Tom,
Finding suitable "scale" netting for models can be a challenge. I just checked a mosquito net I got that fits over a hat and down to the shoulders. It has hexagonal openings! The net is necessary if we go into the Oregon Cascades in July. Without it you run the risk of dying from blood loss! Actually, wee just go in June or wait until August.
But I found in my stash a bit of veil that my wife used for a gown or costume she made for one of her sisters. It has a square mesh with 0.372" per 10 openings, or about 0.0372" square openings.
That is equal to:
3.72" at 1:100
5.36" at 1:144
7.44" at 1:200
I'm not sure what the actual opening size was on the nets on the flight deck lifelines on the OK City, but it looks like it was about 3" (guestimating from photos). So this net will work OK when I build my 1:96 model. It would be too coarse for 1:200, but it might be OK at 1:144.
I have also seen fine mesh netting used to wrap floral bouquets and often lilies come with a net tube around them that is pretty small openings when not stretched.
You might find some veil material on Amazon or sewing supply places. Another place to look would be scientific supply places. Different size nets were used to separate granular material into different size classes.
McMaster-Carr always seems to have just about everything so it would be worth a try.
Phil
I checked McMaster and they have plastic netting in 23 sizes with opening sizes from 0.0944" down to 0.0011".
3" at 1:144 = 0.0208"
McMaster has a 30x30 net with opening size 0.0236" and "wire" diameter 0.0096" and 51% opening. It is $17.09 for 1 foot by 45". 0.0236" = 3.34" at 1:144. That's just about perfect! But the "wire diameter" is a bit coarse. 0.0096" = 1.38" but that's a lot better than nothing!
https://www.mcmaster.com/netting/plastic-mesh-7/