USA AAT scored distance issue on LX9xxx series

[Tango Eight]

Is there any way to get the 9070 to calculate distance/speed correctly on AAT task using the USA 5 mile radius start cylinder?  "Start out the top" -- which I think is the correct option for USA rules -- seems to calculate distance from the center of the cylinder, which can add up to 5 miles to the scored distance.  

best regards,

Evan Ludeman / T8

[Andy Blackburn]

M glider is in the box but I recall on the start configuration page there is at least one option to “shorten leg distance” or something like that. I think it’s the same page where you select start out of the top.

Andy

Sent from my iPhone

On Dec 23, 2025, at 8:25 AM, Tango Eight <tango...@gmail.com> wrote:



Is there any way to get the 9070 to calculate distance/speed correctly on AAT task using the USA 5 mile radius start cylinder?  "Start out the top" -- which I think is the correct option for USA rules -- seems to calculate distance from the center of the cylinder, which can add up to 5 miles to the scored distance.  

best regards,

Evan Ludeman / T8

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[Tango Eight]

Thanks, Andy.

This seems to solve the scored distance/speed problem on the first task leg in the sim (9.0.20).  However, as soon as one enters the first turn area the scored distance changes abruptly to scoring from the start center.  With any luck, this bug is confined to the sim...

best regards,

Evan

[Andy Blackburn]

Word! I never noticed that. But then I haven’t done a start cylinder in a few years. Maybe this year.

Switching the measurement system on the fly is almost certainly a bug.

I believe you an also make the selection for the finish ring. Might make a difference on that marginal final glide to have two miles added.

IIRC the elections are something like:

- Shortern leg distance

- Navigate to closest point

Happy Holidays!

Andy

[Andrzej Kobus]

Evan, it has always been like that. I inquired about it probably 10 years ago. LXNAV responded it was as designed, so no joy.

[Uroš Krašovic]

Please try to check "navigate to nearest point" under task options.

Best regards, Uros 

V V tor., 23. dec. 2025 ob 21:06 je oseba Andrzej Kobus <soa...@gmail.com> napisala:

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