This quiz may be my oddest yet because of the somewhat personal link information. I have thought about this sole aircraft for many years.

Only one of this exact model twin engine mostly metal, certificated sleek aircraft was ever built. It was refined/redesigned by a famous aircraft designer who was then living in the same State and County as the aircraft's hangar. The aircraft sole prototype still exists and is in registration. No production ensued. I had the pleasure of first seeing this aircraft outside its lone airport aircraft hangar in early 1967. It has intrigued me ever since.

Last summer we attended the wedding and reception dinner dance of my professional plumber friend and bride in and about that same hangar no longer with a taxiway to an airport, but in its same original location now separated by the airport fence. The huge Quonset Hut-like construction metal hangar building is now used as an events rental with kitchen facilities, extensive tables and seating, dance floor, toilets, an elevated stage and outdoor grass seating area with portable chairs in good weather where the wedding ceremony was held.

1a. Aircraft manufacturer name?, 1b. Full aircraft name/nomenclature?

2. Famous aircraft designer who tweaked the design?

3a. Engines make and model?, 3b. Horsepower each?

4. Current aircraft registry nomenclature?

5. Bonus for the adjacent airport name, designator?