Project Emily

Note the ground off "OS" markings

Project Emily was the deployment of American-built PGM-17 Thor intermediate-range ballistic missiles in the United Kingdom between 1959 and 1963 , . As part of this, the MOD installed around 40 Hotine pillars around the missile bases. Standard flush brackets were used, but either the number or the "OS" were often ground off, as they are not part of the OS network. Fewer than a quarter of the original pillars still exist.

There are many other hotine pillars in existence that were erected either by the OS or with their blessing. Two such are located within 150m of each other, now within the grounds of Charente Hall, Berkshire: Tory Hall Farm (FB 10678) and Winkfield (FB 10679). The FB numbers date them to the 1960's although they may have been installed later if the flush brackets were drawn from OS stores. They appear to have been incorporated into secondary block TQ08, but are clearly additions as TQ08 was surveyed in 1948. They do not appear to have been levelled. Early logs suggest "related to a Minitrack Satellite Tracking Station, part of NASA's STADAN [Spacecraft Tracking and Data Acquisition Network] network", which is most plausible. These pillars then are in a similar category to the Great Glen and Emily pillars, except that they qualify as OSGB36 pillars having been designated as such within Block TQ08. Order unknown but possibly surveyed to Fourth Order standards.

Original OS archive research conducted by Rod Sladen, further information by Graeme Paterson.

Project Emily Trig Stations

T:UK	Grid Ref	FB	Station name	condition	notes
tp7843	TF 14291 71455	Unknown	Bardney East	Destroyed
tp7541	TF 13923 71573	S98??	Bardney West	Moved
tp7844	SE 71716 35110	Unknown	Breighton North	Destroyed
tp7545	SE 71446 34801	Unknown	Breighton South	Destroyed
tp7846	TA 08742 02185	Unknown	Caistor North	Destroyed
tp7542	TA 08657 01888	Unknown	Caistor South	Destroyed
tp7418	TA 12678 63361	S9877	Carnaby North	Destroyed
tp7828	TA 12425 62952	S9873	Carnaby South	Destroyed
tp7847	TA 13604 48410	Unknown	Catfoss North	Destroyed
tp7484	TA 13583 48013	Unknown	Catfoss South	Destroyed
tp7546	TF 00699 60555	S9875	Coleby Grange East	Possibly missing
tp7848	TF 00375 60471	Unknown	Coleby Grange West	Destroyed
tp7540	SE 99241 57286	S9865	Driffield East	Good	Found 18th Oct 2009
tp7473	SE 98803 57139	Unknown	Driffield West	Possibly missing	Last seen 24th May 2016
tp7554	TL 71465 89511	None	Feltwell North	Good	Found 31st Oct 2009
tp7849	TL 71549 89091	S9584	Feltwell South	Possibly missing
tp7565	TF 05317 30114	Unknown	Folkingham East	Destroyed
tp7850	TF 05011 30099	Unknown	Folkingham West	Destroyed
tp7487	SE 74218 54124	S9874	Full Sutton North	Destroyed
tp7842	SE 73980 53740	S9876	Full Sutton South	Destroyed
tp7692	SP 77299 77973	S9864	Harrington North	Moved	Found 3rd May 2011. FB is face down.
tp7657	SP 77414 77631	Unknown	Harrington South	Moved	FB missing. Found 6th May 2011
tp7543	SK 94243 91176	Unknown	Hemswell North	Destroyed
tp7851	SK 94239 90841	Unknown	Hemswell South	Destroyed
tp7852	TF 19746 87450	Unknown	Ludford Magna North	Destroyed
tp7544	TF 20021 87144	Unknown	Ludford Magna South	Destroyed
tp7845	SK 74990 15903	S9538	Melton Mowbray North	Destroyed
tp7557	SK 74865 15480	S9878	Melton Mowbray South	Destroyed
tp7853	TL 44629 80114	Unknown	Mepal North	Destroyed
tp7553	TL 44501 79830	10123	Mepal South	Good	Found 31st Oct 2009
tp7558	SK 94836 04746	S9536	North Luffenham South	Moved	Found 1st Nov 2009
tp7559	SK 95245 04796	S9539	North Luffenham North	Damaged	Found 1st Nov 2009
tp7564	TF 84961 07316	Unknown	North Pickenham North	Destroyed
tp7854	TF 84947 06845	Unknown	North Pickenham South	Destroyed
tp7855	TL 09657 86280	Unknown	Polebrook East	Destroyed
tp7555	TL 09326 86398	Unknown	Polebrook West	Destroyed
tp7562	TL 99217 72839	S9586	Shepherds Grove North	Destroyed
tp7856	TL 99611 72398	S9587	Shepherds Grove South	Destroyed
tp7857	TL 75824 71616	Unknown	Tuddenham North	Destroyed
tp7563	TL 75803 71291	Unknown	Tuddenham South	Destroyed