Thanx, the length of the intakes are set by the location of the engine, if I move away from this it will affect the CG and I really dont want to put unnessesary ballast on as I think this model will weigh about 14 lbs....already way heavier than I wanted it :-(

This week I will experiment with a splittle plate and report back, I really hope it will imporve the power of the fan, granted it will not fix it 100% but every but helps.
If I can get round 10Lbs static I am happy, I also think that this engine needs to move forward into clean air to make the correct thrust, just sucking it in while stationary I think makes the engine/ intake setup work to hard.
Now I just need to figure out a way to make said splitter plate. I was thinking of epoxyglass board or even 2024 alclad that I can screw to the intake. The very last thing I need is a gluejoint only that might come loose over time and going into a 20K rpm fan!

Theuns