Harry Higley Prop Locks – It is best to use a Prop Lock in a pair or with a Heavy Hub, allowing them to lock together and eliminate propeller spinoff.
The Prop Lock would replace the propeller washer, and either a second Prop Lock or a Heavy Hub would screw against the first Prop Lock.
These brass nuts weigh 0.5 oz, 3/16” thick, and are 7/8” hex pattern.
How We Began
Harry Higley Products was founded as a family business in the 1970’s. The story of how Harry Higley Products began shows how someone can take a hobby they love and turn it into a successful business.
During the 1960’s and 70’s Harry Higley flew competition Control Line Navy Carrier. Harry’s family supplied handmade throttles that worked – at least some of the time. These throttles provided the foundation upon which the company was founded.
In 1977, Harry offered several metal products made on automatic screw machines. Later that year Harry incorporated and exhibited at his first Toledo Weak Signals Show. The show’s attendees liked the Biso Brass Tubing Bender and Heavy Hub.
Encouraged by these modest successes, He went home and set out to design other gadgets. These included wire benders, safety spinners, a aluminum glow plug caddy and a smoke system. These products are still available and popular today.
In 1980, Higley published Harry’s Handbook for Miniature Engines. That proved to him that there was a demand for more manuals. His next book, “There Are No Secrets”, put his young company on the map. In subsequent years more books followed.
In 1986, Harry left his full-time job to concentrate on his surprisingly successful family business. Harry and Cora Higley operated Harry Higley Products for about thirty-five years. When they decided it was time to retire, they sold the business to Sullivan Products, who continue to run it to this day.
The Sullivan Family of Products
The company was founded by Matthew Sullivan in the 1940s It’s first products were lines, handles and connectors for control line flying. Many of those products are still made by Sullivan today.
A bricklayer by trade, “Matty” soon achieved enough success to make model product manufacturing his sole occupation. He was very active in the business up until his death in 1980. Perfect Parts is also a member of the Sullivan Family of Products.