1/3/22 Rough Dimension Generation for Boom arm
Colin Szeto
Boom arm horizontal - the extended length of the linear actuator is 523.634 mm (20.61551181 in)
381.00 mm (15 in )is the length of the actuator when the boom arm is deployed
https://transmotec.com/product/DLA-12-10-A-150-HS2-IP65/
Possible linear actuator