AEROCOR LEARNING CENTER
ROBINSON R44 MODELS
Astro / Raven I / Clipper I / Raven II / Clipper II / Cadet
EXTERIOR DIMENSIONS ALL MODELS
DESIGN WEIGHTS AND CAPACITIES
R44 Astro / Raven I / Clipper I
WEIGHTS AND CAPACITIES
R44 Raven II / Clipper II
WEIGHTS AND CAPACITIES
R44 Cadet
WEIGHTS AND CAPACITIES
PERFORMANCE
R44 Astro / Raven I / Clipper I
PERFORMANCE
R44 Raven II / Clipper II
PERFORMANCE
R44 Cadet
PERFORMANCE
STRUCTURAL DESIGN LIMITATIONS
R44 Astro / Raven I / Clipper I / Raven II / Clipper II
R44 Cadet
AIRSPEED PARAMETER
SPEED
AIRSPEED PARAMETER
SPEED
Key Notes
Vne (Never Exceed): The Cadet has a slightly lower limit (120 KIAS vs. 130 KIAS) due to structural differences
Autorotation Speeds: Identical between models for pilot familiarity
Climb Performance: Both series share the same optimal climb speeds (Vy = 55 KIAS)
HISTORY AND GENERAL DESCRIPTION
The first version of the R44 (Astro) made its prototype flight in March of 1990. Followed by FAA certification in December of 1992 and the first production helicopter was delivered in February of 1993. Since the inception of their four seated helicopter, Robinson has delivered more than 6,800 R44’s worldwide. The simple design and proven reliability has made the R44 the world’s best selling general aviation helicopter every year since 1999.
The support for Robinson Helicopters boasts more than 400 service centers and dealers worldwide giving its customers convenience in maintaining their aircraft by factory trained mechanics and personnel. The R44 has been the go to choice for owner flown aircraft.
ACCOLADES
According to Professional Pilot Magazine’s annual helicopter product support survey Robinson is “The Undisputed Leader” amongst piston helicopters support.
A record 21 years straight in 1st place. Professional Pilot called Robinson the benchmark for piston helicopter support.
R44 MODEL TIMELINE
First model
Astro – Introduced January 1991
Initial prototype N44RH made its first flight on March 31st 1990
FAA certification in December 1992
First production Astro delivered February 1993
Raven I – Introduced January 2000
Updates to include from Astro
Standard factory hydraulics. Upgraded elastomeric tail rotor bearings. Adjustable pedals for pilots
TBO increased from 2000 hours to 2200 hours
Raven II – Introduced July 2002
Updates to include a fuel injected Lycoming IO-540-AE1A5 engine with increased horsepower and performance capabilities
Gross weight increased from 2400 to 2500 lbs
Optional factory air conditioning
Cadet – Introduced November 2015
Designed as a R44 Raven I helicopter having a two seat configuration with the aft cabin modified for cargo only
FAA certification in May 2016
Delivers first production Cadet in July 2016