I can't speak to operational issues affecting carb ice, as N135TD is still a
couple of months from flying, but I would like to put in a plug for the Sky
Drive carb heat kit from an installation viewpoint. The kit is 100%
complete, the parts fit perfectly without fiddling, and the instructions are
very clear. Since it doesn't reduce engine power while heating, we left out
the on/off valve, simplifying the installation down to a job of only a few
hours. With a system that works even if the pilot isn't entirely on the
ball, it wasn't a difficult decision to add this to our 912S.
Dave DeFord
A135
----- Original Message -----
From: <BRYNALL@aol.com>
Subject: Re: Things that go bump in the flight/Carb ice?
> Rob. I think you may have it!
>
> I do have a rebated wing; viz the root fairing butts into the fuselage
> profile. I can see Andy Drapers suggestion
> that the butt of the fairing could clip out with a loud noise under a
heavy
> turbulence loading, makes sense. Perhaps once out it stays there until you
> land and release the wing loading. Hence no repeat bangs. I will check for
> signs.
>
> The second choice to me is an outrigger banging on it's stop in
turbulence.
>
> The third choice for me is carb icing. I would really like to find out a
bit
> more about the symptoms of carb icing on a 912or 912s before forming any
> opinions. Preferably through other peoples experience. I really did think
> that it was not a problem for us Europa folk, after all the kit is
> enthusiastically sold as not requiring such an old fashioned device. Yet
here
> we have company people telling us that you do need a heater, and in
Florida
> of all places. Bob reported it and Jim Thursby has just confirmed it,
thanks
> fellers.
>
> I wonder if anyone who has experience it could provide a little more
detail.
> I can imagine the awful emotions of sputtering over the channel. But what
> does happen? Does the engine give the occasional bang to herald icing. or
> does it splutter on?
> Has anyone experienced a Rotax equipped Europa cutting out altogether?
What
> engine settings make it more prevalent? Can you change settings to stop
it?
>
> My engine does run cool, (75*c for oil and water) Does this make BYSA more
> vulnerable? Should I Blank off a little in the winter to raise these
temps?
>
> Having experienced one engine failure in my life, I do not wish to push my
> luck a second time. Up until this subject correspondence I was very happy
to
> confirm that my little lady would fly in the worst conditions without a
sign
> of carb icing. A week ago I was amused by the fact Kissimmee airfield in
> Florida was closed VM because the three mile marker was not absolutely
clear
> in light mist at 84*F We would not have hesitated to get off the ground
back
> in the UK. I was really set back to find that the Europa cant handle those
> conditions without icing. It really worries me. It makes it sound that we
> would be foolish to take our ships up in the winter here until we have
> converted to carb heaters.
>
> Happy landigs....Bryan Allsop
|