Gyroplane Spec Sheet

TW Barnett J4B2
Reg.# N3476      Serial# 224      $32,000
Trailer/Hanger      $8,000
Location      Healdsburg, CA

Phone: (707) 431-2151     Fax: (530) 566-0356     Satellite: (254) 240-5797
Email: Joe White

1.2.5
ROTOR BLADES

Manufacturer
Barnett

Rotor Disc Diameter
28.33 Feet

Blade Cord
7 3/4 Inches

Materials
Aluminum

Disc Loading (Disc Area = 630.352
GW 1292 lbs. = 2.04 lbs./ft2

Rotor Blade Loading(Blade Area = 15.52)
GW 1292 lbs. = 83.35 lbs./ft2

1.2.6
PERFORMANCE

Minimum Speed
35 - 40mph (maintaining altitude with full power)

Maximum (Vne) Speed
130 mph

Stall Speed
N/A

1.2.7
SPEED AT TAKEOFF (STANDARD SEA LEVEL

Take Off Speed Speed
45 - 60 mph

Take Off Roll
150 - 500 ft.

Landing Roll
0 - 10 ft.

Rate of Climb
650fpm

1.2.8
FUEL

Fuel Capacity
17.5 U.S. Gallons

Endurance
3.0 Hours (1/2 hour reserve) at 75% cruise

Unusable Fuel
.2 U.S. Gallons

1.2.9
OIL

Capacity
Approx.4.2 U.S. quarts - DO NOT OVERFILL

Type
API Designation SF or SG or greater

5W-30
Below 32° F

10W-40
-10°F to 90° F

20W-40
Above 100° F

20W-50
Above 120° F

NOTE:
THESE OIL WEIGHTS ARE RECOMMENDED BY SUBARU AND ARE THE MINIMUMS. SUBARU CONTNUES ITS RECOMMENDATION THAT THE NEXT GRADE OF OIL SHOULD BE USED UNDER SUSTAINED HIGH SPEED OPERATIONS>

WARNING:
Non-Detergent or straight mineral oils must never be usrd.