The Area SZ1804 are the third MEPS FPV motors reviewed on FirstQuadcopter. Whereas the earlier fashions had been for five″ drones, these 1804 are designed particularly for 3-3.5″ Cinewhoop drones, that are favored for his or her compact dimension, agility, and skill to navigate tight areas.
On the subject of drone efficiency, particularly within the realms of racing, freestyling, and filmmaking, brushless motors are a key part, and you must select them properly. Choosing the right motors to your construct ought to begin from body dimension and anticipated take-off weight. Whereas for cruising, a 4:1 weight-thrust ratio must be tremendous, to win a race, you will want 10:1 and even 15:1. The MEPS SZ1804 motors have a wonderful steadiness between self-weight, energy consumption, and thrust (lifting energy), making them appropriate for indoor flights in tight areas and suitable with out of doors freestyle and racing flying, providing flexibility throughout varied eventualities.
Normally, brushless motors are marked with a 4-digit quantity: AABB. The primary two digits (“AA” half) confer with the stator width (measured in millimeters) and “BB” to the stator top. The “KV” parameter represents the variety of revolutions a motor makes upon making use of 1 Volt present with none load connected to the motor. For instance, these MEPS 1804 have a KV score of 2400, that means that the motor spins 2400 rpm on the software of 1V with out load (propeller put in).
MEPS Area SZ1804 (T-MOTOR Pacer P1804) evaluate
Disclosure: I obtained these brushless FPV motors for a product evaluate collaboration with MEPS. Though the merchandise had been supplied totally free, all opinions on this article stay my very own, and the sponsor didn’t affect me.
MEPS, or MEPSKING, based in 2023, is a comparatively new model within the FPV components market. Their product vary consists of motors, propellers, flight controllers, and ESCs. Aiming to change into a one-stop store for FPV drone builders, additionally they provide merchandise from the highest manufacturers. Some trade voices say that MEPS is in some way associated to T-Motor, a well-established UAV brushless motor model. Because the TMOTOR Pacer P1804 seems to be nearly equivalent to the MEPS SZ1804, there must be some fact behind these rumors.
MEPS despatched me their SZ1804 present pack with two units of SZ3046 propellers, two battery bands, and a pleasant hat. The motors are individually full of two units of mounting screws (M2x6mm and M2x7mm).
At a look
I obtained Area 1804 motors in a silver-red coloration scheme, however silver-green can be obtainable. You may also select from two KV choices: 2450KV for 6S and 3500KV for 4S builds. Right here, I ought to point out that T-Motor’s Pacer P1804 has a barely completely different KV possibility: 2400KV and 3400KV.
Every motor comes with two units of mounting screws, 6mm lengthy for thinner frames and 7mm for thicker ones. They undertake light-weight 1.5mm stainless-steel and a sturdy Uni-Bell construction that gives excessive crash resistance with out added weight. Product of 6061 aluminum alloy, utilizing N52H arc magnets, 220°C enamel-coated wire, and NMB ball bearings (granted for 10000 working hours), these motors present dependable efficiency and have an prolonged lifespan.
As you possibly can guess from the product identify, the stator has a diameter of 18mm and a top of 4mm. The MEPS SZ1804 motors weigh about 15 grams and have 120mm lengthy wires. The motor leads are pre-tinned for straightforward soldering. The propellers might be secured to the bell utilizing 2 or 4 screws. You should utilize 3 or 3.5″ propellers -Meps recommends utilizing their SZ3046 props (picture beneath). The bottom has a 16x16mm mounting sample with M2 screws.
Apparently, the MEPS Area SZ1804 gives wonderful construct high quality, particularly at its engaging worth level. The bearings rotate easily when turned by hand.
In keeping with the producer’s take a look at knowledge, the KV2450 model has 1.42g/W effectivity and the KV3500 1.49g/W.
I plan to make use of these motors on a brand new construct utilizing an iFlight AOS Cine35 EVO body and a RushFPV BLADE F7 AIO flight controller. The construct ought to be capable of raise a full-size GoPro 13 with no subject. I haven’t determined but whether or not to make use of a Walksnail Avatar HD FPV system or a DJI O3 Air Unit. After I end the undertaking, I’ll replace this evaluate with extra impressions concerning the real-world efficiency and sturdiness of those MEPSKing motors.
Key options:
Model-new rotor design with an anodized two-color course of
Appropriate for 3-3.5 inch Freestyle, Racing, and CineWhoop FPV drones.
6061-T6 Aluminum is a high-quality materials with a high-strength one-piece rotor.
Personalized N52H curved magnetic metal, robust magnetism, giant torque.
NMB bearings are sturdy and have an extended lifespan.
The motor runs extra stably by excessive temperature-resistant 220° copper wire winding.
New optimized adjustment and calibration, preserve excessive torque at low pace, linear energy output when the throttle modifications quickly, exact and fast response when turning.
Pricing, availability, and choices
The SZ1804 motors with two KV choices (2450 and 3500) might be bought straight from MEPS’s on-line retailer. Now, you will get one motor for simply $15.90 with 20% off the common worth. For a bundle set of motors with two units of 3046 propellers, you will want to pay $71.01. When you make a combo buy, you’ll obtain two battery straps and a hat totally free. You possibly can go for silver-red or silver-green coloration schemes.
MEPS SZ1804: KV comparability desk
KV
2450
3500
Lead
120-123mm
120-123mm
Weight(incl. cable)
14.5±2g
14.5±2g
Motor Dimension
23x17mm
23x17mm
Shaft Diameter
φ1.5mm
φ1.5mm
Lipo compatibility
6S
4S
Configuration
12N14P
12N14P
Inside Resistance
190mΩ
190mΩ
Idle Present(10V)
0.8A
1.3A
Peak Present(60S)
18.7A
23.7A
Max Energy
476W
386W
Max Thrust
680g
577g
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