13th International Indoor Fly In 2025, Nijmegen NL

[g_kandylakis]

And having registered just yesterday and being the newest member here, Jiri gets an extra post. He would get it anyway, of course, given what he brought to the competition, but did not fly.

B-17, electric with retracts. I do not know if it was good or bad that one motor was not working, so he did not get a chance to test it. For the rest of us I mean.

[g_kandylakis]

Amazing work and detailing, will be another Czech show stopper next year, I imagine.

Jiri uses his own made "Chronos" timers, which allow servo operation for restracts as well.

At some point he can present them in the forum too, I hope.

[g_kandylakis]

And to close the electric class of 7 entries, it was my Avro 504"O", the hydroplane version that I chose this year as my entry to spend another troublesome weekend.

It was always there, but not quite there yet. But getting closer.

First flight went very well and quite high but when the second phase came the model chose a straight path, heading for the distant rear wall. So I had to reach for the RC transmitter (blasphemy, at a free flight event, I know), thereby losing the flight but saving the model.

Second flight was even worse, more on that later.

Third flight was not as bad, but too banked, too low and of course too short.

And finally the fourth flight, a proper qualifying flight. Far from good, but good enough not to leave  the event completely dissappointed.

[Raggedflyer]

Re: wing wobble on undercarriage deployment...

My thought was also that it was related to asymmetric drag.

Is there a single servo or two? Are the linkages identical? Is there an obvious visual difference in speed/ movement?

Or is it that the deployment is identical but the outer wheel is flying around a longer turn radius?

[g_kandylakis]

I do not know the model interior details Maybe one of the czech guys here can add more light.

Back to my Avro, as I mentioned, the second official flight was worse. Exactly how much worse, I had to see it, nut also had to relive the terror.

So, during the first start attempt I dropped the dolly and had another problem. I hurried to the table and when I got back I did not notice it, but the front right wheel axle holder of the dolly had broken. So the wheel was not turning properly and acted more as a brake.

This led to the model taxying to the right, straight towards the judges table. In the tenths of seconds I had I tried to steer it away but all I could manage, by pure luck, was to start a roll to the left. But that proved more than enough. The model went at 90 degrees through the table legs and landed inverted tight after the table. No contact with the legs at all. A minor contact of the wing tip with the table underside did not cause any damage either.

I could not figure out how it managed to get out of that with no damage at all. The video explains it.

I couldn't repeat this in 1000 tries.

Thanks to Spiros for having taken the video, did not know he had it. His voice says a lot for that moment...

[g_kandylakis]

Mike Stuart's report of the 2025 IIFI is out:

https://www.ffscale.co.uk/page3ay.htm