This geocache is NOT at the posted coordinates
This geoart is dedicated to an avid Michigan geocacher, planecrazy62.
This geoart consists of 62 geocaches plus one bonus cache. To get the cords for the bonus cache, look for the codes inside select caches of the geoart. There are six codes needed, A B C X Y & Z. Each code is in two different caches to help you.
Bonus Cache N43 39.ABC W084 15.XYZ
This geocache is sponsored by 
2xArcher & Mrs2XArcher & 
kirtlandii
In support of 
Planecrazy62
You must correctly identify the featured aircraft to get the correct set of coordinates. Type in the correct name of the aircraft. Four choices are listed. One of them is the correct one.
This aircraft was a commercial transport aircraft that entered service in 1938. It was the first to offer a pressurized cabin, allowing it to cruise at an altitude of 20,000 ft (6,000 m), well above many weatherdisturbances. The pressure differential was 2.5 psi (17 kPa), so at 14,700 ft (4,480 m) the cabin air pressure was equivalent to an altitude of 8,000 ft (2,440 m). This Model had capacity for a crew of six and 33 passengers. The cabin was nearly 12 ft (3.6 m) across. It was the first land-based aircraft to include a flight engineer as a crew member (several flying boats had included a flight engineer position earlier).
Boeing 299
Boeing 307 Stratoliner
Boeing 314 Clipper
Boeing 333
You can validate your puzzle solution with certitude.