Floatplane takes off from trailer pulled by truck
 

DHC used a simple wheeled cart (dolly) for takeoffs of float-equipped Beavers from its Downsview plant.

I would be impressed if they landed that way too(!) :}

ASES

nah ...just land them on the grass!

DHC used a simple wheeled cart (dolly) for takeoffs of float-equipped Beavers from it
 

True, until one day when an empty trolley wiped out Phil Garret's car!

Thereafter they put hydraulic brakes on the cart, activated by a spring loaded lever that released when the Beaver lifted off.