Propeller assembly and propeller blade retention assembly

A propeller assembly for an aircraft comprising:

• a hub having at least one receiver opening;
• a receiver located within the receiver opening and having a first collar defining a blade opening;
• a blade having a second collar and a protrusion, with the second collar abutting the first collar and the protrusion received within the blade opening;
• a first retainer comprising aligned openings in the first and second collars and a bolt passing through the aligned openings;
• and
• a second retainer comprising a detent including a catch formed in one of the protrusion and receiver and a moveable strike formed in the other of the protrusion and receiver;
• wherein to assemble the blade to the receiver, the protrusion is inserted into the blade opening until the second collar abuts the first collar, the bolt is passed through the aligned openings, and the strike is moved into the catch.