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Archive for May, 2019
Posted by kiwi_craig | May 18, 2019 @ 06:30 AM | 1,608 Views
Like many others first flight of the stock 130S was a bit lack lustre, the machine bogged down easily in higher G moves and generally felt heavy and under powered. Nice flier but needed more pep.

Seems that going for the longer 180 CFX blades didn't really suit the machine either at 150 - 153 - 155mm lengths didn't work.

By chance I also fly an XK K130 this has really nice stiff CF blades at 143mm long that fir perfectly into the 130S. The blades are noticeably stiffer and the handling is noticeably improved. and it suits the stock tail boom length. I upped the tail I setting by 20 in the Tx - Rx

The machine picked up allot more speed and way better performance all round. seems this is the magic length and the stiffer CF suits the heli perfectly.

Stiffer CF blades for 1/2 the price of the stock plastic flexi blades.

I added white film wrap to the black CF blades and red tip stripes, visibility is as good as stock.

Batteries: the new GNB 450 batteries suit this guy down to the ground, sold 5 1/2 minutes fly time and good power delivery solid as up to around 5 1/4 minutes then you can feel it was back a fraction. Did push them to 6minutes but that resulted in 3.6V in the cells.

having fun with the new battery and CF main blades

CF tail boom next !

Blade 130S park fly (9 min 12 sec)

Posted by kiwi_craig | May 18, 2019 @ 01:54 AM | 1,773 Views
Like many of you, I found the blade 230s/250 cfx tail / tail blade to be pretty hopeless; poor hold and screams like hell when worked hard.

I really like the 250 cfx but the weak tail was quite frustrating - 45 degree tail blow outs are common

Blade just transferred the 200 srx tail blade, which was marginal even on that smaller bird, into the 230 /250. In the 230 when up you update the main motor, and the 250 even stock, tail blow outs are common.

The stock prop has a flat pitch and relied on lots of rpm to generate thrust. Problem is the bigger rotors on the 230 and especially the 250 need more holding power than what the stock prop can deliver hence the screaming tail syndrome. Dia is oddball as well at 3 1/4 “

On the 200srx I had great results using 3” DIA three bladed 3045 quad props and these also worked well on stock 230s but was working hard on the 250cfx. Even the 3056 wavy profile blade was working hard, so time for a revision !

I have been looking at 4” props but the majority are too bulky and the typical bull nose end profiles are to aggressive and overheated the tail motor. round end 4045 2 blade units are hard to find

I spotted some great looking folding 4045 twin blades props and with a bit of simple adaption these work great on the 250. !

These are also going onto the Huey and as355 scale birds

Further more being a folding design, busted tail blades are a thing of the past. The blades are stiff and generate...Continue Reading