Mailing List flyrotary@lancaironline.net Message #66144
From: 12348ung@gmail.com <flyrotary@lancaironline.net>
Subject: NSI gearbox clutch
Date: Wed, 29 Jul 2020 08:57:10 +1000
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

Can anyone help?

                                     Have a bloke in Oz with an NSI Subaru engine  package.  Managed to land near me to find that his “sprag” clutch has disintegrated.  Only going by phone calls and a photo, but it seems to need a new set of springs that hold the clutch in mesh.  The drive “dogs” appear all ok.  NSI must have sourced this clutch from a commercial place, we just have to find where??   

                So since it would have been the USA, can anyone shed light as to a likely source??   Seems that the clutch has already had an “overhaul” so the parts must be available?

Apparently the engine is rated at 190 HP and as usual that must be downhill in a dive, says it is more like 170 HP.  The clutch is very small  (3 inch od)and goes just behind the prop, so cops all the geared thrust.  No rubber at all just metal to metal.    Still is has 600 hours on it with at least 1 rebuild in that time.

Neil.

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