Viso deployment altitude

[sovietskee 0]

Does anyone know if the deployment altitude on the Viso altimeter shows when the canopy is fully open or when the skydiver first starts to slow down during the deployment. I checked the manual but it doen't say anything.

Also same question for protrack.
thanks

[PhreeZone 20]

When the fall rate decreases to the point that the device thinks you are under canopy.

Yesterday is history
And tomorrow is a mystery

Parachutemanuals.com

[sovietskee 0]

so there is no concrete answer? Its somewhere in between pitch and fully open. That is sort of what I thought. I guess these gadgets can't be super accurate. Thanks.

[phoenixlpr 0]

How about checking your altimeter when you got your slider down?

Does it really matter? How was it before? Checking you exit altitude from an analog altimeter, than quessing your delay?

[sovietskee 0]

It really doesn't matter. From my experience it looks like it records when I'm fully open. I had gotten into a debate with someone at the dz who was saying that it records when you first start to slow down. I figured someone on dz.com would know the truth. Just curiosity.

[TheCapt 7]

I exchanged some emails with Mads Larsen regarding what event records my deployment altitude on my Alti-track. He wrote back advising, "when you first begin to slow down." Logically, that would occur at onset of line stretch. I assume the same algorythm is used for the VISO, but that is just an assumption.