Revolution Helicopters Mini 500 Introduction

Mini 500 Helicopter HistoryRevolution Helicopters Mini 500 Helicopter History

Revolution Helicopter’s Mini 500 Kit Helicopter


The first new Mini-500 shown in the photograph nearing completion, was pulled off the production line and displayed at the 1991 EAA Fly-In in Oshkosh, Wisconsin.

“We just made out 52nd sale and many of these customers should expect to receive their aircraft sometime by the end of this year,” said Dennis Fetter, chief designer and president at Revolution Helicopter Corp.

“The interest in the aircraft has been overwhelming!”, Fetters said. “Although RHC anticipates an extremely large domestic market, surprisingly, two thirds of its advance sales have been overseas”, said Fetters.

RHC makes the Mini-500 affordable and practical for almost anyone to own their own helicopter. Before, it was impractical because of the tremendous expense involved in operating and maintaining a helicopter.

“The total design spectrum of the Mini-500 is a one-man utility and sport aircraft providing true helicopter capabilities and performance”, Fetters said.

VIDEO: Original promotional Mini 500 video

The Mini-500 is inherently more stable than helicopters of its type primarily because of the new patent pending control system. The use of this machine is only limited by one’s imagination! Already inquiries and purchases have been made for recreation, commuting, agricultural, medical, traffic and border patrol, among others.

VIDEO: Factory Destructive Testing of the Mini-500 helicopter

Dennis Fetters is still contactable at though the Mini 500 is no longer in production.

Want the short version of the Mini 500 history? …read the full story here Aero News Network.

Mini 500 Helicopter Standard Equipment Includes
Vacu-Formed Instrument Panel Dual Rotor and Engine Tachometer Carpeting and Trim
Magnetic Compass Sensitive Altimeter Vacu-Formed Interior Panels
Hourmeter Control Friction Locks Form-Fitted Fully Upholstered Seat
Slip and Bank Indicator Electric Starter Removable Cabin-Access Doors
Engine Coolant Temperature Extra Space for Additional Equipment Pre-Balanced Main Rotor Blades
Vertical Speed Indicator Navigation and Landing Lights Ground Handling Wheels
Air-speed Indicator Throttle Correlation Electric Clutch Engagement

Mini 500 Helicopter Descriptive Data

Mini 500 Helicopter Main Rotor
Articulation Semi-rigid teetering
Number of Blades 2
Diameter 19 feet
Blade Chord 8 inches (Constant)
Tip Speed @ 100% RPM 547 FPS or 373 MPH
Blade RPM 550

Mini 500 Helicopter Tail Rotor
Articulation Free to teeter, rigid in-plane
Number of Blades 2
Diameter 3 feet 10 inches
Blade Chord 4 inches
Precone Angle 2 degrees
Tip Speed @ 100% RPM 536 FPS or 365 MPH
Blade RPM 2671

Mini 500 Helicopter Drive System
Engine to Upper-Sheave (Two) Two groove power band V-belts with 2.433:1 speed reducing ratio
Upper-Sheave to Drive line Sprague type over running clutch
Drive line to Main Rotor Spiral-bevel ring and pinion with 4.857:1 speed reducing ratio
Drive line to Tail Rotor Spiral-bevel gears

Mini 500 Helicopter Powerplant
Model Rotax 582
Type Two cycle two cylinder, rotary valve engine, lubrication by oil pump, liquid cooled, with integrated water pump
Displacement 580.7 cm3 (35.41
Normal Rating 67 BHP @ 6500 RPM

Temperatures Operational Values

Mini 500 Helicopter CHT: (Cylinder Head Temperature)
Normal 110-130°C (230-270°F)
Max 150°C (300°F)
Difference Between 2 Cylinders 10°C (36°F)

Mini 500 Helicopter EGT: (Exhaust Gas Temperature)
Normal 500-620°C (930-1150°F)
Max 650°C (1200°F)
Difference Between 2 Cylinders 25°C (45°F)
Crankcase Temperature Maximum 80°C (175°F)
Cooling Liquid Temp Max 80°C (175°F)

Mini 500 Helicopter Timing System
Ignition Type Breakerless DUCATI capacitor discharge dual ignition with magneto generator
Generator Output 170W AC at 6000 l/min. and 13.5V RMS
Ignition Timing 1.96mm = .077 in. (18") BTDC

CARBURETOR 2 x BING 36, cable choke
FUEL Regular automotive gasoline, octane number not below MON 83 or RON 90 (unleaded preferred)
LUBRICATION OF ENGINE Super-two stroke oil, proposed ASTM/CEC standard TSC 3, mixing ratio 1:50 (2%) by oil pump
ENGINE T.B.O 500 hour maximum
Review Date
Reviewed Item
Mini 500 Kit Helicopter

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