VELOS ROTORS VELOS 880 User manual


















880 – CONTENTS
0.1

880INTRODUCTION&SPECS
Introduction……………………………………………………………………………………………………………………………...............INTRO‐1
Specifications………………………………………………………………………………………………………………………………………... INTRO‐1

880SAFETYINSTRUCTIONS
Explanationofpictogramsused…………………………………………………………………………………………………………....SAFETY‐1
Importantnotesonsafeoperation‐flyingofthehelicopter…………………………………………………………………..SAFETY‐2

880GENERALINFORMATION
Threadlockingagents……………………………………………………………………………………………………………………………INFO‐1
Threadfasteners……………………………………………………………………………………………………………………………………INFO‐1
Itemsrequiredforcompleting&operatingVELOS880………………………………………………………………………….INFO‐2
Tools,adhesives,lubricants…………………………………………………………………………………………………………………..INFO‐2

880FFRAMEASSEMBLY
880F01–SKIDSASSEMBLY…………………………………………………………………………………………………………………….F‐2
880F02–FRAMERASSEMBLY……………………………………………………………………………………………………………….F‐3
880F03–FRAMELASSEMBLY……………………………………………………………………………………………………………....F‐4
880F–FRAMEASSEMBLY………………………………………………………………………………………………………………………F‐5

880DDRIVETRAINASSEMBLY
880D0101–AUTOROTATION………………………………………………………………………………………………………………..DT‐2
880D0102–BELTTENSIONERASSEMBLY………………………………………………………………………………………………DT‐3
880D0103–FRONTTAILPULLEY37THDT3……………………………………………………………………………………………DT‐4
880D01–BASEPLATEASSEMBLY………………………………………………………………………………………………………….DT‐5
880D02–SERVOPLATEASSEMBLY……………………………………………………………………………………………………….DT‐13
880D–DRIVETRAINASSEMBLY…………………………………………………………………………………………………………….DT‐19

880HADVANCEHEAD
880H01–ROTORHUBASSEMBLY………………………………………………………………………………………………………….AH‐2
880H02–BLADEHOLDERASSEMBLY…………………………………………………………………………………………………....AH‐5
880H–ADVANCEHEAD………………………………………………………………………………………………………………………...AH‐6
880H03–LINKAGEARM………………………………………………………………………………………………………………………..AH‐9
880H06–LINKAGEARM53……………………………………………………………………………………………………………………AH‐9
880H04–SWASHDRIVER………………………………………………………………………………………………………….............AH‐11
880H05–SWASHPLATE…………………………………………………………………………………………………………………….....AH‐15

880TTAILASSEMBLY
880T01–TAILPULLEY……………………………………………………………………………………………………………………………T‐2
880T03–SLIDERROTORASSEMBLY………………………………………………………………………………………………………T‐3
880T04–TAILCASEASSEMBLY……………………………………………………………………………………………………………… T‐8
880T05–TAILBLADEHOLDERASSEMBLY……………………………………………………………………………………………..T‐12
880T02–TAILROTORASSEMBLY…………………………………………………………………………………………………………..T‐13
880T–TAILASSEMBLY………………………………………………………………………………………………………….................T‐16

880STAILSERVOASSEMBLY
880S–TAILSERVOASSEMBLY……………………………………………………………………………………………………………….S‐2



880 – CONTENTS
0.2

880BBOOMASSEMBLY
880B01–RUDDERROD…………………………………………………………………………………………………………………………B‐2
880B–BOOMASSEMBLY………………………………………………………………………………………………………………………B‐3

880FINALASSEMBLY
880–FINALASSEMBLY………………………………………………………………………………………………………………………....V‐2
880–MOTORPULLEYALIGNMENT……………………………………………………………………………………………………….V‐7
880–INSTALLATIONOFTHEESCs&RPMSENSOR………………………………………………………………………………..V‐8
880–INSTALLATIONOFFLYBARLESSCONTROLUNIT&RXUNIT…………………………………………………………..V‐9
880–INSTALLATIONOFTHEBOOM………………………………………………………………………………………………….....V‐10
880–TAILALIGNMENT………………………………………………………………………………………………………………………...V‐12
880–INSTALLATIONOFTHE4LINKAGEARMS53…………………………………………………………………………………V‐13
880–INSTALLATIONOFTHESWASHPLATESERVOS…………………………………………………………………………….V‐14
880–ADVANCEHEADALIGNMENT………………………………………………………………………………………………………V‐17
880–TAILSERVOADJUSTMENT……………………………………………………………………………………………………………V‐18
880–BOOMFINALADJUSTMENT…………………………………………………………………………………………………………V‐20
880–ESDMODIFICATION……………………………………………………………………………………………………………………..V‐21
880–INSTALLATIONOFTHETAILBLADES……………………………………………………………………………………………. V‐22
880–INSTALLATIONOFTHEMAINBLADES…………………………………………………………………………………………..V‐23
880–INSTALLATIONOFTHEBATTERIES………………………………………………………………………………………………..V‐24
880–INSTALLATIONOFTHECANOPY……………………………………………………………………………………………….....V‐25
880–GEARINFORMATIONTABLES&SUGGESTEDSETUP…………………………………………………………………….V‐26
880–MAINTENANCE&POSTFLIGHTINSPECTION……………………………………………………………………………….V‐26
880–ANGULALBEARINGSMAINTENANCE……………………………………………………………………………………………V‐27
880–WIRINGEXAMPLE…………………………………………………………………………………………………………………........V‐28

880EXPLODEDVIEWS
880F–FRAMEASSEMBLY………………………………………………………………………………………………………………………EV‐1
880F01–SKIDSASSEMBLY…………………………………………………………………………………………………………………….EV‐3
880F02–FRAMERASSEMBLY……………………………………………………………………………………………………………….EV‐4
880F03–FRAMELASSEMBLY………………………………………………………………………………………………………………..EV‐5
880D–DRIVETRAINASSEMBLY…………………………………………………………………………………………………………….EV‐6
880D01–BASEPLATEASSEMBLY………………………………………………………………………………………………………....EV‐7
880D02–SERVOPLATEASSEMBLY……………………………………………………………………………………………………….EV‐8
880H–ADVANCEHEAD…………………………………………………………………………………………………………………........EV‐9
880H01–ROTORHUBASSEMBLY………………………………………………………………………………………………………….EV‐10
880H02–BLADEHOLDERASSEMBLY…………………………………………………………………………………………………….EV‐10
880T–TAILASSEMBLY…………………………………………………………………………………………………………………………..EV‐11
880T04–TAILCASEASSEMBLY……………………………………………………………………………………………………………… EV‐12
880T02–TAILBLADEHOLDERASSEMBLY……………………………………………………………………………………………..EV‐13
880T06–TAILROTORASSEMBLY…………………………………………………………………………………………………………..EV‐13
880B–BOOMASSEMBLY………………………………………………………………………………………………………………………EV‐14
880S–TAILSERVOASSEMBLY……………………………………………………………………………………………………………….EV‐15

880SPAREPARTSCATALOGUE
880–SPAREPARTSCATALOGUE…………………………………………………………………………………………………………..SP‐1


880 – INTRODUCTION & SPECS
INTRO‐1

Introduction
ThankyouforpurchasingVELOS880helicopter.Pleasereadthisinstructionmanualcarefullybeforeassemblingthe
modelandfollowallrecommendationsandprecautionslocatedinsidethismanual.Pleaseretainthismanualfor
futurereference,maintenanceandtuning.VELOS880isahigh‐endhelicopterdevelopedbyVELOSROTORS,
providingreliability,flyingstabilityandfull3Dflyingcapability.VELOS880isnotabeginner’shelicopter!
WehopeyouenjoyyournewVELOS880helicopter!


Specifications
















□Length:1566mm□Mainrotordiameter:1900mm
□Height:385mm□Mainbladelength:850mm
□Width:295mm□Tailrotordiameter:360mm
□Takeoffweight:~9,5kg□Tailbladelength:140mm
□Maingearratio:10.33÷1□Tailgearratio:5.60÷1

1566mm
385mm
360mm
295mm


Ex
p






p
lanationof
p







*
p
ictograms
u
Dange

Warni
n
health

Dange
injury.
880o
r
adjust
m
motor
main
&

Impor
t


Mater
separ
a

u
sed
r!Riskofde
n
g!Riskofd
,environme
r!Riskofde
Beforewor
k
r
performing
m
entsdisco
n
batterieso
r
&
tailblades
.
t
antnote.
ialstobepu
a
tely.
a
thorinjur
y
amageto
ntandprod
u
a
thorserio
u
k
ingonVEL
O
any
n
nectthe
r
removebo
t
.

rchased
y
.
u
ct.


u
s
O
S
t
h






88
0





















S
H
G
R
C
0
– S
A
F
E
ApplySoft
/
agent.
(e.g.Loctit
e



ApplyHigh
agent.
(e.g.Loctit
e



ApplyReta
i
(e.g.Loctit
e




ApplyGrea
(e.g.highp
synthetic
g



ApplyCyan
adhesive.



Correctass
Incorrecta
s

Danger!
R
theproduc
t
E
TY INS
T
/
Mediumlo
c
e
243)
strengthlo
c
e
272)
iningcomp
o
e
648)
se.
p
erformance
g
rease)
n
oacrylate
s
embly!
s
sembly!
R
iskofda
m
t!
T
RUCTI
O
SAF
E
c
king
c
king
o
und.
m
aging

O
NS
E
TY‐1


880 – SAFETY INSTRUCTIONS
SAFETY‐2

Importantnotesonsafeoperation‐flyingofthehelicopter
‐Warningsandcautionsregardingtheproceduresshouldbeobservedtoavoidpossiblephysicalhazardsand
seriousaccidentsthatmayoccurduringassemblyandflying.
‐VELOS880helicopterisnotatoyandcanbeverydangerousifhandledincorrectly.
‐VELOS880helicoptermustonlybeoperated,servicedorrepairedbyexperiencedpilots.VELOS880ISNOTA
BEGINNER’SHELICOPTER.
‐Alwayswearsafetyglassesandtightbuteasy‐to‐moveclothesandtakeallappropriatesafetyprecautionswhen
flyingVELOS880helicopter.Don’twearnecklaces,braceletsoranyotherthingswhichyoucouldgetcaughtwith
thehelicopterorthetransmitter.
‐Lackofcarewithassemblyormaintenancecanresultinanunreliableanddangerousmodel.
‐Alwaysunplugthepowerconnectorsbeforeperforminganymaintenance,cleaningandrepairwork.
‐Damagedwiringorincorrectpolarityconnectionsmayleadtosparksforming,fire,destroyedelectronic
componentsor/andhelicoptercrash.
‐Regularservicingandinspectioninaccordancewiththedetailsprovidedinthisinstructionbookisessentialto
keepthehelicopteroperatingreliably.
‐VELOS880helicoptermustonlybeusedinopenspaceswithoutobstacles,andfarenough(atleast50meters)
frompeopletominimizethepossibilityofaccidentsorofinjurytopropertyorpersons.DonotflyVELOS880
helicopternearroads,electriclines,cars,schools,hospitals,byariverorseashore.Flyonlyinareasdedicatedto
theuseofmodelhelicopters.
‐PartsoftheVELOS880helicoptercangetextremelyhotduringaflight,andspecialcareshouldbetakentoavoid
burns.
‐Keepasafedistanceofatleast20metersbetweenyouandthemodelwhenflying.
‐Rangechecktheradiobeforethefirstflight.Theservosmustoperateproperlywithpowerreductiontestingata
rangeofatleast50meters.
‐ThefollowingpersonsorthoseinthefollowingphysicalconditionsshouldneveroperateVELOS880helicopter:
oPersonswhohavenoexperienceofR/Chelicopters.
oPersonsunderinfluenceofmedicine,alcoholordrugs.








NeitherVELOSROTORSLLCnoritsagentshaveanycontrolovertheassembly,maintenanceanduseofthis
product.Therefore,noresponsibilitycanbetracedbacktothemanufacturer.YouherebyagreetoreleaseVELOS
ROTORSfromanyresponsibilityorliabilityarisingfromtheuseofthisproduct.



880 – GENERAL INFORMATION
INFO‐1

Threadlockingagents
Undersomeconditions,specialchemicalcompoundscalledthread‐lockingagentsareneededtohelpthreaded
fastenersdotheirjob.Thread‐lockingagentscanbeusedwherevibrationwouldcausethefastenertoloosen.These
compoundsareanaerobicadhesivesthatsetupintheabsenceofair.Theseproductscomeinseveralgrades,
dependingonthedesiredstrength,withthemostpopularbeinghigh‐strengthredandsoft/medium‐strengthblue.
Considerthefollowingwhenusingthreadlockingagents:
Applicationofalockingagentincreaseslooseningtorque.Takecarenottodamagethebolt/screwduringremoval.
However,sometimesheat(usingaheatgun)isneededtosoftenthematerialwhenhigher‐strengthcompounds
areused.
Beforeapplyingthelockingagent,cleanoffalloiland/orresidualadhesiveremainingonthethreadsanddrythem
completely.
Applyingasmallamountofadhesivetotheendofthebolt/screwthreads(approx.2mm)distributestheadhesive
asit’sthreadedin.
Excessiveadhesivemay,duringloosening,damagethethreadorcausethebolt/screwtobebroken.Locking
agentsmaycauseplasticpartstocrack.
Donotuselockingagentsinplasticpartsandsafety(torque)nuts.

Threadfasteners
Hereareafewtipswhenworkingwiththreadedfasteners:
Beforeassemblyalwayscleanbolts,screws,andthreadsandblowthemdry.Dirtorforeignmatterunderthehead
oronthethreadswillpreventapropertorquefrombeingapplied,leadingtoloosening.
Donotlubricatefastenersunlessspecifiedinthemanual.
Boltorscrewlengthscanvaryfordifferentpartsandassemblies.Thesedifferentlengthsmustbeinstalledat
correctlocations.Ifyou’renotsure,placethebolt/screwonthecorrespondingimageatthebottomofeachpage
andcomparetheexposedlengths.Eachshouldbeexposedthesameamount.
Beforeanyreassemblyprocess,threadedfastenersmustbeinspected,cleaned,andifitisnecessaryreplacedby
newtoensurenormalfunctioningandflying.
Topreventwarpingimportantcomponentsandensureproperassembly,torquetomultiple‐sizedfastenersshould
beappliedkeepinginmindthefollowingpoints:
Tightenallfastenerstohand‐tight.
Torquetheboltsinsequencetothehalftorqueandthenrepeatthesequencetothefulltorquetoprevent
componentdamage.
Ifnosequenceisgiven,torquescrewscrosswiseanduniformly.

Importantnote
Donotopenallthebagsatonce.Therearestickersoneachbagthatcorrespondtoeachassembly.








880 – GENERAL INFORMATION
INFO‐2

Itemsrequiredforcompleting&operatingVELOS880
DESCRIPTIONQTY.
Brushlessmotor………………………………………………………………………………………………………………………………………………2
700classbrushlessmotorsapprox.500KV,6mmshaftdiameterand30mmspacebetweenitsmounting
holes,minimumshaftlength30mm. 
ESC………………………………………………………………………………………………………………………………………………………………….. 2
HV100AmpESCormore. 
Flybarlessunit………………………………………………………………………………………………………………………………………………….1
Flybarlessunitsupporting4servos90oswashplate.
Servoforswashplate………………………………………………………………………………………………………………………………………4
Standardsizehighquality,highvoltageservosarebeenrecommendedinordertooperatedirectlyfroma2S
batteryandsimplifytheinstallation.
11kgoftorqueormoreisrecommended.
Servoforrudder................................................................................................................................................1
Standardsize(highqualityfastrudderservo)&rudderservoextensioncable.
Radiocontrolunit……………………………………………………………………………………………………………………………………………1
7chormorehelicopterradiocontrolsystemwithfullrangereceiverorsatellitescombinedwiththe
flybarlessunit.
LiPobatteries6s3500‐5000mah(35cormore)forthemainmotors………………………………………………………………4
VELOS880usestwoindependentsetsofbatteriesatthesametime.Thefirstsetofbatteriesisresponsible
forpoweringthefirstbrushlessmotorandthesecondsetthesecondmotoraccordingly.Eachbatteryset
consistsoftwo6Spacksconnectedinseries.
LiPoorLiFebatteryforreceiver(2s3000mah20c)………………………………………………………………………………………….1
BECmustberatedadequatelytohandle5servos.RedundantbackupsystemrecommendedforBECset
ups.
Governor…………………………………………………………………………………………………………………………………………………………1
UseofagovernorisrecommendedwiththeVELOS.ItispossibletouseeithertheFBL’sgovernororthe
governorsbuiltintotheESC.
RPMSensor……………………………………………………………………………………………………………………………………………………..1
WhenusingFBL’sbasedgovernors,onlyasinglesensorisrequired. 
Tools,adhesives,lubricants
□Balllinkpliers□Soft/mediumlockingagent(e.g.Loctite243)
□Genericpliers□Highstrengthlockingagent(e.g.Loctite272)
□Needle‐nosepliers□Retainingcompound(e.g.Loctite648)
□Hexagonaldrivers,size1.5,2.0,2.5,3.0,4.0mm□Cyanoacrylateadhesive
□Socketwrenches,size5.5,7.0,8.0,13.00mm□Epoxyadhesive(oponal)
□PitchGauge□Greaseforbearings
□Bladebalancer(oponal)□Highperformancesyntheticgreaseforthemetalgears
□Scissors



880 – NOTES































880FFRAMEASSEMBLY

















880F
F‐2

880F01–SKIDSASSEMBLY
ITEMNO.DESCRIPTIONQTY.
1BOTTOMPLATELOW1
2SKID2
3HEXSOCKETBUTTONHEADSCREWM4x1212
4TORQUENUTM412
5SKIDREINFORCEMENTR1
6SKIDREINFORCEMENTL1
7SKIDREINFORCEMENTINNER2







…………………………..(x12)
 ……………………………....(x12)





880F
F‐3

880F02–FRAMERASSEMBLY
ITEMNO.DESCRIPTIONQTY.
1FRAMER(vp0050)1
2BATERYBASEBACK2
3HEXSOCKETBUTTONHEADSCREWM3x64
4BATTERYTRAYR1
5HEXSOCKETCOUNTERSUNKHEADM3x84









………………………………..(x4)
………………………………..(x4)
Notes:
‐Applysmallamountsoflockingagentwhereindicated!


880F
F‐4

880F03–FRAMELASSEMBLY
ITEMNO.DESCRIPTIONQTY.
1FRAMEL(vp0060)1
2BATERYBASEBACK2
3HEXSOCKETBUTTONHEADSCREWM3x64
4BATTERYTRAYL1
5HEXSOCKETCOUNTERSUNKHEADM3x84









………………………………..(x4)
………………………………..(x4)
Notes:
‐Applysmallamountsoflockingagentwhereindicated!


880F
F‐5

880F–FRAMEASSEMBLY–EXPLODEDVIEW
ITEMNO.DESCRIPTIONQTY.
1SKIDSASSEMBLY1
2CANOPYLOCK1
3BOTTOMPLATE1
4HEXSOCKETHEADSCREWM4x162
5HEXSOCKETHEADSCREWM4x121
6TORQUENUTM45
7FRAMERASSEMBLY1
8HEXSOCKETHEADSCREWM4x66
9FRAMELASSEMBLY1
10ESCBASE6
11ESCPLATE1
12HEXSOCKETCOUNTERSUNKHEADM3x830
13HEXSOCKETBUTTONHEADSCREWM3x623




880F
F‐6

880F–FRAMEASSEMBLY–EXPLODEDVIEW
ITEMNO.DESCRIPTIONQTY.
14BATTERYTRAYSUPPORT2
15FRAMEBRACE1
16RECEIVERBASE1
17RECEIVERPLATE1
18BATTERYTRAYFRONT1
19BOOMSUPPORT2
20HEXSOCKETHEADSCREWM4x702
21BOOMRELEASE1
22HEXSOCKETCOUNTERSUNKHEADM3x101
23TORQUENUTM31
24ESCSMALLPLATE1
25SOCKETSETSCREWM3x202
26CANOPYPOST2




880F
F‐7

880F–FRAMEASSEMBLY
ITEMNO.DESCRIPTIONQTY.
1SKIDSASSEMBLY1
2CANOPYLOCK1
3BOTTOMPLATE1
4HEXSOCKETHEADSCREWM4x162
5HEXSOCKETHEADSCREWM4x121
6TORQUENUTM43








………………………….(x2)
…………………………...(x1)
 …………………………………(x3)



880F
F‐8

880F–FRAMEASSEMBLY
ITEMNO.DESCRIPTIONQTY.
7FRAMERASSEMBLY1
8HEXSOCKETHEADSCREWM4x66
9FRAMELASSEMBLY1











………………………………(x6)
Notes:
‐Applysmallamountsoflockingagentwhereindicated!




880F
F‐9

880F–FRAMEASSEMBLY
ITEMNO.DESCRIPTIONQTY.
10ESCBASE3
11ESCPLATE1
12HEXSOCKETCOUNTERSUNKHEADM3x86











………………………………..(x6)
Notes:
‐Applysmallamountsoflockingagentwhereindicated!




880F
F‐10

880F–FRAMEASSEMBLY
ITEMNO.DESCRIPTIONQTY.
13HEXSOCKETBUTTONHEADSCREWM3x66













………………………………..(x6)
Notes:
‐Applysmallamountsoflockingagentwhereindicated!

