I need some help on determining the maximum height of spray coming from a nozzle. So far I havent seen charts that show this information and so it seems as if perhaps a bit of math may be necessary. I have to redo and rethink an install design where there are a number of fruit trees within a lawn area that will be irrigated. Problem being is that the owners dont want all of the fruit blossoms knocked off from the spray. The bottom branches of these trees are about six feet high, and my original plan called for I-20 heads with standard nozzles. The largest I-20 nozzles used would be 3.0s @ 50 psi to cover several 38 radiuses, and the trajectories from these standard nozzles are 25 degrees. With a little trig, I see that a straight line at 25 degrees extending out to 38 would reach a height of almost 18 feet, but of course at some point along that line the water drops back down and that maximum height is never reached. So you calculus experts, can you figure this? Whats the formula? The low angle nozzles have 13 degree trajectories, and I may have to go with them, but because of the limited nozzle set available and because of the nature of the layout, these would complicate the design work... but perhaps not quite as much as going with a gazillion fixed spray heads.