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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Sylphide E12 - My build pics
04-05-2011 05:12 PM  6 years agoPost 81
Gorgin4325

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Florida

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Hi Johny,

I'm just curious, what made you choose the MP80Ts over the MP80S?

Thanks,
G

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04-05-2011 06:15 PM  6 years agoPost 82
[X]Outlaw

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Trinidad and Tobago

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That machine is just pure candy to me. One day...one day..

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04-05-2011 07:05 PM  6 years agoPost 83
sks

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london

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Johnny,

can you confirm that the tail pulleys are now plastic. This is rather important to me since the standard metal ones on the nitro Sylphide ate the belt teeth, so I'm hoping JR learnt their lesson.

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04-06-2011 01:27 AM  6 years agoPost 84
mdu6

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Montreal

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what made you choose the MP80Ts over the MP80S?
Yes - interesting question

The 'T' has twice the torque (25kg) but half the speed 0,19sec compared with the 'S'.

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04-06-2011 02:58 AM  6 years agoPost 85
johnnytango

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Toronto, Canada

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marcosp,

Your health is more important.. so get the SY-E12 so you can sleep well. I had the same problem before.

G,

I chose the MP80T because FOR NOW I prefer torque over speed. Before I wanted to get the MP70A (lower torque, .04 quicker than MP 80T) but they have plastic gears. The MP80S is much quicker but not a high torque.
I am not good flying yet. Good pilots can use the MP70, they are more precise flying their helis and they don't make a lot of correction when flying their machine.. but with this powerful heli
I'm not sure what maneuvers I might make, I just wanted to make sure that I can pull the heli out of trouble when I have to. MP80T also have metal gears and I'll be doing a lot of practice flying I think this would last longer (except metal gears have the tendency to have a play after sometime). I just feel safer using a higher torque servo for now.

sks,

I'll double check the tail pulley before I post the answer. You meant the one on the tail gear case.. right?

Regards to all
John

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04-06-2011 11:52 AM  6 years agoPost 86
johnnytango

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Toronto, Canada

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G,

Additional answer--

If I could re-phrase your question why the MP80T over the MP80S? it'll be.
Why the MP80T and not the MP70?

my first choice to use on the build was the MP70-competition servo, also that's the same servo that JR used on their model SY-E12 on their website. But I think the MP80T is next step up than the MP70 not considering the weight. The MP80T is just a nick slower but definitely have more torque.. so really the MP80S wasn't really considered.

Regards
John

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04-06-2011 02:49 PM  6 years agoPost 87
Gorgin4325

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Florida

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Hi Johnny,

I might be getting the MPH81S servos for my F3C machine when they come out... but I would like to see/hear some reports from regular guys before I commit!

After speaking to Steve Roberts a while ago, I decided to get the MP70s as well, because of the fact that they have plastic gears and develop less slop overtime! But I had some old left-over sloppy 8717s from an older heli that I decided to use for now until I decide what to do...

Best of luck,
G

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04-06-2011 02:58 PM  6 years agoPost 88
GootyS

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Gauteng South Africa

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Scott Grey is using the 8915 on his sylphide and is using rubber bands to remove slop. Cant argue with second in the world, must work for him..lol. Im running the same servos and also notice slop.

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04-06-2011 03:13 PM  6 years agoPost 89
Mr. Heliguy

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Jakarta, Indonesia

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GootyS,

Do you know how he uses the rubber bands on his servos?

Regards,

Adriel Mesias Simorangkir
INA 0975

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04-06-2011 03:16 PM  6 years agoPost 90
l4rg0

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Northfield, KY - USA

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Mr. Heliguy, look here

you can see the rubber bands in the photos

Team A Main Hobbies/ProTek R/C
Spartan Avionics Field Rep

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04-06-2011 04:26 PM  6 years agoPost 91
Mr. Heliguy

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Jakarta, Indonesia

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Hi guys,

I really don't understand how those rubber bands will eliminate slop, can anyone please explain how it works?

Regards,

Adriel Mesias Simorangkir
INA 0975

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04-06-2011 04:29 PM  6 years agoPost 92
l4rg0

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Northfield, KY - USA

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it holds the gear mesh tighter together in the servo by adding side force. It doesn't so much eliminate slop, as manage it to a reasonable level.

Team A Main Hobbies/ProTek R/C
Spartan Avionics Field Rep

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04-06-2011 04:33 PM  6 years agoPost 93
Mr. Heliguy

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Jakarta, Indonesia

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Alright, thank you for the info.

Back to topic now

Regards,

Adriel Mesias Simorangkir
INA 0975

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04-06-2011 08:09 PM  6 years agoPost 94
sks

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london

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I'll double check the tail pulley before I post the answer. You meant the one on the tail gear case.. right?
I need to know both (in the tail case and the one you photographed attached to the helical tail pinion). There's no point in having only one plastic pulley because the other metal one will be doing the damage.

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04-06-2011 08:19 PM  6 years agoPost 95
heliFX

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Toronto, Canada

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both SY-E12 and AS-E12 have similar Front and Rear pulley.
high precision CNC machined from hard aluminum anodized in black.

not sure possibly made of Duralumin

most these parts have JR HG coding.

no plastic. If I'm not mistaken there similar to the K&S upgrade

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04-06-2011 09:49 PM  6 years agoPost 96
sks

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london

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well in that case, depending on pulley size, do these black metal pulleys look like the red K&S pulleys for the Sylphide and do they have the same number of teeth as the K&S red pulleys?

JR might have revised the design and the belt teeth eating might be fixed, but I won't be complacent about it.

Funny you should mention K&S, because I've heard years ago, all JR heli kits and parts are actually made by K&S now.

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04-06-2011 09:59 PM  6 years agoPost 97
cmir2425

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miami, fl usa

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The pulleys are the same ones from the long tail conversion for the nitro Sylphide. One more tooth I believe, just like the KSJ upgrade ones except the color.

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04-08-2011 12:53 AM  6 years agoPost 98
johnnytango

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Toronto, Canada

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sks,

heliFX's correct about the pulleys.. they're metal. I thought they were plastics as they look like. I poked it with a dental pick to see if it would sink in... nope.

G,

I thought the MPH81S is in stock (RCJapan). I never really considered that one.. its really new and haven't heard any feedbacks yet. It'll be nice if you can have it.. be the first and let us know how is it.

Regards
John

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04-08-2011 02:00 AM  6 years agoPost 99
johnnytango

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Toronto, Canada

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There are wires that still have to go to the receiver-- the throttle wire from the ESC, the power leads from the regulator and the wire from the gyro which goes to the gyro amp. I left the gyro wire since it's going to be fixed outside the frame.. I wanted to finish installing the servo wheels and links so I can see clearly where to route the gyro wires.

I mounted the Jive ESC to the esc tray. Plenty of room in the tray and enough clearance between the motor and esc.

A little challenge routing the throttle wire to the front. I didn't want to fix it outside the frame and showing. First I made some sort of an elbow (using a thick wall heat shrink tubing) to make a sharp turn for the wire going to the side.

I used a cable tie to make wire holder. I guess it worked well.

Next I just mounted the voltage regulator to the side
of the main frame. I may move it later on underneath the
electronics tray but for now it's kinda eye candy for me so
I like to see it there.

I didn't like the slider switch on the
regulator so made a plug type switch.. the regulator turns on when there is no continuity on the switch wires.

--PAUSE--

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04-08-2011 05:30 PM  6 years agoPost 100
heliFX

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Toronto, Canada

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both kits come with extended tail boom to allow for 720 mm blades.
tail ratio are the same for both 4.79 ( you can always download the manual from JR to check on certain parts)

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Scorpion Power Scorpion Power
HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Sylphide E12 - My build pics
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