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KevinSinny
08-06-2020, 08:01 AM
Hello. Iíd like to put my J3C-65 on EDO 1320s or 1400s, but it doesnít look like itís approved per the TCDS. I have not been able to find an STC for those specific floats, even though I know itís been done for years. Also, does the STC (if available) effectively change the aircraft to a J3C-65S? Any help would be greatly appreciated.

BC12D-4-85
08-06-2020, 11:31 AM
TCDS A-691 shows IV. J3C-65 and V. J3C-65S (same except for landing gear [floats - items 151, 206, or 208]). Is there something that prohibits installing floats on the J3C-65 from becoming a J3C-65S? No expert here tho.

Edit: I see there's also some S/N callouts to comply with.

Gary

KevinSinny
08-06-2020, 12:53 PM
TCDS A-691 shows IV. J3C-65 and V. J3C-65S (same except for landing gear [floats - items 151, 206, or 208]). Is there something that prohibits installing floats on the J3C-65 from becoming a J3C-65S? No expert here tho.

Edit: I see there's also some S/N callouts to comply with.

Gary
Thank you, Gary.
I guess Iím getting caught up on the note under Landing Gear and Floats stating that the listed floats are eligible only on those models whose designation ends with ďS,Ē unless otherwise indicated.

BC12D-4-85
08-06-2020, 01:16 PM
I'm sure there's an answer here somewhere.

Gary

skywagon8a
08-06-2020, 01:21 PM
TCDS A-691 shows IV. J3C-65 and V. J3C-65S (same except for landing gear [floats - items 151, 206, or 208]). Is there something that prohibits installing floats on the J3C-65 from becoming a J3C-65S? No expert here tho.

Edit: I see there's also some S/N callouts to comply with.

Gary
That is your answer.

BC12D-4-85
08-06-2020, 01:25 PM
Call Kenmore Air Harbor (http://www.kenmoreairharbor.com/contact-edo.html) and ask about installing EDO floats? Might take some drawings but they are a CAR4(a) plane so flight manuals and supplements may not be required vs later CAR3 types like PA-18's.

Gary

mvivion
08-06-2020, 03:06 PM
Okay, guys, the very same terminology is found in the Super Cub TC. Technically, floats are only legal on the PA-18S model.

As far as anyone I've ever talked to in the FAA, a PA-18 becomes a PA-18S when it goes on floats.

Same thing applies here. No STC required. The floats are called out as approved on the TC.

MTV

irishfield
08-06-2020, 08:40 PM
Approved floats on a J3 though are 1140's... are any others per the type certificate?

BC12D-4-85
08-06-2020, 08:43 PM
For J3C-** floats look here at A-691 (https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/ec36f12e6e139c5b8625785c006c09c8/$FILE/A-691%20Rev%2034.pdf) or J3L A-698 (https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/654cec2e0f108d0a8625720900728d14/$FILE/a-698.pdf) or J3F A-692 (https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/b517fb092ee72c198625720a0055b58a/$FILE/A-692.pdf)

Gary

KevinSinny
08-07-2020, 04:46 PM
Thank you for all of the helpful information!