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#1
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Netto bis
Hi
When I set my Lx 7000 to Netto, my vario needle indicate +1.8 kt on the ground. When I choose vario or relative vario the needle indicate 0. Why is that? Thank you, Gilles |
#2
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Netto bis
On 8/13/2011 3:25 PM, bish wrote:
Hi When I set my Lx 7000 to Netto, my vario needle indicate +1.8 kt on the ground. When I choose vario or relative vario the needle indicate 0. Why is that? Thank you, Gilles Because it's adjusting for your sink rate. On the ground you're not sinking. If you were flying the sink rate adjustment should have your needle at zero. |
#3
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Netto bis
On 8/13/2011 3:45 PM, Dave Hoppe wrote:
On 8/13/2011 3:25 PM, bish wrote: Hi When I set my Lx 7000 to Netto, my vario needle indicate +1.8 kt on the ground. When I choose vario or relative vario the needle indicate 0. Why is that? Thank you, Gilles Because it's adjusting for your sink rate. On the ground you're not sinking. If you were flying the sink rate adjustment should have your needle at zero. In calm air with appropriate polar information entered. |
#4
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Netto bis
On Aug 13, 9:25*pm, bish wrote:
Hi When I set my Lx 7000 to Netto, * my vario needle *indicate +1.8 kt on the ground. When I choose vario or relative vario the needle *indicate 0. Why is that? Thank you, Gilles Mine does the same. I assume that it is because it does not realise you are not flying, and the sink rate at minimum flying speed would be about 1.8 knots; since you are not descending, it thinks you are in air which is rising at 1.8 knots. This is what I have always believed, but it is just a guess on my part. I like netto mode for the cruise. Mark Burton |
#5
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Netto bis
The LX7000 in NETTO-mode is trying to compute what the air around you is doing.
Since your ship's (Computerized)polar tells the LX that it it should be sinking at 1.8 kt and the Vario information tells the computer that is is at zero sink, it tells you that the "airmass" around the ship is moving up at 1.8k. Note that once you have some airspeed (above the point where the polar-curve makes sense), the LX will take the sink at that speed from the polar and compare that sink to the Vario-indicated sink to compute air vertical motion. Heinz |
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