Bryan,
About 8 or 9 inches with a 70.25" two-bladed Hartzell, half a fuel
load with no people or baggage in the plane. However, here are some
variables to consider:
1. I maintain a 2.75" distance between the top of the nose strut flange and
the bottom of the strut seal when measured in 60F to 80F ambient
temperatures.
2. Some people have placed a spacer between the flange and
fork in order to increase clearance (I have not).
3. I have shimmed up my engine, using 1/8" spacers, to eliminate the
appearance of sag (mismatch of spinner to cowl top). This can have the
effect of raising the prop clearance by about 1/2" for each such spacer that is
used.
4. If one is using TK-5s (debongers) instead of the kit standard
donuts on the mains (I am), there can be a dramatic difference in the
nose up angle when the plane is loaded with souls, fuel and baggage. The
TK-5s compress somewhat when under load, yielding greater prop
clearance, while the donuts do not.
Scott Krueger
AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)
Pilot
not TSO'd, Certificated score only > 70%.
In a message dated 7/20/2008 5:58:42 A.M. Central Daylight Time,
vonjet@gmail.com writes:
Can any
of the 320/360 flyers give some input on how much ground clearance of the prop
you are gettting? Please state if your prop is 2 blade or 3 and brand
along with ground clearance. Really appreciate it.