Hi.  I'm not a real life pilot but I have been on a sea plane (float plane) twice as a passenger in real life with takeoff/landing in the ocean. Anyways, I am testing out the Cessna 172 float plane in MSFS.  So I have not modified any of the weights at all on the default Cessna 172 float plane.  Also, for weather, instead of using live weather, I am using a "Few Clouds" but no wind is set at all.  Thus, when I spawn, the waves are generally calm.  And I have not modified any of the weights or fuel for the Cessna 172 float plane.  On take off, as I approach 40 knots, the Cessna 172 float plane will start to bounce up and then fall back down, like I hit a big wave or something.  But the waters are actually calm.  It's almost like I'm riding a roller coaster.  The bouncing gets worse and worse, and higher and higher, after 40 knots, and I am trying to get to around 60 knots to take off.  At some point, it feels like I am on a roller coaster.  I am not pulling back on the stick or pushing it down either, I have not idea why it bounces so much.

On landing, I am landing at round 65 knots. Again, when I make contact with the water (and the waters are calm with virtually no wind), it bounces up and down like a roller coaster, as if I hit a big wave, but the waters are actually calm.

Being on a sea plane before as a passenger, I don't recall bouncing up and down that extreme.  The amount and severity of the bouncing up and down I experience in MSFS in the Cessna 172 float plane, I would think it would damage the plane.  It's been a while since I was a passenger on a sea plane so I went to look up a video of a float plane taking off and landing in similar calm water conditions:  In this video, the float plane does not bounce up and down that severely too.

Am I doing something wrong on take off and landing in the Cessna 172 float plane?  Maybe someone with real life flying experience could give me a hint on why I am bouncing up and down so much in MSFS on the Cessna 172 float plane.  Or perhaps MSFS hasn't modelled the physics of takeoff/landing for float planes well enough yet.

 

 

Edited July 30, 20214 yr by charliearon
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Never been in a real one. 

I tried the 172 and the Cub from Sausalito (in the fog of course, as I didn't know 🤦‍♂️...) and flew over the City. 

Wind 6 at 31°. The take off and landing can be a little rough but the feeling is that my inexperience was at play. But no real roller coaster. I tried to put the aircraft on the step, with I think, some success (delusion ?).

First feeling, I insist on the first, is that it more convincing than the A2A Cub on floats in P3D and worth a try. 

Be sure to take off into the wind, to respect flaps, rudder and gear positions. Don't try to pull the aircraft off the water with the stick.

The water rudders work not so well on the 172.

 

 

I too have noticed the bouncing of the C172 once airspeed gets to around 40 and above. My cub amphibian doesn't bounce nearly as much.