| 03/01/1970 | XR997 | 25 | Gnat T1 | 4 FTS | Crashed at Ty Mawr shortly after take off from Valley, Anglesey killing both crew |
| 14/01/1970 | XT166 | Y | Soux AH1 | 3 Command Brigade/4 Wing | The main rotors struck trees while landing on a small landing pad on Mount Ophir, Malaysia. The aircraft slid 130 feet down the side of the mountain but the pilot escaped with minor injuries |
| 29/01/1970 | XV167 | H-236 | Buccaneer S2 | 801 NAS | At the final stages of launch from HMS Hermes the hold back broke thus releasing the aircraft before the catapult fired resulting in it accelerating under its own power towards the bow of the ship. The observer ejected while still on the deck and the pilot followed immediately afterwards as the nose wheel went over the side of the ship which was operating 45nm south east of Gibraltar. The same pilot had previously ejected from Buccaneer XV158 on 20th May 1968 |
| 03/02/1970 | XA165 | Sea Vampire T22 | Brawdy Station Flight | Declared a write off after distortion of the balsa structure was found. Allocated to 8148M with 1414 ATC Crowborough | |
| 09/02/1970 | XS171 | 41 | Hiller HT2 | 702 NAS | Struck the ground during sloping ground landing practice at Culdrose, Cornwall and rolled onto its starboard side. To Fleetlands and declared a write off |
| 11/02/1970 | XP103 | 511 | Wessex HAS3 | 706 NAS | Ditched into Falmouth Bay, Cornwall six miles south of Dodman Point after a fire warning while on a SAR exercise. It rolled over and sank but the crew were rescued safely |
| 05/03/1970 | XS918 | B | Lightning F6 | 11 Sqn | Crashed into the North Sea off Leuchars, Fife near the Isle of May after the pilot ejected following a fire. He died from exposure after becoming detached from his survival suit |
| 07/03/1970 | WE991 | Prefect TX1 | 2 GC | Written off in a heavy landing at Hemswell, Lincolnshire | |
| 16/03/1970 | XP576 | 42 | Jet Provost T4 | 3 FTS | Crashed near Leeming, North Yorkshire after engine failure while in the circuit to land. The pilot ejected safely |
| 17/03/1970 | XN556 | 23 | Jet Provost T3 | 1 FTS | Stalled and crashed while on approach to Linton-on-Ouse, Yorkshire |
| 19/03/1970 | XE596 | 13 | Hunter FR10 | 229 OCU/79 Sqn | Crashed at Buren, near Paderborn, West Germany after engine failure |
| 24/03/1970 | XT816 | Sioux AH1 | 2 Wing | The pilot became disorientated shortly after a night take off from Netheravon, Wiltshire due to reduced visibility and fog build up. He descended and landed heavily while moving backwards | |
| 22/04/1970 | XV316 | F | Sioux HT2 | CFS | Collided and crashed at Hinstock, Shropshire during a practice display by the Tomahawk Display Team. One pilot was seriously injured, the other was slightly injured |
| 22/04/1970 | XV310 | H | Sioux HT2 | CFS | |
| 30/04/1970 | XP566 | 81 | Jet Porovost T4 | RAFC | Crashed at Sleaford during a night approach to Cranwell, Lincolnshire killing the pilot |
| 05/1970 | XN702 | H-254 | Sea Vixen FAW2 | 893 NAS | Badly damaged during a deck landing accident on board HMS Hermes. Off loaded and transferred by lighter to Limassol Harbour, Cyprus then towed to Akrotiri during August where it was later broken up |
| 01/05/1970 | WJ632 | Canberra TT18 | A&AEE | The pilot lost control of the aircraft at 4,000ft during an asymmetric assessment exercise. He used the incorrect recovery technique and it spun into Lyme Bay 3½ miles SE of Bridport, Dorset killing two of the three crew | |
| 03/05/1970 | XV566 | R-010 | Phantom FG1 | 892 NAS | While on loan to the A&AEE all radio and radar contact was lost. It had crashed into Lyme Bay, Dorset killing both crew |
| 06/05/1970 | XR433 | R-044 | Gannet AEW3 | 849 NAS | Crashed on a night approach to Yeovilton, Somerset and burnt out killing both crew |
| 07/05/1970 | XP742 | G | Lightning F3 | 111 Sqn | Crashed into the North Sea off Happisburgh, Norfolk following a reheat fire. The pilot ejected safely |
| 13/05/1970 | XT621 | Scout AH1 | 665 Sqn | The pilot became disorientated after the aircraft was engulfed in a sand cloud when landing at night in West Malaysia. It moved to the right, crashed onto its side and turned over injuring one of the three on board | |
| 26/05/1970 | XR767 | E | Lightning F6 | 74 Sqn | Flew into the Malacca Strait off Singapore at night killing the pilot |
| 26/05/1970 | XA304 | Cadet TX3 | 1 GC | Written off in a flying accident at Swanton Morley, Norfolk | |
| 27/05/1970 | XR526 | AH | Wessex HC2 | 72 Sqn | Broke its back in a heavy landing at Odiham, Hants. To 8147M at Odiham |
| 04/06/1970 | XP441 | Argosy C1 | 114/267 Sqns | Declared a write off after undershooting the runway at Benson, Oxfordshire | |
| 07/06/1970 | XP355 | A | Whirlwind HAR10 | CFS | Written off at Ternhill, Shropshire |
| 17/06/1970 | WD355 | Chipmunk T10 | 2 FTS | Crashed at Rufforth, Yorkshire, during a low level roll. Allocated to 8099M with Yorkshire UAS | |
| 22/06/1970 | XD183 | F | Whirlwind HAR10 | 110 Sqn | Crash-landed at Dungun, Malaysia after engine failure. To the Malaysian AF for ground instruction |
| 22/06/1970 | XN469 | 25 | Jet Provost T3 | 1 FTS | Written off in a forced landing on the disused airfield at East Moor, Yorkshire after engine failure |
| 26/06/1970 | WZ861 | Chipmunk T10 | Glasgow UAS | Force-landed and struck a wall three miles SE of Nairn, NE Scotland. Allocated to 8100M with Glasgow UAS | |
| 11/07/1970 | XW264 | Harrier T2 | HSA | Made a forced landing at Boscombe Down, Wiltshire after engine failure due to dirt in the fuel system. The undercarriage collapsed on touchdown and the aircraft skidded on to the runway and burst into flames. The pilot escaped with minor injuries. Remains to Dunsfold and later to Farnborough dump | |
| 13/07/1970 | WK575 | Chipmunk T10 | Wyton Station Flt | Stalled and crashed at Laxfield near Ipswich, Suffolk after the pilot attempted to loop from a very low altitude. The pilot was killed and the passenger was seriously injured. To Bury St. Edmunds ATC | |
| 27/07/1970 | WH641 | S | Canberra B2 | 85 Sqn | Spun into the ground during a practice asymmetric approach to Wattisham, Suffolk killing the two crew |
| 27/07/1970 | XS930 | F | Lightning F6 | 74 Sqn | It was intended that the aircraft would take off from Tengah, Singapore and execute a maximum rate climb for the benefit of a photographer. The photographer, however was not positioned far enough along the runway for the Lightning to have attained sufficient speed. The pilot pulled up next to the photographer nonetheless but the aircraft stalled. The pilot ejected at too low an altitude and was killed. Two civilians were killed when the aircraft crashed |
| 03/08/975 | XT828 | Sioux AH1 | 655 Sqn | The tail struck the ground on landing at Korvach, West Germany. Control was lost causing the main rotors to strike the ground. As the crew evacuated the aircraft it caught fire and burnt out | |
| 12/08/1970 | XT789 | 473 | Wasp HAS1 | 829 NAS HMS Dido Flt | During a night ground controlled approach to the ship it flew into rising ground on the Mull of Kintyre, Western Scotland. The wreckage was found by an RAF Shackleton from Ballykelly. One of the two crew were killed and the other injured. Recovered by Sea King XV656 and later transferred to the AIU at Lee-on-Solent and to ground instruction with the AES there |
| 12/08/1970 | XS893 | G | Lightning F6 | 74 Sqn | Abandoned by the pilot and crashed into the sea off Tengah, Singapore after the undercarriage would not lower |
| 13/08/1970 | WT907 | Cadet TX3 | 611 GS | Crashed at Swanton Morley, Norfolk | |
| 26/08/1970 | XN686 | Sea Vixen FAW2 | A&AEE | Entered a spin after control was lost at 5,000ft during low speed engine handling tests. Both crew ejected and it crashed into open ground south of Sheperton Mallet, Somerset | |
| 31/08/1970 | XT282 | E-102 | Buccaneer S2 | 800 NAS | Crashed into the Moray Firth, nineteen miles off Lossiemouth, Morayshire after the crew ejected following hydraulic failure |
| 04/09/1970 | XT502 | Sioux AH1 | 17th/21st Lancers | Crashed at Aldergrove, Northern Ireland after inadvertent control movement while looking for a torch amongst the control pedals. The pilot was uninjured | |
| 04/09/1970 | WF370 | Varsity T1 | 6 FTS | All damaged beyond repair in a hangar fire at Finningley, Yorkshire | |
| 04/09/1970 | WF385 | H | Varsity T1 | 6 FTS | |
| 04/09/1970 | WF423 | F | Varsity T1 | 6 FTS | |
| 08/09/1970 | XS894 | F | Lightning F6 | 5 Sqn | Ditched successfully into the North Sea off Flamborough Head, Yorks. Despite an extensive search the USAF exchange pilot was not found |
| 15/09/1970 | XJ561 | VL-703 | Sea Vixen FAW2 | 766 NAS | Written off in a belly landing on a foam carpet at Yeovilton, Somerset. Allocated to the fire dump at Yeovilton |
| 16/09/1970 | XP806 | Beaver AL1 | 13 Flt | Crashed during take off from Sharjah, Oman after the tail hit bushes. Parts were used with XP815 (crashed 09/09/1962) in making a composite airframe, marked as XP822. To Arborfield and later to Middle Wallop gate | |
| 17/09/1970 | XW297 | 59 | Jet Provost T5 | 1 FTS | Crashed at Kipling Coates, Yorks. The pilot ejected safely |
| 19/09/1970 | XM990 | Lightning T4 | 226 OCU | Suffered a control failure and crashed into woods near Plumstead, Norfolk during The Battle of Britain day at Coltishall. The crew ejected safely | |
| 22/09/1970 | WT721 | LM-694 | Hunter GA11 | 764 NAS | Crashed into a hillside near Blair Atholl, Perthshire killing the pilot |
| 06/10/1970 | XV796 | J | Harrier GR1 | 1 Sqn | Crashed near Ouston, Northumberland after the pilot ejected following a flame out |
| 06/10/1970 | XT215 | Sioux AH1 | 652 Sqn | Although avoiding action was taken, the aircraft struck power cables while flying in a valley along the River Diemel, West Germany. The tail became entangled in the broken cables but the pilot was able to escape uninjured | |
| 16/10/1970 | WG460 | Chipmunk T10 | Aberdeen UAS | Hit a tree during a forced landing after the engine failed to pick up during an overshoot at Dyce Airport, Aberdeen. To 8116M | |
| 17/10/1970 | XL109 | F | Whirlwind HAR10 | 28 Sqn | Ditched near Sai Kong, Hong Kong after engine failure |
| 27/10/1970 | XN199 | Cadet TX3 | 661 GS | Spun into the ground near Kirknewton, Midlothian | |
| 12/11/1970 | XT679 | BU | Wessex HC2 | HOCF | Collided and crashed at Odiham, Hampshire. The three crew of XR510 and two on XT679 were all killed. The pilot of XT679 had previously safely landed Sycamore XL822 on 06/05/1963 after partial engine failure |
| 12/11/1970 | XR510 | BZ | Wessex HC2 | HOCF | |
| 13/11/1970 | XP955 | E-121 | Sea Vixen FAW2 | 899 NAS | Crashed into the Moray Firth, Eastern Scotland while operating off HMS Eagle |
| 13/11/1970 | XR994 | Gnat T1 | Red Arrows | Suffered engine failure and crashed while on approach to Kemble, Gloucestershire. The pilot ejected safely | |
| 18/11/1970 | XJ475 | Sea Vixen FAW1 | A&AEE | The port wing unfolded while parked on the ramp at Boscombe Down, Wiltshire causing considerable damage. It was not repaired and was broken up for spares | |
| 20/11/1970 | XL112 | Whirlwind HAR10 | 202 Sqn | Exploded in mid-air following loss of control in cloud. It crashed at Patrick Brompton, North Yorkshire killing four on board | |
| 21/11/1970 | XM834 | CU-570 | Wessex HAS3 | 706 NAS | During a tethered engine run at Culdrose, Cornwall the main rotor scissor head link failed. This caused the helicopter to oscillate badly causing the undercarriage to collapse. The pilot was knocked unconscious for approximately 4 minutes but, when he came round, he shut the engines down which prevented the flailing blades from striking the ground. Damage was deemed to be beyond economical repair |
| 27/11/1970 | XT544 | Sioux AH1 | 15/19th Hussars | The pilot overpitched while in a high hover at Collingbourne Kingston, Wiltshire. During the resultant heavy landing the aircraft disintegrated and caught fire | |
| 01/12/1970 | XN951 | LM-633 | Buccaneer S1 | 736 NAS | Crashed at Lossiemouth, Morayshire |
| 07/12/1970 | XT126 | Sioux AH1 | 658 Sqn | The tail rotor struck the ground during autorotation practice at Sharjah, Oman causing severe damage. It became airborne again, yawed to the left and crashed. Both crew escaped safely. It was rebuilt in 1972 for service with the Royal Marines | |
| 08/12/1970 | XN968 | LM-634 | Bucaneer S1 | 736 NAS | Crashed into woods five miles SSW of Lossiemouth, Morayshire while on approach to land |
| 15/12/1970 | XM267 | E | Canberra B(I)8 | 3 Sqn | The aircraft suffered port engine failure half a mile from touchdown at Akrotiri, Cyprus. The pilot attempted an overshoot but the starboard engine spooled up faster than he could get enough rudder on to counter the yaw and roll. The port wing struck the ground and it cart wheeled then blew up. All three on board were killed |
