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New belt drive Contra from Japan

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New belt drive Contra from Japan

Old 02-26-2017, 05:54 AM
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Default New belt drive Contra from Japan

Has anyone seen this before or have any details?
I'm going to send an email to Morris Hobby (have purchased from him before) to see if I can get additional details.

It looks like it may be from 50Products in Japan and it looks a bit like the new BJCraft Contra motor. It looks similar in mounting to an OS belt drive in terms of overall envelope.
Interesting that belt drives are being adapted to Contra, also Kontronic seems like a popular choice for newer Contras.
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Old 02-26-2017, 06:06 AM
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Thanks to Google translate, I found another page with more information and weights.
It is NOT as 50 products as I guessed, but built to order from Mr Akiba directly!


Although it has the name "Omaru",
it seems that it will not be sold by 50 manufacturers of the manufacturer .
Will be bought directly from Mr. Akiba, please purchase at our shop.
(Mr. Akiba seems to launch HP next month.) Although it may be difficult to understand

what kind of structure it is double inverted, the
rear side pulley for the propeller on the opposite side of the belt So, it is a mechanism that turns in reverse.

Of course, the rear propeller is reverse pitch.
Since the spinner also turns in the opposite direction in the front and back, exclusive items are included.
It is a lightweight spinner formatted with a 3D printer.
(Although the surface is slightly rough, the flight does not seem to hinder) A

special tool to tighten the rear side propeller nut and a steady rest on the motor are included

The original propeller (Brenner) seems to be market price.
(The current price is around 30,000 yen with 2
pieces) Because there is no business sales because it is handmade and not mass-produced, due to
convenience of importing small amounts each time , selling price is decided at the exchange rate at that time without profit That seems to be the case.
Therefore, we can purchase if it is with our unit even at our shop
, please contact us if you only wish for a propeller. (It will be a quote for each time) Since the

Pela for contra of Falcon is also available, this is available for ordinary purchase.

Since it is a custom-made product, it is likely to wait for a while.
We also have back orders in our shop, but this first one and beyond is the
situation of undecided delivery date.

Contour belt drive
Falcon Contra drive carbon propeller 22 x 20 Front
Falcon Contra drive carbon propeller 22 x 22 Rear

RTF weight (motor assembly, spinner and 2 Falcon props) is 835g according to photos.
Old 02-26-2017, 10:49 AM
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Dumb question... but does using a reduction drive mean you use a smaller motor... longer battery times?
The contra concept is understood BTW.

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