Page 4 of 6

Re: SF33 1/6 scale

Posted: 12 Jan 2019, 21:41
by chris williams
Er, what will you do if the servo fails later on, Peter?

Re: SF33 1/6 scale

Posted: 12 Jan 2019, 22:05
by Peter Balcombe
Chris,
Could make a small balsa framed hatch on underside with 1/16” sheet balsa cover taped in place if need be, else cut out a small area of lower skin and make good if and when a fault occurs.
Similar issue with aileron servo as the 1/6 scale wings aren’t very thick. However this servo will be in an open structure area, so covering can be cut away locally and a patch put over when done.
Peter

Re: SF33 1/6 scale

Posted: 12 Jan 2019, 22:36
by B Sharp
Don't worry too much about the servo failing Peter. I have buried servos in numerous models over the years and I can remember only one failing. I tend to use the best and most reliable servos that I can afford . I have models with buried servos on airbrakes, rudders and on the elevator of my Dart. Seven or so years on they still operate without a problem.
Brian. :)

Re: SF33 1/6 scale

Posted: 13 Jan 2019, 00:33
by chris williams
Looks like Brian's got immunity from Murphy's Law... :D

Also...7 years? That's still brand new!

Re: SF33 1/6 scale

Posted: 13 Jan 2019, 08:24
by Trevor
Like Brian, I usually just bury wing servos. I rationalise my laziness by the argument that if you do have to cut your way in to replace one, the resulting patch is normally no more visible than a hatch would have been anyway, so why disfigure the aircraft with all those hatches beforehand? It does pay to take a few photos of the installation before covering it up though, so you can work out where to make the incision when the servo fails 20 years later!

Whichever way you do it, Murphy's law dictates that the servo will be out of production by the time it fails so you'll probably have to replace two of them and hack the mounting about - hatch or no hatch.

Re: SF33 1/6 scale

Posted: 13 Jan 2019, 20:28
by Noël Rumers
Hi,
I do the same, never had a problem...
I know Murphy too!
But I know where to cut and that is ifffiiiiffff....
Noël

Re: SF33 1/6 scale

Posted: 13 Jan 2019, 20:43
by Peter Balcombe
There you go then.
I think I will definitely go for the buried servos & smooth finish option, keeping a sharp scalpel handy in case of a problem.

Re: SF33 1/6 scale

Posted: 18 Jan 2019, 16:44
by Peter Balcombe
Lower sheeting now in place - with spoiler servo buried!
Balsa LE strip has since been fitted together with aileron hinge area sheet.
Next job will be to complete sanding of the sheeting around the aileron before cutting this free.

Re: SF33 1/6 scale

Posted: 16 Apr 2019, 11:57
by Tonyw51
G'day Peter,

How is the build going?

Cheers,
Tony

Re: SF33 1/6 scale

Posted: 16 Apr 2019, 12:14
by Peter Balcombe
No more progress yet I’m afraid as I have been diverted by the SG38 , PIK20 rebuild and other projects.
Hope to get back onto it soon though.