Oh, jeez, the Eaglet! How could I forget that one?! The Eaglet is a great trainer; fairly lightly built, yet sturdy. They were popular in my club when I first tried R/C as a kid 'bout 20 years ago. It should still be available, albeit not carried by Tower, etc. Goldberg had another , more cessna-like .25 size trainer called the Freedom, too. Here's a link:
http://www.carlgoldbergproducts.com/basic_trainer.htm