KimVlasblom

Thanks everyone. I'll move the tanks forward, but first need to ensure that I have space for a bell-crank for the throttle servo. (I don't have space for the servo in that area so will place it up on that top shelf/lid of the box. But it was the height of the tank that I was concerned about, and that question is resolved. 😃

They are indeed optical illusions. The tank (red line) is level with the 'shelf' you see at the top of the wooden box and the engine thrust line. The engine has no side thrust set up.

Thanks for your reply Jon! (I just tried to call, to ask you about this. I also need to sort out (purchase 😉)some bits to enable scale fitting my exhausts. It's a 25% SAAB Safir 91D. So you'd leave the tanks down this low? The exhausts on the prototype are shown in the below pictures, luckily two of them which should make life a little easier for me. I think I need to place the silencers just above the cowl, possible get a couple of yours with longer outlets? Otherwise add a small length of correct diameter tube to my existing ones somehow. And then some sort of extension from the ports to the silencers. I'm open to your suggestions. I could turn a fitting on the lathe to pop into the ports with your O-rings, and use flexible or plumber's tubing to extend down to the silencers...

I'm finishing the design of a model and choosing the position of the tanks for a Laser 200-V. I was about to line up the top of the tank with the carb intake but then I realised that if I do that, when the model is flying inverted, the tank will be way above the carb and that worries me. I suppose that lining up the centreline of the tank with the carb is then the safest bet... Is that right, or will it then give me problems? The image shows the tank lined up with its top at the carb intake height, which I am worried about when flying inverted.

I'm finishing the design of a model and choosing the position of the tanks for a Laser 200-V. I was about to line up the top of the tank with the carb intake but then I realised that if I do that, when the model is flying inverted, the tank will be way above the carb and that worries me. I suppose that lining up the centreline of the tank with the carb is then the safest bet... Is that right, or will it then give me problems?