Four SD ANG F-16Cs returning from Poland have arrived in the UK. One of them sports the brand new overall grey color scheme aimed at reducing the aircraft’s RCS (Radar Cross Section).
Four F-16Cs from the South Dakota ANG 175th Fighter Squadron of 114th Fighter Wing have taken part in a deployment to Lask airbase, Poland, where they arrived on Sept. 3.
The purpose of their visit was to participate in the bilateral training exercise “Aviation Detachment 16-4”. They were also accompanied by 100 associated members of unit.
On Sept. 24, the four Vipers arrived at RAF Mildenhall, UK, apparently due to problems with a KC-10 tanker. Interestingly, one of them 88-0428 sported fancy Tail Markings as the Commanders aircraft while another one (88-0422), was painted in a new F-35-like dark grey color scheme (the other two aircraft were 88-0932 and 88-0463.)
Called “Have Glass 5th generation” or “Have Glass V” the paint scheme is the evolution of the standard Have Glass applied to 1,700 “Vipers”: all the F-16s are covered with RAM (Radar Absorbent Material) paint, made of microscopic metal grains that can degrade the radar signature of the aircraft.
During the display at the Zeltweg airshow in Austria, the Belgian Air Force F-16 suffered a compressor stall that caused a loud bang and an impressive backfire.
On Sept. 3, during its display at the AIRPOWER 2016 airshow in Zeltweg, the “Viper” of the Belgian Air Force F-16 Solo Display Team suffered an apparent compressor stall that forced the pilot to perform a precautionary landing.
Take a look at the footage below. If you jump to 03:20 you will see the aircraft’s engine emanating flames (generating a loud bang you can’t hear) in what seems to be the typical behaviour of a compressor stall.
Compressor stalls (sometimes referred to as afterburner stalls in aircraft with reheat) are not too rare among military aircraft. They can be caused by several factors, including birdstrikes, FOD (Foreign Object Damage), ingestion of turbulent or hot airflow into the air intake etc.
A compressor stall is a local disruption of the airflow in the compressor whose severity may vary from a momentary power drop to a complete loss of compression.
A particular kind of compressor stall is the compression surge that occurs when the hot vapour generated by the aircraft carrier’s catapult is ingested by the aircraft air intake thus creating a breakdown in compression resulting in a the compressor’s inability to absorb the momentary disturbance and to continue pushing the air against the already-compressed air behind it. As a consequence, there’s a momentary reversal of air flow and a violent expulsion of previously compressed air out through the engine intake producing some loud bangs from the engine and “back fires”.
As already explained on The Aviationist in the past, in most of the cases even after suffering a “surge” the compressor will usually recover to normal flow once the engine pressure ratio reduces to a level at which the compressor is capable of sustaining stable airflow.
Some engines have automatic recover functions even if pilots experiencing the surge can be compelled to act on the throttle or, in some cases, relight the engine.
When it comes to the photoship used during the shoot which took place over the territory of Poland, the photographers were flying onboard a Polish Air Force Casa C-295M aircraft, using the back ramp of the cargo plane.
Filip was kind enough to share his shots with us, so that we are able to present you the images depicting the founding elements of the Polish fighter force like you’ve never seen them before.
“The paint scheme is a means of representing threats more accurately,” said Capt. Ken Spiro, 64th AGRS chief of intelligence. “There are real world threats that paint their jets in this way so we are changing over to make it more physically like their aircraft. Once a pilot who is training comes within visual range of the new Aggressor, they’ll be seeing a similar situation to what they would see with an actual threat aircraft.”
To represent these threats more accurately, the 64th AGRS looks for any and all ways to try to emulate the threats that are opposing combat air forces.
“The idea started at the 64th AGRS because we’re always looking for different ways to be more threat representative, and make the training more realistic,” said Spiro. “The 64th AGRS gets creative in extra ways, such as paint schemes to accurately and better represent threats. We act like, look like, or anything you can think of we try so we can be true to the threats. We’ve had some jets that are painted like a regular F-16, and then we’ve had some that have more of a tiger stripe pattern. Our F-16’s paint schemes have been similar to threats in the past and this new scheme is more representative of today’s threats.”
Noteworthy, a new F-16 with a new “shark” paint scheme is being prepared at Nellis. Inspired by the T-50?
F-16s, KC-135Rs, A400Ms: known and unknown details about the night of the Turkey military coup.
Here below is the account of what happened on Jul. 15, when a military takeover was attempted in Turkey. It is based on the information gathered by Turkish defense journalist Arda Mevlutoglu, by analysis of the Mode-S logs and reports that have been published by several media outlets in the aftermath of the coup.
Shortly after 22.00 local time on July 15th, air traffic control (ATC) operator in Akinci 4th Main Jet Base (MJB), an airbase located to the northwest of Ankara, contacted his counterpart at Esenboga Airport ATC. Akinci airbase is the homebase of 141, 142 and 143 Filo (Squadrons) of the Turkish Air Force (TuAF) equipped with F-16Cs.
4MJB operator informed that two local-based F-16s were going to take off, fly at 21-22,000 feet and coordination with Esenboga ATC could not be possible.
Shortly after, two F-16s calsign “Aslan 1” (“Lion 1”) and “Aslan 2” (“Lion 2”) from 141 Squadron took off from 4MJB.
After take off, Aslan 1 contacted Esenboga and requested permission to climb to the designated altitude, which was granted. When asked about the intention, the pilot replied “special mission, going to fly over Ankara city.”
Shortly after this communication, telephone calls from the city began reaching Esenboga, telling jets flying at very high-speed at low altitude. The time is around 22.20 – 22.25, as videos of F-16s flying over Ankara at rooftop level were filmed.
Puzzled by the reports, Esenboga ATC called 4MJB ATC for an explanation. The reply was: “They took off with IFF transponders switched off.” 4MJB also informed Esenboga that a new pair of F-16s with callsign “Sahin” (“Hawk”) also took off at very low altitude.
The Sahin pair threatened civilian air traffic, which was diverted through alternative approach routes.
Shortly after that, Esenboga ATC detected a KC-135R callsign “Asena 02” from Incirlik 10th Main Tanker Base (MTB). The presence of this KC-135R, from 101 Filo (whose radio callsign is “Asena”), is confirmed by Mode-S logs collected by a feeder in Ankara.
At this point Esenboga ATC had no contact with the mentioned F-16s and KC-135R. The Turkish Vipers began air-to-air refuelling from “Asena 02” periodically. Noteworthy, as many as 4 KC-135R reportedly flew from Incirlik (Asena 01 to 04 – the first appearing on the Mode-S logs).
It was reported that coup supporting aircraft and helicopters opened fire at:
Police Special Operations Forces headquarters at Golbasi (bombed by F-16. 47 policemen killed)
Police Aviation Division headquarters at Golbasi
Turkish Grand National Assembly building (TBMM)
Turkish Police general headquarters
MIT (national intelligence organization) headquarters at Yenimahalle
TurkSAT (state satellite operator) headquarters at Golbasi
It was reported also that F-16s from both sides entered dogfight over Ankara and Istanbul, however no aircraft has been shot down according to the reports obtained thus far. Interestingly, one of the coup plotters aboard a “rebel” F-16 was the pilot who shot down the Russian Su-24 Fencer that had violated the Turkish airspace back in November 2015.
F-16s from Dalaman, Erzurum and Balikesir took off to intercept coup F-16s that according to the reports were as many as 6.
Merzifon 5MJB, which is one of the closest MJB’s to Ankara was at renovation and closed. All its fighters were temporarily based in Erzurum.
Meanwhile, “Asena 02” left Ankara and climbed to max operational altitude, circling over Kastamonu. Asena 03 took over its role of supporting coup F-16s. A couple of arriving F-16s were directed to Asena 02 to shoot it down, but did not do so probably due to the fact that it was flying over residential areas.
At least one AH-1 Cobra, probably an AH-1W type opened fire with its 20mm gun to protesting crowd and TBMM. This helicopter or another one repotedly opened fire at TurkSAT (State satellite operator) headquarters at Golbasi. This helicopter was reportedly shot down by a loyalist F-16.
A S-70A opened fire at the front gates of MIT campus. Reportedly tried to insert commandos to take over the facility and kidnap Hakan Fidan, head of the service. This helicopter is reportedly shot down (not confirmed).
One or two Air Force AS532 CSAR helicopters raided a wedding ceremony of a high rank general in Istanbul which was attended by many generals. CSAR commandos kidnapped them.
8 cargo aircraft (C-160 and A400M included – one using callsign “Esem 26” was in the air when the takeover unfolded) took off from Kayseri and landed at Malatya 7MJB. They were full of weapons to be used by coup.
Coup F-16s searched for President Recep Tayyip Erdogan’s plane, TC-ATA around Istanbul to shoot it down. According to some media reports rebel TuAF F-16s had the plane in their sights: it’s unclear whether they had a real lock-on, rather that they probably were searching the sky for the Gulfstream IV.
Furthermore, TC-ATA used a callsign THY 8456 to disguise as a Turkish Airlines airplane (Turkish’s callsign is THY) and the risk of shooting down another plane, and losing credibility too, could be a factor affecting the coup’s F-16s to shot down his plane and kill Erdogan.
TC-ATA was flying from Dalaman to Istanbul Ataturk, which was raided by coup supporters. ATC was taken over, all lights off. Shortly before TC-ATA’s landing, it was taken from rebels.
Early morning of 16 July, fighters (probably F-4E 2020) from Eskisehir 2MJB bombed the main runway of 4MJB whilst at least one Turkish Air Force F-16C Block 50 was circling to the west of Ankara most probably in Combat Air Patrol. In the afternoon on the same day an E-7 AEW of 131 Filo and an F-16 of 142 Filo were flying in Ankara area, likely ready to intercept any helicopter or small plane trying to flee towards Greece.
Update: please note that unlike what has been mistakenly reported by some media outlets, no U.S. KC-135 took part in the operation according to the information we have collected. All the tankers whose presence has been confirmed are Turkish Air Force tankers from 101 Filo, as explained in the article.
H/T to Arda Mevlutoglu for widely contributing to this post. Additional info from @CivMilAir and @Avischarf