Originally Posted by
dera
This was the first video that came out. And due to the pivotal angle, it's easier to see in this video how drastic that V/S was at touchdown.
4 seconds from threshold to touchdown is average 12.5fps. The vertical rate seems to increase as the nose drops closer to touchdown, and the right roll movement will increase the load on the landing gear.
I wouldn't be surprised if they find figures closer to 20fps on the RMLG at touchdown.
Looks like I was pretty damn close to actual values. 18.6fps Touchdown, add a little more because of the ongoing right roll so probably bang on the money at 20fps for the RMLG. And no flare whatsoever to arrest the sink, touchdown at 1 degrees pitch up, where it had been for the last few seconds of the flight. (per the TSB, normal is between 3 and 8 degrees).
For the CRJ guys, is VREF+5 really the correct speed? You don't add a gust factor?