BertKu's Recent Activity

Thank you Fallguy, Yes I still have to finish the propellers off. I will grind it during balancing. Thanks, pleased to read, I don't...

Mar 7, 2021 at 10:12 AM

Well, I would not worry about 5mm for low speeds. I assumed your question was geared more toward wave effects and such. The 5mm error...

Mar 7, 2021 at 10:08 AM

Fallquy and all others. I still haven't received a reply whether the two propellers must be parallel. pointing towards inside or other...

Mar 7, 2021 at 9:07 AM

Hi Fallguy, You probably totally right. But probably not at the speed I am going, below 5 knots. I hope I understand you properly, you...

Mar 7, 2021 at 8:49 AM

Gonzo, If you wonder how I balance the prop and check the pop, it is very simple. I have a two point system where between the propeller...

Mar 7, 2021 at 4:32 AM

Hi Gonzo, actual I should have a variable pitch/size propeller, then one can adjust the pitch and the size to the rpm of the motor. But...

Mar 3, 2021 at 7:07 AM

Gonzo, my problem is that Diesel and Petrol engines has a narrower area of torque in the rpm range. While a brushless motor is the...

Mar 3, 2021 at 1:18 AM

Hi Gonzo, No, it does not make sense for me to buy lots of propellers and try to see whether I will go 1/10 knots faster or slower. It...

Mar 2, 2021 at 12:25 PM

Hi Keith, here the photo of the 90 degrees bevel gears I made. They are from 316 Stainless steel and in closed with gearbox oil. Also my...

Mar 2, 2021 at 9:32 AM