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- Jul 14, 2017
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OK, I was balancing 3 sets of new props today, 6 pairs of silver and black, P4P quick disconnect type. First thing that I did was to weigh each prop, placing them next to the best match of the same color ring as I weighed them.
What I found was surprising! The lightest prop was 11.0 grams (Silver blade) but the heaviest was 11.59 grams (black blade). That is quite a difference.
I found that adding tape to the light blade, for balance, the two props became closer to the same weight with each pair. Making paired sets, Silver and Black, I managed to get the individual pairs within .13 grams of each other in the end.
I thought about sanding off some meat on the heaviest one, but since the match was within .13 grams, I thought it was not necessary and might be worse in the end, removing plastic.
So, what do you think? Does it matter that none of the new props from their pair cases, matched by weight, makes me wonder about whether this could influence crack formation, due to imbalance both in spin balance and actual weight.
By matching them as close as possible, you can get them nearly balanced, weight wise. Maybe with 5-6 pairs, you could find very close matches, but maybe not.
After balance, there was still the .59 difference overall between the 6 pairs of blades. Seems rather high to me, over half a gram, but of course maybe the motor controller would just compensate.
What I found was surprising! The lightest prop was 11.0 grams (Silver blade) but the heaviest was 11.59 grams (black blade). That is quite a difference.
I found that adding tape to the light blade, for balance, the two props became closer to the same weight with each pair. Making paired sets, Silver and Black, I managed to get the individual pairs within .13 grams of each other in the end.
I thought about sanding off some meat on the heaviest one, but since the match was within .13 grams, I thought it was not necessary and might be worse in the end, removing plastic.
So, what do you think? Does it matter that none of the new props from their pair cases, matched by weight, makes me wonder about whether this could influence crack formation, due to imbalance both in spin balance and actual weight.
By matching them as close as possible, you can get them nearly balanced, weight wise. Maybe with 5-6 pairs, you could find very close matches, but maybe not.
After balance, there was still the .59 difference overall between the 6 pairs of blades. Seems rather high to me, over half a gram, but of course maybe the motor controller would just compensate.