Hello everyone. I know that modern day blimps use balloonets (Sorry if I misspelled that) to land by adding air to the main envelope, thus displacing lighter than air helium with air. And they can also simply direct the force of the propellers upward (This includes elevator flaps). And you can always vent helium, but that is an incredible waste of money. Other than these ways I listed, what are some other ways that dirigibles could land while remaining independent of the ground? Thank you for viewing!