"I assume then that you replace the pitot tube each water landing."

"May I ask how you water proof the pitot tube/airspeed sensor? Also if the plane is sealed what do you do about the barometer maintain correct altitude?"

"Ah, It all makes sense now. What voltage"

"Look into the Lynx by Swift Radioplanes: www.SRP.aero 3 hour endurance for a hand launch drone! plus durable Kevlar construction"

"@Georacer Ah ok. So then would varying inner diameters and tube length affect readings? I imagine so, but to what extent. The common digital airspeed sensor changes diameters twice (pitot tube ID -> flexible hosing ID -> board sensor ID)"

"Quick question: would the inside surface of a pitot tube affect readings? For example, a printed pitot tube (depending on print orientation) would be rough from the layer resolution."

"Try Swift Tag in the future. It handles cam/photo mismatch scenarios and adds additional features.   http://swiftradioplanes.com/swifttag/"

"Hi I created it http://xyz.uz.ua/blog/9-sozdanie-bpla-dlya-tselej-fotogrammetrii (in russian language) clone RQ-20a))))"

"dangerous hand launch (prop location) and low wind tolerance for parachute landing. "