Removing the weight limit?? I do not think this is a good idea. It would likely lead to heavier gasoline powered biplanes. A 6,5kg gasoline biplane with plenty of power would be a more “stable” airplane and present better.

Removing the size limit. I can’t believe anyone seriously is suggesting this. Bigger, heavier and more EXPENSIVE is not what we need. It’s difficult enough already to transport the airplanes for the large events (WCh, ECh, etc).

The only problem I see with the current weight rule is the injustice between electrics and ic power. The fact that glow airplanes are allowed to takeoff at a higher weight is not good. It also makes the already expensive electric airplanes more expensive since they are more difficult to get below the weight limit (without the top bling bling products).

Here is my suggestion. Instead of having a “dry” weight limit, set the limit to a maximum takeoff weight. I would say 5,5kg. Yes it may sound difficult at first, but if the weighting is done at the flight line it should not add much more complexity for the organizer. At large events airplanes are randomly weighted after the landing (to control the <5kg limit). The scale is already there. I would instead suggest that before takeoff the airplane is weighted (say 2-3 pilots ahead of your start). The pilot should not be aware of the readout on the scale. If the weight is over the limit the pilot should still complete his flight (similar to how the sound test works). Later the jury decide what to do. Either disqualify the flight or, perhaps more appropriate, subtract points from the score of that flight accordingly to a given “punishment” scale.

Having a maximum takeoff weight would, in my opinion, make it fair between electrics, gasoline and glow setups.

/David