On 7/12/20 6:05 AM, kinsell wrote:
On 7/12/20 3:09 AM, Tim Newport-Peace wrote:
At 01:17 12 July 2020, wrote:
LX is the only company who has devices for putting flights into OLC if
you have a FES system.

I think LX is also the only company that offers an ENL suitable for
turbine
(jet) engines. The audible frequency of jets sometimes does not register
with a standard ENL that is optimized for a piston/propeller
installation.

I think you may mean a MOP type 1b box, which filters to a frequency more
common with Jet engines.

ENL is always internal to the recorder, but MOP is usually a remote
sensor.


With a Jet, the main noise is from the Jet Pipe(s), so the sensor
needs to
be (ideally) mounted in a suitable place to the rear of the piles, which
usually mounting the sensor at the rear of the engine bay. Hard to put
a FR
there as it usually requires removing the engine to gain access.

If LXV is the only company to invest in designing, building and gaining
approval for a MOP box, it is not the fault of LXV. These are commercial
decisions by themselves and their competitors.

Also, it is OLC's decision to require a MOP type2 recorder for FES, not
IGC's.


Looking at LX Navigation (as opposed to LX Nav), they claim to have the
"Worlds first standalone MOP flight recorder with IGC approved sensor
for gliders equipped with jet or electric engines".Â* That makes it sound
like the same hardware is usable for FES or jets.Â* Which seems unlikely.

Withe the ear-splitting noise from a jet engine, you'd think they could
come up with a panel mounted ENL system that was suitable for jets.

Of course FES doesn't cover all all electric gliders, I suppose OLC will
have to change their rules again when the AS 34 and GP-15's start
flooding the market.Â* Any day now.



Oops, left out the Electric Libelle.