[Rob P]

I do recall we were promised lightweight low cost, mode S transponders a few years back. Did miss them?

Rob P

[gfry]

I do recall we were promised lightweight low cost, mode S transponders a few years back. Did miss them?

Rob P

Maybe I missed them. the only reason I am really thinking about it is because of the Brize proposed changes. And even then I am literally right on the south western edge of the changes.

[gfry]

Mode S really???

https://www.ebay.com/itm/152910504906?ViewItem=&item=152910504906

[Dave W]

Of course if thats a load of ole tosh then I am open to the idea that I possibly have forgot.

No, it's not - I was being flippant. Sorry; it's the dogma that denied conspicuity from Mode C that frustrated me.

[gfry]

Of course if thats a load of ole tosh then I am open to the idea that I possibly have forgot.

No, it's not - I was being flippant. Sorry; it's the dogma that denied conspicuity from Mode C that frustrated me.

bugger you got me

[Morten]

Just out of interest, why is a transponder (certified or not) significantly more expensive than a radio (certified or not)?

Yes, it's much higher power, but the function itself is much simpler?

Morten

[Muzzlehatch]

As yours is an LAA permit aircraft and as you currently have no transponder fitted, having one fitted is obviously not compulsory on your aircraft. Why fit a Mode S ? You can still fit mode A and C where carriage is voluntary.

LAA TL 3.03 "Although Mode S units are mandatory in certain areas (e.g. above FL100, the London
TMA, transponder mandatory zones, etc – full details in UK AIP-GEN 1.5), it is still permissible to
install Mode A or C units on aircraft where transponder carriage is voluntary." (my bold).

I know that's true as we have recently fitted a Mode C to our Jab which had no previous transponder, with no approval issues.

[gfry]

As yours is an LAA permit aircraft and as you currently have no transponder fitted, having one fitted is obviously not compulsory on your aircraft. Why fit a Mode S ? You can still fit mode A and C where carriage is voluntary.

LAA TL 3.03 "Although Mode S units are mandatory in certain areas (e.g. above FL100, the London
TMA, transponder mandatory zones, etc – full details in UK AIP-GEN 1.5), it is still permissible to
install Mode A or C units on aircraft where transponder carriage is voluntary." (my bold).

I know that's true as we have recently fitted a Mode C to our Jab which had no previous transponder, with no approval issues.

Wow, nice one. I had no idea.

[nallen]

Just out of interest, why is a transponder (certified or not) significantly more expensive than a radio (certified or not)?

Yes, it's much higher power, but the function itself is much simpler?

Time to get the soldering iron out: http://lea.hamradio.si/~s53mv/avionics/transponder.html

(This guy's front page has lots of fun home-made avionics.)

[peter272]

Wow - you can still fit a Mode A to a Permit aircraft???? WTF

[letpmar]

You cannot fit anything other than a mode S transponder if you are starting from new.

[riverrock]

Mode S really???

https://www.ebay.com/itm/152910504906?ViewItem=&item=152910504906

Yes
http://www.bendixking.com/Products/Discontinued/KT-70

[patowalker]

A waste of money if it isn't on the ETSO list. https://www.easa.europa.eu/node/15637

[gfry]

A waste of money if it isn't on the ETSO list. https://www.easa.europa.eu/node/15637

I am not sure that's correct....

1) Its an LAA machine
2) There is no Bendix/King equipment at all on that list.

[T67M]

Bendix King trade as part of the Honeywell Corporation, and their products are thus listed under Honeywell, not Bendix King.