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Well, Rusty
I finally got the new Monster
prop on the aircraft and most of the spinner work done. Boy, does it make
a difference in the looks, I used to think my old prop just had a small portion
sticking out beyond the cowling (especially when viewed from back of the
aircraft), but the monster prop really sticks out there. Looks like it
should really haul this airplane along quickly.
Good news is that the shaft fitted with no lapping
required and I have 9" prop clearance ( I though I was only going to have 7" the
min that Van recommends). For some reason My RV-6 sits with the nose a bit
higher ever since I replace the old nose gear rod with the newer beefier one -
appears it does not deflect as much as the old one under the
weight.
For this test period, I am putting the old manifold
(Ver 2) on that gave me 5600-5800 static as don't want to have the prop trimmed
for an anemic engine {:>).
Interestingly today, I was replacing the old home
made boat anchor manifold that I had used for testing my variable intake.
I had taken off the old slab boat anchor a day or two ago but left the manifold
gasket attached to the block. When I went to adjust the gasket prior to
putting on the ver 2 lower manifold, I found the gasket on backwards! I
was shocked because that orientation covered approx. 1/2 of the primary and
secondary intakes!! You don't think I flew with it that way while
testing my variable length manifold do you - Naaaa! It must have fallen
off when I removed the slab manifold and I just slapped the gasket back on the
block and flopped it in the process - right? Hummm, I wonder what the
effects would have been IF I had flown with it on backwards - would power have
suffered??? Was my test of the variable intake invalidated because of a
misoriented gasket - Naaaaa!! I probably would not have produced enough
power to get airborne - but it was curious that varying the length make no
difference at all, Hummmm. I plan to try a different version of the
variable length in the near future - this time I'll pay particular attention to
gasket orientation.
In any case, I should be ready to fire it up by
Monday and do some ground tests and hopefully get airborne during the later part
of the week.
By the way, I don't recall hearing any comments
from you about any increase in acceleration on take-off. Was there
any? I know you indicated the P effect increase was quite noticeable - but
how about acceleration?
Ed
Ed Anderson
RV-6A N494BW Rotary
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Matthews, NC
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