Slightly off topic, but a couple of little things that would improve game play include 1) when a helicopter has finished getting fixed in the repair base, the icon on top should be a helo, not an airplane and 2)The helicopter fuel station needs the same feature added as the normal fuel station so that you can cancel the production (at a cost) and start again.You wouldn't believe me, but I thought the same thing the other day.
Wait a few more updates, please, we have an idea that you'll like.
I do like the randomness of the required items for helo flights but it’s impossible to keep track of what you have in the warehouse. A little number on the item picture advising of the numbers you have in stock would be fantastic.