----- Original Message -----
Sent: Wednesday, April 20, 2005 10:27
AM
Subject: [FlyRotary] Re: New
Rotors!
Those numbers do not make sense. Aren't the seal 2 mm?
How will they fit in a 1.778mm groove?
Finn
Ed Anderson
wrote:
Got the new rotors today - first time I've ever
seen a new rotor - the are bright metallic {:>).
The depth of the apex
seal slot on the new rotors ranged from 9.65mm to 9.77 mm.
Interestingly the width of the bottom of the apex slot was 1.88mm but the
top was narrower at 1.778mm. I noticed that the lip of the apex seal
slot had a tiny burr of metal along it as if they were not using a sharp
enough tool or else pushing it along too fast. Or perhaps no one took
the time to deburr the slot.
Just in case any of you ever wonder whether you
are looking at a 9.7:1 rotor or some other rotor, there is a fairly easy way
to tell. Lay a straight edge across the depression in the rotor and
measure from its bottom to the center of the depression, it should measure
right at 4 mm. The 9.1 measure around 7mm for comparison. Just
thought you might want to know.
Ed