical data
Other data
| Cell count (S) | 24Scorrect |
|---|---|
| Dimensions (mm) | 150x56correct |
| KV (rpm per volt) | 49correct |
| Maximum current (A) | 150correct |
| Maximum power (W) | 2,900correct |
| Maximum thrust (g) | 58,958correct |
| Power rating time base (s) | 180correct |
| Recommended propeller | NS45x17.5correct |
| Weight (g) | 2,070correct |
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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