The Edo 2425 float was the original float approved for the 1st Cessna 180's in 1953.
It turned out to be horribly under floated.
I flew an Aeronca Sedan w/0360 in Labrador in late 70's, that had a set of Edo 2425's on it, and it worked wonderful with BIG loads. Much safer when turning around in winds over 15mph, than any Sedan on Edo 2000's.
The 2425 have the same fluted bottom design as lots of early Edos (Guess this is why Aeroset copyed them) which is much easierto get "on the step" than a flat bottom with a booster. I bet they will work alright, on a heavy Cub/ Cruiser? Pete makes a great point about the extra weight. But that's not the whole story. Case n Point:
Early 60's Champion GCB approved on PK
1800's , weight 195 lbs. Later on mid 60's Citabria approved on Edo 2000's, weight
265lbs. So this is a similar comparison being close to same weight differential your going to be looking at; approximately 70 lbs more.
Here is how they really stack up: The performance of the two floats, under similar weight/HP aircraft, was 'very similar' lightly loaded, However with a full load, the Edo 2000's even though heavier, they displaced the aft weight, so much better, there is a big difference in how they will both come up on the step. The 2000's work way better. Combined with the fact PK 1800's should have been data taged 1700's as they have a lot more in common with a 1650 Edo than a 2000.
The 1800's are very tippy loaded: and will bury a float x-wind, in even lite whitecaps.
A well known member on here "Oli Built"
had some similar sized floats to 2425's on his 180hp Super Cub. Maybe he will chime in on his view on larger than normal floats on an 18.
Since you have the HP to haul them, I can't see why the Cub wing, wouldnt lift them a heck of a lot better, than a smaller Stinson wing would! Lol
Good Luck with the floats. (This is the very reason Eddie Peck builds the 2250's)
E
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