Forum: F-16 Design & Construction

Oops just saw the WST ref in your post... Embarassed

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habu2 wrote:

LinkF-16SimDude, can't miss that callsign - UTDs or WSTs? Bing or Tejas? Wink

Yes, yes, yes......and yes. Eleven years with the various incarnations of Link on WSTs ( Very Happy

) and 1 year on the UTD ( Evil or Very Mad

). 3XBingo, Twenthe, Volkel, Kingsley (during it's Viper period), Diyarbakir (YUCK!!!), Arlington, 2XTucson.

You are right,Habu2. I'm a hardcore Falcon4 flight simmer.
Sorry boys if I misspell sometime,but the English not my first language,
because I'm Hungarian.

Shadow

Quote:

You are right,Habu2. I'm a hardcore Falcon4 flight simmer.

Hehe, I can spot you guys a mile away..... (takes one to know one!) Wink

It does stand for Secondary Engine Control. It was on the P&W 100 engines on the old blocks of the F-16. Upon launch, the pilot would do a SEC check to ensure it was functioning. As the aircraft is places into the SEC mode, the FTIT rises and engine nozzles go to their full closed position. The pilot then runs the aircraft up to 80 or 85%. SEC is to get the aircraft home or to the nearest divert base.

Ciao,
Lee

ViperEnforcer wrote:

Not that I've seen it here yet, but I have seen sensitive info posting to other sites! There are some specifics that are still classified or sensitive that gets danced around from time to time. Just heads up for guys, that's all.

Thanks for the heads up.

If any of you pilots, mechanics, crew chiefs, others, spot any information which might be sensitive, just contact us via a PM or the <a href="index.php?module=feedback&func=view">contact form</a> and we'll take care of it.

Quote:

The pilot then runs the aircraft up to 80 or 85%.

I remember my first flight in the GE motor after flying PW. The TO says to snap the throttle to mil for the SEC check and then snap to idle as the RPM hits 85. I never like going MIL in the chocks or especially indoors, and it scared the crap out of me the first time I did it as the nose strut compressed with the fuel weight as I did it. Thought for sure I'd jumped chocks.

STBYGAIN wrote:

Quote:

The pilot then runs the aircraft up to 80 or 85%.

I remember my first flight in the GE motor after flying PW. The TO says to snap the throttle to mil for the SEC check and then snap to idle as the RPM hits 85. I never like going MIL in the chocks or especially indoors, and it scared the crap out of me the first time I did it as the nose strut compressed with the fuel weight as I did it. Thought for sure I'd jumped chocks.

Back when I was a certifier for all five motors, I found it ironic that we could run in chocks to 85% for GE's, but only 80 for Pratts. I can remember running at 85% with FULL toe pressure on them brakes Mad

Watched one go to full Ab after the motor cranked, SCARRY.

Mike V

STBYGAIN wrote:

Quote:

The pilot then runs the aircraft up to 80 or 85%.

I remember my first flight in the GE motor after flying PW. The TO says to snap the throttle to mil for the SEC check and then snap to idle as the RPM hits 85. I never like going MIL in the chocks or especially indoors, and it scared the crap out of me the first time I did it as the nose strut compressed with the fuel weight as I did it. Thought for sure I'd jumped chocks.

Back when I was a certifier for all five motors, I found it ironic that we could run in chocks to 85% for GE's, but only 80 for Pratts. I can remember running at 85% with FULL toe pressure on them brakes Mad

Watched one go to full Ab after the motor cranked, SCARRY.

Mike V

LeeRichardson wrote:

It does stand for Secondary Engine Control. It was on the P&W 100 engines on the old blocks of the F-16. Upon launch, the pilot would do a SEC check to ensure it was functioning. As the aircraft is places into the SEC mode, the FTIT rises and engine nozzles go to their full closed position. The pilot then runs the aircraft up to 80 or 85%. SEC is to get the aircraft home or to the nearest divert base.

Ciao,
Lee

Yeah, the F-16A/B's and early C models had the Pratt-200's. It was called BUC (Back up control) instead of SEC from what I remember. You had to thottle up to 70+, hit BUC, till the detent pin dropped, or something like that. Never Liked 200's, the worste of the Pratt line in F-16's.

Mike V

Sec mode is only good for about 80% of max thrust. (enough to get the pilot home)

Don't forget that when putting the gear down, the nozzle will remain closed, unlike in PRI where it will open.

This will result in a higher thrust when coming in for landing.

US Vipers have a TV code that fixes that. I've only flown one or two PW jets without the TV code.

Ah, that's nice. The Belgian F-16s are not equiped with the TV code so we have to handle that problem in emergencies

Forum: F-16 Design & Construction

Engine Control Switch