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Home✈️Aircraft🚁Helicoptere-MinicopterJoker › New Joker 3DD on IRCHA
08-21-2008 09:01 PM  12 years ago
nooobs

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08-21-2008 09:12 PM  12 years ago
Thuvanduc

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Salt Lake City, Utah

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[quote]The video was an eye opener

Indeed it is. Just wonder the longevity with such payload and speed. The current JK2 is a very fast machine with 12s and Actro 32-3. I think I will purchase the flybarless head and make the TT drive conversion myself.
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08-22-2008 07:14 AM  12 years ago
Gerd

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Vellmar/Germany

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John,
bigger blades (stretched Maxi-blades)are existing as prototypes with 950 mm length about. I will try them with the shaft driven MaxiDD.

rtom,
the target price for the Joker 3DD (belt) is about the same like Joker 2. The tube drive version is about 100 Euro more expensive. A fiberglass canopy is included now in both versions. Motors/controllers/batteries and blades are separately.

Jeff,
one of the reasons for the DualDrive is the separation from main and tail cells, because 16 cells (or voltages above 50 volts can be dangerous).
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08-23-2008 04:40 AM  12 years ago
littleman

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Pasadena, Ca

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David Pengers video is now up from IRCHA with the belted flybared version that he and I flew all weekend. Keep an eye out for the loop
Sorry for the garbage commentating
A.J.
Proud member of Teams MSH USA, Futaba, Scorpion, & Nick Maxwell Products
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08-23-2008 08:05 AM  12 years ago
nooobs

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08-23-2008 02:34 PM  12 years ago
Janis

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Århus, Denmark

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Man, what a great vidio with David Penger.
Nice to see that the flybared MFS Head seems to work quite well.
Also the belt drive vision of the Joker 3DD.

Man I want this helis so badly

Regards from Denmark
...exist something better than V-bar and women...
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08-23-2008 03:42 PM  12 years ago
Eco8gator

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Palm Beach, FL

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Hey AJ

You did a really nice job in the video. I think you made it clear how people would control the new drive system.

Great flying David!

C
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08-23-2008 04:11 PM  12 years ago
Gerd

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At the beginning you can see how David starts the tailmotor (turn button), after starting the mainmotor he has turned back the button because then tailspeed control is in the flight conditions and not more on the turn button.

Noobs: David flies "inverted" gas, I for myself do it, too. This is a german special introduced from Dieter Schluter in the beginning of model helicopters. The intention is to copy the stick movements from big helicopters to models and then the stick must be pulled for increasing pitch. A lot of germans have learned to fly so and forwarded it to their sons like David has learned it from his father. And a good feeling for scale-pilots of course.
But please do not try that! If you invert your pitch a crash is 100% guaranteed. Have tried that in the other direction one time...
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08-23-2008 04:29 PM  12 years ago
QueeQueg

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West Texas

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That's the way I learned to fly years ago and it took me at least a year to go to the normal RC heli stick format without making the occasional mistake.

Awesome flying by both Chris and David.

Awesome machine Gerd
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08-23-2008 05:29 PM  12 years ago
Gerd

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Vellmar/Germany

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Oh, just forgotten. If anybody has interest to try the DualDrive on his current machine we could make frame sets for the Joker 2 family. The idea is to lengthen the upper frames some centimetres that the 5mm end of the shaft 747 must not be removed and you can make a rollback without any further investment. And probably the lower frames must be higher because the tailbattery is placed above the main battery.
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08-23-2008 06:03 PM  12 years ago
d-bledsoe

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Kirkland WA

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Gerd i am interested in trying out the dual drive on my current joker 2 What would the cost be to convert?Derek Bledsoe
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08-23-2008 08:15 PM  12 years ago
nooobs

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08-23-2008 08:44 PM  12 years ago
500Driver

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Burlington, IA

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Gerd,

I'm definitely sold on the idea.

If a Maxi Joker II 'conversion' becomes available let me know...

Current AUW is about 20 pounds for AP work.

10s2p A123

Pletti motor

Schulze ESC
When in doubt...auto out
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08-23-2008 09:32 PM  12 years ago
misskimo

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Alaska 17 years, before mississippi for 31y

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hey , well you will like this neat feature. in 3D form can sure see the savings by having a seprate motor for the tail. One real thing you will notice by having a motor for the tail for scale or an A&P machine. you can choose your RPMs for a smooth tail. Like Gerd told me at IRCHA. A big heli like the Joker 2 with a belt. at around 7000 rpms the belt when it makes its cross ( belt has a twist in it) at around the middle will start hitting each other as they pass. at around 7500 RPMs it gets smooth again. so if you had a vibration in the tail when you were hovering around with a low HS but the tail was in the 7000 rpm range, now you know why you had a vibration in the tail.
For 3D Im ganna try some other motors for the tail. but since mine is inline with the torque tube , motor selection is limited
guys with the MJ 2 with the belt has better selection.
I want to try a 2 pole or 4 pole with a gear box instead of the outrunner.
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08-27-2008 08:31 AM  12 years ago
misskimo

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hey , what do you think of that start up ? Joker 3DD , big file though and 2 videos back to back

Tony
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09-23-2008 11:34 PM  12 years ago
Gerd

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Vellmar/Germany

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Hi Daytonabeach,

yes, we are preparing two conversion sets. The simple one is only two upper side frames and the rest of the gear is like before (of course the belt wheel on the shaft 747 is dead now). This makes sense if you just like to test the Dualdrive without getting higher costs.
Conversion two is a set including the new freewheel on the mainshaft and a fixed belt wheel for the first stage. But the side frames are different to the simple conversion. So if you like the Dualdrive from set 1 and will convert to set 2 you can sell the frames to another one.
Maxi 3DD will come later, first the test phase. Perhaps end of this year.
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09-24-2008 09:20 AM  12 years ago
daytonabeach

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Oslo, Norway

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Sounds interesting Gerd, look forward to see some samples when its ready...Never argue with an idiot, he'll drag you down to his level and beat you with experience...
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09-27-2008 02:08 AM  12 years ago
davejoyce2000

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USA

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3DD conversion
Here's a two part question:

If I buy the shaft or belt driven version of the 3DD and decide later I don't like the dual drive technology. Can the 3DD be converted back to a conventional single motor drive?

Currently there are so many joker models and versions. Which joker is the ultimate extreme 3D flying heli? My guess is the Maxi-Joker 3DD, shaft driven. It has the largest rotor diameter which is best for performimg extreme 3D maneuvers. It is also shaft driven which produces a higher tail rotor RPM than belt drive. Am I right?
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09-27-2008 02:19 AM  12 years ago
littleman

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Pasadena, Ca

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I can only answer the 2nd part. The NORMAL joker 3dd will be the ultimate, generally the maxi is more made for heavy lifting such as AP work. As far as shaft or belt, it doesnt much matter because the tail motor is governed by the esc, so you can set it to a higher speed. I flew the belt driven one and had no tail issues, but personally I prefer the shaft drive, the inline motor is real cool to me.
A.J.
Proud member of Teams MSH USA, Futaba, Scorpion, & Nick Maxwell Products
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09-27-2008 03:37 AM  12 years ago
kiwidave1

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Seattle, WA

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disk size (wait a minute, did I type that right, double check, triple check..yip good) is only half the equation, head speed must also be factored in.

Imagine a trex 450 at 1500RPM and then a 90 sized at 3500RPM, I think the Maxi head can only handle about 1400, making for mighty sluggish Tic-Tocks .

David
Never underestimate the power of stupid people in large groups.
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