bombs disappear

I have been flying the PBY that I downloaded from www.vf15-flyingaces.com. Great plane once I reread the instructions and found it needed wep to make a water takeoff. Also increased pitch stability by 4 to make it feel like a "heavy" to me. But when I try to drop bombs, they disappear instantly, never to be seen again with no impacts on the ground at all. Am I missing something? Never had another plane do this. Tried changing to different bombs but got the same result. One more question: Did the PBY carry its bombs internally as in this model? Seems to me the hull has to be watertight with the bombs maybe on wing mounts. So far I haven't found a photo of a PBY with wing mounts but I still have about 20 episodes of "Victory At Sea" to review.
Jimski
Jimski