Wren Turbines Ltd. MW54 Mk2 & Mk3 Turbo-Jet, kit assembly instructions, Jun 2004
Page 31
On rare occasions an engine has been known pick up a stone from the runway and ingest it, causing a dent on a compressor blade. If this has
happened do not run the engine hoping it will blow out through the turbine as it can cause much damage to turbine blades and ngv if trapped
between ngv and turbine. The engine can be dismounted and shook with the compressor end downwards and often small stones etc will drop out.
Otherwise it must be stripped and the engine checked thoroughly for foreign objects and cleared. A dented compressor
must
be replaced –
straightening is not possible as a stress fracture will form at the bend point. Most dents on compressors with internal installations, are caused by
debris left in the plane by the builder which the engine has “found” whilst doing a take-off or other manoeuvre which causes all the loose bits to fall
to the back of the aircraft – unfortunately straight into the engine intake!
At Wren we had an engine brought in which refused to start. On investigation it was found to be full of sponge which had been used in the model
to restrain batteries. This had become detached and sucked into the engine and shredded on its way in, completely blocking the diffuser and
preventing air getting through the engine. It can and has happened and can happen to you if you are not extra careful!!
Please practice good housekeeping and eliminate damage from FOD – Foreign Object Damage.
Keep you and your MW54 healthy!
Above all, enjoy!
Parts and accessories for this engine are available from Wren Turbines Ltd. Please state your date of purchase to help us ensure the right part is
supplied.
With thanks to all our past and present customers whose continued support have made this update of our kit worthwhile.
Mike Murphy
Wren Turbines Ltd
June 2004
Wren Turbines welcome feedback on this or other of their products, email on
Wren Turbines Ltd, Unit 13, Century Business Centre, Manvers Way, Manvers, Rotherham, S63 5DA, England
Tel +44 (0) 1709 300290, Fax +(0) 1709 300291
Summary of Contents for MW54 Mk2
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