I can't see the attraction in electronic TE. There
is no theoretical advantage in taking your pressure
data from two probes instead of one - it just introduces
a possible time error between the sources. Also glider
statics and static probes are much more sensitive to
yaw angles than a well designed TE probe. (Only the
flat Brozel designed STATEK probe is more yaw insensitive).

My (ex) 302 in a Duo was much better on the TE probe
then with electronic TE.

For motor gliders it doesn't matter if there is no
TE with the engine running. Just switch the TE probe
to static and if there is a fin pitot switch it to
a nose pitot.

BTW - if considering a triple probe for a MG get a
double TE/static probe instead. That way the varios
etc can take dynamic pressure off the fin pitot (switchable
to nose with the engine on), the TE can be switched
to static and the double probe static won't be bothered
much whether the engine is running or not. Thanks
to Karel Termaat for that scheme - as used on his Ventus
2CXT.

John Galloway