VN3 platform
China

AC352 (Airbus EC175)
a Sino-French project has it's first flight recently
http://www.safran-helicopter-engines.com/media/chinas-ac352-completes-first-flight-wz16-engine-20161220?shadowbox=1.

it's the most advanced design civilian helicopter of it's class

stevebond007:

I like the plane, its very rugged, they call it the Jeep of the skies

I get this I will travel around the world!

most airlines buy it for commercial use or rent.

nemesis2u:


do they accept blank cheques

me think negotiatable
how many do you want

stevebond007:



My favorite aeroplane.
I like am.
You have idea on the asking price?

Cessna 208b Grand Caravan EX
the 2 pic

roughly around 2.5 million USD for brand new,there are comparing price online by Google.

China tested world leading (Experimental Advanced Superconducting Tokamak ) Nuclear fusion device for 102 seconds.the core temprature about 50 million °K degree 3 times higher than the Sun.

nemesis2u:


if i live in a small town what will be the probable price of 1 kg chicken ?

there is the average price 4$,you may see lower than some african country
it varies in differet places,but small town generally lower

most low price chiken in China are industralized feed only 45 days.thus bring the average price down.

tdayof:


I don't think Chicken is expensive in china. Probably I am used to the exchange rate. A carton of laps cost around 55-60rmb at the morning market and that is less than 10USD during day time it's sure going to be expensive as a single lap goes for around 1USD 6-7rmb so equivalent of a carton will almost be 80-120rmb.

As a foreigner, they will always hike the price with the insinuation that you've got enough money and that you are a newbie.

but in supper market ,and some southern cities the price is a little bit higher.and mostly feed with fodder,for wild feed chiken it's more expensive.

nemesis2u:


thanks for the info, also in rural areas is the chicken price lower ?

the link does not open though

in rural areas off course it could be 50% or more cheaper.

nemesis2u:


u mean 1 kg cleaned chicken (with feathers and internals removed ) is 15-20 american dollars !!!! .
is it a typo ?

thanks

around $ 6 /kg

http://m.yhd.com/item/65574311?tp=5048.65574311.H5_HOMEPAGE_PROVINCE.0.1.L`8veES-10-4Qwah&ti=GVN7db

giles14:
where I leave dey don't sell in kilo.
but one can get a chicken for $4~5

a chicken in china $15-20
40RMB per kg

Pacific Aerospace setup a joint venture to build PAC P-750 in China . it may use China made WJ9 engine the same as used on Y-12 or PT6 CANADA engine

Crew: one (pilot)
Capacity: Pilot + nine passengers or 17 parachutists [6]
Length: 11.84 m (38 ft 10 in)
Wingspan: 12.80 m (42 ft 0 in)
Height: 4.04 m (13 ft 3 in)
Wing area: 24.88 m2 (268 ft2)
Empty weight: 1410 kg (3100 lb)
Gross weight: 3395 kg (7500 lb)
Powerplant: 560 kW (750 hp)

Maximum speed: 315 km/h (196 mph)
Cruising speed: 259 km/h (161 mph)
Stall speed: 107 km/h (66 mph)
Range: 2183 km (1179 miles)
Endurance: 8 hours
Service ceiling: 6098 m (20,000 ft)

german WWII antique MK108 only 58kg weight, but 30mm autocannon

hongdu CJ-7 (L7) is a joint project with yakovlev with both side have rights to make modification.. it can be equipted with different engines 360hp,500hp,700hp

nemesis2u:

https://www.youtube.com/watch?v=2ljvIsTGn1o


HAL's HTT40 in its repainted avatar.

hoe much is it ?comparing with Yak-152 , CJ-7

iblawi:
Nemesis2u and chinese8107

What if your argument on the use of C++ for F-35 have something to do with cuda programming introduced in 2007. Cuda is an extention of C/C++ used for programming GPUs to process complex operations within a very short time.

Cuda is still very recent and only C/C++ can be used for now. Cuda enables parallel processing on the CPU and GPU simultaneously. GPUs have thousands of cores to compared to CPU with just few cores.

CUDA is a parallel computing platform and application programming interface (API) model created by Nvidia

It allows software developers and software engineers to use a CUDA-enabled graphics processing unit (GPU) for general purpose processing

I v no idea if F-35 uses Nvidia GPU chip in it's build-in computer. but there is possibility.

AVIC HO300
amphibious

Cessna 208b Grand Caravan

US Amphibious plane assembed in China

AVIC AC2

D4 Fascination

German designed made in Germany or China ,made of composite materials not as expensive as a luxsry car ,even a civilian feels affordable

9.5 hour air endurance.
2200km range
270 kg payload
248km/hour speed

nemesis2u:


lol i am asking about programming language

the most widely used C/C++

off course. but not limited to .

nemesis2u:


i dont think so because code is encrypted, almost unbreakable

f22 uses ada because ada is better however for F35 they selected c/c++ because of the lack of ada programmers , ada tools , training and processor support and to keep development costs down.

their first choice was always ada but because of the above reasons they selected c/c++
why do u think f35 is always running into software problems because as i already explained above it is due to the inherent deficiencies long associated with buffer overflows, type errors etc etc.
many of the deficiencies have been managed but still some manage to crop up inadvertently.

also the export F35 will get watered down and most probably "snoop enabled" software versions

china uses which language for its j10 j20 aircrafts

F-35 is a joint project with many US allies ,they must share some code at least partly.

Snoop enable version almost for sure

US has this habit .And most of their allies can't resist no matter how expensive it is.they have no other choice.they can't develop it indenpendently.

J20 has it's own operating system which is classified.

nemesis2u:


did u even understand what i wrote , read it again . 40% (especially the last paragraph was all about how they went about implementing C/C++ in F35 and why they selected C/C++ in the first place ) of what i wrote is related to F35 C/C++ usage, its troubleshooting, implementation etc. and i said explicitly can any other countries take the same risk as the US took when they decided to use C/C++ in its trillion dollar fighter program. software development accounted for almost half the amount.

SMH
u should atleast read what i write and then understand it clearly before replying

only a experienced coder will understand what i wrote , ru a programmer ?
i doubt that

guess why F-35 uses c++

f-22 not,because they don't want to leak their" core secret"
F-35 is for sale,or co-develop with other contries.it does not matter it cost much money,other countries have money can buy.

just like on a smart phone. the IOS and Andriod(linux)
thet are both good operating systems with similar usages.
But IOS is not open sourse code and never open .while linux is.

nemesis2u:
the much awaited big fight : ada ver C/C++

Verification is one of the biggest driving factors (and costs) in processor and programming language usage. All hardware and software must have a safety level attached to it, with the most critical functions (like avionics for autoland) considered "Level A" meaning such a failure of the avionics could be catastrophic. In order to achieve the stringent safety requirements for Level A software (which is often one such failure per 10^9 flight hours), the software and hardware need to be exhaustively tested to ensure nothing will ever go wrong. That includes covering every condition on every line of code. Most tools developed to work with your programming language and software architecture needs to be formally verified ( usually called "qualified" ) as well. Ada trumps here but C/C++ also is not far

Ada continues to exist because it is the most technically suitable language for the development and maintenance of high integrity systems with long shelf lives. Ada offers good support for mixed language systems (e.g. Ada for real time/high integrity system components and Java for GUI components. also unlike Ada C++ provides no support for real time systems.

Software Development vs Software Maintenance which one is the bigger pain in the ass ?
C/C++ will lead to lower development cost but Ada will lead to lower maintenance cost (60-80+% of the lifecycle costs of a software occurs in maintenance ). so take ur poison of choice (which is better slow poisoning or long poisoning )

C/C++ offer higher compiler/tool availability versus Ada hence its popularity ,but is popularity an alternate to security/safety concerns

Ada is more strongly typed than C++
(for those who dont know : In computer programming, programming languages are often colloquially classified as strongly typed or weakly typed . These terms do not have a precise definition, but in general, a strongly typed language is more likely to generate an error or refuse to compile if the argument passed to a function does not closely match the expected type. On the other hand, a very weakly typed language may produce unpredictable results or may perform implicit type conversion.) [strongly typed is better]


Several features make Ada ideal for compact and efficient embedded applications. One is support for multitasking within the language. Java offers similar support, but C and C++ turn it over to the operating system (OS), making it difficult to migrate applications because they are now tied to a particular OS and possibly a particular version of that OS.

while coding safety critical software's minimizing bugs is the key, and Ada does a better job at it than C and, to a lesser degree, C++.
Ada advantage is that it essentially eliminates buffer overflows and type errors. These vulnerabilities are the ones most commonly exploited by cyber attackers.They are chronic in C and C++. (“Many other programming languages provide runtime checking and in some cases even compile-time checking which might send a warning or raise an exception when C or C++ would overwrite data and continue to execute further instructions until erroneous results are obtained which might or might not cause the program to crash. Examples of such languages include Ada, Eiffel, Lisp, Modula-2, Smalltalk, OCaml and such C-derivatives as Cyclone, Rust and D. The Java and .NET Framework bytecode environments also require bounds checking on all arrays.”)

Ada error rate and cost-to-fix rates are lower than C and C++ therefor Reliability and Safety of Ada is better than C++

In addition, as early as 2002, the Certification Authorities Software Team (CAST) identified common problems with C++ in DO-178B-compliant applications including compile and run-time issues (the FAA recommends using DO-178B as the vehicle to demonstrate that software is airworthy). There are issues such as dynamic memory allocation in C/C++, which is forbidden, under the DO-178B standard, in safety-critical embedded avionics code. Some of the concerns with D)-178B have to do with the OO features of languages such as C++. Examples include: the overuse of inheritance, particularly multiple inheritance, which can lead to unintended connections among classes, and ambiguity resulting from Inheritance, polymorphism, and operator overloading through dynamic or run-time linkage.

but the F35 is coded using C/C++ ? ....so you are very very very wrong so stop the crap

my reply:

lolzzz during the initial phase Ada was seen as the technically superior and more robust language, but concern over the ability to successfully staff the software engineers required to develop the massive amounts of safety critical software caused the F-35 team to carefully look and finally to choose C and C++ for the implementation of safety critical software. Primary factors in this choice were training availability, tool support, and processor support. Another key factor was type casting, not as a language feature, but as a hiring feature. Many of the university students simply refused to work Ada as it was not seen as a marketable experience base.

result : on one hand critical software failures of F-35 happening time and again, still continuing.........

but on another hand Concerns with dynamic binding, polymorphism, and inheritance mechanisms have been dealt with largely in the coding standards(JSF AVC++ Coding Standards). For both C and C++ Static Code Analysis (SCA) tools have been used to ensure that restricted features are not utilized. Arguments about the lack of reliability in either C or C++ have been addressed by programming standards restrictions and SCA check. This was mainly done by developing a list of restrictions, to provide a method of enforcement (automated) and to perform code coverage during unit testing (in unit testing full structural coverage is required either at the object code level (for the highest reliability software) or at the source level (safety involved software).)

good nah ! trillon dollar question is how many countries have the ability to emulate it or gamble billions of dollars of hardware on successfully implementing C/C++ to safety critical systems ?

https://news.ycombinator.com/item?id=7628746
F-35 uses c++ . they don't need many contries

bidexiii:
Ngamboru Ngala standard.....

Care to join ........

wow is this wild animal or raised? some countries have law to protect wild animal

Toyota Mega Cruiser

JSDF

South Korea KIA KM420

Japan self defence force
mitsubishi pajero type-73 "jeep"

EQ2082 6x6 off-road

DongFeng EQ2050 modified airborne assult vheicle

LYT2021 (SX-1)airborne assult vheicle
is modified from BJ212 off course BJ212 itself is air-dropable