Air Force the Official Service Journal - Air Force Historical Studies ...

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R.6 I:>:CJ: the AAF S helicopter, the accepted Sikorsky delivery of its first successful XR--I-, in the spring of 19-1-), three new models have been added to our whirligig family. The most unllSu;l] design among the newcomers is that of the Plutt-Lcf'agc XR-I, a twin-rotor craft weighing 4,800 pounds. Far from being rcadv to appear in qua ntitv, the XR-I is just coming out of the experimental stage. Its couvcntionallv shaped fuselage has tandem scats with sliding canopies and the bottom of the compartments is of transparent plastic. The high stnbilizcr and rudder empennage of the tail arc similar to those of the normal airplane tail assembly. There arc no elevators, At each end of the pvlous, which project from the fuselage like \\'ings. is a three-bladed rotor, each hlacle approximately 15 feet long. These rotors neutralize torque bv rotating in opposite directions. thcrcbv eliminating the need for the tail rotor used on the Sikorskv-tvpc helicopters. A -I-50-hp Pratt and \\'hitnev radial engine powers the XR-l. /\lthough ordered earlier than the first experimental R-4, the XR-l was not succcssfullv flight tested until the summer of 19-1-). An improved version of the original R--1-helicopter has been designated the R-b. The "Six" looks like an 0\'('[sized squash gourd with rotors and wheels. The square corners of the R--I- h;l\c been eliminated in its successor. A small nosc-who;-] protects the plexiglas nose of the craft. Other new materials used in the R-b include a paper-based cowling that encloses the engine and rotor shaft. The cabin is constructed of plastic impregnated glass fiber cloth. The OCTOBER,1944 OUR NEW HELICOPTERS slender tail cone has a covering of tough magnesiulll skin. Powered with a 2-1-5-hp Franklin six-cvlindcr horizontullvopposed engine, the R- ') has a top speed in excess of I rio mph, a normal useful load capacity of approximutclv half a ton and can climb to 5.900 feet in less than seven minutes. E\'aeuation litters can be installed on each side of the fuselage. Pilots and observer sit sidc-bv-sidc. The R-,) helicopter is the big brother of the "Six." In configuration the craft resembles the R-b and R--I- helicopters, having one main three-bladed rotor and a vertical tail rotor. The main rotor is the largest ever built. measuring -1-8feet across the disc. The R-S's nine-evlinder aircooled Pratt and \\-hitnev engine den-lops -I-50-I;p. Fuselage of the R-:; measures approximately 40 feet from nose to tail. It is built in three sections. The center section. supportiug the eugine. is made of welded steel tubing, cowlcd with plastic-impregnated molded plywood. The tail section is a wooden monoeoque cone to snpport the tail rotor. A long shaft atop the cone's exterior is geared to the engine for turning the solid wood, seven-foot blades of the vertical rotor. The nose section is an aluminum .rllov channel superstructure mounted on an aluminum mOJ1(jcoque floor. This forward section houses the plexiglas-enclosed cabi». The R-,) has a convcnt ional landing gen. The observer sits in the nose with the pilot directly behind him. Stick and rudder controls arc dual. Space is available for cameras, radio accessories and other auxiliarv equipment in cockpits. Four litters, two on a side, em he carried hy the R-5. * 53 ..•
A MAINTENANCE ROUNDUP PREPARED IN CDL VICE COMMAND AND TECHNICAL INSPECTION DIVISION, AIR INSPECTOR'S OFFICE The Straight and Narrow: The clop clopclop of C I shoes on lI'ing to fuselage fillet will hring about eracking of fillet or elongation to atL1Ching holes, .\!en performing maintenance will contribute to pl.mc's aerodvu.unic cleanliness 1", sL1\'ing on the walkway. According to URs. damage is especially noted on 1'-tOs, P,-t';'s and P ,()s, In the case of p-,8s. \\'alking willv-uillv on fillets instead of sta\'ing on w.ilkwav« will l'anse damage that results in Se\TIT buffeting of tail surfaces .it high speed. 8.17 Goes 124 Missions: Became a crew chief inst wouicln'! gile np. a B,j';' of the I :;th Air Force completed l:'.-t combat m issious and even then. instead of being rct ircd to the boucv.ucl. lI'as pn t ou t to pas, turc, performing tLliniu~ flights, The plane lias "Bachelors' Delight" and the persistent crew chid II';IS Sgt. \\'aino \\'. l\latiLrillen of Card ncr, .\Lr". "It's jnst .\LrtiLrinen's pighclcledness that's keeping t li.rt ] ';' in the .iir." a fell 01\' crew chid rcur.ukcd aft cr "Buchclor-.' Delight" n-t ur nccl with tin) engines shot out from the 1:'. 'rd mission. The glOnnd crew worked night and d;II' changing those two cngines .uul when the battle oreler lias annouurr-c] for the Jnly 19 "lid on an ordnance depot at .\ lunich old "Bachelors' Dclight" II;IS on the list. And she roared clown the ruuw.rv and soared into the air like a co eel illStcl;l of an old ladv with 1.010 combat flling hours. ' That ;lftclll
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~J 1 AIR FOftCES * OCTOBER 1944
Page 3 and 4: Rendezvous Who Is He? Dear Editor:
Page 5 and 6: [us: ,dlat is tIle AAI'I'DC~ It is
Page 7 and 8: oads and bridges and military imtal
Page 9 and 10: Here's how controllers direct the p
Page 11 and 12: sengcr and courier service in areas
Page 13 and 14: GET WISE Here are a few of the easi
Page 15 and 16: Airborne soldiers. shown here durin
Page 17 and 18: Smoke in background is fruin [up.ui
Page 19 and 20: It has pronounced step characterist
Page 21 and 22: TIIC{"II""IIIi; ;lItidc j, till' I/
Page 23 and 24: OCTOBER,1944 The first thing the a\
Page 25 and 26: YOUR ENEMY All ;Iirer;!ft fllillg o
Page 27 and 28: ->",i" .""tJnil'et hj/'- By Col. Do
Page 29 and 30: 28 011 BOll~aiIldk is quicklv unloa
Page 31 and 32: the plane landed, a jccp would driv
Page 33: THE PHiliPPINES DISTANCES SHOWN IN
Page 36 and 37: The economic system of the Philippi
Page 38 and 39: The AAF's homing pigeons are recogn
Page 40 and 41: Our aviation engineers had to fight
Page 42 and 43: ---- technique • -- - --- . RUNWA
Page 44 and 45: High Intensity Controlled Lighting
Page 46 and 47: Attached to a flyer's ear, the Oxim
Page 48 and 49: Automatic Pilot Trainer-A new train
Page 50 and 51: 3 5 7 Surprised by the friendliness
Page 52 and 53: TIM ELY A D V ICE FRO M THE A I R I
Page 56 and 57: SS I. You on the left, Buddy, appea
Page 58 and 59: ever .nrivc at a fir',t ~Iid stut i
Page 60 and 61: p:rinted on the outvi.lc wrt l: ,ih
Page 62 and 63: tanks and truck-borne infantry and
Page 64 and 65: FIGHTER CONTROL (Colltilltled from
Page 68 and 69: Property of tDe Library ARMY INDtJS
Page 70 and 71: For the Record I)e:lr h!Jtlll Rende
Page 72 and 73: he Allie's into German-held of the
Page 74 and 75: H Combat may make you Lazy By Maj.
Page 76 and 77: ..... -; ... The results of two yea
Page 78 and 79: Production charts show the disaster
Page 80 and 81: all key points of the factory's 3-+
Page 82 and 83: HE Fortresses T wings to the took o
Page 84 and 85: ';:'4"'~' .~~~c ~)'~ ~J ~~~ ~" . "
Page 86 and 87: 'l'h is was a YClr ago, but these a
Page 88 and 89: Pulling in His Ne-:I:. Reeelit de,c
Page 90 and 91: When a radio operator makes a mista
Page 92 and 93: Lifeline to the US,S R BY HERBERT R
Page 94 and 95: Ten o'clock of a December morning a
Page 96 and 97: THE MAN WITH THE PRIVATE BREEZE By
Page 98 and 99: THE AIR WAR IN THE SOUTHWEST PACIFI
Page 100 and 101: STANDARD FLIGHT INSTRUMENT PANEL E
Page 102 and 103: It 11c:l!,illg l.ot h sidc
Page 104 and 105:
, , ,CO:-iTI:-iUI:D ]'\o\\', pacbgi
Page 106 and 107:
technique ••• CO]\;Tl:"UED Ne
Page 108 and 109:
INSTRUMENT PANEL (Continued from Pa
Page 110 and 111:
LIFELINE TO THE US S R ( Cout iuucc
Page 112 and 113:
F\lr:RCF'\~CY FOUrp\lr:,\'T luvpcct
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50 COMBAT MAY MAKE YOU LAZY (Contin
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EN of the AAF-including the hundred
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.I In. ]~rhO:S-':cl the'mll-it:IIT
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August 7. Patton kept moving his he
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l'Iiavigation Training En Masse. Th
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"WE arc not going to bubble over wi
Page 126 and 127:
A wood block support; injured legs
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Burma. A Japanese light antiaircraf
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~ ~,C"= =~=.~7~~ ---,- .... _._. __
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HOW ,SHARP ARE YOU? A 'hoto Test of
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.. ' Back to the Philippines PART I
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Tacloban strip \\";IS not sC'ITicca
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All Tile Illftl, \\ ,(("d If iii, ,
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:lIe fbttle of Hrit.un. IC\i" intru
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Underground. ,'~ group of worried m
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volunteers between the agcs of II .
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I f By Capt. Greer Williams Air SlI
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Flaming debris (If njllI, ])1]]1:ll
Page 152:
ground fire the pilot should look f
Page 155 and 156:
two weeks: Cincinnati. one week: Pi
Page 157 and 158:
At 5.000 fed. the pilot opened the
Page 159 and 160:
cardboard bombs on their choice of
Page 161 and 162:
turn to Traffic Scction, Crcnicr Fi
Page 163 and 164:
Oil refineries arc gooel targets, T
Page 165 and 166:
Tile air campaign to choke off fuel
Page 167 and 168:
fallen into Allied hands, thus maki
Page 169 and 170:
Hamburg i lPolilz IMagdeburg 1 I r
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He's the guy who holds the life of
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46 V4ba\'s vnong V4itbtbis pictUfe1
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Page 182 and 183:
j ._3 Thirteen days after the 13th
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THE ABC OF D-DAY When an invasion i
Page 186 and 187:
By all AIR F( )RCl-: ()\"t'rsc;/s S
Page 188 and 189:
The fighters called for help and th
Page 190 and 191:
A jeep, laden with leftover explosi
Page 192 and 193:
THE ABC OF D-DAY t Cont inu.xl [r o
Page 194 and 195:
By Capt. E. E. Churchill co, isu. A
Page 196 and 197:
- ~ --'fftJMlGa ~II.I - , • - '--
Page 198:
We're more than 2,300,000 individua
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