Engine Cowls

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jflongworth - 19 Oct 2003 22:18 GMT

I have a Golberg Anniversary Cub and am replacing the flimsy original ABS
cowl with a fibreglass version. I had to cut the rear of the old one (to the
rear of the engine) to get the cowl over an OS46 FX mounted horizontally
with a pitts style muffler. I'd like to maintain scale as much as possible.
I have seen methods where the entire area behind the engine has been removed
but it doesn't look right. How was the cowl on the full size J3 attached? I
have seen another method where the top and bottom of the cowl were separated
and then screwed together. This looked like a better approach but the cut
had to be very precise and looked tricky. Any assistance would be much
appreciated.

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James D Jones - 19 Oct 2003 22:55 GMT

Separating the cowl into two parts isn't all that hard. Just carefully
mark the cut line with a sharp pencil and cut with a razor saw. Once
you have the two parts they can be made absolutely flat by using
sandpaper on a flat surface (like a plate of glass). You might want to
make an overlap on the inside by gluing on a thin plastic strip to one
of the two separated parts.

Jim - AMA 501383

> I have a Golberg Anniversary Cub and am replacing the flimsy original
> ABS cowl with a fibreglass version. I had to cut the rear of the old
[quoted text clipped - 7 lines]
> very precise and looked tricky. Any assistance would be much
> appreciated.

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Fred McClellan - 20 Oct 2003 01:50 GMT

>I have a Golberg Anniversary Cub and am replacing the flimsy original ABS
>cowl with a fibreglass version. I had to cut the rear of the old one (to the
[quoted text clipped - 6 lines]
>had to be very precise and looked tricky. Any assistance would be much
>appreciated.

E-mailed direct with three photo attachments.
Cheers,
Fred McClellan
the dash plumber at mindspring dot com

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jflongworth - 20 Oct 2003 18:00 GMT

Not sure Fred if you got my direct reply and if not, thanks again for the
photos of the "real McKoy". I'll try and duplicate that method on my
Goldberg J3 and a Sig 1/4 scale J3 still in the box.

> >I have a Golberg Anniversary Cub and am replacing the flimsy original ABS
> >cowl with a fibreglass version. I had to cut the rear of the old one (to the
[quoted text clipped - 11 lines]
> Fred McClellan
> the dash plumber at mindspring dot com

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Model Forum / Radio Controlled / Air Models / October 2003

Engine Cowls