Having a second thought on how we positioned the floats on our amateur built plane and maybe we just goofed. Anyone got a formula for centre of buoyancy that I can compare to what we used and wondering how critical an inch one way or the other is? Yes I'm up to speed on the other calculations.
Thanks

Question ???? Should he have extended the gear?

Oh my, it's a different plane with the bottoms waxed. Got off much shorter and slower takeoff too.
All rigging is square etc.
Amateur built amphib with 2705's'
Bottoms are no hell and addressing the creases might be next move but right now I'm very happy.

My floats have creases on the bottom and patches - been around before me. It should leap off the water but it is very sticky and getting up to speed where it will fly is excessive. Has anyone tried waxing the bottoms? I just did mine and will fly tomorrow but wondering if anyone out there uses this ...

Crazy but it happened. I know someone who landed his amphib Beaver on water with the wheels down and he just taxied to the dock for fuel. Not sure how he was able to take off, lol.
True story.

Soooo, an accountable executive can't even take a holiday?

Tell me more - my aircraft was/is a tail dragger.

FYI - there are two types of 1650 floats. Careful. 1650 & 1650A and they are different. Spreader bars have different spacing.

I hate to harp on this topic but as mentioned by others there are surprises and just think about what you are attempting to do and if it is necessary close to the ground.

https://www.youtube.com/watch?v=W6wqERKBTKM

On previous post we got off topic and discussed slipping with flaps. I argued, no. There was support to slip, and why not because the aircraft had to demonstrate it for certification, hmmmm. Well here is a link that tells you why not. I experienced the same thing in a 170 and if I was 100 feet lower...

We put a restrictor in the line and the pulsing is gone, whew.

digits - can do no problem

Thanks for that info.

Well we recently put new lifters in and changed oil, but we are now going at the pressure relief valve and governor and ..... Decided a wet line might not tell us anything right now until we trouble shoot some more.

Dynon EMS-D120

However a wet line has lots of dampening so might not show the problem.

digits,
Well that is a good idea. Maybe just throw out the digital. I've never seen a wet gauge fluctuate.
Thanks will do as suggested

Yes, dammm it, lol. I do hate this system, but the future. However last week we (more trouble shooting on another prob), checked play in throttle cable and there was about 1/4" play Then noticed carburetor full throttle went past carb stop and we took carb apart to see if more than full throttle had...

Constant speed prop. Have very slight movement (noticeable) in mp and rpm.

I'm an analog not digital guy but got talked into a glass panel in my amateur built amphib. Is it common to have the digital oil pressure gauge fluctuating up to 8 psi? Everything else normal.

Thanks to all with answers. This, even after 60 years of doing this has always been on my mind. So now I wait for a CADORS, lol.

Oops, the beginning of the runway, lol.

Curious if there is a regulation where you can or can't join a base leg. Does it always have to be before the end of the runway? Could it be half way down a long runway?

Thanks Hornblower. I wasn't baiting a Transport reply and yours is exactly what I was looking for. Wonder if there are others out there doing it?