Hi Dave
Have you had your prop dynamically balanced as this may be the cause of your
vibration?
The Europa pitot and static sources were originally mounted on the fin tip
and fuselage sides respectively. Both were moved to the wing due to errors
and variation between individual aircraft. The helical airflow due to the
prop makes the use of a fuselage static unpredictable. The factory had tried
many setups before resorting to wing mounted static so probably best to stay
with that.
Nigel Charles
----- Original Message -----
From: <DJA727@aol.com>
Subject: Europa-List: Engine mounts
>
> Hello all,
>
> I now have 4.3 hours of flight time on the Mini U2 with very few problems.
My
> main complaint is vibration from the engine/prop combination. The stock
motor
> mounts are as if made of rock, so I went with the modification today to
> replace them with continental O200 engine mounts. They are noticeably
softer
> and when installed (about a 3 hour job) the engine has significantly more
> movement than before. This seems to be a quantum leap in flexibility. I
have
> yet to run it and I know they are installed correctly.
>
> My question: Have many people changed these engine mounts? It seems like a
> good idea, but the amount of motion (mount flexibility) surprises me.
Anyone
> out there with similar experience?
>
> BTW - I found a speed difference of 6 knots between the wing static system
> and cabin static -- cabin reading higher. Since the airplane is stalling
at a
> faster speed than I expect on cabin, I suspect that the pitot static on
the
> wing is better. I also wonder about how the holes on the side of the wing
> static are clocked with respect to vertical. I did mine at 1:30, 4:30,
7:30
> and 10:30. Has anyone tried to make a static port on the side of the
fuselage
> aft portion like many airplane do (my twin comanche for example?)
>
>
> Dave
> A227
> Mini U2
>
>
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