Anyone know where the gauge is located in the Baron 58P that tells how much oxygen is left in the tank.  It's there in the normal aspirated version but not the TC/P version (at least from what I can tell).😶

58P is pressurized 

If you ,mean the TC model it is just right of the right mixture lever, low down.

If you open the checklist and look at the pre flight list and click the oxygen gauge 'eye', it'll take you right to it.

14 hours ago, sd_flyer said:

58P is pressurized 

It still needs an oxygen flow above 12,000ft.

3 minutes ago, Dillon said:

It still needs an oxygen flow above 12,000ft.

It's above cabin pressure 12500ft if you fly more than 30 minutes in unpressurized airplane you will require oxygen (for crew). above 15000 ft for crew and passengers Regardless, 58P has pressurized cabin. If cabin pressure gets above 11500 ft you will get a warning. 

 

 

Pretty sure you can also look at the EFB if you want to cheat haha 

IIUC, under Part 91, emergency oxygen is not required for pressurized aircraft if operating at FL 250 or below:

https://www.ecfr.gov/current/title-14/chapter-I/subchapter-F/part-91/subpart-C/section-91.211

So this is why it appears the 58P modeled here simply doesn't contain an oxygen system. Notably, the "Cabin Depressurization" checklist also makes no reference to oxygen use.

I would assume some real-world 58Ps do have an oxygen system. It does seem like it would be nice to have the option to use oxygen, as the low maximum differential pressure means the cabin altitude can get quite high, but then the system comes with a weight penalty and needs to be maintained, so I guess this is down to owner's preference.

1 hour ago, martinboehme said:

IIUC, under Part 91, emergency oxygen is not required for pressurized aircraft if operating at FL 250 or below:

https://www.ecfr.gov/current/title-14/chapter-I/subchapter-F/part-91/subpart-C/section-91.211

So this is why it appears the 58P modeled here simply doesn't contain an oxygen system. Notably, the "Cabin Depressurization" checklist also makes no reference to oxygen use.

I would assume some real-world 58Ps do have an oxygen system. It does seem like it would be nice to have the option to use oxygen, as the low maximum differential pressure means the cabin altitude can get quite high, but then the system comes with a weight penalty and needs to be maintained, so I guess this is down to owner's preference.

Wow, I think this answers it!💯  Much appreciated.👍

Edited November 18, 2025Nov 18 by Dillon