Seamaster Water Bomber
scale_4_me_only
It holds approx. 16 ozs of water when full.
When flying I can tell that the tank is full but I am not doing any high G manoeuvers during this period. The "drop" is viewable but you do not get the huge water ball that you see from the real thing. On a calm day with glassy water you leave a very visible trail and I have tried to "hit" certain spots (floating logs etc) with great success.
It is a lot of fun and you will enjoy yours for sure! It is well worth the effort of the install & setup.
Do you have any pics of the 415?