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What is the purpose of those aluminum canopies? Are they more secure?
This is true, but not the entire story. Aluminium tubing is not as rigid as steel, so they have to use comparatively thicker section than you would to achieve the same strength with steel. So in the end it works out pretty close. I did the sums for my canopy and the aluminium frame was only 8-10kg lighter than the steel. The saving would be even less on a canopy like yours (with a conventional horizontal half door at the rear) as you don't have all the framing and bracing that allows me to mount the spare on the door at the rear.ThysdJ wrote:As a matter of fact, steel is about 2.5 times more dense than aluminium, thus much heavier
now start working with thin wall steel tubing. and gussets to strengthen the corners ....niclemaitre wrote:This is true, but not the entire story. Aluminium tubing is not as rigid as steel, so they have to use comparatively thicker section than you would to achieve the same strength with steel. So in the end it works out pretty close. I did the sums for my canopy and the aluminium frame was only 8-10kg lighter than the steel. The saving would be even less on a canopy like yours (with a conventional horizontal half door at the rear) as you don't have all the framing and bracing that allows me to mount the spare on the door at the rear.ThysdJ wrote:As a matter of fact, steel is about 2.5 times more dense than aluminium, thus much heavier