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To: lml
Date: Mon, 26 Jun 2006 20:34:28 -0400
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From:  <rfroelich@cox.net>
Subject: LIV Stalls
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I tufted the wings of an early LIV (four gear door version, two per side) and stalled it a number of times to videotape the stalls.  We  had two LIV pilots on board, one videotaping while the other flew.  In all but one stall the right wing dropped and the plane never went through more than 60 degrees of turn.  Only once did it stall straight ahead.  

The aerodynamicist who reviewed the video, had never seen the tufts go inboard at the stall (which was what happened).  He recommended extending the wing root fairing further back on the fuselage, to overcome this abnormality.  Later models with just two gear doors on the mains (one per side), have extended the fairing.  Am anxious to check tufts in stalls on the one I am currently building.  

I did hear back in the 1990's of one LIV loosing 8,000 feet before being able to recover from a stall/spin.  

Robert Froelich