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Grumman F9F-7 (F-9H) 'Cougar'

Description
  Manufacturer:Grumman


  Base model:F9F
  Designation:F9F
  Version:-7
  Nickname:Cougar
  Designation System:U.S. Navy / Marines
  Designation Period:1922-1962
  Basic role:Fighter
  See Also:

Specifications
Not Yet Available


 

Recent comments by our visitors
 Duke Rohe
 Houston, TX
My dad was pilot #4 (Gordon S. Rohe) in the \'And then there were none...\'piece. Thanks for posting it. I have a Dallas Morning News article on it I have in pdf form. I had seen your article in a Navy periodical in our attic back in 1962.
07/02/2012 @ 19:17 [ref: 63029]
 Charles Schwab
 Lovettsville, VA
Gentlemen,

Again, the Naval Aviation Safety Center has obtained a factual
account of a flight situation of such impact as to warrant special
treatment. And again, as in the presentation of the "Man With the Banjo"
(Aviation Safety Bulletin No. 20-54) the report is offered without
editorial comment and with only a brief introduction.

--and then there were none--

It was a "routine" flight by members of a reserve squadron - eight
pilots were scheduled; seven got airborne; five continued the flight to
its unscheduled conclusion; one pilot died.

Concerning the five pilots, it is believed that their individual
experience and backgrounds provide a fairly typical cross-section of
reserve aviation. The list, which might well be repeated in any of a
hundred similar activities, includes a manager of an electrical supply
firm, the director of industrial relations for an oil refinery, a member
of a construction company, an associat e of a farmers' cooperative
supply organization, and the director of a local chamber of commerce.

Married, family men almost without exception, these pilots drive or are
flown to their base once each month to engage in three or four flights
and to log an average of about 10 flight hours per month.

This is their story.

EIGHT reserve pilots were scheduled for a VFR cross-country
navigation flight to provide cruise control training in F9F-7s prior to
engaging in forthcoming maneuvers. Originally projected several months
before, the flight received final approval and pilots were designated
about 1030 one Saturday morning.

Because of the relatively short notice on which the flight was
finally undertaken, the squadron found it necessary to obtain two
replacement pilots from a local companion squadron. One of the
replacements was designated flight leader because he had the
necessary instrument qualification requ ired for such flights.

Of the eight pilots scheduled, three had flown a hop the previously
during the day; only four had made cross-country flights in the F9F- 7.
As finally organized, the flight appeared something like this: Number 1:
(flight leader) received checkout in F9F-7 two months before and had
logged 10.7 hours in model. Number 2: Checked out in model a year
previously and had about 60 hours in model. Number 3: Checked out in
model previous year and had about 30 hours in model. Number 4: Checked
out in model a year before; had about 29 hours in model. Number 5:
Checked out about two months before and had approximately 20 hours in
model. Number 6: Checked out a year before; had 20 hours in model.
Number 7: Checked out about three months before; had about five hours in
model. Number 8: Checked out a year before; had some 40 hours in model.

Distance of the flight was 555 miles over a route whic h approached
mountainous terrain near the destination. Weather briefing noted a
tornado well to the southwest of the route and scattered thunderstorms
predicted en route. Time en route was one hour 30 minutes, with the
flight to arrive over destination with an estimated 1840 pounds of fuel
remaining.

Preflight planning was accomplished with most of the pilots working out
their own flight plans, and with the flight leader completing a briefing
"as thorough as any flight I ever briefed."

Starting, departure from the line and preliminary radio check was
according to normal procedure. One aircraft was delayed on starting and
was left at the line. Radio communications check proved ifficult, with
considerable shifting of frequency required to establish a common
tactical channel.

On reaching the head of the runway there was an initial delay of
several minutes while a number of aircraft landed. Takeoff was at
1705. Joinup after takeoff was quickly accomplished and the leader then
circled the field at a low altitude to check the status of the delayed
aircraft, which failed to leave the line. Flight members figured that
some 800 pounds of fuel had been expended during delays.

Then There Were Seven
Departure and climb to 36,000 feet on a northwest course was
uneventful, but approximately 110 miles out on course the No.5 and No.6
men returned to base after reporting excessive fuel onsumption. No.7
then moved up into the No.5 position astern.

Then There Were Five

About 200 miles on course the flight encountered the first
thunderstorm, an anvil head at about 32,000-34,000 feet, which they were
able to drop under without difficulty. Thereafter several small
thunderheads were flown over. Weather to the north and east of course
appeared relatively clear.

About 250 miles out the canopy of No.5, formerly No.7 began icing
over despite constant use of manual control, and in a short time he was
looking out "through a dollar-sized hole." In a few minutes, however,
the icing abruptly disappeared.

A radio check netted the report that destination weather was a
comfortable 15,000 feet, scattered, with thunderstorms to the
southeast.

Noting what appeared to be a sizable thunderstorm ahead, the flight
began climbing to top it. At this time No.5 began to lag behind. When
the flight had attained 38,000-40,000 feet, and was nearing the
thunderstorm, the flight leader advised he was reducing power to 87
percent to allow No.5 to catch up. No.5 gave a count for a DF steer from
the planes ahead, which he could no longer see. On reduction of power by
the leader, Nos. 3 and 4 overran and used their excess speed to pull up
slightly higher than the rest the flight.

Now No.3 called in that he as encountering stall in his airplane and
No.5 noted the same c ondition. At this time pilot, possibly No.3,
suggested reversal of course, but No.4, higher than the others, reported
he could see over the top of the thunderstorm.

Just short of the thunderstorm the leader began a left turn which
immediately aggravated the stall of the aircraft. Mushing
considerably, the flight entered the cloud, No.2 entering first,
followed No.1, No.4 held course and altitude. No. 3's actions from this
point are not known, but possibly he elected to go down through the
clouds. No.5 attempted a 180 but stalled through the tops of the
thunderstorms at about 39,000 feet.

>From this point the integrity of the flight disappeared as each of the
remaining pilots found himself in a situation requiring a separate
solution. The account of how each pilot attempted to solve his
individual problem follows.

Lose Leader

Completing his turn away from the cloud and circling in the clear at
about 34,00 0-36,000, No.1 began calling the flight, but was unable to
establish satisfactory communications. He then began a decent in the
trough paralleling the near side of the cloud, throttle at idle, and
leveled at 17,000 feet to go around the edge of the thunderhead and to
resume base course.

It was then apparent that le 1500 pounds of fuel remaining would be
insufficient to make destination, and No.1 began looking for a place to
land. Following a highway he descended to 5000 feet to select a stretch
on which to set down. After dragging the road for obstructions he made
an approach over a pickup truck and touched down, blowing a tire as
brakes were applied. On landing runout he noted a slight hill over which
he might expect to see a car come at any time, so he turned off the
highway at a side road intersection to clear. A car immediately came
over the hill to investigate the low flying airplane.

Driven into a nearby town the pilot obtained the services of a
tractor and a hired hand to tow the plane into town. This was
accomplished after a few mishaps involved in being towed off the
pavement onto the soft shoulder.

Thereafter No.1 was advised of the crash of another aircraft some 40
miles away and was driven to the scene to assist in its identification.

Then There Were Four

On entering the cloud, No.2 elected to descend through what he
assumed to be only a layer, to bust out under, and remain contact to go
on to destination. He extended speed brakes, reduced throttle and began
a 5000-6000 fpm rate of descent, holding base course. The descent was
considerably prolonged. He first encountered lightning and then severe
turbulence, and meanwhile he attempted to hold a nose-down attitude to
prevent stalling.

After the first period of turbulence No.2 became concerned about his
altitude with reference to surrounding terrain, b elieving that below
15,000 feet he would be dangerously near to the mountains ahead. He
turned north, and got into more violent turbulence, lost control of the
airplane a couple of times and at 15,000 feet decided to eject. Still in
turbulence, still in a dive, he jettisoned his canopy (he lost his
helmet but does not recall when this occurred), and releasing the
controls, pulled the curtain. Nothing happened, but he had been told
that he might reasonably expect a two or three-second delay in the
firing of the seat, so he was not particularly upset over the delay.

Curtain over his chin, he waited-then decided to peek around the
curtain to see if he were still in the airplane. He was. He released the
curtain, waited, still diving, considered re-safetying the curtain,
discarded the idea and went back to driving the airplane

While considering his next move he saw the ground materializing below to
show that he still had a safe altitude. Breaking out beneath the clouds
at about 5500 feet he retracted speed brakes and took up an easterly
heading, unable to get much speed because of the absence of the canopy.
After searching for a time for a place to land, he selected a stretch of
highway, near a town. He was down to 500 pounds of fuel now. Checking
the wind from the local trash dump he made an approach over an
automobile at about 150 feet, leveled at 10 feet, cut the throttle and
landed. Slowing to taxi, he folded the wings to cross a bridge and
continued into town where he turned off to park on a side street.

After his report was made, arrangements were made for a nearby air
station to send a crew with another canopy, fuel, a starter unit, and to
disarm the hot seat. Faced with the problem of what to do with o the
seat cartridge, the pilot considered throwing it into a lake, burying
it, and then obtained a shotgun from a patrolman and shot the side of
the shell open, rupturing it so the powder could be removed. The shell
case was turned over to investigating personnel for further check

When the airplane was ready for flight, it was pushed by local
citizens back to the highway, which was blocked off. A clear stretch of
road about a mile in length was then available before the highway
crossed a low bridge. Thereafter, another mile of open highway was
usable. There was no fuel in the wing tanks; elevation of the "field" -
was 2200feet.

The airplane was almost airborne at the first bridge, and in
accordance with his pre-planning, the pilot was able to lift the
plane up on the oleos to clear the bridge safely. Thereafter he was
airborne on the second stretch of runway.

After I got off," said the pilot, "I came back and made a pass by the
town to do a roll of appreciation for their help.

Then There Were Three

Because No.3 was not observe d from the time the flight entered the top
of the cloud, nor were any radio transmissions heard, his actions may
only be guessed. The airplane crashed some 40 miles away from the point
at which No.1 landed. The plane hit in a near-vertical angle on the
corner of a cement foundation of a farm structure, digging a large hole
and being demolished by the impact.

After the initial inspection the investigating party concluded that the
ejection seat was not in the wreckage. Shortly thereafter, because of
the inconvenience caused the property owner by the crowds of spectators
and souvenir hunters attracted to the scene, it was decided to bulldoze
the wreckage into the hole and to cover it up. The pilot was later
found, dead of injuries which' possibly resulted from hitting some part
of the plane on bailout. Questions then raised concerning the absence of
the ejection seat prompted the re-opening of the crash hole to
re-examine the wreckage. Parts of the ejection seat were then found in
the wreckage.

Then There Were Two

The No.4 man stated that from his position 1000-2000 feet above the rest
of the flight, he could see over the top of the cloud, and recommended
going over.

However, when the leader reduced power to allow No.5 to catch up,
No.4 encountered, stall and began to lose altitude. He increased
power to 100 percent but still lost some 1000 feet more. A tentative
turn with the rest of the flight increased the stall and he returned to
base course and was in the cloud. He too, thought he would be able to
penetrate quickly.

Within the cloud, he reports that his fuel consumption appeared to have
increased, and he decided to get down in order to have some fuel
remaining for landing. At this time he had about 1500 pounds. Knowing
that a range of mountains was directly ahead on course he turned to
parallel the mountains and continue d his descent at about 4000 fpm. He
too encountered violent turbulence but the airplane handled very well
and he ever lost control. He attempted to raise CAA and Navy towers
without success and then called "Mayday." His only answer was from an
Air Force B-25 which gave him some idea of weather conditions beyond the
storm area.

At 15,000 feet he heard No. 2 call he was in the clear. At 12,000
feet the fuel warning light came on (he had not retarded throttle
during his descent). At 11,000 feet he broke out beneath the
thunderstorm and turned to intercept base course. After attempting to
locate himself by landmarks and down to 700 pounds of fuel remaining he
circled a reservoir with the intention of a water ditching.

Noting the length of the reservoir dam, about 9300 feet, and its
width, some 25 feet, he elected to try and land on the dam itself. To
one side, the water level was about 15 feet below the top of the dam. On
the other side was a drop of about 250 feet. A guard rail, about three
feet high ran along either edge of the dam.

On touchdown, he avoided use of brakes and, flaps clattering on the tops
of the guardrail pipes, completed the rollout and added power to taxi
off the far end of the dam. Taxing down to some buildings he was met by
an irate reclamation official who advised him that "Son, you're in
trouble! You can't go landing on government property like this!"

Shortly thereafter, arrangements were made to report the landing and for
the removal of the airplane.

Then There WAS One

At the time the formation approached the cloud, No., 5 was at about
39,000 feet at about, 170 knots, stalling through the tops of the
clouds. On trying to make a 180, he stalled and mushed into the clouds.
Attempting to fly out of the clouds on instruments, he also hit violent
turbulence, being flipped on his back and getting into other unusual attitudes.

At times he was gaining 6000 fpm and at other times he was descending
4000 fpm. He came out below the clouds at 17,000 feet in a slight
nosedown turn, but a low airspeed brought on a stall. He nosed over to
pick up speed and lost altitude down to 6000 feet. He then climbed back
to 15,000, having about 1900 pounds of fuel left.

Taking up an easterly course away from the storm area he was unable to
establish his position, and spotting an abandoned airstrip, with only
700 pounds of fuel indicated, he elected to land. The strip was about
5800 feet long, and landing was without incident. No.5 then "took a
chance and started walking." He was later informed that he was quite
fortunate in his choice of direction, for had he taken the opposite
direction he would have found no houses, just a long stretch of open
country.

He found a house and was able to report his landing and arrange for fuel
to be brought to the airstrip. Then, he reports, "I got my biggest shock
when I saw a spectator smoking near the airplane as it was being
fueled!" The plane was returned to base.

- And Then There Were None.

The Aviation Safety Center is indebted to the pilots who voluntarily
provided this candid account for the benefit of other pilots.

06/30/2007 @ 15:54 [ref: 16994]

 

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