David;
I use a product by K&N the company that makes air filters. The 914 comes with
their cone filter. Any auto parts store or motorcycle parts department that
sells K & N products will have the liquid soap that is used to clean the
filter before it is re-oiled. It works great on the exhaust stain, just spray
it on let it set for few minutes then take a sponge and go over the area. Then
spray it off. Eassssy!!!!!!!!!!! And no harsh chemicals......
It also does a good job on white wing walks.
Jim Brown
david joyce wrote:
>
> Ira, I thought along similar lines and ended up cutting the end obliquely
> off my exhaust pipe, and angling it back a bit, modelling it on one of the
> earlier company planes which is widely pictured. It saved an ounce or two in
> weight,I cannot say whether it has helped it go fast (altough it certainly
> does that) but it definitely has (1) produced a sharper edge to cut the
> unwary head returning from looking up the engine compartment skirt, and (2)
> led to a tendency to stain the fuselage a nicotine like colour which seems
> quite a bit more marked than my contemporaries with untrimmed pipes! As I
> have a gel coat finish I can get this muck off from time to time with
> acetone, but guess it might be a real pain with standard paint finishes. Of
> course it may be unrelated to the exhaust and simply indicate that the carbs
> need tuning, but I doubt it. David Joyce----- Original Message -----
> From: <irampil@notes.cc.sunysb.edu>
> To: <europa-list@matronics.com>
> Subject: Europa-List: Exhaust Departure Angle
>
> >
> >
> > Greetings All,
> >
> > I recently enjoyed reading Ken Paser's "Economy with Speed".
> > It is essentially a study of the effects of applying 30-70 year old known
> > aeronautical design best practices (from NACA reports) to the improvement
> > of a modern homebuilt. The results is a much awarded and honored
> > Busby Mustang 20 or 30 mph faster than others of its design.
> >
> > One technique involves canting the muffler discharge into the axis of
> > flight to both mitigate the drag of the exhaust plume and simultaneously
> > gain a small amount of thrust.
> >
> > Has anyone experimented with the Europa's exhaust? Best angle, etc?
> > I know you donj't want to go straight back to avoid melting or staining
> the
> > fuselage.
> > Andy? Neville? Graham?
> >
> >
> > Regards,
> >
> > Ira N224XS
> > Panel in and Fired Up
> > Off the to Painters Soon :-)
> >
> >
>
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