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Other News  I think I see a goblin
10-14-2011 03:02 PM  6 years agoPost 41
philip 01

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ft worth

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are they available thru heliwholsaler?

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10-14-2011 03:41 PM  6 years agoPost 42
Ronald Thomas

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Gainesville, Fl, USA

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Only helidirect in the US

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-14-2011 03:48 PM  6 years agoPost 43
philip 01

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ft worth

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perfect.

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10-14-2011 04:28 PM  6 years agoPost 44
whoamis

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san francisco, ca

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It would seem that the ranking of efficiency is the inverse ranking of "vibration." Be good to your VBar, and it will return your love many times over...

I own a Protos (all belt, end to end, no gear-on-gear anywhere) and a T550E. When the Protos spools up, I always think, "Sweet!" When the 550 rattles up to speed, I always think, "Ew."

Goblin looks pretty interesting indeed... but I'm about to replace boom and TT after a 550 crash; not sure I'd like to multiple those parts costs by some large factor with a CF tail "boom" on the Goblin. If that tail costs as much as 550E frame sides...

But that's just money... sweetness is priceless.

oops, bounced it!

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10-14-2011 04:53 PM  6 years agoPost 45
rchelichop

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seeya

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I'm not sure what they get out. My good designed torque tube helis are FAR quieter than my good designed belt drive helis.

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10-14-2011 05:44 PM  6 years agoPost 46
fusuno

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china

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truely priceless

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10-14-2011 06:02 PM  6 years agoPost 47
Eury

rrProfessor

Dover NH

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I've owned almost everything out there, and nothing has touched my Logos and Protos for being quiet. Not even close compared to a TT machine.

Nick Crego

Citizen #0168

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10-14-2011 06:35 PM  6 years agoPost 48
philip 01

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ft worth

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+1 on the logo.

btw, it is for sale in the e heli classifieds....

600SE sweet deal.

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10-14-2011 08:45 PM  6 years agoPost 49
zmooth

rrApprentice

Athens/Greece

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that's one rough way to land it

Watch at YouTube

With great power comes great voltage times great current !

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10-14-2011 11:45 PM  6 years agoPost 50
BobOD

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New York- USA

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and doubt anyone is interested in splitting hairs.
No need for your drama phil. ?
Question was pondered and I shared information.

Anyhow, having considered it some more, I think the answer may be that it is more robust. And if you're building for power, robustness can be more important than a few percentage points of efficiency. Perhaps that's why they went this route. I kinda like it.

Team POP Secret

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10-15-2011 12:16 AM  6 years agoPost 51
philip 01

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ft worth

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drama? do what?

this is not your e vs n.

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10-15-2011 02:14 AM  6 years agoPost 52
rchelichop

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seeya

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A logo and protos are plastic framed helis, their quietness doesn't come from the belt. During tail pitch changes you can hear the belt whine whereas a torque tube makes not a sound. Or when going along fast side ways you can hear the tail whining.

Bert with Goblin

Watch at YouTube

Bert with Trex 700

Watch at YouTube

If you can't hear the difference, then please don't bother to respond, thanks

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10-15-2011 02:26 AM  6 years agoPost 53
BobOD

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New York- USA

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Definately has quite a tail buzz to it. I was thinking it was because of the rotor speeds these guys are running.
Anybody have info on the head speeds?

Team POP Secret

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10-15-2011 02:56 AM  6 years agoPost 54
Justin Stuart (RIP)

rrMaster

Plano, Texas

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Tail buzz = sad

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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10-15-2011 03:03 AM  6 years agoPost 55
BobOD

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New York- USA

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Depends on the head speed. I could be wrong but I think the HS is up there on that Goblin so not sure if apples being compared to apples.

Team POP Secret

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10-15-2011 04:33 AM  6 years agoPost 56
whiskey

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Richmond,Va. USA

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You have to consider
That was Berts first flight with the goblin and using a different control style it looked like. He probably has 10000 flights on a Trex 700.

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10-15-2011 04:36 AM  6 years agoPost 57
sinte

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Tacoma,WA

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^ what does that have to do with tail noise?

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10-15-2011 04:50 AM  6 years agoPost 58
whiskey

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Richmond,Va. USA

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Not much
I was looking at the quality of the flights. Sorry been jumping between threads and forums too much.

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10-15-2011 05:55 AM  6 years agoPost 59
bradbranch

rrNovice

bradbranch@msn.com

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I think the tail buzz is the tail boom acting as a resonator. .?? Example, if you roll up a large piece of paper into a cone and shout through it the sound waves travel in the direction the cone is pointing. We have a tail boom that is cone shape and the sound the belt makes when torque, is amplified and directed into an enclosed canopy to where is further amplified. On the canopy there are cooling holes and when these holes are aligned with a spectator the holes acts as directional speakers. Thus the Growling Green Goblin…

This is all conjecture but a good hypothesis!

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10-15-2011 06:18 AM  6 years agoPost 60
The man

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at home

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I think the tail needs to work harder against a thicker tail boom.

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