What can you do to restart your ramp start if you mess up your JFS?

[DarkFib3r]

During a ramp start, I have occasionally turned my JFS on but then accidentally turned it off right after. Once that happens, I have been unable to turn it back on and complete my ramp start. Is there a way to re-start the ramp start sequence if the above happens? Or perhaps more specifically, how can you get the JFS switch to re-engage if you mess it up by accidentally switching it off during your start-up?

BTW, I am now extremely cautious of messing up the JFS switch. Regardless, with my mouse it is easy to accidentally right-click with it and if I happen to be over the JFS switch, off it goes. Knowing how to recover in-pit would be awesome!

[WolfKeeper]

Start over unfortunately.

There was a rather lengthy thread some time ago about this, and what you would have to do in the cockpit to refill the JFS bottle (or the ground crew manually refilling it.)

https://www.benchmarksims.org/forum/showthread.php?16923-Ramp-Starting-JfS-restarting

https://www.benchmarksims.org/forum/showthread.php?6783-An-explanation-of-the-JFS

[DarkFib3r]

@WolfKeeper:

Start over unfortunately.

Thanks! Knowing this will make me even more diligent with that switch!

[jethomasjr]

Since you use “Start 2”, that depletes both bottles. Your crew chief will have to go get the T-handle and pump it back up. It takes 200 pumps by hand to get the bottles to a pre-charge 2850-3250 psi. Your all set to hit the “Start 2” switch again. I know this from hands on experience.

[Agave_Blue]

@jethomasjr:

Since you use “Start 2”, that depletes both bottles. Your crew chief will have to go get the T-handle and pump it back up. It takes 200 pumps by hand to get the bottles to a pre-charge 2850-3250 psi. Your all set to hit the “Start 2” switch again. I know this from hands on experience.

My BMS crew chief failed to respond by radio call. I gestured with great vigor and animation, but to no avail. I opened the canopy and called repeatedly. No response. Rat [email protected] appears to be on a permanent smoke break. Do you have any advice on getting this blue-suited BMS slacker to straighten up and fly right?

[Shadow]

Get to that in 2/3 weeks. Mean while just orderin

[Seabass]

I just press that white caution reset button below the batt switch and it lets me start the engines up again, though I may be talking about something completely different.

[Frederf]

Overcurrent Sensing Contactors
The eight overcurrent sensing contactors protect
certain ac buses; stations 3, 5, and 7; and inlet
stations from overcurrent. The ELEC CAUTION
RESET button on the ELEC control panel is used to
reset a tripped overcurrent sensing contactor on
nonessential ac bus No. 1 and the nacelle
nonessential ac bus. The overcurrent sensing
contactor may not remain reset if the fault persists.
The items with a nonresettable overcurrent sensing
contactor are the radar ac bus; stations 3, 5, and 7;
and left and right inlet stations.

Probably won’t do it. I was just walking a nugget through starting the F-16 engine the other night. “This is time-sensitive.” “You get one chance at this.” Still muffed it. We all do it when we’re learning. There’s no better teacher than that dumb-face feeling of sitting in a $20M jet that ain’t doin’ nothin’ cuz the stick jockey flubbed moving a lever.

[Seabass]

Ok.

[condor]

iirc no one uses start 1… the LM checklist says start2 so so we just have to be carefull with that swich….

[l3crusader]

Im pretty sure you cant even do start 1. IIRC, you can only left click the switch, and it does the start 2.

[Dee-Jay]

Yep. Only start JFS on two accumulators is implemented in BMs.