Regarding hole size

[eriksat1]

A new world record black crappie was just recognized 5 Lb. 7 oz. 19.25" length, with a 17.75" girth.
17.75" girth I would say you better have at least a 8" hole or that baby is not coming through.
http://wrec.igfa.org/WRecDetail.aspx?uid=69282&cn=Crappie,%20black#.W8eR0tdKiUl

https://www.wideopenspaces.com/possible-new-world-record-black-crappie-caught-if-dna-gets-confirmed/?utm_source=facebook&utm_medium=sendible&utm_term=hn&utm_campaign=hn

[FG Steve]

Wow, what a giant crappie!    I wish there were pics of it.

I would say you better have at least a 8" hole or that baby is not coming through.
http://wrec.igfa.org/WRecDetail.aspx?uid=69282&cn=Crappie,%20black#.W8eR0tdKiUl

If my math is correct:

Circumference of a 6" circle: 18.85"
Circumference of an 8" circle: 25.1"

Between holes freezing up a bit, and having enough wiggle room to get it in the hole, I agree with you.

[eriksat1]

Girth is the widest part of the fish in the middle of the fish. On a mainly flat fish it would be a little less than 1/2 the girth 17.75" divided by 2 = 8.875"

I added a link to the original post with pics.

[Seamonkey84]

Girth is the widest part of the fish in the middle of the fish. On a mainly flat fish it would be a little less than 1/2 the girth 17.75" divided by 2 = 8.875"

I added a link to the original post with pics.

So you serious crappie fishers better get out your 10” augers!
Does Tennessee even get fishable ice?! lol

[slipperybob]

It's still easier to pull up a 16+" crappie through a 10" hole.

[eriksat1]

So you serious crappie fishers better get out your 10” augers!
Does Tennessee even get fishable ice?! lol

No but Wisconsin does, and the WI. state record is not that far off, 4 Lb. 8 oz. 19-3/4" length. Only misses the world record by 15 oz's.

[Figure ate]

Girth is the widest part of the fish in the middle of the fish. On a mainly flat fish it would be a little less than 1/2 the girth 17.75" divided by 2 = 8.875"

I added a link to the original post with pics.

This math only works if crappies are 2 dimensional. A fish that size is easily 2-3 inches thick (3rd dimension). A more accurate calculation would be

[(17.75") - (6.28")] ÷ 2 + (1" + 1") = ~7.74" "tall"
[(Girth) - (pi x 2" thickness)] ÷ 2 sides of fish + radius of back arch + radius of belly arch = approximate height from belly to back.

An 8" hole will fit a world record crappie.

Disclaimer: this calculation, while more accurate, is still imperfect due to variance in crappie thickness and shape of back and belly arcs not being perfect half circles.

Disclaimer #2: I'm not super fresh on my order of operation so my equation structure semantics may be slightly incorrect, the actual math is correct.

Edit #1: removed arc diameter from equation explanation.

[Junkie4Ice]

 

This math only works if crappies are 2 dimensional. A fish that size is easily 2-3 inches thick (3rd dimension). A more accurate calculation would be

[(17.75") - (6.28")] ÷ 2 + (1" + 1") = ~7.74" "tall"
[(Girth) - (pi x 2" thickness-arc diameter)] ÷ 2 sides of fish + radius of back arch + radius of belly arch = approximate height from belly to back.

An 8" hole will fit a world record crappie.

Disclaimer: this calculation, while more accurate, is still imperfect due to variance in crappie thickness and shape of back and belly arcs not being perfect half circles.

Disclaimer #2: I'm not super fresh on my order of operation so my equation structure semantics may be slightly incorrect, the actual math is correct.

Why is your arc diameter 0"?

[Figure ate]

Why is your arc diameter 0"?

Because I wrote it incorrectly, thanks for the proof read. That section needs to be omitted.

[eriksat1]

That is why I said it would be a little less than 8.87" I guess what I am saying is it might be pretty darn tough to get a fish that size through a 6" hole. Yes a 8" should do it.

[SLAYERFISH]

Yeah I catch near world record crappies every year-

[marknpanfish]

 Sure would be a nice problem to have. Size isn't everything. At least that's what I tell my wife.

[eriksat1]

5 more reasons.
The 5 Biggest Ice Fishing Catches in Recent History
https://www.outdoorhub.com/stories/2016/03/31/biggest-ice-fishing-catches-recent-memory/