John Gibbons wrote:

Don,

    You might take a look at this site. I tried to find NSI on the web 
but couldn't,  these guys supply NSI props out of Canada. Maybe Ken knows 
if NSI is still around. I flew a Glastar with one of these props on and 
I liked it. What I liked is you can start up in a flat pitch so you're 
not chucking gravel around and it is reversible. It is a little awkward 
backing a taildragger up, but anything you can do that no one else can, 
is fun. I plan on floats and I like to be able to back those up. There 
is a lock out on them so you cannot go below 10 - 12 degrees of pitch 
until you are running below 1000 RPM. The idea with this is you fly at 
WOT and coarsen up the prop for max cruise but I had a feeling that the
 prop started to stall up around 24 - 26 degrees. The only thing I did 
not like was that the pitch indicator was digital and the brushes on 
the back tended to flutter giving wild fluctuations on the display. 
I think an analogue display might be better or perhaps there is a 
way of compensating electronically for the brushes.

http://www.westernaviation.bc.ca/engines.htm#Propellers

John

If NSI still has anything to do with it I would be very cautious indeed.
They have taken peoples money in the past and not delivered.
Engineair principles even went so far as to get a judgment against them.
If I ordered anything from them I would not pay for it in advance.
I would also be leery of accepting something from them COD until I proved
it to myself that it actually worked as advertised.

Paul Lamar
 
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