Severity: 8192
Message: Creation of dynamic property CI_URI::$config is deprecated
Filename: core/URI.php
Line Number: 101
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File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Router::$uri is deprecated
Filename: core/Router.php
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File: /home/hswlpfdo/public_html/index.php
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Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$benchmark is deprecated
Filename: core/Controller.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$hooks is deprecated
Filename: core/Controller.php
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Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$config is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
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Filename: core/Controller.php
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Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
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Filename: core/Controller.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property Website::$uri is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$exceptions is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$router is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$output is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$security is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$input is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$lang is deprecated
Filename: core/Controller.php
Line Number: 82
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$db is deprecated
Filename: core/Loader.php
Line Number: 396
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
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Message: Creation of dynamic property CI_DB_mysqli_driver::$failover is deprecated
Filename: database/DB_driver.php
Line Number: 371
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
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Function: __construct
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Function: require_once
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Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 132
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
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Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
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Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
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Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
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Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 358
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 282
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 289
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 304
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 314
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 315
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 316
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 317
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 375
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 110
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Session cannot be started after headers have already been sent
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Website::$session is deprecated
Filename: core/Loader.php
Line Number: 1283
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 9
Function: __construct
File: /home/hswlpfdo/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property Website::$Model is deprecated
Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 10
Function: model
File: /home/hswlpfdo/public_html/index.php
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Filename: core/Loader.php
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Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
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Filename: core/Loader.php
Line Number: 931
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
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Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
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Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
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Function: view
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Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
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Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
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Function: view
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Function: require_once
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Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
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Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
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Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
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Filename: core/Loader.php
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File: /home/hswlpfdo/public_html/application/controllers/Website.php
Line: 155
Function: view
File: /home/hswlpfdo/public_html/index.php
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Function: require_once
The Rolls-Royce Avon is one of the most successful early jet engines developed by the British engineering company Rolls-Royce plc. Introduced in the late 1940s, the Avon became a powerful and reliable turbojet engine widely used in both military and commercial aircraft. Its advanced design and high performance made it a key technology in the development of modern aviation.
The Rolls-Royce Avon was designed during the early era of jet propulsion when the aviation industry was transitioning from piston engines to jet engines. Compared to earlier turbojet engines, the Avon featured a multi-stage axial compressor, which significantly improved airflow efficiency, engine power, and reliability.
The engine first ran in 1945 and entered service in the early 1950s, quickly becoming one of the most widely used jet engines of its time.
1. Axial Flow Compressor
The Avon engine uses a multi-stage axial compressor that compresses incoming air efficiently before combustion.
2. High Thrust Output
Depending on the variant, the Avon engine can produce thrust ranging from 6,500 to 17,000 pounds, making it suitable for high-performance aircraft.
3. Robust and Reliable Design
The engine was known for its durability, ease of maintenance, and long operational life.
4. Versatile Applications
The Avon was used in both military fighter jets and commercial passenger aircraft.
The Rolls-Royce Avon powered several iconic aircraft, including:
English Electric Canberra – A famous jet bomber used by several air forces.
Hawker Hunter – One of the most successful fighter aircraft of the 1950s.
de Havilland Comet – One of the world's first commercial jet airliners.
Sud Aviation Caravelle – A short-range passenger jet widely used in Europe.
Apart from aviation, the Rolls-Royce Avon was also adapted for industrial gas turbine applications, particularly in the oil & gas and power generation industries. Industrial Avon gas turbines are known for their reliability and efficiency in demanding environments.
The Rolls-Royce Avon engine played a major role in the development of modern jet propulsion. Its innovative design, high thrust capability, and long service life made it one of the most influential jet engines of its era. Even today, industrial variants of the Avon continue to operate in power and energy sectors worldwide.