HCM 880 BBMG High-Speed 20mm HV CL Digital Servo
HCM 880 BBMG High-Speed 20mm HV CL Digital Servo

HCM 880 BBMG High-Speed 20mm HV CL Digital Servo

P/N: S4074


Equipped with all-metal parts designed for durability and extreme operations, the Graupner HCM 880 BBMG High Speed High-Voltage Coreless Digital Servo provides reliable high torque and great speed under extreme conditions with consistent control input performance.  Optimized for high voltage input (8.4V), the HCM servos are specially designed to provide speed and holding power with low dead-band technology for extra reliability and precision while the aluminum case allows for lower operating temperatures and better run times.

Fully programmable to meet your unique specifications via the free Graupner Servo Setup Software, the HBM 880 BBMG is ideal for large scale airplanes and as a tail servo for medium to large size helicopters.


  • Coreless motor
  • Full aluminum body
  • High Voltage
  • Faster response time and longer run time
  • At least five times more durable and 30% faster response times than brushed servos
  • Programmable digital circuit and SMT circuitry
  • 2048 high resolution
  • Supporting 1-16µ depending on programming
  • Wide frame rate range of 20Hz-400Hz
  • 12-bit processing circuit (At least twice resolution comparing to 10-bit processing circuit)


  • Tail servo for 700-800 helicopters
  • IMAC class airplanes
  • Large 3D airplanes
  • Large scale airplanes


  • HCM 880 BBMG High-Voltage Digital Servo
  • Horn set

Five Stars
Worked perfect for my yeti xl.strong and fast.
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Reviewed by: (Verified Buyer)  from Amazon on 2/22/2016
Great torgue/speed but…
Great torgue/speed but I bought 2 of these for my racing buggy and the one I use for steering twitches a tiny bit. I thought about sending it back but its just a tiny twitch while you're not on the trigger or turning. I caught them on a 60% off deal here on amazon and for that price they can't be beat! I would have giving 5 stars had they both worked flawlessly.
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by: (Verified Buyer)  from Amazon on 4/6/2015