Po završetku DSR-a saveznički piloti su razvili fetiš prema brišućim letovima iznad naseljenih oblasti. Kako je ovo bilo em opasno, em je uznemiravalo stanovništvo, saveznička komanda je ovu prasku najstrožije zabranila, ali od toga je bila slaba vajda. Svaki pilot je mogao da se pravda da nije on leteo jer nije postojao način da se utvrdi koja letelica je izvela brišući let.
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Kako bi nekako stala na kraj ovoj praksi, komanda USAAF je donela odluku da svaka letelica dobije takozvani buzz broj, buzzing je u USAAF žargonu brišući let, koji će biti postavljen na trup i sa donje strane krila, a koji će biti dovoljno jednostavan i veliki da svako može da ga uoči i zapamti.
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Stoga je svaka letelica u inventaru USAAF dobila svoju buzz broj koji se sastojao od kombinacije dva latinična slova i tri poslednje cifre serijskog broja aviona. Slovna kombinacija se sastojala od dva slova i to prvog koje je označavalo o kojoj se vrsti letelice radi i drugog slova koje je bilo individualno za svaki tip aviona. U slučaju lovaca prvo slovo je bilo P/F, bombardera B, jurišnika A, transportnih C, trenažni T, laki L, laki izviđački O, jedrilice G, helikopteri i dronovi Q, hidroavioni U i eksperimentalni Y. U slučaju da su se tri zadnje cifre serijskih brojeva letelica poklapale, dodavana su slova A ili B.
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Ovi brojevi su korišteni do 1962. godine, kada su ukinuti. Takođe treba napomenuti da se ovih pravila nisu često držali, tako da su i eksperimentalni avioni, ili prototipovi, dobijali normalne kodove. U nastavku je tabela sa slovnim oznakama dodeljenim svakom tipu letelica.
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Kod | Proizvođač | Letelica | Napomena |
AA | Douglas | A-24 Banshee | |
AB | Curtiss | A-25 Shrike | |
AC | Douglas | A-26 Invader | Prekodiran u BC 1948. |
AD | Vultee | A-31 Vengeance | |
AE | Convair | XA-41 | |
BA | Boeing | B-17 Fortress | Kod kasnije dodeljen B-57 |
BA | Martin | B-57 Canaberra | |
BB | Douglas | XB-19 | Kod kasnije dodeljen B-66 |
BB | Douglas | B-66 Destroyer | |
BC | Consolidated | B-24 Liberator | Kod kasnije dodeljen B-26 |
BC | Douglas | B-26 Invader | |
BD | North American | B-25 Mitchell | |
BE | North American | B-45 Tornado | Prekodiran u BH 1948. |
BF | Boeing | B-29 Superfortress | |
BG | Consolidated | B-32 Dominator | |
BG | Northrop | XB-35 | |
BH | Lockheed | B-37 Ventura | |
BH | North American | B-45 Tornado | Prethodno BE |
BJ | Boeing | XB-39 Superfortress | |
BK | Douglas | XB-42Mixmaster | |
BK | Boeing | B-50 Superfortress | |
BL | Boeing | XB-44 Superfortress | |
BM | Convair | B-36 Peacemaker | |
CA | Beechcraft | CQ-3 Expeditor | |
CA | Douglas | C-124 Globemaster II | |
CB | Beechcraft | UC-43 Traveler | |
CC | Beechcraft | C-45 Expeditor | |
CD | Curtiss | C-46 Commando | |
CE | Douglas | C-47 Skytrain | |
CF | Douglas | C-48 | |
CG | Douglas | C-49 | |
CH | Douglas | C-53 Skytrooper | |
CJ | Douglas | C-54 Skymaster | |
CK | Lockheed | C-60 Lodestar | |
CL | Noordyn | UC-64 Norseman | |
CM | Lockheed | C-69 Constelation | |
CN | Douglas | C-74 Globemaster | |
CP | Cessna | UC-78 Bobcat | |
CP | Convair | C-131 Samaritian | |
CQ | Fairchild | C-82 Packet | |
CQ | Fairchild | C-119 Flying Boxcar | |
CR | Convair | C-87 Liberator Express | |
CS | Boeing | C-97/KC-97 Stratofreighter | |
CT | Convair | XC-99 | |
CU | Douglas | C-117 Skytrooper | |
CV | Douglas | C-118 Liftmaster | |
CW | Lockheed | C-121 Constelation | |
CY | Chase | YC-122 Avitruc | |
CZ | Chase | C-123 Provider | |
CZ | Fairchild | C-123 Provider | |
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Kod | Proizvođač | Letelica | Napomena |
FA | Beechcraft | F-2 Expeditor | Poništen 1948. |
FB | Lockheed | F-5 Lightning | Poništen 1948. |
FC | North American | F-6 Mustang | Poništen 1948. prekodiran u FF |
FD | Consolidated | F-7 Liberator | Poništen 1948. |
FE | Boeing | F-9 Superfortress | Poništen 1948. prekodiran u BA |
FF | North American | F-10 Mitchell | Poništen 1948. prekodiran u BD |
FG | Boeing | F-13 Superfortress | Poništen 1948. prekodiran u BF |
FH | Northrop | F-15 Reporter | Poništen 1948. prekodiran u FK |
F | Northrop | N-156F | |
FA | Lockheed | F-38 Lightning | Prethodno PA |
FA | Lockheed | F-94 Starfire | |
FA | Northrop | F-5 Freedom Fighter | |
FB | Bell | F-39 Aircobra | Prethodno PB |
FB | McDonnell | F-101 Voodoo | |
FC | Curtiss | F-40 Warhawk | Prethodno PC |
FC | Convair | F-102 Delta Dagger | |
FD | Republic | XF-103 | |
FE | Republic | F-47 | Prethodno PE |
FE | Convair | F-106 Delta Dart | |
FF | North American | F-51 | Prethodno PF |
FG | Lockheed | F-104 Starfighter | |
FH | Republic | F-105 Thunderchief | |
FJ | Bell | F-59 Airacomet | Prethodno P-89 |
FJ | McDonnell | F-110 Spectre | Kasnije preimenovan u F-4 Phantom |
FK | Northrop | F-61 Black Widow | Prethodno PK |
FL | Bell | F-63 Kingcobra | Prethodno PL |
FN | Lockheed | F-80 Shooting Star | Prethodno PL, prekodiran u FT |
FP | Convair | XF-81 | Prethodno PP |
FQ | North American | F-82 Twin Mustang | Prethodno PQ |
FR | Bell | XF-83 | Prethodno PR |
FS | Republic | F-84 Thunderjet | |
FT | Lockheed | F-80 Shooting Star | Prethodno PL, prekodiran u FT |
QFT | Lockheed | QF-80 | |
FU | North American | F-86 | Prethodno PU |
FV | Northrop | F-89 Scorpion | |
FW | North American | F-100 Super Sabre | |
FX | Lockheed | YF-12 Blackbird | |
FY | North American | FY-93 | |
FY | North American | FY-95 | Prekodiran u FU |
GA | Waco | PG-2 | |
GB | Waco | PG-3 | |
GC | Waco | CG-4 | |
GD | Laister-Kauffman | XCG-10 Trojan Horse | |
GE | Waco | CG-13 | |
GF | Chase | YCG-14 | |
GG | Waco | CG-15 | |
GH | Chase | YCG-18 | |
GJ | Chase | YCG-20 | |
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Kod | Proizvođač | Letelica | Napomena |
LA | Taylorcraft | L-2 Grasshopper | |
LA | Piper | L-4 Grasshopper | Prethodno LC |
LB | Aeronca | L-3 Grasshopper | |
LB | Stinson | L-5 Sentinel | Prethodno LD |
LC | Aeronca | L-16 | Prethodno LH |
LD | Ryan | L-17B / U-18B Navion | |
LE | Interstate | L-6 Cadet | |
LE | Boeing | L-15 Scout | |
LE | Piper | L-18 Super Cub | |
LF | Piper | L-14 | |
LF | Cessna | L-19 Bird Dog | |
LG | Convair | L-13 Grasshopper | |
LG | de Havilland Canada | L-20 Beaver | |
LH | Piper | L-21 Super Cub | |
LJ | North American | L-17A/C U-18A/C Navion | |
LJ | Beechcraft | L-23 | |
LK | Aero Commander | L-26 | |
OA | Grumman | OA-9 Goose | |
OB | Consolidated | OA-10 Catalina | |
OC | North American | O-47 | |
OD | Kellett | YO-60 | |
OE | Boeing | PB2B-1 Catalina | |
PA | Lockheed | P-38 Lightning | Prekodiran u FA 1948. |
PB | Bell | P-39 Aircobra | Prekodiran u FB 1948. |
PC | Curtiss | P-40 Warhawk | Prekodiran u FC 1948. |
PD | Curtiss | XP-42 | |
PE | Republic | P-47 Thunderbolt | Prekodiran u FE 1948. |
PF | North American | P-51 Mustang | Prekodiran u FF 1948. |
PG | Curtiss | XP-55 Ascender | |
PH | Lockheed | XP-58 Chain Lightning | |
PJ | Bell | P-59 Airacomet | Prekodiran u FJ 1948. |
PK | Northrop | P-61 Bčack Widow | Prekodiran u FK 1948. |
PL | Bell | P-63 Kingcobra | Prekodiran u FL 1948. |
PM | Fisher | P-75 Eagle | |
PN | Lockheed | P-80 Shooting Star | Prekodiran u FT 1948. |
PP | Convair | XP-81 | Prekodiran u FP 1948. |
PR | Bell | XP-83 | Prekodiran u FR 1948. |
PS | Republic | P-84 Thunderjet | Prekodiran u FS 1948. |
PU | North American | P-86 Sabre | Prekodiran u FU 1948. |
QF | Piasecki | H-21 Workhorse | |
QK | Culver | Q-14 Cadet | |
RF | North American | RF-51 Mustang | |
TA | North American | AT-6 Texan | |
LTA | North American | LT-6G Texan | |
TB | Beechcraft | AT-7 Navigator | |
TC | Beechcraft | AT-11 Kansen | |
TC | Mikojan Gurjevič | MiG-15 | |
TC | Convair | TF-102 Delta Dagger | |
TD | Fairchild | AT-21 Gunner | |
TD | Beechcraft | T-34 Mentor | |
BTE | Vultee | BT-13 Valiant | |
TE | Cessna | T-37 Tweet | |
PTF | Boeing | PT-13 Kaydet | |
TF | North American | TF-51 Mustang | |
TF | Northrop | T-38 Talon | |
TG | Boeing | PT-17 Kaydet | |
TG | Lockheed | TF-104 Starfighter | |
TG | North American | T-39 Sabreliner | |
TH | Fairchild | PT-19 | |
TJ | Culver | PQ-8 Cadet | |
TK | Culver | PQ-14 Cadet | |
TL | North American | T-28 Trojan | |
TP | Convair | T-29 Flying Classroom | |
TQ | Fairchild | T-31 | |
TR | Lockheed | T-33 Shooting Star | |
UG | de Havilland Canada | U-6 Beaver | |
UH | Piper | U-7 Super Cub | |
UK | Aero Commander | U-4 / U-9 | |
YF | North American | YF-93 | |
YT | Cessna | YAT-37D | |