Looking at data from today's NS-10 launch, I estimated the acceleration early on in the flight between the 10 and 15 sec marks; from about 43 ft/s to 110 ft/s in 5 seconds, which gives roughly 13.4 ft/sec^2.
The Blue Origin site claims that the New Shepard produces 110,000 lbf of thrust, so
110,000 lbf - m x 32ft/s^2 = m x 13.4 ft/s^2.
Solving for m, I get 77,533 lbs.
That seems light for a fully fueled ship like that...no? Thats only like the legal weight of an 18 wheeler. Is it that light?