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Girl with new quad! - Calling all motor heads!

Started by bunnygirl80, Wednesday,January 30, 2013, 19:35:25

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Wednesday,January 30, 2013, 19:35:25 Last Edit: Wednesday,January 30, 2013, 19:50:12 by bunnygirl80
Hi motor heads,  ;)

My Crius AIOP arrived yesterday  ::) and I';ve been pondering whether to just replace the FC in my SK450 or build a new quad! The SK450 was only built over Christmas and has only been out a few times (5), but now that I know that I like the hobby, I';m thinking I should use this bad weather as an excuse to build another quad ready for the summer and for some serious flying and filming. At least then I will have a backup quad! Just in case!


The SK450 was bought from John of EyeFlying.com who was superb and recommended all the bits. The bits are ideal for learning and I';m sure I will have lots more fun learning with the SK450 when the weather improves. Here is what it has...

1 x SK450 Frame Kit         
4 x 1000Kv RCTimer Motors - http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=813
1 x Skywalker Quattro 4x20amp ESC - http://unmannedtechshop.co.uk/rc-gear/bl-motor-esc/skywalker-quattro-4x-20a-esc-for-quadcopters.html
1 x Flight Controller - Multiwii SE V2 Software - http://unmannedtechshop.co.uk/multi-rotor/flight-controller-boards/multiwii-se-flight-control-board.html
4 Pairs of 8x4.5 EPP Props with adapters (includes a spare set)

I am running all of this using a Turnigy Nano Tech 3cell 3300mah 25-50C battery - http://www.hobbyking.com/hobbyking/store/__29009__Turnigy_nano_tech_3300mah_3S_25_50C_Lipo_Pack_UK_Warehouse_.html

I';ve tried a Turnigy 3cell 5000mah 50c battery, but the weight is just too much and the quad is struggling to lift. Not sure if there is anything else I can do to improve the SK450! Perhaps bigger props? Like 10x4.7? What do you think?  :shrug:


Okay, this brings me on to the new quad. When I bought the SK450 I bought an upgrade frame for it too (pic below), thinking I would probably crash and that would be a good replacement frame for all the bits. As it turns out, I haven';t done a great deal of flying and the SK450 hasn';t yet had anything other than minor encounters with bushes!

The downside to all of this is that I';m a total numpty  :sick: when it comes to choosing the right hardware for the job and this is why I';m calling all you motor, esc, prop heads! I have identified some problems with the SK450, the main one being lack of power. So, I would like more power, lots more power in my next quad. I also think from what people are saying that four seperate ESC are better than the 4 in 1 ESC. I would also like to lift a small camera.

So, this brings me to my second question, can anyone recommend some bits for the dead cat? I also need some motor mounts as the black donuts which fit under the motors have been used on the SK450.

I notice on the HK website, they recommend this motor for this quad! http://www.hobbyking.com/hobbyking/store/__29063__Turnigy_D2836_8_1100KV_Brushless_Outrunner_Motor_UK_Warehouse_.html Any good?

Here is a photo of the upgrade dead cat frame which I just put together... The AIOP will go into the new quad!

Thanks again,

Always smile because you never know who could be falling in love with it. :) Drone Operator in North Wales. www.aerialworx.co.uk


I';m really pleased to see this isn';t a actual dead cat like in the other thread  :rolleyes:  ~~


For very smooth motors (IE well balanced out of the box) I can recommend these:


With only moongel under the gopro and the props balanced I got jelly free video without having to balance the motors.
Acceptably but not massively powerful on 3s with 10x5.5 props, but I';d think a lot snappier with 4s and 10x5.

HK f30a with Simonk firmware took my disco from sedated hippo to rock solid with no other changes.



Gaz, Yeah, decided it wasn';t a wise thing to put the cat on the quad! LOL.

D, thanks for the motor input. I will have a look, see if I can learn something.
Always smile because you never know who could be falling in love with it. :) Drone Operator in North Wales. www.aerialworx.co.uk


Everybody has their favourite motors..  so I am sure you will get a lot of recommendations... but some food for thought..
<900kv motors on that frame will probably need 10" min props...  >900kv you can probably use 9" props, the reason I mention this is you want to put a camera on such as a gopro. on wide setting... 10" props might get in the frame.
10" props will give longer flight times, but 9" props will give you more of a locked in feel...  pros and cons..
I take it you will be using 3s Batts ?
Try and get a motor you can easily get spares for.. cheapest isn';t always best.... also get motors with bolt on prop adapters if you can..
BNUC-S Pilot with PfCo /PFAW.
UAQ / CAA PfCo Instructor / Flight Assessor

"All that is necessary for the triumph of evil is that good men do nothing"