SYMPATHY PURCHASE!!! I think those are the best kind. The F-27 is kind of like a flying wing right? almost I mean, similar shape? Have you checked out Megatech's Megastealth II? They say it can go 60mph+, but also slower (if your dad wants to try, rather if you want to let him try lol). It looks pretty cool and seems a similar shape to what you've been flying with the stryker. Just throwin ideas out on somethin I saw, good luck.

Megastealth II on Megatech's web site ---> http://www.megatech.com/product_deta...ft.php?ID=9901

~A.C.