Propellers and Parts for Ultralight Aircraft
 | Ultra-Prop Blades - Molded high-strength, glass-reinforced composite. Color: Black. Tip-to-root length: 26-1/4 inches. (Makes a 59” dia. prop including hub). Score lines provided ½” apart near tips for cutting to custom diameters down to 48”. All blades identical and interchangeable. Learn more about the exclusive Brolga Ultra-Prop, also from Competition Aircraft. |
 | Pitch Blocks - Molded high strength, glass-reinforced composite. Grooved faces provide precision alignment with blade base. Color: Black. (Two identical blocks per blade). Separate blocks required for each setting. Block angles from 8 degrees to 18 degrees available. |
 | Universal Hubs - Molded high-strength glass-reinforced composite with integral steel reinforcing plate. 6-1/2” O.D. Color: Black. Fits 1” dia. prop shaft. Accommodates most mounting plate bolt hole patterns from 2-1/4” to 3-1/4” dia. and ¼”, 5/16” or 8mm prop mounting bolts. Assembled hub is 2-1/4” thick. (Two identical halves per assembly). |
 |
A/N Hardware - Blade mounting bolts: AN4-26A (2-3/4” long). Washers:
AN960-416. Lock nuts: AN365-428. (2-sets required/blade). Corresponding A/N Hardware is also available for Brolga Blades. |
 | Hub Mounting Bolt Sleeves - (Not required for 5/16” or 8mm dia. mounting bolts). High-impact plastic. Set of 6 sleeves shipped with each Ultra-Prop Kit. ¼” I.D. x 5/16” O.D. x 2” long. Bolt Sleeves are available separately if required. |
 | Prop Flange Kit - Kit includes a taper lock bushing and matching modified sprocket to provide the interface between keyed, straight shaft small gas engines and the Ultra-Prop. Also provided is a “crush” or backing plate, mounting hardware and key. |
 | Tiny-Tach - Digital tachometer and hour-meter in one unit. Specify model 1C (one spark every 180 degrees of crank rotation) or model 2C (one spark every 360 degrees of crank rotation). Most Honda, Briggs, and Kohler models use model 2C. Most single or two cylinder, two stroke Kawasaki, Cuyuna and Rotax engines use model 1C. |
Learn more about ordering Ultralight Aircraft Parts and the Brolga Ultra-Prop from Competition Aircraft.
Contact us regarding any questions or curiosities you may have regarding our products.