Robart Robostruts

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Robert Scott - 24 Sep 2006 13:58 GMT

A while back, I bought a set of Robostruts ($!) for a trike gear model.
Since then, I decided to buy retracts for it and they come with telescopic
struts.

I have a little Hobbico TwinStar that would look a bit nicer with the
Robostruts installed, but I was wondering....

The Robobstruts would attach by cutting off each of the TwinStar's stock
wire gear legs to a short stub, then slipping the Robostruts over them,
securing them with set screws. Would this now make the gear more prone to
bending back, since all the stress would be concentrated to such a small
area of the original wire?

Id rather have the spindly wire look and reliability than good looks and
lots of hassles... the model is not very scale-looking to begin with.

Good flying,
desmobob

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Martin X. Moleski, SJ - 25 Sep 2006 02:34 GMT

> ... The Robobstruts would attach by cutting off each of the TwinStar's stock
>wire gear legs to a short stub, then slipping the Robostruts over them,
>securing them with set screws. Would this now make the gear more prone to
>bending back, since all the stress would be concentrated to such a small
>area of the original wire?

I'm gonna guess "no."

The struts will relieve some of the backward forces by riding over
rough spots instead of hitting them head-on.

Whatever springiness you lose in the fore-and-aft axis you will
probably get back in the up-and-down axis.

>Id rather have the spindly wire look and reliability than good looks and
>lots of hassles... the model is not very scale-looking to begin with.

I love watching active gear work. I fly at a bumpy grass field,
so I have a good test bed. I haven't flown with robostruts myself,
but I've seen a couple of sets at the field. Both planes crashed
before they gained a whole lot of time testing the landing gear.

Marty

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Model Forum / Radio Controlled / Air Models / September 2006

Robart Robostruts