I bought a pair of Hangar 9 floats just before they were discontinued, finally got around to attaching them to my 1/4 scale Hangar 9 J-3 Cub. Took it to my pond to do a float test and they failed! Both sides leak! After the first test I took the plane back to my shop and sealed the rudder to float attachment with J-B Weld and looked for and sealed any and all pin holes I found on the bottoms. Took back to the pond and failed again. There must be a hair line crack in a seam somewhere. Looking for suggestions.
No the floats were not dropped or struck by any object,,,fresh out of the box and onto the plane.
