| Ronald Thomas|
Gainesville, Fl, USA
My Posts: All Forum Topic
I have found the Goblin to be a very quiet machine. Over the last 25 flights or so it started to get louder. Overall sound was louder in the air and the tail sounded like it was making noise on spool up. I checked over the heli (so I thought I did a good job) and kept flying.
One day two weeks ago I went to fly. I spooled up, flew for 2 minutes and then the HS dropped to about half. I thought I had over amped the ESC or I had a cell die in a battery because it was so sudden. I landed and flew the 130 and put the Goblin to the side. I got in a rush and forgot to check the heli then.....mistake as I out it on the wall and forgot about it when the busy week came around.
So a couple of days go by and I am ready to fly again, I charge (8) 6s packs, and head to the field. I do a preflight check and remembered I had that shut down. I looked it over and didn't immediately see anything wrong like a shorted motor lead or bad solder joint (usual suspects in these situations when an over amp is not the issue). I figure I better at least spool it up to see if there are any issues. I spool it up, it is LOUD, I immediately kill it and take it back to the pits. At this point I AM going to find the issue!!!
I start looking for something electrical and then I moved on to mechanical. I looked at the belts from the edge.....they look good. I looked at the other nuts and bolts....they all look great. At this point I am upset so I start taking the heli apart and looky at what I find!
Turns out I had a bad main drive belt for a WHILE and didn't notice it! I realized it is extremely hard to see the belt teeth if you don't look closely.
I replaced both belts (the tail belt as a precaution) and she is like brand new again
Moral to the story, CHECK YOUR HELIS THOROUGHLY when you have an issue....I got luck this time, I may not be next time
Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!