Highest Quality Products Coast to Coast

Universal Engine RPM and Rotor RPM Indicator, 3 1/8"

Universal Engine RPM and Rotor RPM Indicator, 3 1/8"

For Experimental Use Only

Item:   MGL RV-3
Price: $250.00 
Item Qualifies for Free Ground Freight (48 States) on Orders Over $500
Add to Cart
The Velocity Singles are our latest Singles that fit in standard round 3 1/8” cutout. Using a custom-made high resolution graphics display, these instruments provide excellent daylight readability, even in direct sunlight. In addition they all have built in backlighting making them easy to read at night time. Each instrument includes a rotary control plus 2 independent keys for easy menu navigation and to access specific instrument features. The Velocity range has a switch mode power supply allowing the instruments to be used in both 12V and 24V environments as well as for reduced power consumption. Reverse and over voltage protection is provided.
  • Standard 3 1/8” aircraft enclosure (can be front or rear mounted)
  • Rotary control plus 2 independent buttons for easy menu navigation and user input
  • Alarm output as well as an onboard red LED for alarm notification
  • Large backlit graphic LCD with adjustable contrast
  • Multiple display screens (model dependent)
  • On board voltage reversal and over voltage protection for harsh electrical environments
  • SMPS (Switch mode power supply) for use in both 12V and 24V systems as well as for reduced power consumption
  • Light weight design
  • Field upgradeable firmware
  • 3-Year Limited Warranty
For Manuals visit the Click Here for Cutout Dimensions


Universal Engine RPM and Rotor RPM Indicator

The RV-3 universal engine RPM and rotor RPM unit is a 3 1/8” instrument providing a universal RPM counter that can be adapted to a variety of roles. Typical uses are engine RPM displays or Helicopter / Gyroplane Rotor RPM displays.

The RV-3 displays RPM in a digital readout as well as in a scalable analog bar graph display. In addition the RV-1 provides a 24 entry automatic flight log that stores the duration of each of the last 24 flights. It also has a Hobbs meter (can be set to the current engine time) which is password protected,an engine running timer/flight timer and a programmable maintenance timer to schedule routine engine maintenance. The RV-3 also features a programmable RPM high alarm as well as it records the maximum RPM reached in permanent memory.
  • Measures RPM from 0 to 20000 RPM.
  • Includes a 24 entry automatic flight log
  • Includes a settable Hobbs meter (Password protected) and an engine running timer/flight timer.
  • Contains a programmable high RPM alarm
  • Contains a programmable maintenance timer for scheduled routine engine maintenance
  • Records maximum RPM reached in permanent memory
  • Scalable analog bar graph indicating RPM
Chief Aircraft Logo

The best service and prices, with the largest inventory & fastest shipping. Serving aircaft owners, pilots & RC modellers for 30 years.

Grants Pass Airport
1301 Brookside Blvd. - Grants Pass, OR 97526
West Coast Store: Mon-Fri 7am-5pm Pacific Standard Time

Deland Airport
813A Flightline Blvd. Ste. 1 - Deland, FL 32724
East Coast Store: Mon-Fri 8:30am-5:30pm, Eastern Standard Time

Secure Card Transactions

USA ePay

Chief's Secure Ordering

Online Orders:Our Site is Secure!
Aircraft / Avionics Orders:(800) 447-3408
Radio Control Orders:(877) 219-4489
24 Hour Fax:(541) 479-4431
Master Card Logo Visa Logo American Express Logo Discover Logo

Chief's Customer Service

Customer Service: (800) 447-3408

Customer Service Request Form

Customer Service Info

Business Hours

E-mail & Phone Numbers