I ordered a set of props from aliexpress 22x10 mainly to see difference in the ones openppg offers.
The hub of the props are quite a bit larger, prop in general is thicker and beefier then the gemfan. Most likely will see some difference in flight. I will try them out soon. I will have to drill down the hub as I don’t think the prop mounting bolt threads will be long enough to go through this hub.
The openppg gemfan weights 75 grams, aliexpress prop weights 113. Im thinking these props will take more abuse then the gemfan as they seem significantly stronger. Smoother finish as well.