"I don't understand the requirement for 6-7 hours flight time : did you fly for 6 hours when para-sailing ? And if the plane can be launched from a boat, can't 1 hour be sufficient to observe the fishes ?"
"You will not do flights for hours over water for 2k unless you have some experience and already have kit. It takes a lot of time and effort as well. Start with 1-2 hours. Plenty of fav plane options in your budget. Time will be the factor--I hope…"
"TAM was difficult to build because it had to weigh less than 5kg. If a model is allowed to weigh more, it becomes much easier. Shortcomings can be compensated with a larger fuel tank. Easy ... but it will not weigh 5kg. :D
Flitetest FT SEA DUCK…"
"Back in 2011 I did a lot of beach flights using a gooo ol' Skywalker and APM (and the APM software was tremendously more primitive back then). I flew in wind that made landings almost stationary, flew it overloaded, unbalanced, you name…"
"We did some experiments with polarized cameras on the TV Show DRONED for the science channel. I don't think the full versions are available to stream or download yet, but the Episodes were called Waterworld and Swimming with Sharks.
"You should just go with an hour or two.
If a glider will work that would stay up longer. The wind usually blows into the beach. You don't want to get downwind with it.
Flying wing electric would be great for at least an hour maybe two…"
"We have an electric helicopter, Auto pilot, GPS. Air Sonar, Radiometric LW Infrared and Visible Cameras, 8 rotors counter rotating and we have flow it for 45 minutes and are working on 1.5 hours. www.infraredcamerasinc.com
We built it out of…"
"Good luck to you too!
I've read many times on these forums that solar panels cause more weight/drag and actually don't help the flight time because they don't create enough power to make it worth it. The cons outweigh the…"
"True. If your only looking looking for a 6-7 hour flght (still very long) you could probably loose some of the gas tank in order to free up space for cameras gimbles and other bells and whistles. I guess the TAM proves that extremely long sustained…"