There are lots of planes that will do over 100 mph... in fact, most sport planes will hit 100 if you put a big enough engine and the right prop on them...
For jet training you need something faster... Like Midnitedew said, the Predator (or any other Quickee for that matter) would make a good start, but it is not fast enough for jet training on a stock .46 sport engine IMO... maybe if you called mister Jett for a nice hot Jett .50...?
If you don't like the Predator, read through this forum a little... there are plenty of speed planes, and even more planes that can easily be made into speed planes with some mods (read big ***** engines...
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DDust... Whip... Magnum... Shrike... hell, even Patriots, F-20's, Mustangs count with enough power up front... take your pick...
Who told you "one of the fastest planes" and "100mph"?
I don't call 100mph fast... if I have to put a number on it, "fast" starts at 130-140mph or something like that (depending somewhat on the size of the plane of course)...