| Chris,a simple moulding technique for making Turboprop engines is the use of ordinary florists Oasis as a mould,simple obtain two small blocks and sink one half of the pattern nacelle into the Oasis,next place two small pieces of dowel into two corners fixing these with a dab of epoxy,these simply act as register locators for the mould,next place the other block over the other half of the pattern and press the two together firmly,you now have the basis for your engines,next mix up some quick drying car filler such as Davids P38 which comes in two parts ie filler and hardener,apply with a spatula into each half of the nacelle mould,now quickly press together and allow to cure for the respective time,best to remove from the mould when still slightly soft,by doing this you can easily trim up the parts,finally allow overnight to really harden and the next day sand them up with a Permagrit block or similar sanding tool,give a coat of primer and attach to your model.
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