全金属80度Servoless收回集 - 为大机型机翼上反角重达15公斤高品质数控合金servoless收回系统，功能全金属结构精度，可靠性和耐用性，还具有自动切断对电流过大的保护。
One of two retracts died after 3 cycles of open-close. Very dissaponted! Just lucky that it was not died when my octacopter was in the air. It would be veeeery expensive theni Just received the retracts and the first impression is very good, it works without a problem and are very strong.They have no slop at all and are very difficult to stop by hand. I have worked them only on the bench and I have opened - closed more than 20 times without a problem. I use a nimh 6volt battery pack 2300mah with very good results.Their construction is very good and very strong. I will place them on a ESM FOCKE WULF FW190 and after some flights i will post again for the results!!! I think that i will not have any problem but lets see after the maiden!!!!