# Russian­­­­͏­­­

**URL:** https://foil.zone/t/russian/21063
**Category:** Builds
**Created:** [June 25, 2024, 7:12pm UTC](https://foil.zone/t/russian/21063 "2024-06-25T19:12:06Z")
**Posts on this page:** 1
**Showing post:** 33

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### Author: ![Pavel](https://foil.zone/user_avatar/foil.zone/pavel/32/34032_2.png) [@Pavel](https://foil.zone/u/Pavel)
#### Post date: [July 31, 2024, 4:40am UTC](https://foil.zone/t/russian/21063/33 "2024-07-31T04:40:26Z")

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Had a super long day today! Charged the battery to 87% and rode for 2 hours and 45 minutes. Ended with the battery at 28%. Now I’ve got some serious foil skills and can ride for ages without crashing. So tired but got tons of data!

Here’s what I learned: max power use is 1400W at 23A against strong winds and 1250W at 20A without wind. For cruising, I’m usually at 1000W and 17A.

Swapped my ESC from a 75200 to a much smaller 75100.

 ![IMG_6680](https://foil.zone/uploads/default/original/3X/4/0/40dd4b66394c4d55f575ec2200db218e5a2a3ddb.jpeg)

Not sure why everyone recommends more powerful ESCs. Maybe they have smaller boards and foils. I could probably go even smaller, like a 7550, since my big board and foil need less power to glide and take off.

My water cooling broke, so I rode without it. Max MOSFET temp hit 38°C when my prop and foil got tangled in weeds, pulling max current of 40A. Normally, temps stayed between 30-36°C and dropped to 27°C when I landed on water. So, turns out I don’t need water cooling on a water-cooled ESC in a waterproof case because it’s massive and dissipates heat well on its own. Plus, the ESC doesn’t generate much heat at that current.

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