Abstract: An embodiment aircraft boom includes a boom member, a vertical stabilizer, a rear landing gear, and a front landing gear. The boom member may extend in a first direction and have a front internal structural member disposed therein, where a portion of the front internal structural member is a first attachment point for a first wing. The vertical stabilizer may extend from the boom member, where the vertical stabilizer has a rear internal structural member disposed therein and extends from the boom member and through an interior of the vertical stabilizer, and where a portion of the rear internal structural member is a second attachment point for a second wing. The rear landing gear may be coupled to the rear internal structural member. The front landing gear may be coupled to the front internal structural member of the boom member.

Abstract: A propeller locking mechanism for an aircraft includes a mounting ring having a locking extension with an aperture. A solenoid is configured with a solenoid pin which interacts with a first arm of a lever. The lever includes a pivotable second arm configured with a spring and locking pin. The second arm is able to pivot and insert the locking pin into the aperture of the locking extension on the mounting ring. The spring biases the locking pin in the locked orientation. Upon sufficient motor torque, the spring force is overcome allowing the locking pin to be removed from the aperture and the mounting ring to be unlocked.