{{Short description|British two-axle double deck trolleybus chassis}} {{Use dmy dates|date=April 2022}} {{Infobox bus |name = AEC 661T |image = 1934 AEC 661T RV4649.jpg |imagesize = |caption = Preserved AEC661T trolleybus |manufacturer = AEC |production = 1931 - 1942 |assembly = |capacity = |length = |width = |height = |floortype = |doors = 1 |weight = |chassis = |related = AEC Regent<br />AEC 662T |engine = |powerout = |transmission = |options = |predecessor = |successor = }}
The '''AEC 661T''' was a two-axle double deck trolleybus chassis manufactured by AEC between 1931 and 1942.<ref name=":0">{{cite book |last=Lockwood |first=Stephen |title=A-Z of British Trolleybuses |publisher=Crowood Press |year=2017 |isbn=9781785002885 |location=Marlborough |pages=29}}</ref> Based on the AEC Regent bus chassis, over 380 were built for United Kingdom and overseas operators.<ref name=":1">{{Cite web |title=AEC 661T |url=https://www.buslistsontheweb.co.uk/index.htm?https://www.buslistsontheweb.co.uk/list.asp?listname=1563&Type=Chassis |access-date=4 October 2025 |website=Bus Lists on the Web}}</ref> Bodywork on early models was similar to that on the AEC Regent motor bus, with a half cab front and dummy radiator, but a full-fronted version was used from 1934.<ref>{{Cite book |last=Ward |first=Rod |title=AEC Album Part One: to 1945 |publisher=Zeteo Publishing |year=2007 |pages=21 |oclc=1014414977}}</ref>
The first four vehicles were supplied to Southend Corporation.,<ref>{{Cite book |last=Townsin |first=Alan |title=Blue Triangle - AEC Buses |publisher=Venture Publications |year=1994 |isbn=189843204X |pages=85}}</ref> with orders following to many other municipal trolleybus operators.<ref name=":0" /><ref name=":1" />
Several AEC 661Ts were later preserved, including examples formerly used in Portsmouth<ref>{{Cite web |title=City of Portsmouth Museums and Records Service vehicles |url=http://www.cpptd.co.uk/vehicles-portsmouthmusuems.htm |access-date=4 October 2025 |website=City of Portsmouth Preserved Transport Depot}}</ref> Cleethorpes,<ref>{{Cite web |title=Cleethorpes 54 |url=https://sandtoft.org/wp/wp-content/uploads/2021/08/Cleethorpes_54.pdf |access-date=4 October 2025 |website=The Trolleybus Museum at Sandtoft}}</ref> and Reading,<ref>{{Cite web |title=Reading 113 |url=https://sandtoft.org/wp/wp-content/uploads/2021/08/Reading_113.pdf |access-date=4 October 2025 |website=The Trolleybus Museum at Sandtoft}}</ref> with the latter two being located at the Trolleybus Museum at Sandtoft.
==References== {{Reflist}} {{AEC range|state=collaped}}
661 Category:Trolleybuses Category:Double-decker buses Category:Vehicles introduced in 1931 Category:Vehicles discontinued in 1942
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