# Open water diagram for T500 **URL:** \ **Category:** Thrusters and Motors\ **Tags:** simulate\ **Created:** [March 17, 2025, 4:09pm UTC](https://discuss.bluerobotics.com/t/open-water-diagram-for-t500/19790 "2025-03-17T16:09:52Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![bluba](https://avatars.discourse-cdn.com/v4/letter/b/ed8c4c/32.png) [@bluba](https://discuss.bluerobotics.com/u/bluba)\ **Post date:** [March 17, 2025, 4:09pm UTC](https://discuss.bluerobotics.com/t/open-water-diagram-for-t500/19790/1 "2025-03-17T16:09:52Z")
Hi all, I am doing CFD simulations with an auv that is driven by two T500. Therefore, I need the open water diagram rather than the thrust at zero speed. Is that available somewhere, where I didn’t find it? Alternatively, I would quickly make the simulation with OpenProp. For that I need information on -the profile shape (type or max. thickness/max. camber/position of max. camber), -chord length/pitch/skew/rake All for a couple of radii along the blade. I could extract the information from the 3d file, but it is very tedious. So I hope, that information is already available? =) Best regards from Berlin, Barbara ---
**Author:** ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/18385_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\ **Post date:** [March 17, 2025, 7:29pm UTC](https://discuss.bluerobotics.com/t/open-water-diagram-for-t500/19790/2 "2025-03-17T19:29:16Z")
Hi @bluba - Welcome to the forums! A T500 may be a better choice for an AUV if the nozzle is removed - the standard design is optimized for ROV use (static or low speed thrust.) Blue Robotics has no collected performance data for the non-bollard thrust cases. You can find some detail on the props [on this thread](https://discuss.bluerobotics.com/t/flow-rate-s-for-t200/4117/9), but the 3D cad model _does not_ reflect the true geometry of the propeller, which is considered proprietary. Sorry for the news! Maybe [this](https://www.printables.com/model/917540-m500-weedless-propeller) prop is worth a try? ---
**Author:** ![bluba](https://avatars.discourse-cdn.com/v4/letter/b/ed8c4c/32.png) [@bluba](https://discuss.bluerobotics.com/u/bluba)\ **Post date:** [March 18, 2025, 10:28am UTC](https://discuss.bluerobotics.com/t/open-water-diagram-for-t500/19790/3 "2025-03-18T10:28:32Z")
Hi Tony, thank you for the information. You are right of course, I am actually doing the calculations for an ROV (I come from ship hydrodynamics and are rather new in the field of UVs. I keep mixing up the abbreviations. Sorry! 🙈 ) Would you reveal for which vehicle speed at which resistance the propeller was designed? The pitch angle still seems a little high for our use case. But I will do a quick analysis with an estimated geometry and see where the efficiency lands. Thanks again. And best regards ---
**Author:** ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/18385_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\ **Post date:** [March 18, 2025, 5:41pm UTC](https://discuss.bluerobotics.com/t/open-water-diagram-for-t500/19790/4 "2025-03-18T17:41:46Z")
Hi @bluba Unfortunately Blue Robotics doesn’t have specific data on that. If you take the pitch, and a “reasonable” advance ratio, that should give an idea of the maximum speed. ---
**Author:** ![bluba](https://avatars.discourse-cdn.com/v4/letter/b/ed8c4c/32.png) [@bluba](https://discuss.bluerobotics.com/u/bluba)\ **Post date:** [March 19, 2025, 10:37am UTC](https://discuss.bluerobotics.com/t/open-water-diagram-for-t500/19790/5 "2025-03-19T10:37:16Z")
Alright. Thanks anyhow for the information. =) ---
**Author:** ![JimmyJ](https://avatars.discourse-cdn.com/v4/letter/j/839c29/32.png) [@JimmyJ](https://discuss.bluerobotics.com/u/JimmyJ)\ **Post date:** [August 17, 2026, 4:17pm UTC](https://discuss.bluerobotics.com/t/open-water-diagram-for-t500/19790/6 "2026-08-17T16:17:57Z")
@bluba Bringing this topic back to the topic as I am also trying to find any dynamic performance values for the T500. I am looking to scope my battery size off it and but I am not sure if the static thrust numbers provide an accurate Wattage for dynamic performance analysis. Were you able to find anything relevant you would like to share here or PM?