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1s | [Music] |
---|---|
6s | since the locked-on update that came in |
8s | the spring of 2019 war thunder has been |
12s | regularly receiving vehicles equipped |
14s | with radar systems |
16s | various types of radar help control your |
18s | vehicles detect targets at longer |
20s | distances and in poor weather conditions |
23s | today radar systems can be found on |
26s | planes helicopters ground vehicles and |
29s | even naval vessels but what are those |
32s | types of radar and how are they |
34s | different |
35s | [Music] |
38s | the first type is a radar range finder |
42s | it allows you to lock on targets along a |
44s | fighter's boresight line and |
46s | continuously measure the distance to it |
49s | the data feeds into the gun's gyro site |
51s | to calculate lead |
53s | radar rangefinders use a wide fixed beam |
55s | which improves detection and lock-on |
58s | time |
59s | but this system comes with some flaws as |
61s | well they're affected by ground clutter |
64s | and thus incapable of detecting targets |
66s | at distances exceeding the fighter's |
68s | altitude |
72s | to control this radar you only need one |
74s | button lock radar irst on target it's a |
78s | simple on off switch once you turn it on |
80s | it locks onto the first target in the |
82s | direction of your flight and tracks it |
85s | if the target is lost the rangefinder |
87s | starts looking for it automatically |
93s | the next type of radar is the search |
95s | radar with a fixed beam its working |
97s | principle is very similar to |
99s | rangefinders they too use a wide fixed |
101s | beam to scan your environment in real |
103s | time and they suffer from ground clutter |
106s | just as much so they can't detect |
108s | objects at distances greater than your |
110s | fighter's altitude the main difference |
112s | found on this radar is its ability to |
114s | track both distance and direction of |
117s | your target to use this radar you'll |
119s | need to assign a button for switch radar |
122s | irst search on off |
129s | now let's talk about more modern |
131s | scanning search radar these can be found |
134s | on both planes and most anti-aircraft |
136s | systems this radar can provide both |
139s | distance and direction data about |
141s | targets employing a narrow beam that can |
143s | perform azimuth scanning of either a |
145s | sector or the full 360 degrees |
149s | due to this feature it can't show |
150s | real-time data the display is only |
153s | updated after the scanning beam finishes |
155s | its sweep on the plus side this type of |
157s | radar has a larger range than fixed beam |
160s | radar they can also be divided into two |
163s | subtypes the first one scans the whole |
165s | sector vertically using a wide beam |
168s | these radar systems are susceptible to |
170s | ground clutter and cannot find the |
171s | target's elevation |
173s | the second subtype scans a few bars |
176s | moving along a narrow beam vertically |
178s | when the beam scans an area above the |
180s | horizon the ground creates much less |
182s | clutter moreover these radar systems can |
186s | find the target's approximate altitude |
188s | to control scanning search radar systems |
190s | you can use the following functions |
193s | switch radar irst search on off change |
196s | scope scale change search mode select |
199s | target to lock and change radar irst |
203s | mode |
206s | [Music] |
208s | now we've mentioned ground clutter a few |
210s | times already up until the mid-1970s |
213s | fighters suffered significant |
215s | interference from it preventing beyond |
217s | visual range missile launches detecting |
220s | targets below the horizon level has |
222s | always been difficult because the beam |
224s | would touch the ground |
225s | war thunder can indicate the clutter in |
227s | radar scope and show its strength level |
230s | in addition to that target detection may |
232s | be harder if the fighter flies at a low |
234s | altitude it happens due to the radar |
237s | side lobes emitting and receiving |
239s | reflected signals |
241s | if the distance to your target is less |
243s | than your altitude ground clutter isn't |
245s | a problem since the enemy shows up in |
247s | your scopes before the clutter does |
250s | but all of this is only true for older |
252s | pulse radar systems technology progress |
255s | taught radar systems to look down |
260s | these systems use moving target |
262s | indication or mti for short and the |
265s | pulse doppler principle or pd both |
268s | technologies allow the radar to separate |
271s | ground clutter and moving targets by |
273s | their radial or doppler speed |
276s | pd radar systems generally provide |
278s | better object separation and better |
280s | detection range in look down modes |
282s | compared to mti radar still early pd |
286s | radar models like the one found on the |
288s | british phantom cannot range targets in |
290s | search mode only showing direction and |
293s | radial speed |
294s | moreover both types share a flaw they |
297s | cannot detect targets below the horizon |
300s | if the targets are flying perpendicular |
302s | to the radar beam |
304s | early pulse doppler and mti radar |
306s | systems also experience issues with |
308s | detecting tail on targets because |
311s | terrain moves at a high speed relative |
313s | to the fighter and ground clutter |
315s | prevents detecting targets flying along |
317s | the same direction |
319s | more advanced radar systems such as the |
321s | ones found on the f4 ej kai and the j37 |
325s | viggen can detect targets well both tail |
328s | on and moving towards them |
334s | by the way ground clutter is just as |
336s | much an issue for ground radar systems |
338s | pulse doppler and moving target |
340s | indicator technologies had been |
342s | implemented there even earlier than on |
344s | aircraft since ground radar moves less |
346s | and almost not at all compared to |
348s | aircraft radar they show a more reliable |
351s | performance |
352s | [Music] |
355s | the increasing popularity of radar |
357s | naturally led to the invention of |
359s | countermeasures we call it chaff chaff |
362s | is basically pieces of foil that show up |
364s | as fake radar targets aircraft equipped |
367s | with early radar systems see fake |
369s | targets in search mode and have troubles |
371s | in tracking mode as well |
373s | meanwhile pulse doppler and mti radar |
376s | systems are resistant to chaff they can |
378s | ignore countermeasures in search mode |
380s | along with the ground clutter in |
383s | tracking mode chaff only works if the |
384s | target is flying away from the fighter |
387s | or moves across its course |
389s | no chaff can prevent lock-on if the |
391s | target is flying at the radar |
400s | still radar systems are used for more |
403s | than target detection on fighters |
405s | they can also be employed to hit targets |
407s | with semi-active radar seekers these |
410s | seekers work much the same way as |
412s | regular radar the only difference is |
414s | that the emitter is found on board the |
416s | fighter while the receiver is on the |
418s | missile itself |
419s | there are two types of radar seekers the |
421s | first one is a pulse radar seeker these |
424s | can be found for instance on the r3r and |
426s | the r530 missiles |
428s | much like pulse radar found on fighters |
431s | they're susceptible to ground clutter |
432s | and can be fooled by chaff the more |
435s | advanced type is continuous wave seekers |
437s | like the r23r the r24r and the sparrow |
442s | they work like the pulse doppler radar |
444s | and use doppler filtering to separate |
446s | ground clutter and chaff |
448s | much like pd radar they cannot track |
450s | targets flying below the horizon level |
452s | across the line of sight and their tail |
455s | on range is much shorter |
460s | another type of radar found on aircraft |
462s | and ground vehicles is tracking radar |
465s | it's used for automatic target tracking |
468s | gun aim and air-to-air missile launches |
471s | they can use both fixed and tracking |
473s | beams measure distance and find the |
475s | target's direction |
477s | for instance the mig-19 pt radar uses a |
480s | fixed beam and its maximum tracking |
482s | angle is only seven degrees around the |
484s | bore sight line |
485s | meanwhile the f3 d1 uses a tracking beam |
489s | so its maximum tracking angle reaches up |
491s | to 60 degrees around the bore sight line |
495s | moreover such radar systems have a |
497s | significant range advantage the radar on |
499s | the tunguska and the gephard use a |
502s | tracking beam too and can also rotate |
504s | 360 degrees in azimuth or move between |
508s | minus 10 and plus 90 degrees in |
510s | elevation |
511s | [Music] |
515s | the tracking radar on the d3d1 and the |
517s | mig-19pt can lock onto targets in a |
520s | narrow sector at a specific distance |
522s | along the course of flight |
525s | the tunguska and the guipard radar |
526s | systems can acquire a target by |
528s | designation from the search radar in |
530s | third person view or by optical site you |
533s | can cycle targets to lock on by pressing |
536s | select radar |
537s | irst to lock or with a moving target |
540s | queue that can be controlled by keys |
542s | assigned for horizontal radar irst |
545s | target queue control axis |
547s | and vertical radar slash irst target cue |
550s | control axis |
552s | these axes only work if you disable the |
554s | option called target's cyclic switching |
557s | of aircraft radar for planes and |
558s | helicopters or targets cyclic switching |
561s | of ground radar for anti-air vehicles |
564s | and vessels a tracking radar performs a |
566s | fine search in the specified area to |
569s | lock onto a target ranging direction and |
571s | distance |
572s | if there's more targets in the area it |
574s | can lead to a lock on the wrong plane or |
577s | helicopter moreover a target with a high |
580s | angular velocity at close range can move |
582s | out of the tracking radar's detection |
584s | area rendering the fine search useless |
587s | it might look like a bug but it's a real |
589s | life problem for radar systems |
591s | replicated in the game |
593s | [Music] |
596s | to control the radar you can use the |
598s | lock radar irst on target button on |
601s | aircraft this command turns the radar on |
603s | and off which then automatically locks |
605s | onto a target tracks it and tries to |
608s | reacquire it if it's lost on |
610s | anti-aircraft vehicles this command is |
612s | used to acquire a target by search radar |
615s | designation or by optical sight |
621s | you should keep in mind an unpleasant |
623s | phenomenon happening when tracking |
625s | low-flying targets less than 100 meters |
627s | above the ground |
628s | due to signal reflection the so-called |
631s | multipath effect the direction to the |
633s | target may shift lower |
635s | this effect appears even when the radar |
637s | system has a pulse doppler or an mt1 |
640s | mode |
641s | in such cases an aa missile operator |
643s | might want to switch to the optical |
645s | tracking system if they have one or |
647s | target the missile manually |
649s | as for fighters with semi-active radar |
651s | homing missiles the only thing that'll |
653s | help them is a high angle of attack |
658s | [Music] |
660s | and now it's time to talk about the |
661s | system that adds this irst part to every |
664s | command we've mentioned |
666s | irst stands for infrared search and |
669s | tracking it's a passive sensor that can |
671s | detect a target's infrared signature |
674s | some radar such as the one found on the |
675s | mig-23 can only give the direction to |
678s | the target |
679s | others like on the stormer are equipped |
682s | with a laser rangefinder that can add |
684s | distance data to switch to the infrared |
686s | search and track sensors use the |
688s | following command switch between radar |
690s | and irst |
692s | [Music] |
695s | we'd like to finish this video with the |
697s | most complex systems combined search and |
700s | track radar capable of tracking targets |
702s | in multiple ways |
704s | for example the mig-21 smt in air combat |
707s | maneuvering mode can acquire targets in |
710s | a narrow sector along the bore site |
712s | direction the mirage 3e in beyond visual |
715s | range mode can attack the selected |
717s | target even out of sight |
719s | the phantom's radar systems can acquire |
721s | targets in both modes |
723s | let's go over the controls one more time |
726s | with search and track radar systems |
728s | switch radar irst search on off switch |
732s | between radar and irst |
734s | change scope scale change search mode |
737s | select target to lock |
739s | change mode |
741s | beyond or within visual range combat and |
744s | lock on target |
746s | [Music] |
748s | that's it for today friends our long |
751s | story about everything that has radar in |
753s | it has come to its end |
755s | we wish you less clutter and more beyond |
757s | visual range frags |
761s | [Music] |
787s | you |