s******t
发帖数: 1956 | 1 Russia’s new T-50 stealth fighter is fast, maneuverable, heavily-armed and
hard to detect on radar. In theory.
But according to Indian air force officials, in practice the Sukhoi-made
stealth jet is also too expensive, poorly engineered and powered by old and
unreliable engines.
The Indians’ complaints illustrate the yawning gulf between stealth
warplane design and the actual production of radar-evading jets. In other
words, it’s one thing to sketch an advanced warplane on paper. It’s quite
another to build one and get it to work.
All new aerospace development is difficult and many planes get poor reviews
early in testing. But the gripes coming out of New Delhi are particularly
worrisome for the Russians.
Sukhoi is working on two variants of the T-50—one for Russian use and
another for the Indians. The Indian air force has ambitions to purchase 144
of the stealth jets, and the money from this sale underpins the entire T-50
development effort. New Delhi is also kicking in $6 billion for design work.
Without the Indians’ cash, there wouldn’t be a T-50. And Russia would have
basically no hope of acquiring a stealth jet to counter the Americans’ F-
22s and F-35s and Chinese J-20s and J-31s.
The Russian version of the T-50 is reportedly simpler than the Indian
version, which includes Indian avionics and a wider range of compatible
weapons. Five Russian T-50 prototypes are flying. The Indian model still
exists only on paper.
But that hasn’t stopped the Indian air force from voicing its unhappiness
with the T-50. According to transcripts of December and January meetings
obtained by Business Standard, air force and defense ministry officials
listed at least four “shortfalls … in terms of performance and other
technical features”:
The AL-41F engines currently fitted to the T-50 are unreliable. The radar is
inadequate. The airframe is poorly built, with serious implications for the
jet’s stealth profile. And in light of these defects, $6 billion is too
much to pay up front.
According to Business Standard, Russian officials countered, saying the AL-
41F engines are a temporary fit until brand-new and more powerful motors can
be developed. The radar, too, is temporary—pending new sensors being
developed specifically for the Indian version of the warplane.
But the allegations of sloppy construction appear to be particularly serious
. Besides posing an accident risk, low-quality construction can result in
gaps and mismatched angles that elevate a plane’s radar signature.
Press reports in 2013 indicated that Sukhoi was having problems with quality
control in the T-50 effort. At least one of the prototypes needed patches
on its wings to keep from falling apart during high-stress maneuvers.
All the same, Business Standard speculates that the Indian complaints could
be somewhat politically motivated, as New Delhi is also planning to buy 126
new Rafale fighters from France for an eye-watering total price of $18
billion. Scrapping the T-50 could help India pay for the French jets. | D**********N
发帖数: 743 | 2 其实，一开始他们就知道会出不少问题。外形是最开始的，那两个巨大的进气口，对隐
身性能是个巨大的影响。如果真能如他们号称，一切都能解决，那目前的三代机都能极
大的改进空间了。何必花那么大投入去研发新机呢？ | s******t
发帖数: 1956 | 3
这样的机密武器托别人去搞，印度是自找麻烦。
【在 D**********N 的大作中提到】
: 其实，一开始他们就知道会出不少问题。外形是最开始的，那两个巨大的进气口，对隐
: 身性能是个巨大的影响。如果真能如他们号称，一切都能解决，那目前的三代机都能极
: 大的改进空间了。何必花那么大投入去研发新机呢？
| t*****9
发帖数: 10416 | 4 F35 定100条先 ～～
【在 s******t 的大作中提到】
:
: 这样的机密武器托别人去搞，印度是自找麻烦。
| c****h
发帖数: 4968 | 5 毛子解体后，工业技术远不如前，没有进步。就算是菜鸟也能看出t50的机身表面粗糙
，一个个铆钉大咧咧的露在外面，不如F25,J20。 | q*d
发帖数: 22178 | 6 三哥自己的LCA啥状况？
挑剔别人倒是毫不留情，
说不准T50都列装了，LCA还没好呢。
and
and
quite
reviews
144
50
work.
have
is
the
can
serious
quality
could
126
【在 s******t 的大作中提到】
: Russia’s new T-50 stealth fighter is fast, maneuverable, heavily-armed and
: hard to detect on radar. In theory.
: But according to Indian air force officials, in practice the Sukhoi-made
: stealth jet is also too expensive, poorly engineered and powered by old and
: unreliable engines.
: The Indians’ complaints illustrate the yawning gulf between stealth
: warplane design and the actual production of radar-evading jets. In other
: words, it’s one thing to sketch an advanced warplane on paper. It’s quite
: another to build one and get it to work.
: All new aerospace development is difficult and many planes get poor reviews
| q*d
发帖数: 22178 | 7 毛子乃至整个东欧干的活用一个字形容的话就是：
真特么糙
【在 c****h 的大作中提到】
: 毛子解体后，工业技术远不如前，没有进步。就算是菜鸟也能看出t50的机身表面粗糙
: ，一个个铆钉大咧咧的露在外面，不如F25,J20。
|
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