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Goblin 280 SAB Heli Division - Goblin 280 Helicopters


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Old 09-06-2019, 03:26 AM   #1 (permalink)
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Default Do any of the 280 Goblins have a one way fitted

Im woundering if any of the goblin 280's have a one way bearing fitted,my reason is if fitted it may save the gear train in A crash if a hit hold,many thank's,
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Old 09-06-2019, 04:44 AM   #2 (permalink)
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No gear drive on the 280, it is direct drive with the belt fitted on the motor.
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Old 09-06-2019, 06:53 AM   #3 (permalink)
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Does make you wonder why they couldn't incorporate it in.
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Old 09-06-2019, 09:11 AM   #4 (permalink)
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Does make you wonder why they couldn't incorporate it in.
The 280 is heavy enough?
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Old 09-06-2019, 09:19 AM   #5 (permalink)
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Does make you wonder why they couldn't incorporate it in.
More weight and complexity for no real benefit. As noted above, It's already very heavy for a 280
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Old 09-06-2019, 09:40 AM   #6 (permalink)
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Originally Posted by Grumpy_Old_Man View Post
More weight and complexity for no real benefit. As noted above, It's already very heavy for a 280
Maybe Grumpy, my thinking was to put it in where the current coupling is. But like you say there's probably mot much benefit to it with the extra weight albeit minimal. I don't really know a great deal about it but from my understanding is the one way is for auto's, correct? And I think these size helis don't carry enough momentum for autos (although I assume low height is possible) or is it rotor diameter that plays the bigger part?



https://www.modelhelicopters.co.uk/m...r-assembly.jpg
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Old 09-06-2019, 09:47 AM   #7 (permalink)
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Crank up the headspeed and it is a fun heli
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Old 09-06-2019, 10:06 AM   #8 (permalink)
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If people canít fix the tail wag, there is no need to crank up the head speed.
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Old 09-06-2019, 10:36 AM   #9 (permalink)
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If people canít fix the tail wag, there is no need to crank up the head speed.
That was the problem my friend had, he got disillusioned and sold it in the end.
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Old 09-06-2019, 10:39 AM   #10 (permalink)
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my understanding is the one way is for auto's, correct? And I think these size helis don't carry enough momentum for autos (although I assume low height is possible) or is it rotor diameter that plays the bigger part?
Yes, mainly for autos but you couldn't really auto the 280 anyway. The tail rotor wouldn't be driven because the belt goes directly around the motor, so you would have to rudder control. Plus as you say, it's too small to auto anyway.
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Old 09-06-2019, 11:31 AM   #11 (permalink)
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Bobby Watts, Mini Comet Autorotation? (4 min 9 sec)
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Old 09-06-2019, 12:00 PM   #12 (permalink)
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so it does auto then I still wouldn't like to try it.
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Old 09-09-2019, 03:08 PM   #13 (permalink)
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Quote:
Originally Posted by Grumpy_Old_Man View Post
so it does auto then I still wouldn't like to try it.
You have to be really into auto rotations to even consider trying one with a mini comet. Im with you in not trying it! Lol
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Old 09-10-2019, 08:15 AM   #14 (permalink)
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I've had about 10 flights on my Havok 280, aside from the Kraken which I've not seen in real, the quality, fit & finish is way above all my other fleet of Goblins but somehow I don't like the way it flies, one feels that it's heavy does not float enough. Perhaps a blade with wider cord would help.
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Old 10-25-2019, 12:32 AM   #15 (permalink)
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Crank up the headspeed and it is a fun heli
I agree completely I am having a blast with mine I got the red comp. it screems at 4500 and flies well at lowe head speeds. i knew someone would comment about autos. I think there mostly for larger helis. i dont thik this wee bird would need to auto. I can probably shut down before landing so the head speed slows down a bit but so far im in it for a bunch of flights and 0 issues other then it keeps getting cloudy and i cant enjoy the nice red finish
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Old 10-25-2019, 12:34 AM   #16 (permalink)
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I've had about 10 flights on my Havok 280, aside from the Kraken which I've not seen in real, the quality, fit & finish is way above all my other fleet of Goblins but somehow I don't like the way it flies, one feels that it's heavy does not float enough. Perhaps a blade with wider cord would help.
I thought about that to. th blade for my 230s is cheap plastic but has a much longer cord. what other blaes would fit? the 230 is way shorter
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Old 10-25-2019, 12:39 AM   #17 (permalink)
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about cutting off 20 mm off my cheap walkera 450 blaes there 300mm haveto seal up the tips and precision balance
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Old 10-25-2019, 08:44 AM   #18 (permalink)
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I flew a Fireball a few times that belongs to a friend of mine. Absolute pig. Insanely heavy, needs a ton of headspeed to do just about anything. Cyclic is super weird, it just doesn't fly right at all. He's a Gaui team pilot so he probably knows how to tune a heli, but he could never get it to fly right.
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Old 10-25-2019, 09:13 AM   #19 (permalink)
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I flew a Fireball a few times that belongs to a friend of mine. Absolute pig. Insanely heavy, needs a ton of headspeed to do just about anything. Cyclic is super weird, it just doesn't fly right at all. He's a Gaui team pilot so he probably knows how to tune a heli, but he could never get it to fly right.
What is weird about the cyclic?
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Old 10-25-2019, 10:00 AM   #20 (permalink)
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It's just really off. Super mushy. No crispness whatsoever and very non-linear cyclic response throughout stick travel. Flies like a pregnant fish with wet spaghetti for blades. Many of the guys that I was hanging out with when I flew it said the same thing about it. One said it flies like a shop towel.

It's weird though - aside from the direct drive motor, there's not much about it that's different from other Goblins which fly just fine.
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