T53A All-metal two-seater; prototype only, flown March 1967
T53B Flown 28.3.68; 17 built (one modified to partial T53C standard before completion)
Plus four not completed - destroyed by fire at Kirbymoorside 18.11.68
T53C T53B with improvements; none built as such, but one T53B modified to partial T53C spec before completion, and two modified after completion.
T53D Powered trainer; not built
T53E Powered trainer; presumed not completed
Yorkshire Sailplanes YS53 Four aircraft (only two new-build)
(1) Modified from interim T53C
(2) First production YS53 (used some parts from a wrecked T53B), flown 21.7.73
(3) Partially built by Yorkshire Sailplanes; completed by Geoff Bailey-Woods
(4) Modified from T53B
| Ser No. | Reg 1 | Reg 2 | Reg 3 / Remarks | |
|---|---|---|---|---|
| T53A | 1560 | - | First flown 9.3.67; scrapped 9.69 | |
| T53B | 1574 | XV951 | W/o 11.4.72; parts to YS-53 s/n 02 | |
| T53B | 1575 | ZK-GFW | Cancelled | |
| T53B | 1576 | (VH-GUC) | Not completed; destroyed by fire, Kirbymoorside 18.11.68 | |
| T53B | 1577 | N1578 | ||
| T53B | 1578 | - | Not completed; destroyed by fire, Kirbymoorside 18.11.68 | |
| T53B | 1600 | N2477 | Cancelled | |
| T53B | 1601 | N253X | ||
| T53B | 1602 | - | Not completed; destroyed by fire, Kirbymoorside 18.11.68 | |
| T53B | 1609 | - | Not completed; destroyed by fire, Kirbymoorside 18.11.68 | |
| T53B | 1653 | N1663 | ||
| T53B | 1654 | - | BGA 1898 | To YS-53; wrecked .92/93 |
| T53B | 1686 | VH-GUB | Australian Gliding Museum | |
| T53B | 1687 | ZK-GFQ | ||
| T53B | 1688 | N1664 | ||
| T53B | 1700 | N11CC | Destroyed | |
| T53B | 1702 | HB-945 | Cancelled | |
| T53B | 1703 | N8317 | For refurbishment at Wichita, Ks | |
| T53B | 1717 | 4X-GEG | Heavy landing; stored | |
| T53B | 1718 | G.1 | BGA 2132 | G-DDHE, Aviation Preservation Society of Scotland, Portmoak |
| T53B | 1719 | BGA 1512 | Crashed on approach, Dunkeswell 18.9.83 | |
| T53B/C | 1721 | - | BGA 1787 | To YS53; heavy landing, Jurby 1992; stored |
| YS53 | 02 | BGA 1811 | G-DCUD | Stored at Sackville Farm |
| YS53 | 03 | BGA 1897 | G-DCXV | Gliding Heritage Centre, Lasham |
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