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Author Topic: Flite Test Simple Cub  (Read 593 times)

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Offline Greno

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Flite Test Simple Cub
« on: October 05, 2017, 16:46:46 PM »
HI,
I am currently building the Flite Test Simple Cub. See link:-

https://youtu.be/Uw0_9Zmcewc

The Flite Test Power Pack recommended for this model has an EMAX GT2215/09 1180 KV brushless motor. Can anyone please advise the Hoobyking equivalent  for this motor, and the suitable prop size.
Cheers
Greno


Offline Patmac

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Re: Flite Test Simple Cub
« Reply #1 on: October 05, 2017, 22:48:34 PM »
You can buy the Emax motor here from Banggood at about the same price as HK but I think, unlike HK, their price includes shipping.
But if you prefer to use HK you could search through the motors in this section for one that's the same or similar in diameter (28.5mm) weight, KV & max current rating.
« Last Edit: October 05, 2017, 22:51:47 PM by Patmac »
Pax vobiscum

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Offline Greno

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Re: Flite Test Simple Cub
« Reply #2 on: October 06, 2017, 08:08:29 AM »
Hi Patmac,
You have given me great advice before so many thanks for this too.
I had already seen the Bang good site and noticed that it was in China so was a bit reluctant to order the Emax motor from them. The Servo Shop in the UK also supplies them but they are currently out of stock.
I mainly fly IC, with the exception of electric gliders, so have still not got to grips with the many different electric motors which can be bought. The ratings, sizes, how they mount all seem to differ. I will take a look at the HK list as you advised to see if there is a motor which is suitable, otherwise I may take a chance on Bang good.
Cheers
Greno


Offline Patmac

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Re: Flite Test Simple Cub
« Reply #3 on: October 06, 2017, 10:38:28 AM »
Hi Greeno,  this Keda motor from Robotbirds might be worth considering. It's similar in weight & size to the Emax, the KV is lower but not by a lot, the shaft is thinner at 3.2mm (the size of 600 can brushed motors) but the package includes a spare shaft.
I recently completed a 2 metre Amigo vintage glider converting it to electric power using one of these motors. So far I've only had a single test flight but on 3s lipo hauls the 930 gram glider up nicely in quite blustery wind conditions.
Pax vobiscum

Offline Greno

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Re: Flite Test Simple Cub
« Reply #4 on: October 06, 2017, 10:57:41 AM »
Thanks again Patmac. All the motors on my gliders are mounted from the front through the fire wall. On the Flite Test Cub the motor is mounted by a bracket at the back onto the fire wall. Do you have to reverse the shaft to mount the bracket on some of these motors. It may seem a stupid question to electrical experts, but some motors look like they only mount from the front.


Offline Patmac

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Re: Flite Test Simple Cub
« Reply #5 on: October 06, 2017, 20:18:42 PM »
It's difficult or even impossible to easily reverse the shaft on a lot of motors these days without modifying the shaft in some way. But most motors set up for front mounting are supplied with a bolt on prop drive & "X" mount. It does mean that the redundant "front" shaft is projecting into the fuselage & needs some space to prevent it fouling anything but that's easily taken care of using a piece of scrap balsa or WHY to act as a shield. One advantage is that the shaft itself isn't prone to being bent in an "arrival" as the bolt on prop drive takes the impact & if damaged is easier to replace than a bent shaft.
BTW, the Youtube video you linked shows the motor with the shaft projecting into the fuselage around 8 - 10 mins in..
Pax vobiscum

Offline Greno

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Re: Flite Test Simple Cub
« Reply #6 on: October 06, 2017, 21:33:03 PM »
Much appreciated Patmac. I was too busy concentrating on the build to realise how the motor was mounted. That makes it much clearer, and helps a lot when choosing a motor.

Offline Greno

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Re: Flite Test Simple Cub
« Reply #7 on: November 16, 2017, 14:31:50 PM »
Hi Pat,
Finally completed the cub. It was quite easy to build once you get used to working with the foam board.
I had chosen an alternative motor to the Emax as per your suggestions, but a fellow member of my club informed me that he had used Banggood a few times with no problems.  Hence I ordered the Emax, it took just over two weeks to arrive but other than that  the order went ok.ila_rendered
It was flown for the first time yesterday in flat calm conditions and I am very pleased with the performance. It will make an excellent very cheap trainer which can easily be replaced.  I built it for my nephew who is very keen to fly.
Its always nice when someone takes the time to give useful information, so therefore I thought I would update you on my progress.
Thanks again.

Offline itsme

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Re: Flite Test Simple Cub
« Reply #8 on: November 16, 2017, 15:40:36 PM »
it does inverted well!


 

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