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HomeAircraftHelicopterAerial Photography and Video › Building a stable and reliable Maxi-Joker
04-22-2009 05:49 AM  9 years agoPost 1
AllJeep

rrNovice

East Coast

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I'm looking to buy and build a Maxi-Joker 3 that will be used for AP (not AV) carrying a Canon 50D and 24-70L lens with an underslung mount.

I have been hesitant to pull the trigger on the order because I want to make sure I have everything sorted out before I start making the purchases.

My goal is to build a stable and reliable electric powered camera ship for solo aerial photography.

Do you guys mind looking over my list and see if I have covered everything? Any suggestions or changes?

Here's the list:

Helicopter:
Maxi-Joker 3 with Torque Tube, Flybarless head and optional larger battery tray for A123 cells

Motor:
Actro 32-4 Heli MAX

Batteries:
A123 12S2P 4600mAh
or
Hyperion Generation 3 CX 6S1P 25C 5000mAh LiPo (using two for 12S2P)
or
Hyperion Generation 3 VX 6S1P 35C 5500mAh LiPo (using two for 12S2P)
Using about 6mm bullet connectors with heat shrink to cover the contacts.

ESC:
Kontronik Power Jazz 63V

BEC:
Two 6 volt Koolflight Redundant Dual UBEC with diodes wired in parallel rated for 12S

Main Rotor Blades:
Rotortech 830mm

Tail Rotor Blades: Not sure which would be best. Any suggestions?
110mm, 120mm, or 130mm

Servos:
Futaba S9252 3x
Futaba S9254 1x

Gyro:
I was thinking about using the tail gyro built into the Helicommand Rigid. Is this a bad idea? Should I use a separate Gyro?

Flight Stabilization:
Helicommand Rigid

Futaba 2.4 GHz TX & RX

Camera Mount:
PhotoShip One VR360 Carbon version with Lord mount (when available)

Curves:
Pitch Curve: -10, 0 +10
or
Pitch Curve: -6, 0 +10

Am I missing anything or how would you do it differently if your goal was to build a stable and reliable electric powered camera ship for solo aerial photography.

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04-22-2009 06:35 AM  9 years agoPost 2
rroback

rrElite Veteran

Irvine (UCI), Ca

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you need a different lens. think wide, like 15-17-20-24-35mm....

Rhett..... I can't fly, but the Profi sure can.

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04-22-2009 09:42 AM  9 years agoPost 3
Hogster

rrKey Veteran

Surrey, UK

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For the 50D, the 17-55mm F2.8 IS would be an ideal lens ... nice fast aperture and very sharp The only disadvantage is not being able to use it on a full-frame camera should you upgrade in future ...

Also I would suggest not going much below -4 to -6 deg pitch - you definitely don't need -10!

I find the HC's internal tail gyro perfectly adequate for AP work ... think you should be fine with that

My 2p,

David

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04-22-2009 10:28 AM  9 years agoPost 4
DIM

rrApprentice

Athens Greece

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AllJeep try the Jive 80hv instead of powerjazz,it is amazing and very eficient.

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04-24-2009 03:07 PM  9 years agoPost 5
airsoft1779

rrApprentice

Greenville,SC-USA

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wondering how the 50d works for AP, shoot me a p.m. once u get some pics w/ it, theres not much info on it in the AP forum and im considering purchasing it. what is the total weight of the camera w/ the lens and batt. ready to go?

6s Trex 450 PRO and Vision 50 Comp.

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04-29-2009 09:51 PM  9 years agoPost 6
AllJeep

rrNovice

East Coast

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Sorry not sure of the total weight.

If running 830mm blades would it be better to run 130mm or 120mm tail blades?

What have you guys found works best?

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04-29-2009 09:53 PM  9 years agoPost 7
AllJeep

rrNovice

East Coast

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Why would one want to go with the Jive 80 over a PowerJazz other then the fact that it is cheaper?

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04-29-2009 10:03 PM  9 years agoPost 8
theslayer

rrApprentice

Munich-Germany

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No external BEC needed...

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04-29-2009 10:07 PM  9 years agoPost 9
rerazor

rrElite Veteran

Mich.

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Is the Jive 80 Gov. function as good as the power jazz?

Robert

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05-04-2009 07:54 PM  9 years agoPost 10
AllJeep

rrNovice

East Coast

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I am going to be purchasing the items soon.

Still have not decided on the size of tail blades and batteries.
The new Hyperion G3 batteries are rated for 5C charging and 4x more cycles. Makes it a hard decision between A123 cells.

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05-04-2009 10:01 PM  9 years agoPost 11
Makiedog

rrVeteran

Minneapolis

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Even though the battery can withstand 5C charging, you will have a hard time finding a charger that can do more than 2c of the 5000 mah capacity, which is 10 amps.

Pat L

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05-05-2009 06:05 PM  9 years agoPost 12
Gerd

rrVeteran

Vellmar/Germany

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Gear reduction and tail transmission are all the same like Maxi-Joker 2.

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05-21-2009 03:32 PM  9 years agoPost 13
Flightlutions

rrApprentice

NYC

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I'm curious about the Jive vs Jazz too.
The Jive costs less, has a built in BEC and is lighter then the Power Jazz.
Are those the only reasons why most go with the Jive over the Jazz?

Anyone in favor of the Power Jazz over the Jive?

AJ

AJ | http://flightlutions.com

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05-21-2009 03:39 PM  9 years agoPost 14
rerazor

rrElite Veteran

Mich.

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Never owned a Jive. I just know the power jazz works and in the end the extra cost and weight is a non factor. Go with the Power Jazz.

Robert

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05-21-2009 05:33 PM  9 years agoPost 15
rroback

rrElite Veteran

Irvine (UCI), Ca

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Both work great. Used to a have a powerjazz, now have a jive 80, I like the smaller size off the jive.

Rhett..... I can't fly, but the Profi sure can.

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05-25-2009 09:46 AM  9 years agoPost 16
fionn

rrApprentice

Ireland

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Hi Guys, I'm running a Power Jazz myself on my Maxi2 and I'm considering switching to Jives across the board. Just curious to what you guys are using for BEC power with your Power Jazz's? I always used a NiCD and a regulated LiPo in a redundant setup but recently had a disastrous experiment with the Hercules range of BECs (both high capacity and the high voltage model). They both cause ridiculous RF interference - indeed the HC model is only rated for 2.4Ghz RC systems & I should have spotted that before purchase.

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05-26-2009 07:32 AM  9 years agoPost 17
djdaveq

rrApprentice

new york new york usa

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sounds sweet!

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