OPERATIONAL SPECIFICATIONS FOR SONEX N604CM
AIRFRAME
N Number N604CM
Make Jeffrey Shultz
Model Sonex
Serial # 1374
Production Status Amateur Built, Kit
Structure 6061T6 Aluminum
Wing Design Low wing, NACA 6002 airfoil
Corrosion Control Rustoleum Clean Metal Primer
Landing Gear Conventional, Steerable Tail Wheel
Wheels Azusa 5” Aluminum, ¾” Bearing
Tires McCreary Air Hawk 5.00x5
Tubes Aero Classic Leak Guard 5.00x5
Inflation Pressure 45 psi
Brakes Great Plains, Hydraulic
Brake Fluid Automatic Transmission Fluid
Design Limits (ult) +6.0 G / -3.0 G
Design Limits (load) +4.0 G / -2.0 G
CG Datum 53” Forward of Wing Leading Edge
Center of Gravity Range 63.8 in (20%) – 70.3 in (32%)
WEIGHTS
Empty Weight 675 lbs
Gross Weight 1200 lbs
Allowable Crew Weight 75-500 lbs
Wing Loading (gross) 12.2 lbs/sq ft
Power Loading (gross) 10 lbs/hp
Useful Load 525 lbs
Cargo Capacity (max) 10 cu ft, 40 lbs
DIMENSIONS
Length 17 ft, 7 in
Height 4 ft, 4 in
Wing Span 22 ft
Wing Area 98 sq ft
Mean Aerodynamic Chord 54 in
Wheel Base 70 in (to outside of wheels)
PERFORMANCE
Take Off Distance (gross) 750 ft
Take Off / 50 ft Obstacle (gross) 1350 ft
Landing Roll (gross) 900 ft
Surface Ceiling 17,500 ft
L / D 11 : 1
Crosswind Component 20 mph
Vsl (Stall, Landing) 40 mph
Vso (Stall, Clean) 42 mph
Vr Rotation Speed) 55 mph
Vx (Best Angle of Climb) 70 mph
Vy (Best Rate of Climb) 75 mph
Vgl(Best Glide) 70 mph
Vfe (Flaps Ext. Speed) 100 mph
Va (Maneuvering Speed) 125 mph
Vno (Normal Operation) 125 mph
Vne (Never Exceed) 197 mph
Max Speed (SL @ max cont pwr) 138 mph TAS
Max Level Speed (Indicated) 150 mph IAS
Cruise: 3000 rpm @ 8000 ft 165 mph TAS
Cruise: 2750 rpm @ 8000 ft 140 mph TAS
Rate of Des. Power Off @ 70 mph 675 fpm
Approved Maneuvers Steep Turns, Wingover, Chandelle
Spin, Loop, Aileron/Barrel Roll, Hammerhead, Cuban Eight, Split S
FUEL
Grade Auto Unleaded, Min 91 Octane
Or 100LL Avgas
Capacity 16 gal (15.8 useable)
Fuel Flow @ 3300 rpm 9.4 gph
Fuel Flow @ 2850 rpm (75%) 7.3 gph
POWER SYSTEM
Manufacturer Jabiru
Model 3300, Hydraulic Lifter
Serial # 33A2557 (Converted to 33L-106)
Weight 178 lbs, Complete
Engine Type 6 Cylinder, 4 Cycle, Horizontally
Opposed, Reciprocating
Rotation CCW, Viewed from Front
Displacement 3300 cc
Bore and Stroke 97.5 mm x 74 mm
Compression 8 : 1
Power Output 120 hp for 10 min, 90 hp continuous
Torque 85 ft-lbs @ 3300 rpm
Firing order: 1-4-5-2-3-6
Carburetor AeroInjector, ACV-C08LS-35mm
Cooling System Air Cooled w/External Oil Cooler
Oil W100 Ashless, Dispersant
15W-50 Multigrade
Preferred Brand AeroShell W100 Plus
Oil Capacity 3.5 – 4.5 qts (3.5 qts min)
Air Cleaner K&N RU-0630
Fuel Pump None – Gravity Feed
Max RPM 3500 rpm (3200 rpm static)
Idle RPM 800-1000 rpm
Cruise RPM 2850 rpm (avoid 2100-2400 rpm)
CHT Range 250-350º F (396º F Max)
EGT Range 1200-1375º F (1450º F Max)
Oil Pressure 33-76 psi (40-60 psi cruise)
Oil Temperature 160-220º F (175-195º F Cruise)
PROPELLER
Type Sensenich W54SK-64G
Construction Composite Covered Wood
Dimension and Pitch 54” x 64”
SN AK1283
Prop Bolts 6 each, AN6-43A, AN-616 Locknut
Prop Flange SAE
Index Position 10-4
MAINTENANCE DATA
Ignition Timing 20° BTDC (fixed)
Coil Gap 0.010” - 0.012”
Cylinder Head 5/16” 20 ft-lbs, 24 ft-lbs (new)
Spark Plugs 12mm NGK D9EA
Spark Plugs 11/16” 8 ft-lbs
Spark Plug Gap 0.022” - 0.024”
Tappet Cover Cap Screws 1/4" 5 ft-lbs
Oil Drain Plug 1/2” 8 ft-lbs
Intake / Exhaust Cap Screws 1/4" 8 ft-lbs
Prop Bolts AN5 17 ft-lbs (+/- 2)
Starter Motor Bolts 1/4” 8 ft-lbs
Alternator / Coil Bolts 1/4” 10 ft-lbs
Crankcase Main Studs 3/8” 30 ft-lbs
Crankcase Main Studs 7/16” 35 ft-lbs
Crankcase Cap Screws 1/4" 10 ft-lbs
Flywheel Bolts 1/4” 15 ft-lbs
5/16” 24 ft-lbs
3/8” 30 ft-lbs
INSTRUMENTS
Skyview 7” Display, SN 003044
Skyview EMS, SN 4199
Skyview ADAHRS, SN 05489
Skyview Transponder, SN 03814
MGL V6 Comm Radio, 130201530
Ameriking AK-450 ELT, SN 457 014
Updated: 14 July 2014