AFEE reports held at the National Archives Kew in the AVIA Series 21 files

The following table lists AFEE reports held at the National Archives Kew in the AVIA Series 21 files.

A small sample of these reports (which are identified by maroon type) are available to view on ParaData.

National Archives File Reference

                 

             Report Title

             

Orig Ref

Report     Dates

AVIA 21/1 Paratroop dropping from Hotspur glider: investigation and tests TDS/G2 1941 AVIA 21/2 Development of tow cable for Hotspur glider TDS/G3 1941 AVIA 21/3 Suitability of Lysander aircraft as tug for Hotspur glider TDS/G4 1941 AVIA 21/4 Ground equipment for Hotspur glider TDS/G5 1941 AVIA 21/5 Hotspur glider: full load tests TDS/G6 1941 AVIA 21/6 Hengist glider to specification 25/40: tests TDS/G7 1941 AVIA 21/7 Nose towing of Hotspur II glider TDS/G9 1941 AVIA 21/8 Modified Hotspur II glider B.T.500 TDS/G10 1941 AVIA 21/9 Failure of Hotspur tow cables used by G.T.S. Thame TDS/G11 1941 AVIA 21/10 Hotspur tow cables by R. Malcolm Ltd. TDS/G12 1941 AVIA 21/11 Hotspur II Internal Temperatures TDS/G13 1941 AVIA 21/12 Essential modifications to Hotspur II glider for training and operational purposes TDS/G14 1941 AVIA 21/13 Hotspur II: preliminary notes on technique of making descents on tow TDS/G15 1941 AVIA 21/14 Hotspur II: external nose ballast weights TDS/G16 1941 AVIA 21/15 Hotspur II: forward extension of C.G. limits TDS/G17 1941 AVIA 21/16 Hotspur II: comparative trim and stick force tests for low-hook and nose-hook towing TDS/G18 1941 AVIA 21/17 Multiple towing: preliminary notes TDS/G19 1942 AVIA 21/18 Malcolm No. 4A quick release: tests TDS/G20 1942 AVIA 21/19 Suggested methods of blind-towing TDS/G21 1942 AVIA 21/20 Cobb-Slater variometer TDS/G22 1942 AVIA 21/21 Range calculator for Hotspur II glider TDS/G23 1942 AVIA 21/22 Present position of direct wire communication between tug and glider TDS/G24 1942 AVIA 21/23 Audax aircraft as Hotspur tug TDS/G25 1942 AVIA 21/24 Rotachute trials TDS/G26 1942 AVIA 21/25 Rotachute for Blitz Buggy TDS/G27 1942 AVIA 21/26 Hotspur II glider: handling and performance in free flight TDS/G28 Pts 1-2 1942-43 AVIA 21/27 Master II aircraft as Hotspur tug TDS/G29 1942 AVIA 21/28 Hotspur II glider: arrester gear TDS/G30 1942 AVIA 21/29 Hotspur II glider: ditching trials TDS/G31 1942 AVIA 21/30 Multiple glider towing TDS/G32 1942 AVIA 21/31 Hotspur III glider BV200: diving trials TDS/G33 1942 AVIA 21/32 Whitley V aircraft as tug for gliders TDS/G34 Pts 1-3 & 5 1942-43 AVIA 21/33 Hamilcar glider: data and tests TDS/G35 Pts 1-7 1942-46 AVIA 21/34 Horsa glider tests TDS/G36 Pts 1-5 1942-43 AVIA 21/35 Rope drying machine for glider tow-cables TDS/G37 1943 AVIA 21/36 Dropping of the Hadrian undercarriage by parachute TDS/G38 1943 AVIA 21/37 Hadrian I glider: handling and performance tests TDS/G39 Pts 1-2 1943-45 AVIA 21/38 Hengist glider: handling and performance tests TDS/G40 1943 AVIA 21/39 Horsa II glider: brief performance and handling tests TDS/G41 1945 AVIA 21/40 Hotspur I glider fitted with bellows flap; flight tests TDS/G42 1945 AVIA 21/41 D.I automatic pilot on the CG-13A glider: tests TDS/G43 1946 AVIA 21/42 Hamilcar X glider: tests TDS/G44 Pts 1-4 1945-47 AVIA 21/43 CG-13A glider: performance and brief handling trials TDS/G45 1946 AVIA 21/44 TX.3/43 glider: handling and performance tests TDS/G46 1946 AVIA 21/45 D.I automatic pilot fitted to a Horsa II glider TDS/G47 1946 AVIA 21/46 TX.8/45 glider: handling and performance tests TDS/G48 1947 AVIA 21/47 Dropping tests with folding trolley and mortar base plate TDS/P4 1941 AVIA 21/48 Note on drifting of collapsible trolley TDS/P5 1941 AVIA 21/49 Prototype Mk. I metal container for training TDS/P6 1941 AVIA 21/50 Irvin patent dual release parachute: tests TDS/P7 1941 AVIA 21/51 Parachute training under tropical conditions TDS/P8 1941 AVIA 21/52 Packing of `Liquitite' containers in A.F.E. Mk. I containers TDS/P9 1941 AVIA 21/53 Suitability of Hudson aircraft for parachuting TDS/P11 1941 AVIA 21/54 Service trials of approved type containers TDS/P12 1941 AVIA 21/55 Modification of Hudson aircraft for parachuting by hole technique TDS/P14 1941 AVIA 21/56 New method of de-planing paratroops TDS/P15 1941 AVIA 21/57 Whitley aircraft as paratroop carrier TDS/P16 1942 AVIA 21/58 Quick connector for parachute static line and strop TDS/P17 1942 AVIA 21/59 Loading of Wellington IA and IC aircraft as paratroop carriers TDS/P18 1942 AVIA 21/60 Parachuting descents made at A.F.E.E. from Nov. 1941 to Jan. 1942: statistics TDS/P21 1942 AVIA 21/61 `X' type Mk. II parachute: trials TDS/P22 1942 AVIA 21/62 Paratroop dummies: tests TDS/P23 1942 AVIA 21/63 New method of deplaning paratroops TDS/P24 1942 AVIA 21/64 Parachute synthetic trainer TDS/P25 1942 AVIA 21/65 Wellington IC aircraft for paratroop operations: trials TDS/P26 1942 AVIA 21/66 Abnormal development of Mk. I parachute TDS/P27 1942 AVIA 21/67 Floor covering for paratroop aircraft TDS/P29 1942 AVIA 21/68 Wellington IC aircraft for paratroop operations: trials TDS/P30 1942 AVIA 21/69 Inspection of the G.Q. quick release harness TDS/P33 1942 AVIA 21/70 Camouflet set 2¼ Mk.II: carriage in bomb racks for parachute dropping TDS/P34 1942 AVIA 21/71 Everest carriers: dropping tests from Douglas C.47 aircraft TDS/P35 1942 AVIA 21/72 Drop of folding bicycle by parachute from Douglas C.47 aircraft TDS/P36 1942 AVIA 21/73 British containers: carriage on American parapack racks on Douglas C.47 aircraft TDS/P37 1943 AVIA 21/74 Lifebuoy type flamethrowers: dropping tests from Douglas C.47 aircraft TDS/P38 1942 AVIA 21/75 Dropping tests of panniers from Douglas C.47 aircraft TDS/P39 1942 AVIA 21/76 External D-ring stowage on X type Mk. I parachute TDS/P40 1942 AVIA 21/77 Dual X type harness supplied by Irvin Air Chute Co TDS/P43 1942 AVIA 21/78 Live descents with X type Mk. I parachute fitted with long lift webs TDS/P44 1942 AVIA 21/79 Trials of Lancaster and Manchester for paratroop operations TDS/P45 Pts 1-2 1942 AVIA 21/80 Interior lighting of paratroop aircraft TDS/P46 1942 AVIA 21/81 Sleeping bags: dropping tests without parachute TDS/P47 1942 AVIA 21/82 D.K.W. motor cycle: dropping tests TDS/P50 1942 AVIA 21/83 Hudson aircraft paratroop installation: tests TDS/P20 Pt 1 1942 AVIA 21/84 Douglas C.47 aircraft: airborne equipment loading trials TDS/P41 1943 AVIA 21/85 Mk. I and Mk. III containers fitted with wheels: dropping and towing tests TDS/P42 1943 AVIA 21/86 Lancaster aircraft as troop transport: tests TDS/P48 Pt 1942 AVIA 21/87 B.S.A. folding bicycle: dropping tests from aircraft by parachute TDS/P48 1943 AVIA 21/88 Dropping tests of wicker panniers to land on their bases TDS/P51 1943 AVIA 21/89 Parachute harness and Mk. I and Mk. III container quick release fittings: tests under Arctic conditions TDS/P52 1943 AVIA 21/90 Mk. I C.L.E 28-ft. diameter parachute: high speed dropping tests TDS/P53 1943 AVIA 21/91 Dropping tests of panniers from Horsa aircraft TDS/P54 1943 AVIA 21/92 Dropping of solo motor cycle in containers TDS/P55 1943 AVIA 21/93 Wheeled container transporting equipment TDS/P56 1943 AVIA 21/94 Mk. II ambulance stretchers: dropping tests TDS/P57 1943 AVIA 21/95 Dropping of wicker panniers from aircraft TDS/P58 1943 AVIA 21/96 A.E.D. Mk. IV compressed paper container: tests TDS/P59 1943 AVIA 21/97 Dropping of 75mm American pack howitzer M.I TDS/P61 Pts 1-2 & 6 1943-45 AVIA 21/98 Quilter type parachute delay opening mechanism: tests TDS/P62 Pts 1-10 & 12 1943 AVIA 21/99 B.S.A. type of folding bicycle: tests TDS/P63 1943 AVIA 21/100 Albemarle I aircraft P.1438 for paratroop operations: trials TDS/P64 1943 AVIA 21/101 Dropping of Mk. I and Mk. III containers from Stirling I aircraft TDS/P69 1943 AVIA 21/102 Carriage and dropping of 4.2" mortar Mk. II TDS/P70 1943 AVIA 21/103 Carriage and dropping of Mk. III containers from a Hurricane aircraft TDS/P71 1943 AVIA 21/104 `X' type pack: four point attachment of harness TDS/P72 1943 AVIA 21/105 Oxygen and acetylene cylinders: dropping tests TDS/P73 1943 AVIA 21/106 Dropping of felt panniers TDS/P74 1943 AVIA 21/107 New type of static line hook for parachute descents: tests TDS/P75 1943 AVIA 21/108 Loading of containers and folding trollies on various bomber aircraft TDS/P76 1943 AVIA 21/109 Dropping wounded aircrew by parachute TDS/P77 Pts 1-9 1943 AVIA 21/110 Experimental percussion head: tests TDS/P78 1943 AVIA 21/111 E.A.S. panniers on 2 point suspension parachutes: tests TDS/P79 1943 AVIA 21/112 Mk. I(T) and Mk. III containers loaded to 500 lb. on standard 28 ft. parachutes: tests TDS/P80 1943 AVIA 21/113 Parachutes size 16 ft. 6 ins. cut on the square: tests TDS/P81 1943 AVIA 21/114 Flexible petrol tank: tests TDS/P82 1943 AVIA 21/115 `X' type parachute: test of standard inner bag with webbing stowage loops TDS/P83 1943 AVIA 21/116 X' type statichutes with 50 lb. nylon cord ties TDS/P84 1943 AVIA 21/117 Reduction of strop length in Halifax aircraft special parachute installation TDS/P85 1943 AVIA 21/118 Douglas C.47 and C.53 aircraft for paratroop operations using long strops TDS/P86 1943 AVIA 21/119 Paratroop trials on Douglas C.47 and C.53 aircraft including jumping with kitbags TDS/P60 60a Pts2-4 1943-44 AVIA 21/120 Carriage and dropping of Mk. III containers from Barracude II aircraft TDS/P87 1944 AVIA 21/121 Dropping of Bangalore torpedoes from bomb racks TDS/P88 1944 AVIA 21/122 Dakota I, II and III aircraft for troop transport TDS/P89 1944 AVIA 21/123 Wicker panniers with rope harness and experimental parachute: tests TDS/P90 1944 AVIA 21/124 Ventura Mk. II aircraft for paratroop operations: trials TDS/P91 1944 AVIA 21/125 Paratrooping with rifle valise TDS/P92 1944 AVIA 21/126 Paratrooping with kitbags TDS/P93 1944 AVIA 21/127 Stirling IV aircraft for paratroop operations: trials TDS/P94 1944 AVIA 21/128 X' type parachute: tests on gaiter stowage for static line TDS/P95 1944 AVIA 21/129 `X' type parachute: single point suspension TDS/P96 1944 AVIA 21/130 Supply dropping of containers from Lancaster I, II and III aircraft TDS/P97 1944 AVIA 21/131 Supply dropping of containers from Albemarle I and II aircraft TDS/P98 1944 AVIA 21/132 Supply dropping of containers from Halifax II and V aircraft TDS/P99 1944 AVIA 21/133 Trials of S.P.Q. type M.S. man and supplies dropping equipment TDS/P100 1944 AVIA 21/134 Parachutes size 28 ft. with cotton canopies in Mk. I and Mk. III containers TDS/P101 1944 AVIA 21/135 Parachute sight Mk. 1 TDS/P102 1944 AVIA 21/136 New design of catch for A.E.D. TDS/P103 1944 AVIA 21/137 Halifax II and V aircraft as troop transport TDS/P104 1944 AVIA 21/138 Thomas container location device: tests TDS/P105 1944 AVIA 21/139 Horsa I glider for paratroop operations: trials TDS/P106 1944 AVIA 21/140 `X' type parachute harness with modified lift webs TDS/P107 1944 AVIA 21/141 `H' type inner bags: tests TDS/P108 1944 AVIA 21/142 Double paratrooping from Stirling IV aircraft and Horsa I glider TDS/P109 1944 AVIA 21/143 Double paratrooping from Halifax II or V aircraft and Horsa I glider TDS/P110 1944 AVIA 21/144 E.A.S. panniers with modified lighting baffles attached TDS/P111 1944 AVIA 21/145 Stirling IV aircraft as troop transport TDS/P112 1944 AVIA 21/146 Anti-tank 6 pdr gun and Ford 5 cwt. car: dropping tests TDS/P113 1944 AVIA 21/147 Royal Enfield motor cycle 125 cc.: dropping tests TDS/P114 1944 AVIA 21/148 Dakota aircraft: release or retrieving of paratroops caught in static lines TDS/P115 1944-47 AVIA 21/149 Lancaster II and III aircraft as troop transport TDS/P116 1944 AVIA 21/150 Albemarle I, II and V aircraft as troop transport TDS/P117 1944 AVIA 21/151 Folding trolley Mk. II: dropping tests from various aircraft TDS/P118 Pts 1-2 1944-45 AVIA 21/152 Dropping of spare parts for Ford 5 cwt. car TDS/P119 1944 AVIA 21/153 Carriage of equipment by paratroops TDS/P120 Pts 1-5 1944-45 AVIA 21/154 Trials of man and supplies dropping equipment: parachute legbag TDS/P121 1944 AVIA 21/155 Parachute Tests TDS/P122 Pts 1-5 1944-45 AVIA 21/156 Special vane type auxiliary parachutes: tests TDS/P123 1944 AVIA 21/157 Dropping of camouflet set from Dakota aircraft door TDS/P124 1944 AVIA 21/158 Dropping of spare barrels for anti-tank 6 pdr. gun TDS/P125 1944 AVIA 21/159 Hudson III aircraft for dropping `A' type Mk. II equipment: trials TDS/P126 1944 AVIA 21/160 Carriage and dropping of Mk. I(T) Mk. III type C and type H containers from Seafire III aircraft TDS/P127 1944 AVIA 21/161 Dakota aircraft: supplies dropping with double fuselage doors removed TDS/P128 1944 AVIA 21/162 Polsten 20mm. gun: dropping by parachute TDS/P129 1944-45 AVIA 21/163 Carriage of British containers in Liberator and Fortress aircraft TDS/P130 1944 AVIA 21/164 Avenger aircraft: carriage and dropping of Mk. III containers TDS/P131 1944 AVIA 21/165 Dropping of spare barrels for anti-tank 17 pdr. gun TDS/P132 1944 AVIA 21/166 S.O.E. version roller conveyor system in Stirling IV aircraft: tests TDS/P133 1944 AVIA 21/167 Substitution of American G.I. parachutes for British container parachutes TDS/P134 1945 AVIA 21/168 Non-oscillating `X' type parachute: trials TDS/P135 Pts 1-4 1945 AVIA 21/169 Parachuting from `Cuda' floats TDS/P136 1945 AVIA 21/170 Folding trolley for wireless sets: dropping tests from Stirling IV and Dakota aircraft TDS/P137 1945 AVIA 21/171 Free dropping of miscellaneous packages from the Dakota aircraft roller conveyor TDS/P138 1945 AVIA 21/172 Warwick C Mk. III aircraft as troop transport: trials TDS/P139 1945 AVIA 21/173 New type auxiliary for 28 ft. flat and 20 ft. shaped gore parachutes: tests TDS/P140 1945 AVIA 21/174 Miscellaneous packages on toboggans: dropping tests from Dakota aircraft roller conveyor TDS/P141 1945 AVIA 21/175 Paratrooping from Dakota aircraft at high speed TDS/P142 1945 AVIA 21/176 Carriage and dropping of Mk. I(T) and Mk. III containers from Typhoon F.IB aircraft TDS/P143 1945 AVIA 21/177 American `Skyhook' container: dropping tests TDS/P144 1945 AVIA 21/178 Improvised packages for parachuting stores: dropping tests TDS/P145 1945 AVIA 21/179 Special paratroop green light for actuating and interrupter gear TDS/P146 1945 AVIA 21/180 Maximum size and weight of loads dropped through parachute exits TDS/P147 1945 AVIA 21/181 Warwick C Mk. III as a paratroop aircraft TDS/P148 1945 AVIA 21/182 Carriage and dropping of `F' type containers from Dakota aircraft TDS/P149 1945 AVIA 21/183 Stirling V aircraft for paratroop operations TDS/P150 1945 AVIA 21/184 Stirling V aircraft for troop transport TDS/P151 1945 AVIA 21/185 York aircraft for parachute operations: preliminary trials TDS/P152 1945 AVIA 21/186 Roller conveyor system for Stirling V aircraft TDS/P153 1945 AVIA 21/187 Automatic release of parachute gear TDS/P154 1945 AVIA 21/188 X' type parachute with imporous `D' panels TDS/P155 1945 AVIA 21/189 Commando C.46 aircraft for paratroop operations: trials TDS/P156 1945 AVIA 21/190 Supply dropping from Commando C.46 aircraft using Dakota type roller conveyor system TDS/P157 1945 AVIA 21/191 Field impregnating sets Mk. I: dropping tests from Dakota aircraft TDS/P158 1945 AVIA 21/192 Carriage and dropping Mk. I(T), Mk. III type `C' and type `H' containers from Wildcat V aircraft TDS/P159 1945 AVIA 21/193 Snatch eliminator for paratrooping with equipment: tests TDS/P160 1945 AVIA 21/194 Paratrooping from Halifax A VII aircraft fitted with Handley Page freight pannier TDS/P161 1946 AVIA 21/195 Carriage and dropping of Mk. I(T), Mk. III type `C' and type `H' containers from Firefly FR Mk. I aircraft TDS/P162 1946 AVIA 21/196 Paratrooping from Halifax A IX aircraft with and without freight pannier TDS/P163 1946 AVIA 21/197 Two 5 cwt. cars: dropping tests from Halifax aircraft TDS/P164 1946 AVIA 21/198 Carriage and dropping of folding bicycles from Dakota and Halifax aircraft TDS/P165 1946 AVIA 21/199 Ford 5 cwt. car and 75 mm. pack howitzer with ammunition trailer: dropping tests from Halifax aircraft TDS/P166 1946 AVIA 21/200 Ford 5 cwt. car and 10 cwt G.S. lightweight trailer: dropping tests from Halifax aircraft TDS/P167 1946 AVIA 21/201 Two 10 cwt. G.S. lightweight trailers: dropping tests from Halifax aircraft TDS/P168 Pts 1-2 1947 AVIA 21/202 Carriage and dropping tests of twin Mk. III containers on Halifax aircraft TDS/P169 1947 AVIA 21/203 Assessment of type B.3 driftmeter for paratrooping TDS/P170 1947 AVIA 21/204 Parachuting heavy equipment from the Halifax A IX aircraft TDS/P171 1947 AVIA 21/205 Modified Mk. III leg kitbag: tests TDS/P172 1947 AVIA 21/206 `Y' type containers: weathering, handling and dropping tests TDS/P173 1947 AVIA 21/207 Carriage and dropping of Mk. III containers from Tempest II aircraft TDS/P174 1947 AVIA 21/208 Prototype crate for carriage and dropping of three 350 cc. Matchless motor cycles TDS/P175 1947 AVIA 21/209 Carriage and dropping of O.Q.F. 25 pdr gun from Halifax aircraft TDS/P176 1948 AVIA 21/210 Quilter barometrically operated parachute device: tests TDS/P177 1949 AVIA 21/211 Paratrooping trials from a Fairchild type C 82 aircraft TDS/P178 1949 AVIA 21/212 Investigation on suitability of Valetta aircraft for a paratroop role TDS/P179 1949 AVIA 21/213 Paratrooping trials from Hastings aircraft TDS/P180 1949 AVIA 21/214 Despatchers safety harness: tests TDS/P181 1949 AVIA 21/215 Warning bell for transport aircraft in supply dropping role TDS/P182 1949 AVIA 21/216 Supply dropping of panniers and containers from Valetta C Mk II aircraft TDS/P183 1949 AVIA 21/217 Pannier dropping trials from Hastings C Mk I aircraft using Handley Page gravity type roller conveyor TDS/P184 1949 AVIA 21/218 Carriage and dropping of type `W' legbag fitted with an auxiliary parachute TDS/P185 1950 AVIA 21/219 Parachute type `X' Mk III with 150 1b centre base tie: trials TDS/P186 1950 AVIA 21/220 Development of the rotachute Res/2 1942 AVIA 21/221 Rotaplane for Valentine tank Res/3 1942 AVIA 21/222 Application of performance reduction methods to aircraft towing gliders Res/4 1942 AVIA 21/223 Swinging tendency of Master II aircraft towing a Hotspur glider Res/5 1943 AVIA 21/224 Synthetic trainer for paratroop stick drill Res/6 1943 AVIA 21/225 The differential equation of elastic equilibrium for rotor blades of varying mass distribution Res/7 1943 AVIA 21/226 Flight measurements of the drag of the Hotspur, Hadrian, Hengist, Horsa and Hamilcar gliders Res/8 1943 AVIA 21/227 Correction to the take-off distance of an aircraft, for variations of atmospheric and wind conditions, with application to aircraft towing gliders Res/9 1943 AVIA 21/228 Handling and stall characteristics of one-third scale Baynes Carrier Wing glider: preliminary tests Res/10 1943 AVIA 21/229 Measurements of tow-cable snatch loads and longitudinal accelerations in a glider in towed flight Res/11 1943 AVIA 21/230 Rotaplane to specification 11/42: flight tests Res/12 1944 AVIA 21/231 Effect of usage on the strength of glider two ropes Res/13 1944 AVIA 21/232 Rotaplane to specification 10/42: design and development Res/14 1944 AVIA 21/233 Investigation of the forces on equipment during parachute development Res/15 1944 AVIA 21/234 Extension of glider tow cable theory to elastic cables subject to air forces of a generalised form Res/16 1945 AVIA 21/235 Effect of the glider on the longitudinal trim of the tug Res/17 1945 AVIA 21/236 Comparison of the parachute forces during development of `R' and `C' type parachutes Res/18 1946 AVIA 21/237 Hoverfly I helicopter K.K. 978: investigation into the technique of performance measurement on helicopters Res/19 1946 AVIA 21/238 Focke-Achgelis Fa 223E helicopter No. V14 Res/20 1946 AVIA 21/239 Cable forces in towed glider flight with hemp and nylon tow cables Res/21 1946 AVIA 21/240 Performance reduction methods used at A.F.E.E. for tug and glider aircraft Res/22 c1946-47 AVIA 21/241 Vertical landing of a helicopter when the kinetic energy of the rotors is used as a temporary source of power Res/23 1947 AVIA 21/242 Forces on equipment during deployment of a parachute cluster by the retarder method Res/24 1947 AVIA 21/243 Critical opening speed and the opening forces of parachutes Res/25 1947 AVIA 21/244 Method of performance reduction for helicopters Res/26 1947 AVIA 21/245 Effect of the glider on the longitudinal static stability of a towing aircraft Res/27 1948 AVIA 21/246 Technique of dropping troops and military supplies by parachute 1939-1945 Res/28 1948 AVIA 21/247 Work of the Airborne Forces Experimental Establishment, 1940-1945 Res/29 1949 AVIA 21/248 Possible errors in records of dynamic forces in a simple tensiometer system Res/30 1950 AVIA 21/249 Wellington IC aircraft as a tug for Hotspur gliders T2 1942 AVIA 21/250 Hector aircraft towing Hotspur glider T3 1942 AVIA 21/251 Wellington III aircraft X.3286 towing Horsa glider: engine cooling tests T5 Pt 1 1942 AVIA 21/252 Halifax aircraft towing Horsa & Hamilcar gliders T1 Pts 2-4 1943 AVIA 21/253 Douglas C47/ C53 aircraft towing a Horsa glider: performance tests T4 Pts 1-4 1943-44 AVIA 21/254 Wellington III aircraft X.3286 towing a Horsa glider: performance tests T5 Pt 2 1942 AVIA 21/255 Master II aircraft DL.176 as tug for Hotspur gliders T6 1943 AVIA 21/256 Hudson III aircraft V.9228 towing a Horsa glider T7 1943 AVIA 21/257 Hudson III aircraft V.9228 towing two Hotspur gliders T8 Pt1 1943 AVIA 21/258 Hudson III aircraft V.9228 as a tug for Waco glider T8 Pt 2 1943 AVIA 21/259 Harvard II aircraft towing a Hotspur glider T9 1943 AVIA 21/260 Hector aircraft towing two Hotspur gliders T10 1943 AVIA 21/261 Lancaster aircraft as tugs for Horsa & Hamilcar gliders T11 Pts 1-2 1943 AVIA 21/262 Stirling I aircraft B.K.645 towing a Horsa glider T12 1943 AVIA 21/263 Stirling I aircraft B.K.645 towing Hamilcar glider T13 1943 AVIA 21/264 Whitley V aircraft towing Hengist glider T14 1943 AVIA 21/265 Spitfire VC aircraft towing Hotspur II glider T15 1943 AVIA 21/266 Albemarle IV aircraft P.1406 as tug for Hadrian glider T16 1943 AVIA 21/267 Douglas C.53/ C47 aircraft towing a Hadrian I glider T17 Pts 1-2 1943 AVIA 21/268 Albemarle aircraft towing Horsa glider T18 Pts 1-2 1943-44 AVIA 21/269 Albemarle IV aircraft as tug for Horsa glider T19 1943 AVIA 21/270 Albemarle aircraft towing a Hadrian glider: tests T20 Pts 1-4 1943-44 AVIA 21/271 Wellington X aircraft HE.731 towing a Hadrian glider T21 Pt 1 1943 AVIA 21/272 Wellington X aircraft towing a Horsa glider T22 1943 AVIA 21/273 Halifax aircraft fitted with lights for night towing T23 1943 AVIA 21/274 Wellington III aircraft X.3286 towing a Hadrian glider T24 1943 AVIA 21/275 Boston IIIA aircraft as tug for the Horsa glider T25 1943 AVIA 21/276 Stirling III aircraft as a tug for the Horsa glider T26 1943 AVIA 21/277 Warwick I aircraft BV 230 towing a Hadrian glider T27 1943 AVIA 21/278 Lancaster aircraft fitted with lights for night towing T28 1943 AVIA 21/279 Lancaster II aircraft DS.819 towing a Horsa glider T29 1943-44 AVIA 21/280 Whitley aircraft: twin tugging of Horsa gliders T30 1944 AVIA 21/281 Stirling IV aircraft as tug for Horsa glider T31 Pts 1, 3  & 4 1944 AVIA 21/282 Stirling IV aircraft EF.432 towing a Hamilcar glider T32 1944 AVIA 21/283 Spitfire IX aircraft BS.434 towing a Hotspur glider T33 1944 AVIA 21/284 Hudson VI aircraft towing a Hadrian glider T34 1944 AVIA 21/285 Lancaster III aircraft LM.451 towing a Horsa glider T35 1944 AVIA 21/286 Lancaster III aircraft towing a Hamilcar glider T36 1944 AVIA 21/287 Stirling IV aircraft towing a Hadrian glider: extended load tests under tropical conditions T37 1944 AVIA 21/288 Halifax III aircraft as a tug for a Horsa glider under tropical conditions T38 Pts 1-4 1945 AVIA 21/289 Commando Mk. C.46 aircraft towing a Horsa glider under tropical and temperate summer conditions T39 1945 AVIA 21/290 Dakota III aircraft towing a CG-13A glider under tropical conditions T40 1945 AVIA 21/291 Halifax III aircraft towing Hadrian gliders under temperate summer and tropical conditions T41 Pts 2-3 1945 AVIA 21/292 Halifax III aircraft towing a CG-13A glider under tropical conditions T42 1945 AVIA 21/293 Halifax III aircraft NA 644 as a tug for Hamilcar glider T43 Pts 1-3 1945 AVIA 21/294 Lancaster II aircraft as a tug for Hamilcar glider T44 1945 AVIA 21/295 Halifax III aircraft towing Hamilcar X glider under tropical conditions T45 1946 AVIA 21/296 Halifax VI aircraft as a tug for Hamilcar I glider ( Effect on performance of 8000lb freight pannier) T46 Pt2 1946 AVIA 21/297 Martinet I aircraft towing Hotspur glider T47 1946 AVIA 21/298 Martinet I aircraft towing TX 3/43 glider: performance and cooling trials T48 1946 AVIA 21/299 Auster V aircraft towing Grunau sailplane: performance and cooling trials T49 1946 AVIA 21/300 Auster V aircraft towing TX 8/45 glider: performance and cooling trials T50 1946 AVIA 21/301 York C. Mk. I aircraft towing Horsa II glider: performance and cooling trials for temperate summer conditions T51 1946 AVIA 21/302 Halifax A.IX aircraft as a tug for Horsa glider under temperate summer and tropical conditions T52 1947 AVIA 21/303 Halifax A.IX aircraft as a tug for Hamilcar I glider under temperate summer and tropical conditions T53 1947 AVIA 21/304 Halifax A.IX aircraft as a tug for Hamilcar X glider T54 1947 AVIA 21/305 Auster V. aircraft towing Olympia Eon sailplane: performance and cooling trials T55 1947 AVIA 21/306 Hastings aircraft towing a Hamilcar I glider T57 Pts 1-4 1948-49 AVIA 21/307 Auster VI aircraft towing Olympia Eon sailplane: performance and cooling trials T58 1948 AVIA 21/308 Valetta aircraft towing a Horsa II glider T59 Pts 1-3 1948-49 AVIA 21/309 Auster VI aircraft towing TX8/45 glider: performance and cooling trials T60 1948 AVIA 21/310 Hastings aircraft towing a Horsa II glider: performance and cooling under temperate summer and tropical conditions T61 1949 AVIA 21/311 Mosquito aircraft TT 39 towing sleeve and wing targets: performance and engine cooling trials T62 1949 AVIA 21/312 Hastings aircraft TE 583: air intake temperate tests T63 1949 AVIA 21/313 Beaufighter TT aircraft towing sleeve and wing targets: performance and engine cooling trials T64 1949 AVIA 21/314 Auster V aircraft towing Sedbergh TX-Mk I glider: performance and cooling trials T65 1949 AVIA 21/315 Tempest TT5 aircraft towing sleeve and wing targets: performance and engine cooling trials T66 1949 AVIA 21/316 Towing lights for tug aircraft E1 1943 AVIA 21/317 Automatic undercarriage release and arresting gear for Hamilcar glider E2 1943 AVIA 21/318 Mechanical sight for night and daytime towing E3 1943 AVIA 21/319 Engine cooling tests on Dakota III aircraft E4 1944 AVIA 21/320 Hadrian pick-up ropes: endurance tests E5 1945 AVIA 21/321 Pick-up of Horsa I and Horsa II gliders by Dakota aircraft E6 1945 AVIA 21/322 Cable laying from Auster aircraft E7 1945 AVIA 21/323 Mail pick-up by Auster aircraft E8 1946 AVIA 21/324 Cable laying from Dakota aircraft E9 1947 AVIA 21/325 Mail pick-up by the two-stage method E10 1947 AVIA 21/326 Strain gauge measuring equipment for the investigation into forces on equipment dropped by parachute E11 1947 AVIA 21/327 Investigation of the suitability of nylon for use in glider tow cables E13 1947 AVIA 21/328 Pick-up of a sixteen foot winged target by two stage method (Tests at increased contact speed) E12 Pt 2 1949 AVIA 21/329 Hoverfly I helicopter KL 105: Tests Rota 1 Pts 1-4 1947-50 AVIA 21/330 Hoverfly II helicopter: determination of weight and C.G. limits, performance and handling tests Rota 2 Pts 1-2 1947-50 AVIA 21/331 Sikorsky S.51 helicopter VW.209: performance and handling tests, engineering and maintenance appraisal Rota 3 Pts 1-2 1947-48 AVIA 21/332 Blind flying: interim note on tests on Hoverfly I helicopter Rota 4 Pats 1-2 1948-49 AVIA 21/333 V-g records on helicopters Rota 5 1948 AVIA 21/334 Performance after power failure of a helicopter with blade pitch control Rota 6 1949 AVIA 21/335 Focke-Achgelis Fa-330 machine: tests Rota 7 1950 AVIA 21/336 Suitability of Lysander for tugging TDS/G1 1941 AVIA 21/337 Hotspur Mk II glider: tests TDS/G8 1941 AVIA 21/338 Cable and webbing statichutes: comparison trials TDS/P1 1941 AVIA 21/339 Possible use of Dominie for paratroop dropping TDS/P2 1941 AVIA 21/340 Relative positions of containers and men during development of their respective statichutes TDS/P3 1941 AVIA 21/341 Vertical stowage and dropping of Hengist containers TDS/P10 1941 AVIA 21/342 Deployment of `A' type statichutes: experiments TDS/P13 1941 AVIA 21/343 Proposed modifications to Liberator for special parachute operations TDS/P19 1942 AVIA 21/344 Tests of paratroop installation devised by RAF Command Middle East TDS/P20 Pt 2 1943 AVIA 21/345 Halifax aircraft: trials for paratroop operations TDS/P28 Pts 1-3 1942-44 AVIA 21/346 Mk III containers fitted with two point parachute suspension: dropping tests TDS/P31 1942 AVIA 21/347 American installation of paratroop equipment on Hudson aircraft: tests TDS/P32 1942 AVIA 21/348 Suitability of various bomber aircraft for transporting troops: tests TDS/P48 Pt  1943 AVIA 21/349 BSA folding bicycle: dropping tests from aircraft by parachute TDS/P49 1942 AVIA 21/350 Douglas C47 and C53 aircraft: paratroop trials, including jumping with kitbags TDS P60 60a & Pts 2-4 1943-44 AVIA 21/351 Dropping of 75 mm American pack howitzer gun Mk I TDS P61 Pts 3-5 1944 AVIA 21/352 Ramex cotton parachute canopies: tests TDS P65 1943 AVIA 21/353 Dropping of Smith gun from Wellington III aircraft TDS P66 1943 AVIA 21/354 Improved wheeled container: dropping tests TDS P67 1943 AVIA 21/355 Parachuting from door of Whitley aircraft TDS P68 1943 AVIA 21/356 Dropping of Mk I and Mk III containers from Stirling aircraft TDS P69 Pt 2 1943 AVIA 21/357 Carriage and dropping of Mk II 4.2" mortar TDS P70 Pts 2-3 1943-44 AVIA 21/358 Investigation of Dakota III aircraft for troop transport with revised loading data TDS P89 Pt 2 1944 AVIA 21/359 Dropping the Polsten 20mm gun by parachute TDS P129 Pt 1 1945 AVIA 21/360 Hudson parachute release gear: automatic release of parachutes on landing TDS P154 Pt 2 1945 AVIA 21/361 Albemarle IV aircraft towing a Hadrian glider: extension of range T16 Pt 2 1943 AVIA 21/362 Stirling IV as tug for Horsa glider: extension of range T31 Pt 2 1944 AVIA 21/363 Halifax III aircraft NA 644 as tug for Hadrian glider under tropical conditions T41 Pt 1 1945 AVIA 21/364 Halifax VI aircraft as tug for Hamilcar I under temperate summer and tropical conditions T46 Pt 1 1946 AVIA 21/365 Pick up of a sixteen foot winged target by the two-stage method (see also  AVIA 21/328) E12 Pt 1 1946 AVIA 21/366 Halifax II as tug for Hamilcar ( see also AVIA 21/252) T1 Pt 1 1942