Modified TT fbl head

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buzzbird
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Modified TT fbl head

by buzzbird » Fri Apr 06, 2012 12:04 pm

Modified TT fbl head

As the links for the fbl head are easy to lose and not so easy to replace until spares for the fbl head come in, I came up with a way round it.
I used the stock plastic hub, but with the fbl grips, and using Blade 400 linkages. The swash follower used the plastic washout base with a screw through it to hold it in place on the main shaft, and using a cut-off flybar control arm and the grips were changed to trailing edge.

Had a brief couple of flights on it this morning until the wind picked up. With 40% expo it is perfectly flyable without a fbl controller. With a bit more time with dual rates I may get it to fly like the flybarred version.
It certainly wasn't as skittish as it was when I tried the same setup using stock grips, but may be another avenue for those of you looking for ideas if you lose the fbl linkages in a crash.
(Ignore the jesus bolt, was taking it out when I thought I'd take the pics).


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Gav.S
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by Gav.S » Fri Apr 06, 2012 7:04 pm

Interesting mod, were there any vibes caused by only 1 swash driver and the piece of alu screwed onto the side of the washout?
You can get these flyable, but i doubt you'll get it to fly like a FB heli, you'll have to tone it way down to get stable hovers, but then it will lack agility and vice versa if you set it to be agile - a FB allows for this split personality
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buzzbird
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by buzzbird » Fri Apr 06, 2012 7:59 pm

No vibes at all, maybe because the follower is so close to the shaft.
The idea is just to see how it handles with the fbl grips against what it was like with the stock grips, but I see what you mean about agility and stability.
Unfortunately the moment I started to make any comparisons the weather turned so it'll have to wait for another day.

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Gav.S
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by Gav.S » Fri Apr 06, 2012 8:12 pm

"Staying flybarred "

You're also going to have to change your sig..... :)
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buzzbird
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by buzzbird » Sat Apr 07, 2012 12:06 am

Yeah, the main heli is flybarred. It's only got the fbl head on it as a temporary experiment, so my sig should be consistent.

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