June 22nd, 2017

Engineering News 22nd June 2017

The Trusts’ Chief Mechanical Engineer Elliot Powick has recenltly identified the correct design of motion bracket for GER 789 from four posible options. The resultant CAD model has been used by Premier Patterns and Castings Ltd to manufacture a polymer pattern that will shortly be sent to a foundry in readiness for casting of the motion bracket.

Motion bracket pattern.

 

Motion bracket pattern.

Motion bracket pattern.

Motion bracket pattern.


June 12th, 2017

Engineering News 12th June 2017

Stop Press: Motion bracket pattern ordered; Stephenson’s motion CAD model completed. More details to follow soon.

June 2017 Engineering Report

Following a meeting with Bob Meanley at Tyseley on May 19th it has become apparent that, with Tyseley Loco Works (TLW) current work load, the current plan for frame erection would be difficult to implement.

The original plan was for TLW to procure all the peripheral components things like gussets, rivets, bolts etc and the F5 Trust were left to provide any outstanding castings (motion bracket etc). At the moment, what with TLW’s current work load the current schedule was not going to be achievable mainly down to other current TLW projects unexpectedly over-running (anyone that’s been involved with loco restoration will wholly understand) so it was decided that another proactive way to get the frames built was needed.

The plan now is a quick 1-2 week assembly turn around in which the F5 Trust with TLW’s assistance will procure everything required to put the frames together and will be project managed so that all the parts come together for their allotted time in TLW’s workshop.

This in turn means that all the additional parts will need to be acquired in readiness for this to begin. So that’s 184 rivets,  113 bolts, 129 nuts, 12 brackets, 1 extra machined casting, machined frames and buffer beams all to hit TLW’s workshops at the same point then 2 weeks later we should have a nice new set of erected frames.

Motion Bracket

Motion Bracket

Machined Motion Bracket

The last main casting required is the motion bracket. Now the Trust has ascertained which bracket it required we can now move forward and make the pattern, cast and machine. This is one of the last pieces needed and will be cast, machined and delivered just prior to the frame erection.

Modifications

The Trust is currently looking at alternative options to some of the cast brackets required for frame erection. With current welding techniques it should be possible to create the same parts using laser cut parts welded together to form a copy of the cast bracket at a considerable cost reduction compared to patterns, castings and machining. This process has been used before on other loco restorations so it should be relatively easy to do so. We’re currently in conversation with a few fabrication companies who can assist with these parts and possibly sponsorship of some if not all of the costs.

 

 


May 10th, 2017

Engineering News 10th May 2017

Wheel Sets

CAD design for the wheel sets is advanced and quotes have been sought for the following items.

Driving wheel pattern – £3,000

Driving wheel castings – £5,500 ea (£22k)

Leading and trailing wheel pattern – Already in existence

Leading and trailing wheel castings – £3k ea (£12k)

Trailing driving wheel axle blank – £3k

Machining for above – £1,500

Leading and trailing axle material – £1,200 ea (£2,400)

Machining for above – £1,300 ea (£2,600)

Material for crank axle journals – £3,000

 

Crank webs (machined) – £1,200  (£4,800)

Assembly of crank axle – £500 per press (8-opps – £4,000)

 Machined Castings To Date

Cylinder block…………..fully machined and in store.

Diamond stay……………fully machined and in store.

Four tank supports……fully machined and in store.

Chimney casting…………….in store.

Fabrications completed…….bunker and smoke box.

Frames

Frame plates and buffer beams are in store pending assembly. Associated CAD work completed and ready for CNC drilling of plate holes and can be viewed by clicking on this link  F5-0001-R3a

It is anticipated that Tyseley will be assembling the frames during the latter part of 2017.

Donations to assist with the above will be gratefully received via Just Giving or by clicking on ” How You Can Help.

Should you like to contribute to the funding of GER 789 please make cheques payable to The Holden F5 Steam Locomotive Trust and send to  For further information please click on “How You Can Help.

For all other matters including offers of commercial sponsorship please contact info@holdenf5.co.uk  or write to      The Holden F5 Steam Locomotive Trust, 49 Beech Avenue, Halstead, Essex, CO9 2TT.


April 24th, 2017

Engineering News 24th April 2017

With the correct design of motion bracket established and CAD modeled into the chassis, CME Elliot Powick continues to develop the Stephenson’s valve gear. Once completed, an animated sequence of the valve gear will be published on our news page.

CAD models of the wheel sets have been distributed with the first of several quotes expected to be received by Elliot Powick by the end of April 2017. A news update will be published soon.

 


March 4th, 2017

Engineering News March 2017

CME Elliot Powick of Stafford Road Design has finalised the CAD work necessary to enable GER 789’s frames to be erected. An annotated PDF of the frame assy can be downloaded by clicking on this link  F5-0001-R3a

Erection of the frames by Tyseley Steam Locomotive Works this year is dependent upon them being relocated due to a dearth of free space. To avoid any unnecessary delays preliminary discussions have commenced with the North Norfolk Railway (NNR.) Trustee Director Keith Ashford of the Midland and Great Northern Joint Railway Society  (M&GNJRS) has been assigned to the task of liaising with The Holden F5 Steam Locomotive Trust to explore the possibilities of continuing the build of GER 789 at Weybourne, NNR.

NNR’s Engineer Peter Phillips described the construction of GER 789 as “a prestigious project and a locomotive built for purpose and ideally suited to the needs of the North Norfolk Railway.”

The NNR’s recent purchase of Chatham Steam Services has given rise to a comprehensive engineering facility at Weybourne capable of further progressing the build of GER 789.

To explore options of assisting the build of GER 789 please click on “How you can Help” or “Consider a Legacy.”

 

 

 

 

 


January 9th, 2017

Meet the Team

The Holden F5 Steam Locomotive Trust

The Trust is looking for assistance at special events to help raise awareness and increase its membership.

2017 Events Calendar

 

 

 

 

April

22nd-23rd April: North Norfolk Railway Spring Steam Gala, Sheringham Station, NR26 8RA. Next to Sheringham National Rail station on the Bittern Line (Abellio Greater Anglia), served by trains from Norwich. There is a large pay & display car park at the station. http://www.nnrailway.co.uk/page.php?pid=97

29th April: 4th Southwold Railway Show and Model Railway Exhibition, St. Edmund’s Hall, Cumberland Road, Southwold, IP18 6JP. https://www.southwoldrailway.co.uk/

*30th April – 1st May: 50 Years of Didcot Railway Centre, Didcot, Oxfordshire, OX11 7NJ. Next to Didcot Parkway railway station on the Great Western main line, where parking is available. Access to the centre is the through the station’s ticket hall and subway. http://www.didcotrailwaycentre.org.uk

 

 


December 18th, 2016

Arrival of GER 789 in O gauge

 

We proudly announce the arrival of our fully working O gauge replica model of the full size GER 789.  This will be travelling to publicity events from 2017 and was produced by Roneo Models, 32 Roneo Corner, Hornchurch, RM12 4TN.

 


December 13th, 2016

Engineering News 13th December 2016

CAD plotting of  holes to frame plate

Stafford Road Design has further progressed CAD plotting of the frames. Discussions with TM Specialist Engineers of Kingswood, West Midlands have commenced regarding CNC drilling and milling.

A meeting with Bob Meanley, CME of Tyseley and Stafford Road Design is scheduled for early January 2017. Due to a dearth of workshop time, Tyseley is expected to undertake assembly of the frames during the latter part of 2017. Upon completion, the frames will be transported to another location to facilitate wheeling.   Further details will be published soon.


November 19th, 2016

Meet the Team

doncaster-railway-header_09

The Festival of British Railway Modelling 11-12 February 2017                              

Volunteers required to staff the Holden publicity stand at this exciting event.  A great opportunity to publicise our work and show off our O gauge display.

The Festival of British Railway Modelling returns to the Doncaster Racecourse on 11th-12th February 2017 for its 21st year.

Visitors can enjoy browsing over 30-handpicked layouts with a ‘Best of British’ theme and purchasing must-have items in a variety of major scales and gauges from over 80 quality traders.

There will be expert demonstrations popular with modellers, giving you an opportunity to learn about new techniques or ask any questions you might have.

Whether you’re looking to stock up on essentials for your hobby or enjoy a family day out, our Doncaster Show offers something for everyone.


November 16th, 2016

Wrenford Thatcher Limited Edition Print of GER 789 at Stratford Low Level

003A limited edition of signed, numbered and mounted prints of Wrenford Thatcher’s GER 789 at Stratford Low Level, East London are available. These high-quality prints  measuring 21 cm x 15cm  retail for £14.90 plus £2.50 postage. Please apply to “The Holden F5 Steam Locomotive Trust” 49 Beech Avenue, Halstead, Essex, CO9 2TT.  Cheques made payable to “The Holden F5 Steam Locomotive Trust.” For further information email  info@holdenf5.co.uk