Nathan, William, and Kevin have made a lot of progress on the 1.7 update. I've been mostly working on SR2, so I pop in every once in a while to check things out. I'm starting to get excited about this update, so I had to share this screenshot showing one of the new features: part damage. Now it's fun to get shot up in SimplePlanes.
Credit goes to @F104Deathtrap for that awesome B-26B bomber.
Edit: We are hoping to release the 1.7 update late this month / early next month.