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