List of aircraft (Si)

SIA

(Società Incremento Aviazione, Cameri)

• Gabardini 1911 Le Monaco monoplane
• Gabardini 1912 flying boat
• Gabardini 1913 monoplane
• Gabardini 1914 biplane

SIA

(Societá Industriale l'Aviazone)

• Bastianelli P.R.B.

SIA-Delaunay-Belleville

(Société Industrielle d'Aviation - Etablissements Delaunay-Belleville)

• S.I.A.-Coanda BN2^[1]
• S.I.A.-Coanda Lorraine bomber^[1]

SIA

(Società Italiana Aviazione / Società Italiana degli Aeroplani)

• SIA FB
• SIA 7
• SIA R2
• SIA 9B

SIA

(Società Italiana degli Aeroplani / Enrico Luzzatto)

• SIA 1913 racing monoplane Roma^[2][3]
• SIA 1913 Circuito dei Laghi floatplane (Roma on floats)^[2]

SIAI

(Società Italiana Aeroplani Idrovolanti / Societa Idrovolanti Alta Italia - S.I.A.I)

• SIAI S.8
• SIAI S.9
• SIAI S.12
• SIAI S.13
• SIAI S.16
• SIAI S.17
• SIAI S.19
• SIAI S.21
• SIAI S.22
• SIAI S.23
• SIAI S.50 (MVT)
• SIAI S.50 Hydro
• SIAI S.51
• SIAI S.52
• SIAI S.58
• SIAI S.67

SIAI Marchetti

(Italy)

• SIAI-Marchetti SM.91
• SIAI-Marchetti SM.92
• SIAI-Marchetti SM.95
• SIAI-Marchetti SM.101
• SIAI-Marchetti SM.102
• SIAI Marchetti S.205
• SIAI Marchetti S.208
• SIAI Marchetti S.210
• SIAI Marchetti S.211
• SIAI Marchetti SF.250
• SIAI-Marchetti SF.260
• SIAI Marchetti Canguro
• SIAI-Marchetti SM.1019
• SIAI-Marchetti FN.333 Riviera
• SIAI-Marchetti SH-4
• SIAI-Marchetti SV-20

SIAT

(Siebel Flugzeugwerke ATG)

• SIAT 222 Super Hummel
• SIAT 223 Flamingo

SibNIA

• SibNIA TVS-2MS

Siddeley-Deasy

(Siddeley-Deasy Motor Company, United Kingdom)

• Siddeley-Deasy R.T.1
• Siddeley-Deasy SR.2 Siskin
• Siddeley-Deasy Sinaia

Sido

(Józef Sido)

• Sido S.1

Siebel

• Siebel Fh 104 Hallore
• Siebel Si 201
• Siebel Si 202 Hummel
• Siebel Si 204

Siegrist

(Rudolf Siegrist, Parma, Ohio, United States)

• Siegrist RS1 Ilse^[4]

Siemens and FlyEco

• Siemens-FlyEco Magnus eFusion

Siemens-Schuckert

(Siemens-Schuckertwerke)

• Siemens-Schuckert 1911 monoplane
• Siemens-Schuckert B.I^[5]
• Siemens-Forssmann Bulldog^[5]
• Siemens-Schuckert D.I
• Siemens-Schuckert D.II
• Siemens-Schuckert D.III
• Siemens-Schuckert D.IV
• Siemens-Schuckert D.V
• Siemens-Schuckert D.VI
• Siemens-Schuckert Dr.I
• Siemens-Schuckert DDr.I
• Siemens-Schuckert DD 5^[5]
• Siemens-Schuckert E.I
• Siemens-Schuckert E.II
• Siemens-Schuckert E.III
• Siemens-Schuckert L.I
• Siemens-Schuckert Forssman
• Siemens-Schuckert Steffen R.I
• Siemens-Schuckert Steffen R.II
• Siemens-Schuckert Steffen R.III
• Siemens-Schuckert Steffen R.IV
• Siemens-Schuckert Steffen R.V
• Siemens-Schuckert Steffen R.VI
• Siemens-Schuckert Steffen R.VII
• Siemens-Schuckert R.VIII
• Siemens-Schuckert R.IX (project only)
• Siemens-Schuckert Torpedogleiter^[5]

Siemetzki

• Siemetzki ASRO 3-T^[6]
• Siemetzki ASRO 4^[6]

Sierra

(Aircraft Industries Ltd (founders: John L Berney, J F Long, Art Wild), 931 E 14 St, San Leandro, California, United States)

• Sierra BLW-1^[4]
• Sierra BLW-2^[4]

Sierra

(Sierra Aircraft Co (pres: Leon T Eliel), Sierra Airdrome, Foothill Blvd, Sierra Madre, California, United States)

• Sierra Standard^[4]

Siersma

(Herman Siersma, Detroit, Michigan, United States)

• Siersma SRC-1^[4]

Sievers-Miller

((?) Sievers and Phillip Miller, Valley City, North Carolina, United States)

• Sievers-Miller Special^[4]

Sikorsky

(Igor Ivanovich Sikorsky, Russia)

• Sikorsky S-1
• Sikorsky S-2
• Sikorsky S-3
• Sikorsky S-4
• Sikorsky S-5
• Sikorsky S-6
• Sikorsky S-7
• Sikorsky S-8 Malyutka
• Sikorsky S-9 Kruglyi
• Sikorsky S-10
• Sikorsky S-11
• Sikorsky S-12
• Sikorsky S-13
• Sikorsky S-14
• Sikorsky S-15
• Sikorsky S-XVI
• Sikorsky S-XVII
• Sikorsky S-XVIII
• Sikorsky S-XIX
• Sikorsky S-XX
• Sikorsky S-XXII
• Sikorsky S-XXIII
• Sikorsky S-XXIV
• Sikorsky S-XXV
• Sikorsky S-XXVI
• Sikorsky S-XXVII
• Sikorsky S-28
• Sikorsky Alexander Nevsky (1916 replacement for the IM)
• Sikorsky Ilya Muromets (a.k.a. Grand or Bolshoi Baltiiski)
• Sikorsky Russky Vityaz

Sikorsky Aircraft Corporation

(United States)

• Sikorsky BLR-3
• Sikorsky C-6
• Sikorsky C-28
• Sikorsky H-3
• Sikorsky H-5
• Sikorsky H-7
• Sikorsky H-18
• Sikorsky H-19
• Sikorsky H-34
• Sikorsky H-37
• Sikorsky H-38-SI^[7]
• Sikorsky H-39
• Sikorsky H-52
• Sikorsky H-53 all variants of the H-53
• Sikorsky H-54
• Sikorsky H-59
• Sikorsky H-60 all variants of the military S-70
• Sikorsky HJS
• Sikorsky HNS
• Sikorsky HO2S
• Sikorsky HO3S
• Sikorsky HO4S
• Sikorsky HO5S
• Sikorsky HRS
• Sikorsky HR2S
• Sikorsky HR2S-1W
• Sikorsky HR3S
• Sikorsky HR3S
• Sikorsky HSS
• Sikorsky HUS
• Sikorsky HU2S
• Sikorsky JRS
• Sikorsky JR2S
• Sikorsky OA-8
• Sikorsky OA-10
• Sikorsky OA-11
• Sikorsky PS-1
• Sikorsky PS-2
• Sikorsky P2S
• Sikorsky PBS
• Sikorsky RS
• Sikorsky R-4
• Sikorsky R-5
• Sikorsky R-6 Hoverfly II
• Sikorsky V-2
• Sikorsky Cypher
• Sikorsky Cypher II
• Sikorsky S-28
• Sikorsky S-29-A
• Sikorsky S-30
• Sikorsky S-31
• Sikorsky S-32
• Sikorsky S-33
• Sikorsky S-34
• Sikorsky S-35
• Sikorsky S-36
• Sikorsky S-37
• Sikorsky S-38
• Sikorsky S-39
• Sikorsky S-40
• Sikorsky S-41
• Sikorsky S-42
• Sikorsky S-43
• Sikorsky S-44
• Sikorsky S-45
• Sikorsky S-50
• Sikorsky S-51
• Sikorsky S-52
• Sikorsky S-53
• Sikorsky S-54
• Sikorsky S-55
• Sikorsky S-57
• Sikorsky S-58
• Sikorsky S-59
• Sikorsky S-60
• Sikorsky S-61
• Sikorsky S-62
• Sikorsky S-63
• Sikorsky S-64
• Sikorsky S-65
• Sikorsky S-67
• Sikorsky S-68
• Sikorsky S-69
• Sikorsky S-70
• Sikorsky S-71
• Sikorsky S-72
• Sikorsky S-75
• Sikorsky S-76
• Sikorsky S-80
• Sikorsky S-92 Helibus
• Sikorsky S-333
• Sikorsky S-434
• Sikorsky SH-3H AEW
• Sikorsky H-92 Superhawk
• Sikorsky RVR Reverse Velocity Rotor^[8]
• Sikorsky SS
• Sikorsky Standard
• Sikorsky UH-60 Black Hawk
• Sikorsky UN-4
• Sikorsky Cypher
• Sikorsky CH-148 Cyclone Canadian Armed Forces
• Sikorsky-Boeing SB-1 Defiant
• Sikorsky VH-92

Silbervogel

• Silbervogel Project Plane

Silence aircraft

• Silence Twister

Silent Family

(Silent Family Helmet Grossklaus, Westerrade, Germany)

• Silent Family Silent Glider e-M
• Silent Family Silent Glider M
• Silent Family Silent Glider ME
• Silent Family Silent Racer

Silesia (First Silesian aircraft factory)

• Silesia S-3
• Silesia S-4
• Silesia S-10

Silhouette

(Task Research Inc. / Silhouette Aircraft Inc., Santa Paula, California, United States)

• Silhouette Aircraft SA-60 Silhouette^[4][9]

Silvanskii

(A. V. Silvanskii)

• Silvanskii IS^[10]
• Silvanskii I-220

Silver Wing

(Silver Wing Aircraft Co (founders: Edward Euler, A H Hogue), 28th & Spruce Sts, Boulder, Colorado, United States)

• Silver Wing 1928 Monoplane^[4]

Silvercraft

(Silvercraft SpA, Italy)

• Silvercraft SH-4
• Silvercraft SH-200

Silverston

()

• Silverston Milwaukee#2^[4]

Simmering-Graz-Pauker

(Simmering-Graz-Pauker A.G.)

• SGP M-222 Flamingo

Simmonds Aircraft

(United Kingdom)

• Simmonds Spartan

Simmons

(Herbert H Simmons, 2111 Franklin St, San Diego, California, United States)

• Simmons Sp-1 Sport Monoplane^[4]

Simonet

• Simonet SHBF Aviette^[11][12]

Simplex

(Société des Avions Simplex) see:Arnoux

Simplex

(Simplex Aircraft Co (founders: E J & F W Allen), Defiance, Ohio, United States)

• Simplex K-2-C Red Arrow
• Simplex K-3-C Red Arrow
• Simplex K-2-S Red Arrow
• Simplex W-2-S Red Arrow
• Simplex R-2-D Red Arrow Dual Plane a.k.a. Simplex Racer
• Simplex S-2 Kite^[4]
• Simplex Special^[4]
• Simplex W-5-C^[4]

Simpson

(F Simpson, Wheeling, West Virginia, United States)

• Simpson Maverick^[4]
• Simpson Special^[4]

Simůnek / Kamarýt

(Jan Simůnek MSc / Jaroslav Kamarýt)

• Simůnek / Kamarýt SK-1 Trempík (Trempík – Little Tramp)^[13]
• Simůnek VBS-1

Sindlinger

(Fred G Sindlinger, Puyallup, Washington, United States)

• Sindlinger HH-1^[4]
• Sindlinger Special#1^[4]

Sink

(Everett Sink, Zanesville, Ohio, United States)

• Sink S-1^[4]

Sino Swearingen Aircraft Corporation

• Sino Swearingen SJ-30

Sioux

(Sioux Aircraft Co, Sioux City, Iowa, United States)

• Sioux Coupe 60^[4]
• Sioux Coupe 90^[4]
• Sioux Coupe 90-A^[4]
• Sioux Coupe 90-B Junior^[4]
• Sioux Coupe 90-C Senior^[4]

SIPA

(Société Industrielle Pour l'Aéronautique, France)

• SIPA S.10
• SIPA S.11
• SIPA S.111
• SIPA S.12
• SIPA S.121
• SIPA S.20^[14][15]
• SIPA S.30^[16]
• SIPA S.50^[17][15]
• SIPA S.70
• SIPA S.90
• SIPA S.901
• SIPA S.902
• SIPA S.903
• SIPA S.904
• SIPA S.91
• SIPA S.92
• SIPA S.93
• SIPA S.94
• SIPA S.200 Minijet
• SIPA S.251 Antilope
• SIPA S.261 Anjou
• SIPA S.262
• SIPA S.300
• SIPA S.1000 Coccinelle
• SIPA S.1100

Sipowicz

• Sipowicz I

Sisler

((A M Bert) Sisler Aircraft Co, Bloomington, Minnesota, United States)

• Sisler SF-1 Pipit^[4]
• Sisler SF-2 Whistler^[4]
• Sisler SF-2A Cygnet

SITAR

(Sociètè Industrielle de Tolerie pour l'Aéronautique et Matériel Roulant)

• SITAR GY-90 Mowgli
• SITAR GY-100 Bagheera
• SITAR GY-110 Sher Khan

Sivel Aeronautica

• Sivel SD27 Corriedale
• Sivel SD28

Six Chuter

(Yakima, Washington, United States)

• Six Chuter SR1
• Six Chuter SR2
• Six Chuter SR5
• Six Chuter SR7
• Six Chuter Power Hawk
• Six Chuter Discovery
• Six Chuter Legend P103UL
• Six Chuter Legend SE
• Six Chuter Legend XL
• Six Chuter Legend XL Paragon 912
• Six Chuter Skye Ryder Aerochute

Sizer

• Sizer Rosette^[18]
• Sizer Sapphire^[18]