Comment on Curtiss-Wright Model CW-25 / AT-9 Jeep by Stephan Scholz

Hello!
Very nice work indeed, this article on the cool Curtiss Wright AT-9!
It´s the most comprehensive source of info that I have found. The only info I haven´t been able to find anywhere are the rates of climb and max. speeds at different altitudes. You wouldn´t happen to have this, would you?
I greatly appreciate your time and attention.
With kind regards,
Stephan