R44

Note This does not serve as a replacement for a POH. The information below is for informational purposes only. You must always reference your aircraft’s POH to determine how to operate it safely.

You can download the Robinson R44 POH here.  Raven II POH here.

General

  • Dimensions: 83″W x 129″H x 459″L
  • Rotor diameter: 33 feet
  • 2 blade, semi-rigid, underslung, teetering main rotor system. Driven by V-belts.
  • Engine R44 Raven I – O-540 – 225 BHP (5 minutes) / 205 BHP (max continuous)
  • Engine R44 Raven II – IO-540 – 245 BHP (5 minutes) / 205 BHP (max continuous)

Airspeeds

  • Vne: 130 KIAS (below 2200 lbs) / 120 KIAS (above 2200 lbs)
  • Vy – 55 KIAS
  • Takeoff / climb – 60 KIAS
  • Max range – 100 KIAS
  • Autorotation airspeed: 70 KIAS
  • Max Glide: 90 KIAS / 90% rotor RPM
  • Min rate of descent: 55 KIAS / 90% rotor RPM
  • Doors off max airspeed: 100 KIAS

Engine Limits

  • Power-on Rotor RPM: 99-102% (Raven I) / 101-102% (Raven II)
  • Power-off Rotor RPM: 90-108%
  • Oil quantity: 7-9 quarts
  • Oil max temp: 245° F
  • CHF max temp: 500° F

Electrical

  • 14V electrical system / 70 amp alternator (Raven I) – 28V optional
  • 28V electrical system / 70 amp alternator (Raven II)
  • With Master and ALT switches off, tach receives power through bypass if Clutch engaged

Weight Limits

  • Max gross weight: 2400 lbs (Raven I) / 2500 lbs (Raven II)
  • Min gross weight: 1550 lbs (Raven I) / 1600 lbs (Raven II)
  • Max per seat: 300 lb
  • Max baggage: 50lb
  • Min solo pilot + bags: 150 lb
  • Basic empty weight: 1460 (Raven I) / 1510 (Raven II)

Operational Limits

  • Max operating density altitude: 14,000 feet
  • Max operating altitude: 9,000 AGL (allows landing within 5 minutes in case of fire)
  • Solo only from right seat
  • Low-G pushovers prohibited
  • VFR day and night only
  • Clutch light 7-8 seconds max (if longer, pull breaker and land)

Fuel Limits

  • Main fuel tank: 30.5 (29.5 usable)
  • Aux fuel tank: 17.2 (17 usable)

Carb Heat (Raven I)

  • On below 18″ manifold pressure
  • On between -4° and +30° C (25° – 86° F)
  • On to keep out of yellow arc on gauge