Yes. Both the Brodak Jr. Flite Streak and the Flite Streak are as George designed them. I've seen various copies of George's plans and I have his proof set of the plans for the Brodak Flite Streaks. I've also built both Brodak Flite Streak kits. The Lightening Streak is a knock off (not a criticism).

Sorry I misread your question. I don't think either is real close. I think one is smaller and the other is larger. What engine are you thinking about using?