(Handley Page) Herald @·AIRCRAFTUBE

  • Handley-Page HPR-7 Dart Herald 209 Handley-Page HPR-7 Dart Herald 209
    Handley-Page HPR-7 Dart Herald 209
  • HPR-7 Dart Herald 401 HPR-7 Dart Herald 401
    HPR-7 Dart Herald 401
  • Handley-Page HPR-7 Dart Herald 213 Handley-Page HPR-7 Dart Herald 213
    Handley-Page HPR-7 Dart Herald 213
  • HPR-3 Herald - Farnborough 1955 HPR-3 Herald - Farnborough 1955
    HPR-3 Herald - Farnborough 1955
  • Handley-Page HPR-7 Dart Herald 102 (1960) Handley-Page HPR-7 Dart Herald 102 (1960)
    Handley-Page HPR-7 Dart Herald 102 (1960)
  • Handley-Page HPR-7 Dart Herald 214 (1984) Handley-Page HPR-7 Dart Herald 214 (1984)
    Handley-Page HPR-7 Dart Herald 214 (1984)
  • HPR-7 Dart Herald Series 202 HPR-7 Dart Herald Series 202
    HPR-7 Dart Herald Series 202
  • Handley-Page HPR-7 Dart Herald 211 Handley-Page HPR-7 Dart Herald 211
    Handley-Page HPR-7 Dart Herald 211
  • Handley-Page Dart Herald (1962) Handley-Page Dart Herald (1962)
    Handley-Page Dart Herald (1962)
  • Handley-Page HPR-7 Dart Herald 214 Handley-Page HPR-7 Dart Herald 214
    Handley-Page HPR-7 Dart Herald 214
  • Handley Page HPR-7 Herald 203 at Jersey Airport Handley Page HPR-7 Herald 203 at Jersey Airport
    Handley Page HPR-7 Herald 203 at Jersey Airport
  • Handley Page HPR-7 Herald 213 Handley Page HPR-7 Herald 213
    Handley Page HPR-7 Herald 213
  • Rolls-Royce Dart Mk.520 Rolls-Royce Dart Mk.520
    Rolls-Royce Dart Mk.520
  • A Dart Herald 209 of Arkia at Abu-Rudes A Dart Herald 209 of Arkia at Abu-Rudes
    A Dart Herald 209 of Arkia at Abu-Rudes
  • Handley Page HPR.7 Dart-Herald 210 at Southend in 1966 Handley Page HPR.7 Dart-Herald 210 at Southend in 1966
    Handley Page HPR.7 Dart-Herald 210 at Southend in 1966
  • HPR.7 Dart-Herald (1977) HPR.7 Dart-Herald (1977)
    HPR.7 Dart-Herald (1977)

Handley Page Dart Herald

In the mid 1950s, The pioneering Handley Page Aircraft Company founded by Sir Frederick Handley-Page, developed a new fast short-range feederliner, intended to replace the venerable Douglas DC-3. The design, originally known as the HPR-3 Herald, emanated from the drawing office at Handley Page (Reading) Limited - the former Miles Aircraft factory site, which developed an earlier design; the Miles Marathon. The Herald was an extensive development of the original concept of the Marathon, notably its high mounted wing. The HP Reading division succeeded in producing a modern design, which had excellent flight and performance characteristics. However, the company made a serious misjudgment, and the Herald missed its chance, like other classic British aircraft of the time.

As the HPR-3, the Herald was originally configured with four Alvis Leonides Major piston engines of 870 hp (650 kW) each, driving conventional three-bladed props. By now, however, the Rolls-Royce Dart turboprop engine had shown proven success in the Vickers Viscount. HP failed to take early account of this in the Herald design phase; particularly the market desire for the new turboprops. This misjudgment and the ensuing delay was to prove a costly mistake for the company.

However, the Herald was advanced in many ways for the time. Its pressurised cabin up to 30,000ft, could seat up to 47 passengers in the series 100 (up from 44 originally) and could easily exceed 300mph in level flight. Initial climb rate was over 1800ft/min. The "Herald" prototype first flew on August 25, 1955. Although Queensland Airlines, Australian National Airways, and Lloyd Aereo Colombiano had initially placed 29 orders, these were later cancelled with only the first prototype completed. As a result Handley Page belatedly realised it had to make a major change to the engine configuration, if the Herald was to have any chance in the market.

There had already been a very substantial investment in the Herald project, such that the Management held a meeting to discuss continuation. Handley Page decided to press ahead with the Herald project, in an effort to recover the investment; announcing a new uprated version, reworking the wing to use Rolls-Royce Dart turboprops fitted with 12.5ft variable pitch four-bladed Dowty Rotol props, & lengthened fuselage by 20 inches (50.8 cm). The first prototype series 100 first flew in 1958. Now designated the HPR-7 Dart Herald, the new aircraft entered production in 1959. The first order being placed by BEA.

The Herald attracted much early interest around the world because of its astonishing short field performance and excellent flight characteristics, but Handley Page failed to close many of the deals, as the F-27, and the HS 748 had become rival offerings, both of which were significantly cheaper. There has been some speculation about the origin of the F-27 design, which first flew earlier than the Herald in turboprop configuration. A key design feature of the Herald was the high mounted wing but notably with an upswept dihedral. In addition, the Herald's vertical fin is covered in miniature aerofoils, adding further to the Herald's excellent stability.

Pilots reported the Herald flew like a dream; very stable in the air, yet highly manoeuverable even at slow speed. Ground handling was said to be the Herald's only vice due to an overlarge tail fin. Credit for the Herald's useful wing and aerofoil features was due to the company's wing design office, which had garnered an unrivalled reputation for advanced wing design, including the crescent wing of the Victor bomber. Handley-Page invented the Slot, later referred to as the Handley-Page Slot, without which most modern aircraft would not be nearly so easy to manage at slow speeds.

Despite the rework, that transformed the HPR-3 to the HPR-7 Herald, only four of the original 47 seat Series 100 HPR-7s were built. Believing a yet larger version was needed, HP turned to Series 200 production, which featured a further 40 inch (1.07 m) stretch of the fuselage, seating up from 47 to 56 and corresponding increased weights. Series 200 Production began in 1961. The first production model was delivered to Jersey Airlines in January 1962. However, by this point all sales momentum had been lost, and only 36 examples of this major production model were eventually built during the six years of production.

The Herald 400 was specially developed in 1964 as a "tactical transport" built for the Royal Malaysian Air Force, with a strengthened cabin floor. HP suspected that the Herald was still too small and so a 60-seater series 700, powered by Dart 532's and having increased fuel and weights was designed.

A late attempt was made to revive sales when speculative production commenced on 8 series 700 airframes. The project was cancelled as several of the airframes were approaching completion. The partially completed airframes were scrapped. The 50th, and last, Herald (a series 200 for Israel's Arkia) was flown and delivered in August 1968, after which Herald production ceased and attention turned to the Jetstream 137.

It is widely thought that the misjudgments made during the Herald project, necessitating major design changes so late in the design cycle, was to prove the company's fatal mistake. Moreover, HP had been doggedly independent throughout its history. The UK Government favoured placing orders for military and civilian aircraft with the newly nationalised aircraft constructors, combined under the name British Aircraft Corporation (BAC). Sir Frederick Handley-Page was very much against nationalisation. Even after his death in 1962, the company continued to plough on as an independent constructor. But this policy saw HP lose out to BAC in military and civilian orders by Government, with the notable exception of the HP Victor, which sold on its undoubted merit.

The demise of Handley-Page was unfortunate. The company made a series of catastrophic errors, not least of which, was failing to judge the changing needs of the airlines that expressed early interest in the Herald. The company did not have the stomach to press ahead in a difficult economic climate effectively competing with a much larger company. Development of the Herald had proven to be an extremely expensive project. Despite much hope over the Jetream 137, and possible new variants of the Herald, with eight speculative builds at various stages of completion, Management made the difficult but brave decision to wind the company up.

Handley Page went into voluntary liquidation on the close of its books on 31 March 1970. The profitable HP137 Jetstream operation and drawing and design staff were the only useful parts of Handley-Page left, but it was not enough for the company to survive as Handley-Page. The Jetstream operation was sold and transferred to Scottish Aviation, later to become a subsidiary called Jetstream Aviation. This company was later acquired by and absorbed into BAe. The Jetstream went on to be a successful commuter offering.

The Herald's last ever passenger flight was operated by British Air Ferries in 1987 doing subcharters for Ryanair on the Waterford-Luton route. A durable & reliable aircraft, capable of being heavily worked, many continued on as freighters, plying the night sky across Britain and the near continent, for several operators including Royal Mail, BAF, Channel Express, DHL, Elan, Securicor & others; transporting papers, milk, parcels, post, tomatoes, flowers, and other goods round the clock. Some aircraft were in a specially convertible configuration, flying passengers by day and goods all night, but by 1999 the only one remaining in service, was a series 400 (G-BEYF) with Channel Express; it was retired at the end of March that year. The most similar design in service today is the DeHavilland Canada / Bombardier DASH-8; a similarly configured twin turboprop STOL which also employs a high mounted high lift wing.

Variants

HPR-3 Herald : Prototype four piston engines - seating capacity 44.

HPR-7 Dart Herald :

  • Series 100 : Initial production version 4 built.
  • Series 200 : Fuselage length increased from 71ft 11in to 75 ft 6 in and maximum accommodation rose from 47 to 56 seats. 36 built.
  • Series 300 : Proposed version with modifications to meet United States Airworthiness requirements.
  • Series 400 : Side-loading military transport derivative of the Series 200 incorporating a strengthened floor for carrying freight, 50 troops or 24 casualty stretchers and medical attendants. 8 built for the Royal Malaysian Air Force.
  • Series 500 : Proposed more powerful version of the 400.
  • Series 600 : Proposed version with 5ft increase in fuselage length and more powerful Dart turboprops. High-density accommodation for 64-68 passengers.
  • Series 700 : Longer range version similar to the Series 600 but without fuselage lengthening. Ten ordered by VASP but production not initiated.

Civil operators

  • Brazil : SADIA SA Transportes Aereos (Later renamed Transbrasil).
  • Canada : Eastern Provincial Airways, Maritime Central Airways, Nordair.
  • Colombia : La Urraca
  • France : Europe Aero Service, Touraine Air Transport.
  • Germany : Bavaria Fluggesellschaft.
  • Guatemala : Aerovias
  • Israel : Arkia
  • Italy : Aerolinee Itavia.
  • Jordan : Alia Jordanian Airlines.
  • Philippines : Air Manila International.
  • Switzerland : Globe Air
  • Republic of China Taiwan : Far Eastern Air Transport.
  • In the United Kingdom : Air UK, Autair Internationa Airlines, BAC Charter, BAC Express, British Air Ferries, British European Airways, British Island Airways, British Midland Airways, British United Island Airways, Channel Express, Court Line, Janes Aviation, Jersey Airlines, South East Air, MMM Aero Service.

Military Operators

  • Royal Jordanian Air Force.
  • Royal Malaysian Air Force.

Accidents and incidents

On August 10 1958 the prototype Dart Herald was due to appear at Farnborough air show but suffered an engine failure en route from Woodley. The fuel lines ruptured and a serious fire ensued. The engine bearers burned through and the aircraft was finally crash landed by the pilot, Squadron Leader H Hazelden in a field. The landing was accounted an astonishing feat of airmanship. An early sales tour piloted by Hazelden encompassed over 40,000 flying miles to Australasia and back.

— — — = = — — —

This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Handley Page Dart Herald of Wikipedia ( authors )

Specifications (Dart Herald 200)

  • Crew : 2.
  • Capacity : 56 passengers.
  • Length : 75 ft 9 in (23.1 m).
  • Height : 23 ft 11 in (7.3 m).
  • Wingspan : 94 ft 10 in (28.9 m).
  • Wing area : 885.5 ft² (82.3 m²).
  • Empty weight : 25,705 lb (11,684 kg).
  • Max takeoff weight : 43,700 lb (19,818 kg).
  • Maximum speed : 307 mph (495 km/h).
  • Cruise speed : 275 mph (445 km/h).
  • Range : 1,090 miles (1,750 km).
  • Service ceiling 29,700.
  • Rate of climb : 1,850 ft/min.
  • Powerplant : Two Rolls-Royce Dart Mk.527 turboprops.
  • Power : 2,105 hp (1,570 kW) each.

— — — = = — — —

This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Handley Page Dart Herald of Wikipedia ( authors )
Handley Page Herald & Dart Herald : Your comments on this subject
Powered by Disqus
Top
Legal Credits FAQ Help Site Map

Terms of use for the services available on this site

By using this Website, Users agree to the following terms of use and rules :

Definitions

  • Webmaster : Head Administrator with all authority over the management and development of the Website.
  • Administrator : Anyone that was given by the Webmaster full or partial access to the Website's structure or with moderation rights on messages posted by Users.
  • User or Visitor : Any person visiting the Website pages.
  • Website : The following provisions apply to a single Website accessible via the www.aircraftube.com, www.aircraftube.org, www.aircraftube.net and www.all-aircraft.com. URL's
  • Service : All free informations and tools contained on the Website.
  • Comments : All text written by users on Blogs and comment pages available on the Website.
  • Media : All media available on or through the Website. One must distinguish the local media (photos, curves, drawings) and the external media (videos) which the Website refers.

    • Purpose of this site

    The purpose of this non-commercial site is purely educational. Reflecting a passion, it is also there to preserve the memory of all those who gave their lives, their health or energy in the name of freedom, aviation safety or simply our passenger comfort.

    Copyright

    Some media may have escaped the vigilance of Administrators with regard to copyrights. If a user reports copyright infringement, he will be asked to prove that he is indeed the rights's owner for the concerned media. If so, his decision on the Administrator's next action will be respected: A total suppression of the Media on the Website, or the addition of some owner's reference. The publication of a media on the internet normally having as a goal to make it visible to many people, the Administrators expect in any case that the second option will be most often chosen.

    Pursuant to the Law on copyright and related rights, the user has the right to download and reproduce information on the Website for personal use and provided that the source is mentionned. They cannot however be used for commercial or advertising purposes.

    Using Blogs and filing comments

  • Moderator : The Administrator reserves the right to prevent the publication of comments that are not directly related to the Service without providing any explanation. Similarly, all insults, out of scope or unethical material will be banned.
  • Identification : Persons wishing to post a comment or use any form of contact are required to provide identification by the means of a valid e-mail address.
  • Responsibilities : Comments are posted on the Website under the unique responsability of their authors and the Administrators may in no case be liable for any statements or claims that the users might have issued.

    • As the comment system is hosted and maintained on servers external to the Website, the Administrators may in no circumstances be held responsible for the use that administrators of these servers or other third parties may have with those comments or filed data.

    Content Liability

    The Administrators carefully check the reliability of the sources used. They cannot, however, guarantee the accuracy of any information contained on the Website, partly because of the multiple sources from which they come.

    JavaScript and cookies - Storing information

    This Website imperatively uses JavaScript and cookies to function properly. Neither of these technologies, or other means shall in no case be used on the Website for the retention or disclosure of personal information about Visitors. Exceptions to this rule will involve storing the Users banned for inappropriate comments they might have given as well as contact information for Users wishing to subscribe to future newsletters.

    When a user accesses the Website, the corresponding servers may automatically collect certain data, such as IP address, date and time of Website access, viewed pages and the type of browser used. This information is kept only for the purpose of measuring the number of visitors to the different sections of the site and make improvements.

    Donations - Advertising

    To continue providing the Service for free, the Webmaster reserves the right to insert advertising or promotional messages on any page of the Site. In the same idea, any donations will only by used to cover the running costs of the site, such as hosting, connection fees, hardware and software necessary for the development and maintenance of the Website.

    Links and other websites

    Administrators shall in no case be liable for the non-availability of websites operated by third parties to which users would access through the Website.

    Administrators assume no liability for any content, advertising, products and/or services available on such third party websites. It is reminded that those sites are governed by their own terms of use.

    Placing a link to third party sites or authorize a third party to include a link on their website refering to this Website does not mean that the Administrators recommend in any way the products or services offered by these websites.

    Modifications

    The Webmaster reserves the right to modify at any time without notification the present terms of use as well as all content or specific functionality that the Website offers.

    The modified terms and conditions immediately apply to the using Visitor when changes come online. Visitors are invited to consult the site regularly on the most current version of the terms and conditions

    Governing Law and Jurisdiction

    These general conditions are governed by Belgian law.

    In case of dispute regarding the interpretation and/or execution of the above terms, the parties agree that the courts of the district of Nivelles, Belgium shall have exclusive jurisdiction power.

    Credits page

    Wikipedia.org

    Wikipedia is a collaboratively edited, multilingual, free Internet encyclopedia.

    Youtube

    YouTube is a video-sharing website on which users can upload, view and share videos.

    Special thanks to all Youtube quality aviation vids providers, specially (Those I forgot, please excuse me or report) :

    Airboyd
    Andys Video
    Aviation videos archives
    Bomberguy
    Classic Aviation TV
    Historical Aviation Film Unit
    Horsemoney
    Jaglavaksoldier
    Joluqa Malta
    Just Planes
    Koksy
    Classic Airliners & Vintage Pop Culture
    Memorial Flight
    Octane130
    Okrajoe
    SDASM archives
    Spottydog4477
    The Aviators TV
    Valentin Izagirre Bengoetxea
    Vexed123
    VonBerlich
    Zenos Warbirds

    Bundesarchiv

    The German Federal Archives or Bundesarchiv are the National Archives of Germany.

    FAQ

    I don't see my comments any more!

    Please note that each page has it's own comment entry. So, if you enter a comment i.e. on the B-747, you will only see it on that related page.

    General comments are accessed via the "BLOG En" button.

    Comments are moderated, so please allow some delay before they appear, specially if you are outside Europe.

    Menus are developing below the page, because they are too long!

    But they remain accessible, for example by scrolling the mouse wheel, or with your finger (on the menu) on a smartphone or tablet.

    I see adds on all videos.

    Use a good free add remover software.

    The site is loading random pages at startup.

    We think it is a good way to bring back the memory of aircraft, persons or events sometimes quite forgotten.

    HELP PAGE

    Why this site?

    Discovery

    This website is dedicated to one's aeronautical passion (which I hope we share) and was realised mainly as an educationnal tool. Knowing that, you'll notice that each new visit brings random topics for the purpose of making new discoveries, some achievements or characters certainly not deserving the oblivion into which they have sometimes fallen.

    By these pages, we also want to pay tribute to all those who gave at one time or another, their lives or health in the name of freedom, aeronautical security or simply our comfort.

    Centralisation

    Internet is full of websites dedicated to aviation, but most are dedicated to subjects or periods that are very limited in space or time. The purpose of this site is to be as general as possible and thus treats all events as well as characters of all stripes and times while putting much emphasis on the most significant achievements.

    The same years saw birth of technologies like photography and cinema, thus permitting illustration of a large part of important aeronautical events from the start. Countless (and sometimes rare) media recently put online by enthousiasts finally give us access to these treasures, but the huge amount of information often makes things a little messy. A centralization effort is obviously most needed at this level.

    All persons who directly or indirectly contributed to the achievement or posting of such documents are here gratefully acknowledged.

    General

    Fluid website

    This site automatically fits the dimensions of your screen, whether you are on a desktop computer, a tablet or a smartphone.

    Bilingual website

    You can change the language by clicking on the flag in the upper left or via "Options" in the central menu. Of course, the videos remain in the language in which they were posted ...

    Browser compatibility

    The site is not optimized, or even designed to run on older browsers or those deliberately deviating from standards. You will most probably encounter display issues with Internet Explorer. In this case, it is strongly recommended installing a modern (and free!) browser that's respecting the standards, like Firefox, Opera, Chrome or Safari.

    Cookies and Javascript

    This site uses cookies and JavaScript to function properly. Please ensure that your browser is configured accordingly. Neither of these technologies, or other means shall in no case be used on the Site for the retention or disclosure of personal information about its Visitors. See the "Legal" page for more on this subject.

    Website layout

    Left menus

    Because of the lack of space on smartphones and small tablets, these menus are hidden. Everything is nevertheless accessible via the main menu option, located between the video and photo sections. This menu is placed there for compatibility reasons with some browsers, which play the videos over the menus.

    "Search" and "Latest" :
    The link "In Titles" restricts the search to the titles of different forms. Use this option if you are looking for a plane, a constructor, a pilot or a particular event that could have been treated as a subject.

    The link "In Stories" will bring you to a search in all texts (the "Story" tab) and will take more time. The search term will appear highlighted in green when opening the corresponding story.

    Would you believe, "Timeline" will show all subjects in chronological order.

    "Random" will reload the entire page with a new random topic.

    The bottom section keeps you abreast of the latest five entries. New topics are added regularly. Don't hesitate to come visit us often : add bookmark.

    Blogs and Comments central section

    Under the photos section comes the comments tabs window :

    You can enter general comments in your own language via one of the two buttons on the left (BLOG EN and BLOG FR). Note that these buttons are accessible regardless of the language to allow some participation in the other language.

    All comments are subject to moderation and will be published only if they comply with the basic rules of decorum, while remaining relevant to the purpose of this site.

    The third tab allows you to enter comments on the shown topic and is bilingual. Personal anecdotes, supplements and other information questions will take place here.

    The "Story" tab shows the explanatory texts. They are most often taken from Wikipedia, a site where we participate regularly.

    The "Data" tab is reserved for list of features and specifications.

    Right menus

    On a smartphone, the lack of space is growing and this menu is moved to the bottom of the page to give priority to videos and pictures.

    The top right icons are links to videos posted by third parties (on their own responsabilities) or by ourselves. The link below these icons will take you to the channel of the one who posted the video. Feel free to suggest other videos if you think they are of some interest (Use the BLOG button or the "Contact" link).