The little guy is a Flight Hobbies Stage 50 with a YS 63 up front. Great flying plane. Would make a perfect entry level air frame. To bad it is no longer in production.
The big one is a 2M Twister with a YS 160DZ for power. I found out the 170DZ CDI back plate is a direct bolt in so it will get converted to a sparky in the near future.
Ken