Sensenich Wood Propeller Co., Inc.

   For aircraft which cruise in the 180 - 200 mph region and use a Lycoming O-360 series engine, Sensenich recommends the W70EM8L series propeller. This propeller was designed specifically for high performance pusher aircraft, with tailored airfoils and pitch distribution for maximum efficiency. Resaw construction is used, with 12 laminations providing the proper combination of strength and material stability under the high temperature and stress environment of pusher aircraft. All Sensenich propellers are manufactured under strict production certificate standards, with material certification and a 48 point conformity inspection for each experimental category propeller.

   Propeller pitch is selected as appropriate to aircraft type, engine rating, and climb/cruise preference. Propeller leading edge protection is provided by a recessed urethane leading edge which is cast in place on the blade with no aerodynamic penalties.

   Clear polyurethane finish is standard, with a gloss gray option.

   The W70EM8L propeller is experimental category, and has the same bolt pattern drilling as the standard Lycoming flange but requires use of a 7" diameter mounting flange and crush plate. The adapter assembly includes: crush plate, propeller mounting bolts, adapter mounting bolts, and adapter with customer specified extension length. The 1.25" length adapter is a "solid" type, while adapter lengths 3" and longer are of the "spool" type. Custom adapter lengths are available.

Specifications:

Standard Diameter 70 inches, can be shorter if desired

Hub Thickness 3.63 inches

Total Weight, (prop. only) 11 lbs

Prop + 1.25" assembly 21 lbs approximate

Propeller Recommendation (dia. x pitch):

NOTE: The standard pitches below will result in full throttle / level flight RPM’s approx. 2700-2750 at sea level. To reduce FTLF RPM’s by 100, increase pitch by 2 inches.

Long Eze/Cozy/Velocity:

Engine Climb Standard Cruise

O-360/180 HP 70x85 70x87 70x89

O-360/200 HP 70x87 70x89 70x91

• Field elevations above 4,000 feet, subtract two inches of pitch.
• Diameter and pitch changes are interchangeable for equivalent RPM’s: i.e. add 2" of diameter, then reduce pitch by 2" and vice versa.

Pricing:

p/n Category Price

W70EM8L-( ) propeller experimental $1001 (year 2000 price)

color option: gloss gray finish, white stripes N/A $25

M6S5 (1.25") solid adapter + hardware experimental $565

M6S16 (4") spool adapter + hardware experimental $578

The experimental "solid" adapter includes safety wire slots for added bolt torque security.

Prices subject to change without notice.

FOB Plant City, Florida, USA.

Delivery: 4-6 weeks typical.

Sensenich does not have an off-the-shelf spinner available for this design, but recommends Aircraft Spruce for spinner options. You must specify adapter type, hub drilling, and hub thickness when ordering.

Sensenich Wood Propeller Co.
2008 Wood Court - Plant City, FL 33563
Phone: (813) 752-3711 - Fax: (813) 752-2818