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WHEN TO USE OTHER NEEDLE SETTING ON CARB

  • FEDERICO COMPEAN
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3 weeks 3 days ago #17368 by FEDERICO COMPEAN
FEDERICO COMPEAN created the topic: WHEN TO USE OTHER NEEDLE SETTING ON CARB
Hi,

I have looked and asked around and have yet to find a person that tells me they run their needles on a different setting than the middle one (third position) on their carburators.

I am flying mostly (80%) out of a filed at 6,000ft elevation. Of course I will visit the beaches and lower elevation areas, but the base airport is at 6,000.

Would this merit using any other setting rather than the third?
What can I expect if I change the setting to a leaner one? More power? Hotter temps?

Thanks

Fredy

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3 weeks 3 days ago - 3 weeks 3 days ago #17369 by Roger Lee
Roger Lee replied the topic: WHEN TO USE OTHER NEEDLE SETTING ON CARB
Hi Fredy,

If you flew out of that 6K ft. airport and stayed above that all the time then going to the #2 position wouldn't be an issue. I would be vigilant about doing so going down to sea level especially on a cold morning. If just the right conditions arose you could be on the lean side. Prop pitch will play a big factor in sea level vs high altitude flying.

p.s.
You could just leave it on the #3 clip position and it will still run fine to your higher altitudes.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-574-1080 Home (TRY HOME FIRST)
520-349-7056 Cell
Last Edit: 3 weeks 3 days ago by Roger Lee.

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