45 votes
Accepted

What is that device on an Su-27 pilot's helmet?

That is the mounting point for night vision goggles. The following image shows a helmet with NVG mounted. Helmet mounted NVG; image from lemt.by The USAF has helmets with different mounting and some ...
aeroalias's user avatar
  • 100k
37 votes

Why is there a white line on Russian fighter jets' instrument panel?

I believe it is exactly what your instructor has said - it helps when regaining control of the aircraft during a spin. The correct procedure for recovering from such a maneuver is to apply rudder in ...
Cooper's user avatar
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20 votes
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Why is the Su-27 so much larger than the MiG-29?

The Su-27 and Mig-29 were the result of high-low concept subscribed by both the USAF and Soviet Air Force (VVS) in the 1970s. Basically, this involved the development of two different fighters, a high ...
aeroalias's user avatar
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14 votes
Accepted

What is this feature on a Sukhoi Su-27?

It's the sensor of the IRST (InfraRed Search and Track) system. An IRST allow an aircraft to search and track aerial or ground targets using passive infra-red radiation only thus reducing the ...
Marco Sanfilippo's user avatar
13 votes
Accepted

What is this part between the Su-35's jet exhaust nozzles?

The long thing has RWR (Radar warning Reciever) on its sides and has a drogue parachute in the middle. This image shows the rear part open after deployment. Image from airplane-pictures.net ...
aeroalias's user avatar
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9 votes
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What are these protruding elements from SU-27's tail?

I believe that these are static discharge wicks. You can see similarly sized/shaped wicks on a 1/32 scale models of the SU-27, as discussed here, but, more importantly, you can find them labeled with ...
Marius's user avatar
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7 votes

What is this feature on a Sukhoi Su-27?

That is the IRST which can be used for tracking aircraft passively.
chriscowley's user avatar
7 votes

What is this part between the Su-35's jet exhaust nozzles?

If you are speaking of the grey volume, according to this cutaway by Alexey Mikheyev, it contains a Radar Warning Receiver/Electronic Intelligence System. Basically a system designed to detect if an ...
Federico's user avatar
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4 votes

Why doesn't F-15 have a protruded cone at its rear like what the Su-35 has?

As @RalphJ notes, it is not required. It is a design choice based on various considerations. The 'cone' in the Su-35 houses the RWR and the drogue chute. In case of F-15, however, the drogue chute is ...
aeroalias's user avatar
  • 100k
4 votes

What specific features of the Sukhoi 27 make it a rival to the F-15?

Principally the SU-27 with its Phasotron N001 pulse Doppler radar provided the Soviet Air Force with a look-down/shoot-down capability designed as a counter to the American B-1 bomber. But it also ...
Romeo_4808N's user avatar
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3 votes
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Reason for limited engine fuselage on Sukhoi fighter aircraft?

In a fighter you generally want to optimize fuel and ordinance capacity as well as have competitive performance. This use case generally leads to a design that is different than your average transport ...
Dave's user avatar
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3 votes

What is that device on an Su-27 pilot's helmet?

(spetstechnoexport.com) Those are also mounts for Helmet Mounted Sight for the Vympel R-73 missile. Both the MiG-29 and Su-27 were equipped with this missile system. I think F-35 pilots have this ...
Dork face's user avatar
2 votes

Why is the Su-27 so much larger than the MiG-29?

The Su-27 was design to fly escort for long distance bombers, whereas, the Mig-29 was designed for front line action. This distinction in the primary mission of the two aircrafts becomes apparent when ...
Dohn Joe's user avatar
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2 votes
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Why would a country prefer to purchase Su-35 rather than Su-30MK?

There can be many reasons for such a choice. The first is a single seat air-defense fighter, the other is a two-seat multirole air-superiority fighter according to Wikipedia. The cost can be another ...
bjelleklang's user avatar
  • 4,096
2 votes

What improvement was made in Su-35 over Su-30?

The Su-30 is an modifications of the SU-27UB The Su-35 is an Su-27 shaped aircraft with many new parts from the Su-34 (T-10BM) in detail Radar N035 Irbis-E PESA Rear-looking self-defense radar new fly-...
alfetta's user avatar
  • 96
2 votes

Why is there a white line on Russian fighter jets' instrument panel?

The white line is indeed for spin recovery, the Mig 15 procedure is to put the stick against it, count 3 revolutions, if the aircraft is not recovering then eject !
user31566's user avatar

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