Putting a cable "TO" the firewall won't do a damn thing except wreck
your once-pretty firewall. Putting the cable "through" the firewall,
around some tubing members and back out through the firewall, around
some substantial partof the engine where it can't slip off....through
an unused hole, etc.,....then bring the cable ends together and
parallel to each other, and use cable u-bolts/cable clamps to secure
the ends together. At least that's the way I did mine.
The idea is to require the cable to break a weld, tear a piece of
airframe out, or do some other catastrophic damage in order to come
free with the engine. Maybe it'll just slow things down a bit....kind
of like an energy absorbing device. If some of that flailing engines'
energy is subdued, you stand a better chance of writing about the
incident on this forum....after a change of skivvies.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 814.7 hrs
Countdown to 1000 hrs~185 to go
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying (and learning)
On Nov 16, 2009, at 6:51 PM, Av8r3400 wrote:
>
> Sorry, guys. I'm not getting this at all.
>
>
> You recommend putting a cable to a light sheet-metal firewall?
> What will that do?
>
> Or through the firewall to the airframe? Do you expect the cable
> to be stronger than the bolts that bolt the engine mount to the
> airframe?
>
> Or is the whole purpose of this cable to be a backup in case the
> rubber engine mounts tear apart? This seems more likely, but isn't
> the mount designed to not completely separate if the rubber is torn
> out?
>
>
> I'm not trying to be a wise-guy here, just trying to understand the
> logic.
>
> --------
> Thanks,
> Av8r3400
>
> Kitfox Model IV-1200 W/912UL & IVO
> Kitfox Model IV-1050 W/912UL & Warp
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=273218#273218
>
>
