Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 22

Thread: Pyestock Cell 3 West 2007

  1. #1
    Join Date
    September 2005
    Location
    Cambridge
    Posts
    314
    Thanked
    153

    Default Pyestock Cell 3 West 2007


    My work on the Pyestock website slowly continues. The most recently completed is Cell 3 West.

    Note that that I explored the site in 2006 and 2007. It has unfortunately changed; but, then again, I expected it to be fully demolished by now.

    So here's some choice shots taken of the Cell 3 West in relatively better days.


    Cell 3 West (649)

    Built: 1969
    Decommissioned: 2002

    Cell 3 West was the last altitude test cell to be built at Pyestock in 1969. Its construction was prompted by the need to test a new breed of large civil turbofan engines, such as the Rolls-Royce RB207 and RB211, over their full flight envelopes.

    The existing infrastructure for the new testing facility was mostly in place and so the new cell was plumbed into the existing suction manifold at the end of Cell 3. New exhauster capacity was also required as the demands of these engines (with their triple-shaft designs and high-bypass ratios) absorbed all the existing exhauster resources at Pyestock. So Number 10 Exhauster was built to the north of the cell and a cold air plant was constructed to its west. Even though it was mainly a capability enhancement to Cell 3, Cell 3 West was a test cell in its own right.


    The engine chamber was constructed above ground and had the largest diameter of any of the altitude test cells at Pyestock. It had a 25ft. diameter and was 40ft. long (with a 30ft. long working section). The cell was built at ground level and so the exhaust manifold passed through two cascaded right angle bends in order to accommodate the height difference to the entrenched suction manifold. The exhaust manifold was fitted with bulkhead doors which were shut during non-testing periods. The atmospheric to exhaust manifold pressure difference helped to keep the pressure tight seal.

    The front dome of the cell and inlet ducting could be removed to expose the inside compartment. This allowed easy access to the engine at the time of installation. The inlet ducting was 77 ft. long of which 43. ft was external to the cell.

    Initially the engines under test were directly coupled to the intake so all tests were of the connected type.


    The engine chamber could be run with or without cold air. The air could be drawn direct from atmosphere through an intake silencer or through the newly build cold air plant. This plant used 30% aqueous ammonia solution pre-cooled to -50C in a cold store which could supply enough cold air to permit the RB211 engine to run for approximately 30 minutes at full flow. The air temperature could be reduced to -40C in the cell which was equivalent to a civil aircraft cruising at an altitude of 40,000 feet. Either water (wet icing) or ice particles (dry icing) or a combination of both could be injected into the cooled inlet air stream.

    It was possible to measure engine thrust as the engine mounting included special features to permit the movements required for thrust and drag measurements. The engine was clamped to a support frame which was itself supported from flexible rods attached to the roof of the cell. The mounting permitted small deflections which were used to measure the thrust. The engine installation also included an automatic connect bulkhead featuring a large proportion of engine instrumentation and other services which were identical to the sea-level installations at Rolls-Royce, so the speedy interchange of engines was possible.


    Both steady-state and transient instrumentation were available. Test information was fed through to the SDS 9300 computer in the Computer Building with the PDP7 data acquisition unit in support. 300 pressures and 200 temperature points for steady state conditions and 30 channels of UV and 28 channels of magnetic tape of transient conditions were available. (The later installation of the ICL 1904S computer allowed 700 pressures and 800 temperature channels to be used along with 36 channels of UV and 32 channels of magnetic tape). A control room adjacent to the cell was used to operate the test plant, the engine and its associated auxiliaries.



    The fuel system was tapped off Cell 3 and was of similar design. The spray cooling water system operated on a circulatory basis. Two banks of nozzles were provided and each was fitted with on-off and flow-control valves. The quantity of water injected was carefully controlled to ensure that just enough was sprayed into the gas stream to maintain an acceptable gas temperature at inlet to the exhausters.


    During its lifetime, the cell was readily adapted for new tests under differing conditions. It was converted to allow free jet testing so that full-flow cold air tests could be undertaken at flight operating altitudes. The cold-air plant was expanded with extra tanks to further decrease the temperature range or allow tests to run for longer. With these modifications, the simulated wet-icing testing of full-scale helicopter rotor blades, as well as the Rolls-Royce Olympus 593 with Concorde intake, could be tested under simulated wet icing conditions.

    In its final years, the cell was used for icing certification tests to CAA and FAA regulations. These could be conducted by the installation of a spray rake that provided an icing cloud of controlled Light Water Concentration and droplet size. In addition to full engines, air frame components could be tested and helicopter de-icing carried out. The cell was also being considered for sea-level testing but its unknown whether this modification was ever carried out.

    Cell 3 West was closed in 2002 when the rest of its support network (the Air House and Cell 3) were also closed.

    Some choice shots and some not so obvious pictures of Cell 3 West:


    Looking west towards the vertical exhaust duct which rises up to connect to Cell 3 West


    Taking the stairs parallel to the vertical exhaust duct


    Eastern view of vertical exhaust duct


    Elevated view west towards the Air Intake Cooler


    Detail of the crane controller booth by the northern wall of the cell


    Interior of the crane controller booth looking east


    General elevated view of Cell 3 West looking east along its southern flank


    Looking east towards the front dome of Cell 3 West from the Air Intake Cooler


    Looking south-east across the Engine Chamber of Cell 3 West


    Looking north-east across the Engine Chamber from the southern walkway


    General view north-west across the Engine Chamber


    View west from halfway along the exhaust duct


    Grill at the back of the interior of the exhaust duct, looking east


    General view of Cell 3 West from the north-west


    Wiring in the Instrument Kiosk looking north


    View south-east across the Cell 3 West control room

    All the best,
    Simon

  2. Thanks given by: Andymacg, darbians, ducatidevil1, flyboys90, Jondoe_264, krela, Lucky Pants, Mars Lander, night crawler, Ninja Kitten, perjury saint, peroxidetim, prettyvacant71, PROJ3CTM4YH3M, Ramsgatonian, UE-OMJ, urban-miff, Woofem
  3.  
     
  4. #2
    Join Date
    April 2007
    Location
    Cambridge
    Age
    37
    Posts
    7,451
    Thanked
    8026

    Default


    Reports don't really get more comprehensive than this! Nice pics too, cheers for sharing sir!
    www.urbanXphotography.co.uk
    "We're not giving you a quote for your stupid forum signature"
    - Essex Police

  5. Thanks given by: Simon
  6. #3
    Join Date
    May 2011
    Location
    The Centre of England or near enough
    Posts
    7,219
    Thanked
    4647

    Default


    Great information & photos thanks for sharing.

  7. Thanks given by: Simon
  8. #4
    Join Date
    September 2011
    Location
    Near Manchester
    Posts
    1,271
    Thanked
    2206

    Default


    Special detailed report fantastic,thanks for sharing, the control panels images are my faves , look FAB!
    My Flickr : alternativedayout@yahoo.com

    You think Adventure is dangerous? Try routine, it's lethal ! :)

  9. #5
    Join Date
    January 2011
    Location
    Kent (Ramsgate)
    Posts
    500
    Thanked
    487

    Default


    Very detailed, you are obviously full of knowledge when it comes to Pyestock!
    "The last Beemer out of Saigon. I'm at the mercy of the Vietnamese peasants. Please don't put me in a bamboo cage."

    ramsgatonian@hotmail.com

  10. #6
    Join Date
    December 2012
    Location
    NW London
    Posts
    626
    Thanked
    1084

    Default


    Seems like you certainly know your stuff! I'm trying to imagine sitting behind one of those huge control panels.
    Windows need cleaning in that crane though :)

  11. #7
    Join Date
    August 2012
    Location
    Newport, South Wales
    Posts
    31
    Thanked
    16

    Default


    Nice report dude, Just one point, I felt it wasn't detailed enough... ;)

  12. #8
    Join Date
    October 2011
    Location
    Shropshire
    Posts
    573
    Thanked
    884

    Default


    Stunning shots ,what a place !! thanks for sharing :).
    Looking beyond the pictures. :p


  13. #9
    Join Date
    August 2008
    Location
    Yorkshire.
    Posts
    374
    Thanked
    845

    Default


    Nice work and thanks for all the info! I like the one looking into the front of the dome! awesome!

  14. #10
    Join Date
    April 2012
    Location
    worcester
    Posts
    1,144
    Thanked
    2592

    Default


    Good stuff! Gotta see this place soon me thinks...
    YOU AINT SEEN ME... RIGHT!!

Page 1 of 3 1 2 3 LastLast

Similar Threads

  1. Pyestock Air House 2007
    By Simon in forum Industrial Sites
    Replies: 11
    Last Post: 14th Aug 12, 11:08
  2. Pyestock Cell 3 2006-7
    By Simon in forum Industrial Sites
    Replies: 8
    Last Post: 14th Aug 12, 10:06
  3. West Park - Return Visit to Padded Cell March 2009
    By vmlopes in forum Hospitals & Asylums
    Replies: 11
    Last Post: 13th Mar 09, 18:33
  4. Pyestock: March 2007
    By Simon in forum Industrial Sites
    Replies: 9
    Last Post: 23rd Sep 08, 17:38
  5. NGTE Pyestock, Fleet. January 2007
    By RA181 in forum Industrial Sites
    Replies: 10
    Last Post: 27th May 08, 21:06

About us
DerelictPlaces is a forum for people with an interest in the history and documentation of disused, derelict and abandoned buildings to come together and share their experiences, photography and historical findings. Our military, industrial and historical heritage is fast disappearing under the pressure of regeneration, the need for new housing, and often through simple neglect; Our aim is to document these places before they disappear entirely.
Follow us