WW1 Aviation on-line learning

I remember one story of the genesis of the “canvas” blurp is an american reporter from the early 1915-1920 era: who ate too much Spam.

Spam was introduced to market (and named) in 1937.

Don’t get hung up on a single word. The dictionary definition of Canvas is a cloth woven from hemp, unbleached flax or cotton. It can be twill or plain weave.
Your beloved Irish Linen for aircraft is a cloth woven from unbleached flax with a plain weave and therefore could be descirbed as a canvas type of cloth. Canvas comes in various grades based on the number of twists in the thread which affects the overall thickness and weight of the cloth, so does aircraft grade Irish Linen. Canvas, its only a word.

Well, I tuned in to the advertisement, and was looking forward to an interesting course. What a great idea. But….ALAS!!! the ‘doctor’ opened his mouth and ruined the whole course. Mainly he spoke of the WWI aircraft made of wood and canvas.
I can see where the BBC keeps talking about “canvas” in reference to WWI airplanes, (I suspect the majority of the writers are talking air heads), but the instructor(?, or simply a mouth piece?) of this course should know better. Unfortunately everything this person says from now on will be suspect.
For those of you who seriously would like to know….the covering of WWI airplanes was/is mainly Irish Linen. I remember one story of the genesis of the “canvas” blurp is an american reporter from the early 1915-1920 era: who ate too much Spam.