Tag Archives: Grumman F-14 Tomcat

Maverick and Goose would not have had to bail out from their jet if they had flown a F110-powered F-14 Tomcat

Almost every aviation geek has seen the famous film Top Gun. But few of them know that if Maverick and Goose flew an F-14B they would not have had to eject during the flat spin they experienced in the movie.

Developed in the late 1960s as a multi-mission fighter, the F-14’s missions were to protect U.S. Navy Carrier Battle Groups (CBG – now CSG where “S” stands for Strike) from potential raids conducted by the Soviet bombers armed with long-range cruise missiles and to provide fighter cover for Navy attack aircraft.

The Tomcat was fitted with the potent AWG-9 radar which, supporting six AIM-54 missiles, gave the F-14 unprecedented and unparalleled mission capabilities.

Still, even though it was one of the most capable fighters in the aviation history, one problem that plagued the F-14A was the reliability of its TF30 engine. In fact, the fan blades of the Pratt & Whitney engine could break free, causing aircraft stalls and spins as a result of airflow induced engine stalls.

These problems were solved when the F-14B (former F-14A Plus), powered by a new engine, the General Electric F110-GE-400, began to enter in service in 1987.

As explained by Grumman’s Chief Test Pilot Kurt Schroeder to aviation artist and author Lou Drendel, in an interview released towards the end of the 1980s for his Squadron Signal Publications book Modern Military Aircraft: Tomcat:

“The TF30 engine’s highest stall margin, which means the difference between its operating line and where the engine will stall, occurs when it is stabilized at military power. If you would like to go to idle power when you are maneuvering, you stand a very good chance of stalling the engine. The F110 has tremendous stall margin everywhere and, at idle power, it’s higher than anywhere else. When you are maneuvering with the F110 engines, you can do whatever you want to do, whenever you want to do it.”

Moreover, with the new engine, the afterburner thrust went from 20,000 pounds per side up to 28,000 pounds per side, while dry power increased from 11,000 pounds per side to 16,000 pounds per side.

Thanks to the improved performances, Schroeder told Drendel that Maverick and Goose would not have had to bail out from their jet if they had flown a F110-powered Tomcat.

Indeed, Grumman’s Chief Test Pilot explained that the flat spin shown in the movie was “a very concern early in the F-14 program. When the aircraft is in a fully-developed flat spin, it’s going at a very high yaw rate and it is spinning down in a very small radius. In the ejection sequence, the canopy leaves first, then the back seat, then the front seat. […] The concern in a spin is that the canopy will be ejected straight up, followed shortly by the seats and the possibility exists for a collision. We have had several ejections in spins and I believe there was one case where the RIO brushed the canopy. So the scene (of the movie) was entirely possible.”

Some concern existed about the possibility of generating a stall or a spin even with the 110 engine in case its greatly increased thrust was applied asymmetrically, but Schroeder affirmed that “We deal with that easily in 110 powered aircraft. If the aircraft departs for any reason, we just pull the throttles back to idle, which just takes all the thrust effects out of the equation and you recover the aircraft. Since the 110 loves to run at idle, there is no problem. Unfortunately the TF30 does not love to run at idle and you can’t apply this solution.”

According to Schroeder the enhanced maneuverability of the 110 powered Tomcat was able to make the F-14B and F-14D superior to its adversaries in the Air Combat Maneuvering (ACM) arena.

Then, as the experienced F-14 driver said to Drendel, alongside with the new engine, the digital flight control system improved the handling qualities of the aircraft making of the Tomcat airframe the perfect platform for air to ground missions:

“The F-14 was designed to carry bombs. The Navy, however, chose not to develop that capability. There is now more and more emphasis on carrier deck loading and development of multi-mission aircraft, with the F/A-18 as the primary example of that. The F-14 is very capable of performing the air-to-ground mission, mainly because of our range and the fact that we carry the weapons conformally on the fuselage between the engine nacelles, which results in much less of a drag penalty than carrying bombs on the wings. The technology to enhance the radar for this mission has already been developed in the form of the F-15E.”

The F-14 was retired on Sep. 22, 2006, but the last years spent as U.S. Navy’s premiere fighter bomber confirmed Schroeder claims and were a proof of the reliability reached by the Tomcat thanks to the improvements it had received, the most important of which was the F110 engine.

 

 

The story of a legendary F-14 pilot and the gun kill on an F-15 that could sell Tomcats to Japan

Known and unknown stories of a legendary F-8 Crusader and F-14 Tomcat pilot

If you Google “F-14 gun kill” or “F-14 Hoser”, you can find a 8” x 10” frame of a 16 mm gun film shot which shows an  F-15 Eagle locked through an  F-14 Tomcat Head Up Display, at 250 feet, with piper on the Eagle’s pilot, gun selected, master arm on.

Even if the photo itself is already very interesting, the story behind it, is by far more fascinating. In fact, the naval aviator at the controls of the Tomcat can be considered a sort-of legend.

As explained by Alvin Townley in his book Fly Navy, most probably other pilots have scored more kills, held higher ranks or more prestigious commands, but few living aviators embody the untamed nature of aviation like the one-of-a-kind legend known to decades of F-8 Crusader and F-14 Tomcat pilots: Joe “Hoser” Satrapa.

A skilled rifleman, Joe joined the Navy with the aim to fly a jet fighter.  His passion for guns guided him after the flight school graduation, in 1966, when he was called to opt for the F-4 Phantom or the F-8 Crusader. The Phantom had no guns and Satrapa thought: “No guns? What kind of aircraft is this with no guns?” and he immediately chose the “Last Of The Gunfighters” as the Crusader was dubbed by aircrews.

But the “Satrapa legend” began the day he was given the callsign “Hoser” (even if he is also known as “Da-Hose” or “D-hose”), during a mission at the gunnery range in which he was flying the tail position in a flight of four Crusaders. He cut off the preceding aircraft as they approached the target and started shooting from two thousand feet up, one and a half miles out, hosing off all his bullets in one pass.

His flight leader J.P. O’ Neill told him to return to the airfield at El Centro and the same night O’ Neill had the final say on the incident when he nailed Satrapa: “Lieutenant junior grade Satrapa, for hosing off all his bullets in one pass, will hence forth be known as Hoser. That’ ll be five bucks.”

Hoser was also widely known during the Vietnam War as a fearless F-8 pilot who regularly carried a good forty pounds of lethal ordnance, in case he was suddenly forced to eject from his aircraft and face an entire platoon of North Vietnamese Army regulars.

As explained by George Hall in his book Top Gun – The Navy’ s Fighter Weapons School, Hoser’s interest for guns continued when he transitioned to the F-14 Tomcat.

During the AIMVAL/ACEVAL (the Air Combat Evaluation/Air Intercept Missile Evaluation) fighter trials that put the F-14s and the F-15s against the F-5Es to test new weapons and tactics which took place from 1974 to 1978 at Nellis Air Force Base, Hoser (assigned to the VX-4 evaluators) was put in a 1 vs 1 against an F-5.

As the two combatants sat side-by-side on the Nellis runway, awaiting tower clearance for takeoff, Hoser looked over at his opponent, reached his hand up over the control panel, and mimicked the cocking of machine guns in a World War I Spad. A thumbs up came from the other cockpit, meaning that guns it would be, the proverbial knife fight in a phone booth, forget the missiles.

Both jets took off.

As soon as they reached the assigned area, the fighters set up twenty miles apart for a head-on intercept under ground control. Seven miles from the merge, with closure well over 1,000 knots, Hoser called “Fox One”, a Sparrow missile away, scoring a direct hit.

As they flashed past each other, the furious F-5 driver radioed, “What the hell was that all about?” “Sorry.” said Hoser, “lost my head. Let’s set up again. Guns only, I promise.”

Again the two fighters streaked towards the pass, again at seven miles Hoser called “Fox One.” The F-5 driver was apoplectic.

Hoser was first back to the club bar, nursing an end of the day cold one as the flushed Aggressor stomped in. “Hoser, what the hell happened to credibility?” the F-5 pilot asked. Hoser replied “Credibility is DOWN, kill ratio is UP!”

This story became very popular around Topgun, alongside the lesson learned: from 1 vs 1 to forty-plane furball, expect anything. But never expect your enemy to be a sweet guy.

Still, Hoser’s best experience during the AIMVAL/ACEVAL most probably came after the end of the trials. Even if Tomcat and Eagle drivers could not engage each other, Hoser and his RIO Bill “Hill Billy” Hill with  Dan “Turk” Pentecost and Frank “Fearless” Schumacher onboard the second F-14, went 2 vs 2 against a couple of F-15 instructors from 415th Training Squadron (415th Flight Test Flight).

Both Eagles were gunned down and a gun camera film which showed the F-15 locked in the F-14 HUD almost caused Japan to revert its decision to buy the Eagle.

F-14 VX4

Image credit: U.S. Navy

Two unknown F-14 Tomcat wing sweep stories to celebrate Top Gun Day

May 13 is Top Gun Day. Let’s celebrate it with two unknown Tomcat stories told by the former F-14 Tomcat RIO Dave “Bio” Baranek.

Developed in the late 1960s as a multi-mission fighter, the F-14 Tomcat’s mission was to protect U.S. Navy Carrier Battle Groups (CVBG) from raids conducted by the Soviet bombers armed with long-range cruise missiles.

On a typical sortie, the aircraft would keep a combat air patrol station located several hundred miles from the carrier. The loiter and radius advantage of the Tomcat were achieved thanks to its swept wings, which have been the greatest engineering challenge in F-14’s development, as explained to The Aviationist by a very special reader.

“One of the most distinctive and memorable features of the F-14 Tomcat was its variable geometry wings” says Dave “Bio” Baranek, author of the book Topgun Days: Dogfighting, Cheating Death and Hollywood Glory as One of America’s Best Fighter Jocks and a twenty-year experienced Tomcat Radar Intercept Officer (RIO).

Bio explains that the F-14’s wings were controlled by “a microprocessor known as the Central Air Data Computer (CADC) — world’s first microprocessor (designed and developed by Steve Gaeller and Ray Holt from 1968-1970 for the F-14A Tomcat).

As Baranek explains, the variable geometry wings brought several advantages to the Tomcat: At their forward sweep position of 20 degrees (the angle of the wing leading edge), they allowed the F-14 to have a relatively low landing speed, an important consideration for safe operations from an aircraft carrier. As speed increased, they would automatically sweep back based on indicated Mach number (IMN) to a fully-swept position of 68 degrees, reducing drag for high speed flight” (and also to reduce wingspan for aircraft movement and storage – Bio told us that on the flattop’s deck the wings could be swept back to 75 degrees in a position called “oversweep”).

The F-14’s wings could also be manually swept, even if, according to Baranek, the Tomcat’s driver had to consider several factors since The pilot could manually sweep the wings aft of the position determined by the CADC, but not forward of that position, as that could cause structural damage due to the tremendous lift it would generate. Manually sweeping the wings back could confuse an adversary by giving a false indicator of F-14 airspeed. But it also provided much less lift and less maneuverability, so it was a “tactic” or trick that would be used very carefully.”

This last statement is confirmed by Bio himself who recalled exclusively for The Aviationist, the tale of a Tomcat’s driver who forgot the wing swept aft in the middle of a furball in the F-14 simulator.

One time in the F-14 simulator (the name of which was 2F112), we completed our planned work and still had time, so we were messing around. A very good pilot was flying, I don’t remember the RIO, and I was out at the control console. The pilot wanted to try to get out of flat spins by manually sweeping the wings aft. I don’t remember if it helped, but after he did it a few times we still had some time left, so he said, “Let me fight a MiG-21.”

The operator set up the simulator and they started a dogfight. After about two minutes, the pilot said, “Wow, this is the best MiG-21 I’ve ever seen, I should have killed him by now!”

Then I looked at a display that showed an external view of the F-14 and told the others at the control console: “Look, he still has the wings swept aft!” They couldn’t contain their laughter and told him, “Check your wingsweep!”  The pilot put the wings in Auto and the engagement ended soon after that with a kill by the Tomcat.”

Besides being a Naval Flight Officer, Baranek completed an assignment as Top Gun instructor at the Navy’s elite Fighter Weapons School (based at the then Miramar Naval Air Station), hence his chance to see how the F-14‘s swept wings could be used as an advantage during a real dogfight, also against more maneuverable aircraft.

In particular Bio recalls an episode involving a Naval Aviator flying his 1 vs 1 Graduation hop against a Top Gun instructor flying a very particular adversary aircraft.

Before telling the story, Baranek explains how a typical 1 vs 1 Graduation flight took place: “For the “Graduation 1 vs 1″ flight in the Top Gun class, instructors arranged for students to fight an aircraft whose identity would be unknown until merge plot.

Everyone briefed against everyone, so it was legal. This was in the 1980s, and students didn’t know if they were going against an A-4, F-5, or something else. The set up was a 30-mile intercept, so you discovered the identity of your opponent when you could visually ID him, maybe 4-5 miles before the merge.

To keep things interesting they sometimes arranged for an outside aircraft, such as a QF-86 from the Pacific Missile Test Center that would be flown by a live pilot for the event.”

In the second half of the 1980s the Hornet drivers alongside with their then new F/A-18s, began to join Topgun classes and some of them believed they had a huge advantage over the bigger Tomcat during a real air-to-air engagement.

Around 1987, an F/A-18 pilot went through the Topgun class, and he kept trash-talking F-14s. He called them “interceptors” and bad-mouthed them at every opportunity,”  says Bio.

“Most instructors at this time had been F-14 pilots and RIOs, and they decided to teach him a lesson. So they had a former instructor participate in the Graduation 1 vs 1 secretly, and he was flying an F-14A.  This Hornet pilot went out for his 1v1 flight, ran the intercept, and as he approached the merge saw an F-14 with wings fully swept.

The Hornet pilot thought, “The F-14 is going 450 knots or more, I’m going to win.” So at the merge he pulled hard into the vertical. What he did not know: the F-14 had burned much of its fuel, so it was light. Plus, it was only doing 300 knots. At the merge, when the Hornet pulled into the vertical, the Tomcat selected wings to Auto, lit afterburner, and did a max performance turn into the vertical. Since the Hornet was much faster, the Tomcat ended up dead six on the Hornet at one mile and called “Fox 2, kill.”

Following this first engagement To get max training benefit from the opportunity they followed up with a regular one” but as Baranek recalls “the story was a big hit around Miramar, which of course was home to West Coast F-14s. It also reiterated one of Topgun’s main teaching points, which is credited to the Red Baron himself: “It’s not the crate, but the man sitting in it.

TA-4F_F-14A_merge

Image credit: U.S. Navy

 

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Iran stages “massive” aerial parade with F-14, F-4, Mig-29 and several other warplanes

The traditional military parades at mausoleum of the Late Founder of Islamic Republic, Imam Khomeini, south of capital Tehran saw the flyover of several warplanes, including the legendary F-14 Tomcat.

On Apr. 18 Iran celebrated the National Army Day with a traditional and interesting flypast of most of its active warplanes. Eight formations for an overall 27 aircraft took part in the aerial parade: not really “massive” as some Iranian media wrote, still an interesting opportunity to see the majority of the IRIAF (Islamic Republic of Iran Air Force) fighters and bombers in the air.

Mig-29

The flypast featured F-5F Tiger, F-5E Saeqeh, FT-7N, Mirage F.1EQs, F-14A Tomcat, F-4E Phantom, Mig-29UB Fulcrum and Su-24Mk Fencer divided in 8 formations.

F-14 takeoff

One of the formation was a mixed flight made of a Mig-29UB, an F-4E, an F-14A, a Mirage F.1BQ-3 and a Su-24Mk.

Su-24

As highlighted by a member of the ACIG.org forum, both Mirage F.1BQ-3s were carrying F-5E/F external fuel tanks thanks to domestically designed and manufactured underwing pylons.

Mirage F1

Obviously, no sign of the famous F-313 Qaher stealth jet.

Saeqeh

Along with the fixed wing aircraft, 26 helicopters of their Iranian Army Aviation performed their flypast which included AB-206Bs, AH-1Js, Bell 214As and CH-47Cs.

F7

Image credit: IRNA News Agency

 

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The most interesting Warplanes of the Iranian Air Force Open Day

Every year from Mar. 21 to Mar. 31 the regular Iranian Air Force holds an open house and exhibition similar to those one might see in North America or European nations.

The Open Day of the Islamic Republic of Iran Air Force is a legacy left from the former Imperial Iranian Air Force where military installations were opened to public more often than not.

Actually, the recent air show at Dezful 4th air base also coincides with the Persian Norooz and the annual trips to former Iran-Iraq war fronts/trenches taken by the enthusiastic Iranian public.

IRIAF 2

Among the aircraft on display, obviously, several U.S. types locally modified, including the legendary IRIAF F-14 Tomcat, the F-4E Phantom (like the two involved in a close encounter with an American F-22 over the Persian Gulf last year) and the F-5 Tiger.

IRIAF 4

The IRIAF still operates some Mig-29 Fulcrums as the one depicted in the image below.

IRIAF 5

Su-24 Fencer:

IRIAF 6

Image credit: Danial Behmanesh/nahaja.aja.ir

 

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