HPA

I have (better, had) a few principles in my modelling career. One was not to build the same model again in different sizes. There are plenty of subjects out there waiting to be modelled. Well, that went down the drain.

My PZL 24 CO2 model has had a good flying life, probably the best compared to other models of mine. But showing up again at an event with it was a cause for discomfort. I needed a replacement.

With only three months to go (now only two) for the coming IIFI I made the wild thought of repeating the build of last year, my Moth Major peanut, only slightly larger. The model flies nicely, the plan and documentation are already there, it i very simple to enlarge everything slightly and end up with a new entry for CO2.

Whether this works out in the end remains to be seen, so the PZL will be ready as a back up.

The model will be at 1/20 scale, about 46 cm wing span, which makes it a rather small model. This causes some questions regarding powerplant. I want to use again a Brown motor but they are a bit too large and powerful for such a small model. Which is ok, as long as they can fit inside the cowl. It is tight but looks feasible.

Work has started on the wings, one is completely finished, the other needs sanding and the other two need to be glued together.

So, not much to show yet. Starting with the wingtip laminations.

a mix of old and new, outline templates for the peanut version, riblets for the CO2 one and wing construction beginings.

And we have a wing, 3 more to go.

And size comparison with the finished peanut version.