Ask 21 Technical specifications

Flight Manual
Maintenance Manual
Repair Manual
Flight Manual
Maintenance Manual
Repair Manual

ALEXAⅣDBR SCHLE工CHER∴SEGELFLUGzEUGBAU
6416p。pPenhaueen／WaBBerkuppe，VestGernany
F∴LIG H 9∴∴∴M A N U AiL
for the 8ailplane model
A S K∴∴∴21
mismanual剛重電 alwayBbe￣carriedonboard！
It belongBtO the sailplane ASK21
Variant Data Sheet no．うう9
Regigtration no．：
Ownerii
Hanufacturer∴： Alexander∴Schleicher
Segelflugzeugbau
eL16poppenhausen／Wagserkupp
WeBt Germany
mis∴namalis the tranelation °f the German Ori−
ginalwhichisappr°VedbytheLBA（FederalOffic
OfCivilAeronautic8°ftheFed．Rep．°fGermany）
aBOperatinginBtructionB∴accordingtopara12 （1）とoftheGerman−LuftGerPOI（Aviati。nBquip−
meIlt 富eBtRegulation8）．
me transユationhagbeen∴donebybest knowledge
and judgement・InanycaBe the originaltextin
Germanlanguageis∴auth°ritative．
APRn1980Edition
1 1イ

CheckList／1
ーPreiFlidhit−Checkl
1．mainplnS∴Safetied？
2．iRear∴∴Wing∴attaChment plnS：is thesafetylock
Visibleabove thepin？
3．Hori2°ntaltail unit plnS Safetied？Is the
Springretainerengaged？
4．軋evat°r puShr°d connected？
Safetiedwitba∴Springclip？
This is∴n°t applicable forgliders∴Whichuse the
：autOmaticelevat°rC°nneCti°n！
5．Aileronpushrods c°nneCted？
Safetiedwith a springclip？
Don°t forget the・∴Sight contr°l through the
access hQle c°Ver！
6．Airbrake pushrods∴cOnneCted？
Safetiedwith aspring clip？
Do net forget．the sight contrQlithroughthe
access：hcle cover t
7．Check f°r f°relgn bodies！
Attention！
YithallHOPEI．L工ERquic葉一章eleaseJointsonemust be
able to touchthebalユpivotbyfeelingthroughthe
slotintheballs°cket．Chec重 tbe proper engage一一
nentofthe∴Safetylockbypushingitontoclose！
l醐脚6・10・87I

C H E C K l工S∴富／ 2
pre take °ff check
l． Parachllte connected to harne的？
2● Safety harness fagtened？
う． Airbrakeglocked？
4．Trinlever adjueted to a middle poBiti°n？
う． Alti面eter adjusted？
6．CanopieS cloBed andlocked？
Rear∴can°卵r ‖
7．∴Foェ・flight with only one occupent re孤OVe
rear back reB七 日
8．Put your toeS∴under the t。e一gtrap8 日
Do not natten the Btrap8 日
Danger°f janming the pedal8 日
、●
●

ASK21FiightManual
l．1Amendmentsrecord
Rev． No． 彦優帽BPage 認FR6GXｶR
1 要Vｶ末豸也Fw&X5Dﾄ蹂Cb12 XCHH5"
2 夫Vｶ末豸也Fw&X5Dﾄ蹂312 hCXC2
3 WFﾖFV妨fF$6跏V7F柳236a，36b， CC
TN−No。11 V6ｶ沫7Hフ二日
4 磐F貿F柳踐gFThv⑤ﾖ躔ﾈ210b 8C(Cィﾜｹ??｢
TN−N0−13
5 ﾖV襷ﾖV蹤gFTf末v⑤ﾖ躔210C HChCィ
TN−No．13a &FV妨FVBフ二つ
6 疲Wv6踟末6ｶ匁w7FVﾘ216a，17a， Sﾈ("
TN−No．15 S
7 誚XW坊ﾖV蹠FFTf末v③CheckiistI1，21， 8S.x2
Manuai，TN−No．20 f33f(S3r
8 疲Ww&GV7F柳W&妨7Fw&V坊6RAnnex xﾃﾈ(2
COuPlIngSforaerot°Wandwinch
aunch，TN−N0．21
9 V6ｶ匁v襷W6誚VgFW&ﾆ乏36b，37a，37b hｧb
rockerattheeIevat°raCtuatOrrOd，
TN−No．22
10 Wf柳踐gFTf末v⑤ﾖ躔213，15，25，26 XSdﾈ"
TN−No．23
11 VFFW&7GVFVF'蒙Vf襭16a＆21 v毘9
ever．TN−No．25lOPtional）
12 CﾃDﾈdFVﾆ觚&也7G'V7F柳Annex xSﾈ("
forthemaintenance，Rev．EO3194
13 埜⑦V柳踐g6W'fVﾆ貿V&W柳襪#43f HCXCb
operationh°urS，TNNo．29 冦m
Rev●nO′DateSigl能書∴∴嵩詰i霊 2

ASK21FlightManual
Rev． No． 彦友ﾆRPage 認FR6GW&R
Kaiser Apn80 2a

ABK21− mlght Ma踊al
1．2 cO調遥剛でS 辿詮
I． General l
工．1 AnenidnentB∴record 2
工．2 Contents う＋ 勾
I．う∴∴∴Deacription う
II・ OperatinglinitationB 6
重工．l AiNOrthineescategory e
I工●2 0peratl。nrangeClasBeg G
I工．う∴ quip鳳ent 7
重工．4 8peedB 8
I工．う∴∴1oad でactorB 9
I工．6∴Weight8 9
重工．7 In night c．g● 10
ェ工．8 veightandbalanceinfor圃ation lO
I工．9 雷ow∴releases 12
重工．10 Weaklinkintow∴r°Pe 12
I工●11IIirepregsuヱ・e 12
工工．12 Cro8g∴Wind 12
HI． B面ergencyprocedure3 13
HI．1 Recovery from∴spln8 13
HI．2 canopyenergency jettisoningand
energencybailout lう
IH．う mightBintherain 河
工I工．4∴vingdr°Pping lう
I重工．5 6roundlo°ping lう
エV． 相。rmal。pemti。nProcedures 16
IV．1 Cockpitand。peratingleverB 16−20
重V●2 DailycheckB 21
工V．う∴！註e takeoffcheck 23
工V．4∴∴富ake off 24
エV．う∴］旺ee flight 2ラ
工V．6∴Low∴BPeedflightandwingdroppin82う 鵠日課。e豊n；iight 楽
工V．9 AerobaticB 27一丸
IV．10 Approachandlanding うう
V． Rigglngandderigglng ラ6
V．1 Rigging うら
3 April1980 3

AsX21− might軸an 遊ﾂ
V．2 認W&坊V匁r Cr
V．う &ｶ匁r r
V．4 偬ﾈｶILIW'Bｲ
V．ラ &WfV蹤ﾇfX也FVR
Airspeedposition erェbo う9
Speed polar 0
Lubrication∴慮cheme 41
4 &姪塔 釘

A級21−mit曲も ぬnual
1．う DBSc農工耽ェ0Ⅳ
馳eASK2118∴a∴tti0−8eater eailplane 9lith ℡−tail．
fi篤ednose wheelanddivebrakeeonupper∴Ving．
皿e嘘ainlandinggearieeprung．
me BailplaneiBbi融ItinF最P−ea濃蘭ioh巾OnOcOque
〇°nstruction． エt即時be∴tlBed for∴Bchooland
hlgh perfor孤etnce flight容ae VellaB foraerobatic
OftheAi竃・worthineeeCateeorylA．
なech血calData
￡pan 17．00勘 （うう．乃 ft）
Lengtb 8．うう闘 （27，う8ft）
Helght l，ううの （う．08でt）
wingarea 17，9うm2 （192，95的●ft）
Aspectratio l1，1
Hax∴811−up曹eight 600kg （13201be）
転wingl。ading∴∴ラヴ，4kよ／H2（6．841bB／ee．it）
5 April19801 51

ASK21二 Flit恥t Manual
重工． OP関Ap重的G LlH重なIA重工0㍍S
重工．1 Al飛WO懸隔IⅣEgg CAでRGORで
Baeieofthe type−apprOValare theAirw°rthineBe
網Lequirenente forSailplanee∴andPoweredSailPlane
（Ⅲ超脱），iBeueOct．23．1973．with theAirw°rthi−
neSBcategory ●丸，（Acr°batic）．
重工．2 0PRRA曹エON RANGE CLASSES
me operation∴rangeclaggeeapProVed fo丈・thepari
ticular Bailplaneareindicatedby∴a dataやldciar
°n∴theinetrumentpanel（eee的aintenanc6㍍anual
page ）．DependlingOnthere印ectiveequip凪en
the 的ilplane∴圃息ybelicensed fortraffic forth
feIlowinB operation range claeBeei
1． Airv°rthineBsCategory ●UI（m工L工岬）
a．Accordingt°Ⅴ戴くduringdaylight）−
Withequip鳳entagperII．38．
b．CloudfliebtB．−：vith equipmentasper
重工．うaand 重工．うC．
2− AirverthineeaCategorylAI（Acr°batic）
一 種1thequipmentas∴perH・38元dH・うb
Or H．38．1工．うb and H．うc −
forthe folloWi的ae富ebatlcき 章
LooplStallでurnlgplltlSI・工鵬elnanin・
Slov Roll．工nvertedFlighte，Spin，Steep
ClinblngでurnlLazyEightlChand．elle・
6 April1980 6

AsK21ふ∴Fll鼻も龍anual
I工．う∴∴叡即劇恥劇岬
8． ㍍in．equipment
1．AirapeedindicatoruptOう○○k虞／h
2．Altineter
お 宮our−pleceBafetybarneBBforfr°ntand
reaヱ・seat
4．5eat cu血ione．atleiaetlOcn thickWhen
leaded，orperachute富（automatic°r
manual）
う．甘eightandbalclncedaもaplacard（front
andrear 8eat）
6．Dataplate
7．might 討anuali
b． BQuipnent∴for∴aerobaticg
互°r∴aer°baticB theabovemin．equlpment nust
be Bupplementedae f°llow露：
1．Additionalb°tto陣 8trap f°r theBafety
harneee
2．G−meter∴for∴front∴窟eat
う．F°otloopa on rudder pedaIe
4．parac心証e（auto調atic or nanual）
C． Eouipment for cloud flyiB虞
F°r cloud 曾lying theabove 腿in．equlpment
must be eupplenenteda魯 fcilow8：
1．Vario田eten
2．でurn and bankindicatoで
おlぬgneticcomPaee（co勘penBated）
4．vHFtransceiver radio
7 April198〇 千

ASK21−m．it孤も舶anual
重工．4∴∴∴B駁団塊鴻
職axigBeedcalmair V聴㌔）280km仙（151kte）
Ha暮らpeedr。ughair VB ＝ 20oknA（108ktg）
Kaxm蝕euVeringepeed V細 雪180km／h（卯kts）
舶axBPeedaer。t帥 Ⅴ卿 ＝重180k調布（97kts）
雌8peedwi的htow Vw e1うOkn／h（81kte）
Roughair∴nean患turbulence roundinWeVe−rotors．
Cn−clQudgld鴫t devils。rWhen・ski歴ningnOuntain
crestg●
蕊請書誓露。悪書誓書豊tb詩誌享ich
器。笥議書藍詩。○㌫…豊霊t書誌a誌烏￣
takeintoaccount that with∴increaBingaltitude
the tme alrBpeediBhigherthanthe readiや8°fthe
A・S・I・becauseofthedecreaeinBairdenel旬．
でmeairspeed（TAS）iB．howe瑠er，releVant∴forsafe−
tyagai的t Plutter．
崇嵩嵩謹蕊d華1g∴reducedaBfollowB∴ac−
Altitude （ゆ 0−2000車00巨00匡000車中
VNR＿indicated（ぬ布目280 上申2うう巨ラ9巨叫
Altitude （ft）巨00中0000車0∞申000
VNEindicated（kte）ilう日柄上申121
8 April1980 8

ASK21− might Hanual
粗eairepeedindicabor∴面uet ehovthe f°IIoving
〇°Ior cedeB∴：
Greenarc 80−180と放布 （巧−97ktg）
Yellowarc 180−280E紬′付し∴∴（197−1う1眈8）
Redradialline at 280km／h （atl31kts）
relloWtnangle at 90kn，砿 （at48．うkte）
ェI．う∴∴∴LOADiFACpQ賎
me f0110Wingload factore∴劇ust∴n°tbe exceeded；
atn嘱目℡euVeringBpeedVK ←8・う ー4・0
atmaxBpeed V臆 ＋う，う∴∴■づ，0
witb airbrakeBeXtended ＋3．5∴∴∴十〇
6−metermarkingsi
員． pegitive range
yelloW∴arc ＋5，3to＋6．う
red章adialline at＋6，5
b． negatiVe range
78110曹∴arc う，Ot0−4．0
redradialline at−4．0
重I．6∴∴∴鞠脇重GRでs
Enpty∴曹eight apprQX．う60kg （7921bs）
㍍a義al1−や∴Ueight 600kg （13201be）
甑曲t Weigbt of∴nonlift
pr°ducingmenber8 両Okg （9041bs）i
9 April1980 9

ASK21−Fligbt ぬnual
エ重．7 重ⅣFLエGHでC．G●
露ein flight c●箆．mngeiB from2う厄n to469腿
behind dat調（9．21日t018，15−−）i
correspondinglr∴20，2㌶upも。41，1％。f the mean
aerodynanic chord，
t∴∴ロ1．121圃（デ68，リith a＝8蘭（0，32−D behind
諸寄gleading edgeiinner血ng雪datum p。int・
重工．8 WBfGHpiAND BALANCB 重NFOR的A雷1°Ⅳ
耽りpayload front Beat 70kg （1うAibB）
Ⅲax payload front∴eeat llOkg （2421bB）
Ka葉∴payload rear∴8eat∴∴110kg （2壇lbe）
BaggageinwingrootI日的iX−2Ⅹ10kg（2X221bg）
鵬ither the all up的ight of600kg（13201be）
nor the廓aX∴Weight of non−Iift producing memberB
十°ccupante＆baggage of410kg（9041b8）nu恩t
be exceeded．
嘗he weightlinitationg∴on the baeie of the壇畦
ユeighi軸are t。be f。und on∴pagell！
Wlth∴thisloading theinでli虚lt c・g・iBin the
permieeible rang〇・
Lov∴Weightin the Sront seBt剛Bt be compensated
by flxed ballaet・
10 A戴Ih1980 イ0
●
●

A S K 21 − Flight Manual
T工．WE工GHで ＆ BALANCE 工NFO削A重工ON
Max．payload front seat（pilotincl・
parachute）：2421bs∴＝110kg
Min．payload front seat（pilotincl．
parachute）：1う41bs ＝ 70kg
08−ution：∴Shortweightinthefrontseatmust
becompensatedbyballaSt（installationof
Iead diSCSin the n°Sei
11eaddisc ＝∴2，761bspilotweight）．
Numberoflead Mln．payloadfront seat
discS 婿ﾆ'2
0 都C*CHH*C"
1 田3x*H*CCSr
2 田xH*H緯CC
う 田h3#XCh3b
4 塗*H3ﾍﾘ8*C
ラ 塗vsXｩ{ﾃ8*CB
6 田(3X3x3s
7 田C(*H*H*H32
8 田33(3#
9 CCx*H#8*C"
10 鉄x3X#hCsr
11 H.x3#X#H3
12 H*HC#C#R
Max．payloadrearseat 〈pilotincl・parachute）；
2421bs∴二 110kg．
1kg∴＝∴2．204622うlbS
10t June1984 TN no．1〕0 10〔
●

AgK21−Flight馳nual
ヽ書 ○ ●禽 orlO 農〇・〇 ；・♪■● ・ljoくず Qee 急患曾葛 ．rl口iロjp tQ・√I●10 
0 1■ Q∴つ ．寄．コ ●十〇 も」 ．讐∴○∴持 田∴鴫 ◆｝i▼119− ti Oe u）1n o hr1 億∴裏）角 Odi。■ i薯pl畠 
o ∞一審 ．01つ く謹 上年rl∴％ o∴〇 〇〇震∴畠 寄。Hi−＿＿ o oで） 缶 ＋｝〇 日l○ ○＞）真 義∴鵡・H h●ip．甘 
dO o′〇 〇 ・p・▼1 患烏 ・〃1．0 0 番●（ h蔦葛 霜清 畠je 
ea q○○） 〇番jo ．itIi白 olol京 ＋）・l」∴rl 虐3g 
11 Apri11980 イイ

ABK21−nl粗t ㍍anual
工工．9∴∴∴90Wi遡彊●BASBS
Foraerotov inoge releaseE7う
For∴Winchtow∴！∴塵afetyreleeLeeEuiopaG73
重1．10 鵬AK Lエ撤IⅣ∴pOW，取OPE
Aerot°W maX．600ご 60 daN
Winchtow∴∴∴naX．10001二貞00da諏
重工．11 HRE P買電SsuRE
Kainwheelう．00−3；∴2，7bar
馴oBeWh8614．00−4ii∴2，Obar
Ta＝∴wheei 210×65 2．5 bar
重工．12∴∴c戚0gSHェ榔D
mepernigsiblecr°eeVlndcenponentleab°tltlうkn／．
（8knotB）．
珍 June1983 TN．NoB イ2

塵JSIC∴21 FlightManual
工II．ⅢⅢ瀧田WYP耽EⅢmI麗
HI．1 醐閲SPnl
Ac∞rding to the stmdard pnocedllre Spinnlngis teminated as
follows：
1．Applyopmi丸terudder（1．e．appIYmdderagainstthedirectim Of
rotationofthespin）．
2．釦のrt u雌emOldcontrolinputsforakPutl／2spintum）・
Waming；l）isregaIdingthepausewillresultinslowerrecovery！
3．Release stick（1．e．giveintothepressureofthestiick）mtil
tllerOtationstopsandsomdairHowisestablishedagain・
附ming：FdIforwardstick鴨yretardorevenpreventthere∞VerYi
4．Centraliserudderandallowgailplanetodiveout．
mealtitiudelossfromthebegimingof the redoverylmtilthe
nomalfli如tattimdeisregainedisabout80肥ter（260feet）．
Note：DLming∴SplnStheASK210SCillatesinpitch．fT鋤IaSteepnOSe
downsplnneCOVeryaC∞rdingtothestandard pr∝edureis∴up
toltum，fmaflatspinlessthanlturn．
III．2（報雌鳳隅鮒ⅢG郎隔日圃四隅 YBBⅡLqH
＿旦塾迫＿監理塑Yia．Moveleverwithredknoba10Vetheinstnm樹Itpan−
eltotheleftandpusIC別mpylUWards．
b．Cq〕enSafetyhamess．
C．Getupandbailout．
d．Withm馳malclmteseizereleasegrlpand pullout
entirelyafterlto3se∞mds．
TN23Jan．9lWalbell∴KAlB。．Ap，1180 LBA−13 ∧書目p．

Ag膿21− nlght anual
Bear canoDy∴；∴種．Ptlllba°kboth canopy eidelocke
andpuBhcanepyupWarde●
b．0要）en∴Bafetyharnegs・
C．Gec upandbail°ut．
d● 瞥ith manualchuCe eeiBe releage
grlやandpulloutentirelyafter
1−3 8econdB．
工fcircunBもanceBallov．the front pilot ehould81−
lowtherearpilott°bailoutfiret・ 工重工．う∴∴EufQHpStNⅢIE爵A工N
Vith wet o重● sllghtlyiced￣Winge °でinBect acCunu一
lation there willbe n° deteriorationin flight
characte旗泣icS．
HoWeVer．°nehastoreckon∴Witharatherc°naider−
able dete蒙・iorationin flight perf°rmance● miBmuSt
betakenintoaccount egpeciallyonlanding final
approach 日
Addasafetyma重・ginoflOknA（う．4knots）for
apt）重・oacb sDeed ＝
14 April1980 イケ
●

A．SK 21 FlightManual
I工I．4∴Wm肥DK肝P：馴贈
me sailpl劃e Stalls∴∴eXtr削∋lYb醤lign・Neverthelessonealwayshas
tofacethelmSSibilityofwlngdropping比cause of turb血ence・In
that case push stickforwardim帳妃iatelyandamlyoppositemlder
agalnStanOticeabletumatthesameti隙tOregalnanOmlflighti
attitude．工f therudderdeflectionagainstthetumisforgotten，a
spinmayoccurevenifthestickpressureisreleased・
TI工．5 6脚①1原職Ⅱ㈱
FornoHnalconditions，SmOthrmway．shortgrass，memY take off
with the wi的∴cmthegrmdwithouthavingtofearachangeinthe
direction．
Highgrassandroゆgromd．hcwever，myCauSe grOlmdl00plng・In
thatcasereleasethetowr〇時i軸IT由iately．
∴∴∴：「∴：「：；i∴∴∴占∴高言