Tomcat question

If the IFR probe won't retract, what's the usual reason, and what other
effects will that failure have on other systems, specifically those
associated with landing. Got asked that on another forum. Relates to a
segment in this video: http://www.big-boys.com/articles/theairforcefun.html

Ignore the fact that the moron poster mistook this for AF stuff.

Dave in San Diego

"Dave in San Diego" wrote in message
. ..
If the IFR probe won't retract, what's the usual reason, and what other
effects will that failure have on other systems, specifically those
associated with landing. Got asked that on another forum. Relates to a
segment in this video:
http://www.big-boys.com/articles/theairforcefun.html

Ignore the fact that the moron poster mistook this for AF stuff.

Dave in San Diego




If the IFR probe won't retract, what's the usual reason,
I'm thinking auxiliary hydraulic or accessory hydraulic failure- I don't
recall which system feeds that IFR retract cylinder.

MikeR

Utility Hydraulic failure most likely. Or it's conceivable the system might
have failed in the electrical actuation of the hydraulics or the probe
actuator failed w/o compromising the util hyd system.

No impact on bringing the aircraft aboard normally. Wouldn't be pretty for
a barricade landing. Of course, there are speed restrictions probe deployed
.... which might seriously compromise continuation of the mission after
tanking.

R / John

"MikeR" wrote in message
...

"Dave in San Diego" wrote in message
. ..
If the IFR probe won't retract, what's the usual reason, and what other
effects will that failure have on other systems, specifically those
associated with landing. Got asked that on another forum. Relates to a
segment in this video:
http://www.big-boys.com/articles/theairforcefun.html

Ignore the fact that the moron poster mistook this for AF stuff.

Dave in San Diego




If the IFR probe won't retract, what's the usual reason,
I'm thinking auxiliary hydraulic or accessory hydraulic failure- I don't
recall which system feeds that IFR retract cylinder.

MikeR

"Dave in San Diego" wrote in message
. ..

If the IFR probe won't retract, what's the usual reason, and what other
effects will that failure have on other systems, specifically those
associated with landing. Got asked that on another forum. Relates to a
segment in this video:
http://www.big-boys.com/articles/theairforcefun.html


I have no experience with the F-14, but I'd wager with the probe extended
any external fuel would not transfer. On similar aircraft fuel is forced
out by engine bleed air, the tanks must obviously be unpressurized during
refueling.



Ignore the fact that the moron poster mistook this for AF stuff.


He identifies it as U. S. Navy.

I have no experience with any military aircraft, but I'd wager that no fuel
would transfer with the probe retracted, either.

I have no experience with the F-14, but I'd wager with the probe extended
any external fuel would not transfer. On similar aircraft fuel is forced
out by engine bleed air, the tanks must obviously be unpressurized during
refueling.

"Mike W." wrote in message
...

I have no experience with any military aircraft, but I'd wager that no
fuel
would transfer with the probe retracted, either.


Why not?

"Mike W." wrote in message
...
I have no experience with any military aircraft, but I'd wager that no
fuel
would transfer with the probe retracted, either.

Fuel transfer is not controlled by the position of the IFR probe- rather
directly controlled in the cockpit by the pilot (electrically controlled,
pneumatically actuated- just like a lot of other aircraft systems).

MikeR

Mike W. wrote:
I have no experience with any military aircraft, but I'd wager that no fuel
would transfer with the probe retracted, either.

Previous poster was talking about transferring fuel out of the
external tanks to the engines... not from the tanker to the tomcat.

Ray

"Steven P. McNicoll" wrote in
.net:


"Dave in San Diego" wrote in message
. ..

If the IFR probe won't retract, what's the usual reason, and what
other effects will that failure have on other systems, specifically
those associated with landing. Got asked that on another forum.
Relates to a segment in this video:
http://www.big-boys.com/articles/theairforcefun.html


I have no experience with the F-14, but I'd wager with the probe
extended any external fuel would not transfer. On similar aircraft
fuel is forced out by engine bleed air, the tanks must obviously be
unpressurized during refueling.



Ignore the fact that the moron poster mistook this for AF stuff.


He identifies it as U. S. Navy.

The info *on* the page was updated, but the link *to* the page still says
theairforcefun.html, as above.

Thanks for all the info guys. Got the question answered.

Dave in San Diego wrote:
If the IFR probe won't retract, what's the usual reason, and what other
effects will that failure have on other systems, specifically those
associated with landing. Got asked that on another forum. Relates to a
segment in this video: http://www.big-boys.com/articles/theairforcefun.html

Ignore the fact that the moron poster mistook this for AF stuff.

Dave in San Diego

Never seen one that didn't but it was hydraulic/electrical. perhaps a
blown cb might cause it to stay out. Airspeed limits(350 kts??), need to
trim left rudder is all.

We had a F-124 come back with a basket stuck on the probe..when called
the ball'basketball', landed, pried it off.

Think the pilot had a new callsign-Zorro'...