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HelicopterNext D Rave-ENV-700 › a question please
04-09-2011 06:59 AM  6 years agoPost 1
R/CBOONE72

rrApprentice

Winfield, ks - USA

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I just had a few questions on the rave env 90 Nitro fbl. Why are bell cranks and tail grips plastic. What is the advantage to this?
In respects to crashes, how sturdy are the frames, what kind of crashes break them(a very dependent variable involved, I know).
How will it fly on my ys .91, I have it in a fury extreme now and seems to handle, I'm not a hard flyer and I don't know the exact size differences in these helis. And I'm assuming the rave will fly even harder then my old fury.

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04-09-2011 10:32 AM  6 years agoPost 2
gotnoclue

rrApprentice

sydney

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i actually prefer plastic tail grips and when you see/ assemble them you will see how strong and well made they are.
the bellcranks being plastic, dont see a postive or a negative with them they just work, zero issues on mine with them, if anything less force will transfered to the servos in a crash compared to metal bellcranks, may be wrong here.

cant really tell you about crashes as i have not crashed mine but i really like the seperate front frame idea, everything is really sturdy when built, very little flex.

your YS 91 should be fine, is it an ST or SR? either way it will pull hard, i am using a OS HZ-R and it is a beast, tons of power and can really stand up to abuse.
the disk on the rave is a little smaller than most 90's but to be honest i cant tell the difference.
best thing for me about this model is how easy it is to see in the air, no troubles at all seeing it when you go way out for high speed passes.

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04-09-2011 02:06 PM  6 years agoPost 3
Sky Dancer

rrVeteran

Bryan, Texas

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The molded parts on the ENV are very high quality and work well. I don't see a need for metal parts in this application (except for those that just want more bling). They also help keep the weight down compared to metal parts. The control system is very positive with crisp response when asked to do so.

The frames are quite sturdy and well supported. They survive all but the most violent crashes.
the disk on the rave is a little smaller than most 90's but to be honest i cant tell the difference.
Hmmmm, I'm not sure exactly what this refers to? I'm running Radix 710 FBL blades on mains and Radix 110's on the tail.

Try one, I think you'll like as much as I do....

Don C

Keep up your rotor speed !

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04-09-2011 03:36 PM  6 years agoPost 4
rcnut

rrElite Veteran

Rockford, Illinois

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the disk on the rave is a little smaller than most 90's but to be honest i cant tell the difference.
Hmmmm, I'm not sure exactly what this refers to?
Simple, gotnoclue is referring to the distance between the blade grip bolts.

Rave = 150mm
Trex 700 = 174mm
Aurora = 176mm

24-26mm longer than the Rave (or 12-13mm longer per side)

The blade grips on the Rave are shorter in length than most others.

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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04-09-2011 07:10 PM  6 years agoPost 5
R/CBOONE72

rrApprentice

Winfield, ks - USA

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I have the ys Sr motor

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04-09-2011 08:31 PM  6 years agoPost 6
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Metal tail grips are a bad idea on any heli ... There is no advantage and they cause a lot of vibration related issues ...

Metail tail grips are bad, m-kay?

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04-09-2011 09:04 PM  6 years agoPost 7
gotnoclue

rrApprentice

sydney

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Thanks rcnut that's exactly what I was refering to.
Everything on this heli has been done for a reason, if you ever get a chance to talk to Curtis at a funfly do it, I spent about an hour talking to him about the env when he and Brian came to Australia last year.

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04-10-2011 04:46 AM  6 years agoPost 8
Sky Dancer

rrVeteran

Bryan, Texas

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Cool, thanks rcnut....

Don C

Keep up your rotor speed !

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04-11-2011 01:24 AM  6 years agoPost 9
rcnut

rrElite Veteran

Rockford, Illinois

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Hey guys, you're more than welcome.

I talk to Curtis every chance I get, half the day at the Saint Charles fun fly in Chicago IL (when he is there), and as often as I can at IRCHA. I've known Curtis for many years.

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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