There are four different observation aircraft here in the hanger. On the far left and center with high single wings and double wing struts are two Douglas O-46 - the tail of a third is on the far right. Four Curtis O-52 Owls have high single wings and single wing struts. A single Douglas O-38 Biplane is on the left against the far wall of the hanger. The North American O-47A is in the center with the low wing and large canopy.