スピード（秒/ 60deg ）
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I installed this servo on a yak crak 3d Plane.
After 3 flight hours it started to jitter and vibrate.
At 5 flight hours it finished to work. I replaced it with a HTX900
HD1900A is the worst servo than ever!
Overall rating:1 crownvery good centering and qualiy servos for the price. I use them in a small but supped up 70mm Freewing YAK 130 and they work great on every surfacethese were recommended for my Teksumo y somebody on RCGroups forums and they work great, really fast and responsive tooI bought a few of these servos for use on some FT planes I was working on, and just used the last of them this weekend. They are very fast, cheap and hands down a way better value than what I was spending my money on before.Bought 4, one failed. Quality servo cable.hola gente estoy usando uno de estos como servo de cola a 4.8v y funciona mui bien es un buen servo por un buen precio.One out of six was stripped on elevator after a crash. Good servos, order a couple extra.Nice quality smooth servo. I'm using in a durafly vampire and they hold up real well. I'm about to buy more. My new favorite small servo.Smooth, fast, reliable servo...quality good and centers each time without fail...happy I made purchase using it in my 70mm Class EDF jetgot it today.....but it was long time shipment....