No, my drawing would be quite awful either way. With a picture for reference, it might be more "accurate" in the sense of discrete details, like say it has two

No, my drawing would be quite awful either way. With a picture for reference, it might be more "accurate" in the sense of discrete details, like say it has two blades while my imagined one had four, but I wouldn't be any better at drawing the relative dimensions or shape. In this scenario, I happened to visualize (rather accurately, after checking) an AH-64. Not some abstract helicopter concept.