Tennessee Propellers, Inc.
Call for more info: 706-398-0651
How wooden propellers are made at TPI:
All TPI propeller blanks are manufactured from multiple laminations of select maple. Laminations are bonded with Aerodux 185 phenol-resorcinol adhesive. Lamination thickness varies form 1/8" to 3/8".
Carving to pitch, the most important step in propeller making, is done on a machine to insure that both blades will have exactly the same shape and pitch. After carving, each prop is hand-sanded to remove any machine marks. At this stage, preliminary balancing is done.
Wood sealers are next applied and again re-sanded. Each stage of production from the wood laminations to finished propeller is subject to a series of inspections. Final balancing is now performed.
TPI propellers are given their final finish in multiple coats of unique two component polyurethane coating containing aliphatic polyisocyanate. This coating was especially formulated for the severe environment to which propellers are subjected. The surface is extremely hard, yet flexible to protect against nicks and abrasion. It has high gloss retention properties superior to conventional urethanes.
TPI offers two types of products to protect the leading edge of the propeller:
Leading Edge Tape: A clear .012 thick x 2" adhesive backed, anti-abrasion tape. We can install here at our shop or mail to you for your own installation.
Uralite: An inlaid urethane rubber leading edge. A portion of the leading edge is cut-out of the propeller and then filled in with this urethane compound. The uralite is then shaped to the airfoil of the prop. We can install on new and used props here at our shop.
Because of the numerous combinations of engines and aircraft design, there are many possible propeller sizes; too many in fact to keep anything in stock. We custom make propellers per order. The process generally takes about 3 weeks.
There are some standard sizes for propellers, but to make sure you get the correct propeller you need, here is the information that we need in order to get your propeller into production: View prop rotation while standing at tail of plane.
We can also help you determine the correct size of propeller you need for your specific applications / designs. Just give us a call! 706-398-0651
*Engine / Aircraft
*Prop Rotation - Left Hand or Right Hand
Tennessee Propellers Inc. manufactures wooden propellers for ultralight aircraft, experimental aircraft, powered parachutes, and microlight aircraft. We USED TO BE the world distributor for Zenoah two cycle engines, models G50C, G50D and G25B-1. IN 2004, Zenoah DISCONTINUED PRODUCTION OF THESE ENGINES. We have a limited inventory of most Zenoah engine parts. Call or e-mail to check for part availability.
Gyrocopter blade shape with urethane leading edge.
All props in picture are Left Hand rotation