Victorinox list thirty 91mm Medium Pocket Knives on their home web site, so I thought...mmm...sounds like a 30-day Challenge!
Seeing I have (almost) the complete range, I decided to give it a go.
So this will be my 30 Days and 30 SAKs Challenge, with a post of a different SAK each day for 30 consecutive days.
The spin is that it will be only 91mm SAKs, and I will follow the current range layer by layer, starting with the Compact tomorrow.
For those eagle-eyes, yes, the current 91mm range is actually only 28 knives as Victorinox list two Swiss Champs separately (Silvertech and Red), and technically, the Traveller Set is a Huntsman with Plus scales.
This challenge will overlap the September Modified SAKs Challenge, but I don’t mind carrying two SAKs, and it will be fun to compare a different current SAK each day to my Yeoman WS mod.
Below is a diagram showing the 91mm current range so you have an idea of the journey and can follow along.

Very nice idea, just be aware that you can only request one badge if you do two challenges parallelly. If that's not a concern for you, go for it! 

Not a worry, I’ll see which one at the end of Sept... 

You would also have the retired 91mm models to add in your 30 day. That would put you over easily. 
Good luck! 
On the side line 

And then some!
...I’ve got a couple in reserve to close out the 30 days, but you’ll have to wait to see what they are 

And then some!
...I’ve got a couple in reserve to close out the 30 days, but you’ll have to wait to see what they are 

Ill be here! 

Sounds like a fun challenge to watch.

 

Sent fra min FRD-L09 via Tapatalk

Oh I'll be following this 

Good luck with the challenge   

Thanks everyone for your support - here goes!

Day 1:
The 2-layer Compact is the sole representative in the current 91mm range that has the Combo Tool instead of the opener layer. Victorinox had others in the past, with interesting names like ‘Scientist’, ‘Engineer’ and ‘Yeoman’, but sadly these are all discontinued.
The Compact is a compromise of size vs. function, saving a layer but replacing the small blade with a tool intended to do multiple tasks.
The Compact is a popular EDC carry, especially for light-duty/light carry. The fact that it is vastly outnumbered by its more capable 91mm brothers should not detract from its abilities, especially in the size department, and that it has the excellent Victorinox scissors in the second layer.
Almost unique to the Compact, Victorinox added a small file area to the back of the Hook Tool. Not much use for more than touching up a rough fingernail, it is nevertheless a useful addition to this SAK.
The Compact also sports Plus scales, adding the useful pen into a slot on the bottom scale. Victorinox also adds the pin and mini-screwdriver accessories as standard.
Pros:
- Small and light
- Smallest 91mm to have scissors
- Plus scales
Cons:
- Combo tool is a compromise
- No small blade
- Expensive
Bottom line:
The most capable of the 2-layer 91mm SAKs, but overshadowed by the more popular Climber.

Nice way to begin  . 

Silly me, I read the title that you were going to do a day by day with a 91mm Ranger. 
This journey sounds fun Max, now that I understand the concept!
I will be looking in, I mainly carry the 91mm sized knives, along with a 58mm Vagabond. 
I enjoyed your first entry. 

A very good first day! 

Oh I'll be following this 

+1

 

Oh, man! There's no mention of The Hook in the chart!

 

Yup, I did not list all the back tools on the chart. 
The idea was an at-a-glance guide to highlight what’s between the blade and opener layers to help with identification. Some details got ignored 

I'll be following too, great start 

Cool description.  The Compact is the knife that got me really back into SAKs.  I even have a custom modded one with the phillips and awl in place of the corkscrew and hook as back tools.

As you said, I also think it is a shame that they discontinued and do not make more with the combo tool.

Thanks 🆘 and Greg! 
Day 2
The Spartan is a 2-layer SAK that really defines the whole 91mm Victorinox range, having the base tools that almost all other Victorinox knives have.
The fist layer holds the large and small blade, while the second layer holds the openers that also do duty as screwdrivers. The back tools includes the ubiquitous corkscrew and awl.
Starting life, in its current design, known as the Standard, the Spartan has essentially the same tools as the original Officer’s Knife going back to 1897 (SAKWiki image below), so owning a Spartan is in a way, owning a little piece of history.
Most 91mm SAKs are based on the Spartan. The openers and blades stay as the outside layers, with new layers and tools added in between.
Benefiting from being only 2-layers, the Spartan almost disappears in any pocket, but still has some of the most useful tools on a SAK. It is the most popular 91mm SAK, and the most affordable in the range.
Pros:
- Easy to carry
- Good set of essential tools
- Very affordable
Cons:
- Only covers the basics
Bottom line:
The closest to the original Officer’s Knife, the Spartan represents the core values of a Victorinox SAK; compact, versatile and affordable. The Spartan rightly holds the spot at the top of the family tree as the original 91mm SAK. 

 
With the history, you've convinced me I have to have a Spartan 

Cheers Greg! 
...you won’t be disappointed. 

I like that older one in the very first photo. Wish I could find. Great information! 

The Spartan has a great name and its a must for any collection. 

I enjoyed the read for day 2.    The Spartan never has the hook no matter how new it is, which is a plus for some.

I enjoyed the read for day 2.    The Spartan never has the hook no matter how new it is, which is a plus for some.

True and I believe its a sissors thing...sissors on the top and hook on the bottom.

Nice write-ups on each SAK for Days 1 and 2 Max!

Great idea this thread! 

Thanks Rapidray, Aloha, FB, Mini, VICMAN