Piper Cub Vs F-15

From: "Emilio"
Date: 6/29/2004 12:13 PM Eastern Daylight Time
Message-id:

It is hard to believe that F-15 can fly formation with Piper Cub.

http://www.pipercubforum.com/intercep.htm

Do F-15 fly by wire system prevent the aircraft from stalling at that low
speed? Last time I saw an aircraft with fly by wire system did such a
stunt, Airbus plowed right in to the forest at the end of the forest!

Emilio.

Its actuallly about a C-172 getting intercepted, about a 110 knot airplane.
Still pretty slow though.
Guess we would need one of the eagle drivers to chime in...


Ron
PA-31T Cheyenne II
Maharashtra Weather Modification Program
Pune, India

This led me to go find my F-15A-1, circa 1975. Level flight, 0 bank,
military thrust, gear & flaps down, sea level stall speed (defined as
30 deg AOA) was about 100 KIAS. Final approach speed under those
conditions was 143 KIAS. So, assuming the numbers haven't changed much
for the F-15C/D, staying with a 110-120 KIAS Cessna would be sporty,
but doable.

Jim Thomas


Emilio.

Its actuallly about a C-172 getting intercepted, about a 110 knot airplane.
Still pretty slow though.
Guess we would need one of the eagle drivers to chime in...


Ron
PA-31T Cheyenne II
Maharashtra Weather Modification Program
Pune, India

(Jim Thomas) wrote:

This led me to go find my F-15A-1, circa 1975. Level flight, 0 bank,
military thrust, gear & flaps down, sea level stall speed (defined as
30 deg AOA) was about 100 KIAS. Final approach speed under those
conditions was 143 KIAS. So, assuming the numbers haven't changed much
for the F-15C/D, staying with a 110-120 KIAS Cessna would be sporty,
but doable.

My commercial pilot log shows that in the chaotic days following 9/11
(29 October, 2001) while cruising along in a Cessna 210L at 160 kts.
or so I was intercepted by an F-15 near Miami's Turkey Point nuke
powerplant. However, since I was on an IFR flight plan and talking to
Miami Center, they handed me off to Homestead AFB who gave me
a heads up. "Shark XX" zipped by lickity split about 50-75 yards in
front of me at the same altitude and perpindicular to my flightpath
then disappeared over the Atlantic as quickly as it appeared.

"Mike Marron" wrote in message
...
(Jim Thomas) wrote:

This led me to go find my F-15A-1, circa 1975. Level flight, 0 bank,
military thrust, gear & flaps down, sea level stall speed (defined as
30 deg AOA) was about 100 KIAS. Final approach speed under those
conditions was 143 KIAS. So, assuming the numbers haven't changed much
for the F-15C/D, staying with a 110-120 KIAS Cessna would be sporty,
but doable.

My commercial pilot log shows that in the chaotic days following 9/11
(29 October, 2001) while cruising along in a Cessna 210L at 160 kts.
or so I was intercepted by an F-15 near Miami's Turkey Point nuke
powerplant. However, since I was on an IFR flight plan and talking to
Miami Center, they handed me off to Homestead AFB who gave me
a heads up. "Shark XX" zipped by lickity split about 50-75 yards in
front of me at the same altitude and perpindicular to my flightpath
then disappeared over the Atlantic as quickly as it appeared.

I'll bet that was enough to produce a world class pucker even if you did know
for a second or towo that it was coming!!! (^-^)))

George Z.

"George Z. Bush" wrote:
"Mike Marron" wrote:

My commercial pilot log shows that in the chaotic days following 9/11
(29 October, 2001) while cruising along in a Cessna 210L at 160 kts.
or so I was intercepted by an F-15 near Miami's Turkey Point nuke
powerplant. However, since I was on an IFR flight plan and talking to
Miami Center, they handed me off to Homestead AFB who gave me
a heads up. "Shark XX" zipped by lickity split about 50-75 yards in
front of me at the same altitude and perpindicular to my flightpath
then disappeared over the Atlantic as quickly as it appeared.

I'll bet that was enough to produce a world class pucker even if you did know
for a second or towo that it was coming!!! (^-^)))

Nah. I wasn't wearing my turban that day so I actually thought it was
cool and wished I could trade in my spamcan for an Eagle.

Jim Thomas wrote:

Its actuallly about a C-172 getting intercepted, about a 110 knot airplane.
Still pretty slow though.
Guess we would need one of the eagle drivers to chime in...

This led me to go find my F-15A-1, circa 1975. Level flight, 0 bank,
military thrust, gear & flaps down, sea level stall speed (defined as
30 deg AOA) was about 100 KIAS. Final approach speed under those
conditions was 143 KIAS. So, assuming the numbers haven't changed much
for the F-15C/D, staying with a 110-120 KIAS Cessna would be sporty,
but doable.

With a pair of fighters it would be fairly easy for one to pass the
Cessna at a modest pace while the other does a 360 to take over.
Another option would be to "tack", allowing a noticeably higher
airspeed.

That said, ISTM that the civvy pilot was remarkably clueless:
sufficiently so to lose his ticket, I'd have thought.

Consider this paragraph:

Wirig says the F-15 pilot, with whom he was not in
radio contact, kept lowering his landing gear and
flaps, trying to get the GA pilot to understand. "I
couldn't figure out what he was trying to get me to
do," said the 69-year-old pilot.

The military pilot "kept lowering his landing gear", eh?

I can think of two possible reasons for that: as a signal that the
Cessna's landing gear is in an abnormal state, or as a signal that Wirig
should use his gear for its intended purpose.

I can also think of two reasons to dismiss the former signal a unlikely:
if your typical 172's landing gear is in an abnormal state there is a
fair chance that its pilot will be aware of some bent metal (although
the RG *could* have a gear fault manifest in flight); and the military
pilot "kept lowering his ... flaps", making the signal either "you have
*two* visible faults on your aeroplane" or "land now". I know which *I*
reckon is more likely ...

"Emilio" wrote in message
...
It is hard to believe that F-15 can fly formation with Piper Cub.

http://www.pipercubforum.com/intercep.htm

Do F-15 fly by wire system prevent the aircraft from stalling at that low
speed? Last time I saw an aircraft with fly by wire system did such a
stunt, Airbus plowed right in to the forest at the end of the forest!

That was more to do with the poor planning and complacency of the pilots
than the FBW system.

John

"John Mullen" wrote in message
...
"Emilio" wrote in message
...
It is hard to believe that F-15 can fly formation with Piper Cub.

http://www.pipercubforum.com/intercep.htm

Do F-15 fly by wire system prevent the aircraft from stalling at that
low
speed? Last time I saw an aircraft with fly by wire system did such a
stunt, Airbus plowed right in to the forest at the end of the forest!

That was more to do with the poor planning and complacency of the pilots
than the FBW system.

John



The pilots had a) ignored the 'low altitude' warning, b) thought they were
flying at 100 feet rather than the actual 30, and c) hadn't anticipated or
allowed for the delay in pushing the throttle and the engines actually
responding.

"Mike" wrote in message
...
"John Mullen" wrote in message
...
"Emilio" wrote in message
...
It is hard to believe that F-15 can fly formation with Piper Cub.

http://www.pipercubforum.com/intercep.htm

Do F-15 fly by wire system prevent the aircraft from stalling at that
low
speed? Last time I saw an aircraft with fly by wire system did such a
stunt, Airbus plowed right in to the forest at the end of the forest!

That was more to do with the poor planning and complacency of the pilots
than the FBW system.

John



The pilots had a) ignored the 'low altitude' warning, b) thought they were
flying at 100 feet rather than the actual 30, and c) hadn't anticipated or
allowed for the delay in pushing the throttle and the engines actually
responding.

They had also lined up on the wrong runway for the display they were doing,
and disabled the alpha floor function (?) which normally protects the
plane's speed.

A common theme in a lot of these modern crashes is the immense over reliance
pilots place in the automated systems.

If you point the plane at the ground and turn off the engines, it will still
crash. A sobering thought.

John

"Emilio" wrote in message
...

It is hard to believe that F-15 can fly formation with Piper Cub.

http://www.pipercubforum.com/intercep.htm


Only for the split second it takes for the Eagle to overrun the Pooper. At all
other times, it's either rapidly overtaking or rapidly leaving the Pooper in its
dust. (^-^)))

George Z.