"john smith" wrote in message
...
In article ,
Matt Whiting wrote:

When you are pulling negative G, there is no one natural G force. It
takes -1 G of acceleration to counter gravity and get you to 0 G. You
can then add -1.76 G of additional acceleration and still be within load
limits. The negative G load factor is referenced to 0 G, not 1 G
straight and level.

Is negative G an up force or a down force?

I'll disagree, here.

Straight level flight, right side up is 1 G

Free-fall, so you are not touching the seat or seatbelt is O G

Straight level flight upside down, is -1G

If the plane is upside down, and pushes up elevator, until a100KG weight
weighs 176KG, that is a -1.76 G factor. Not much extra for upside down
flight, is it.
--
Jim in NC