BertKu's Recent Activity
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BertKu replied to the thread A strange question.
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 -
BertKu liked fallguy's post in the thread A strange question.
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 -
BertKu replied to the thread A strange question.
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 -
BertKu replied to the thread A strange question.
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 -
BertKu replied to the thread A strange question.
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 -
BertKu replied to the thread A strange question.
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 -
BertKu replied to the thread A strange question.
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 -
BertKu replied to the thread A strange question.
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 -
BertKu attached a file to the thread A strange question.
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