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Airbus 320 has a best rate of glide speed of 130 knots (150 mph). Capt. Sully Sullenberger recalled “having the Green Dot” meaning he thought he had 130k, actually he was about 15k below that (115kts,FDR did not record beyond that #)
The impact with the water had ripped open a hole in the underside of the airplane and twisted the fuselage, causing cargo doors to pop open and filling the plane with water from the rear.

From the NTSB report :

The investigation determined that the airplane
’s descent rate at the time it impacted the
water was 12.5 fps, more than three times the descent rate of 3.5 fps assumed during ditching certification, resulting in external pressures on the aft fuselage,primarily from FR55 to FR70,which significantly exceeded the values
established to demonstrate compliance with the
certification criteria. These external pressures were sufficient to cause the large-scale collapse and failure of the aft fuselage frames, cargo floor, and passenger floor struts and to initiate cracking of the lower fuselage skin, allowing water to enter the airplane. Further, the water
ingress and continued forward motion of the airplane through the water resulted in postimpact pressures and suction forces that caused additional damage, including the failure of the lower fuselage skin panel and aft pressure bulkhead.
Therefore, the NTSB concludes that the airframe damage was caused by the high-energy impact at the aft fuselage and the ensuing forward motion of the airplane through the water.

Look at the pictures of the aircraft after it was recovered lots of holes, BTW when the Cargo doors came open, baggage was everywhere, some were recovered weeks after.

OK. But I still think the pilots scenario is a possibility. Why? Because it was several days to maybe two weeks before the search started at the southern end of the arc they think the plane flew on. Had the plane dropped like a rock and hit the ocean at a relatively high speed I agree it would have broken up like the Air France plane a couple of years ago and there would have been much aircraft debris that would have continued to float for a long time. On the other hand, if it landed in a controlled circumstance, as the pilot explained to me, and there were only cargo door popped open but the plane did not disintegrate and break apart, I think it would be likely that typical suitcases and such filled with clothes would get waterlogged relatively quickly and sink to the bottom of the ocean possibly before the search planes began searching that area. Also if the only parts that might have been torn off the aircraft were relatively small, it is quite possible that searchers could have missed it. I mean, I have sailed the oceans when I was in the navy and as a civilian I've flown over all of them except the Arctic and Antarctic and they are unimaginably large and desolate. I'm not saying this is what happened only that it is a possibility.

Another thing, Sully Sullenberger landed that plane with an upward Angle of Attack of, I'm guessing, between 5 and 10 degrees. In the pilots scenario MH370 would have contacted the water with a slightly nose down angle, maybe that changes the dynamics and would dissipate the energy of the crash in such a way that the cargo doors would not pop open. I don't know but just about anything at this point seems to be possibility, well except for Don Lemon’s black hole theory. Maybe we could get Jesse Ventura to do another episode of “Conspiracy Theory” where I am sure he would claim it was George Bush and Dick Cheney's fault when they were playing around with their HARP weather controlling machine. You know the machine GWB used to steer Hurricane Katrina towards New Orleans, according to Spike Lee, I think. LOL