Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005...

12
Copyright 2005 Thomas A. Jacoby and WarbirdKits.com Construction Manual for Yakovlev Yak-9D Materials This kit contains the following materials: This construction manual Plan sheet Decal sheet Laser-cut wood pack Plastic canopy Plastic cowl Plastic cowl scoop Plastic radiator scoop Plastic machinegun blister Plastic exhausts To complete this kit, you will need the following additional materials: 3/32” Aluminum tubing, 3” 1/16” Music wire, 20” 1/16” x 4” x 15” Balsa sheet for wing and fuselage skin, 5 each 1/4” Balsa triangle stock, 12” long 1each 1-1/2” Spinner (Goldberg or DuBro) Pink foam for fillets 1each Wing mounting bolt Hinges (ailerons, elevator) Miscellaneous servo mounting materials and pushrods Glue, covering materials and paint 6-Volt Speed-400 power system

Transcript of Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005...

Page 1: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

Construction Manual

for

Yakovlev Yak-9D

Materials

This

kit c

onta

ins t

he

fo

llow

ing m

ate

rials

:

This

co

nstr

uctio

n m

anua

l

Pla

n s

heet

Decal s

heet

Laser-

cut

wo

od p

ack

Pla

stic c

ano

py

Pla

stic c

ow

l

Pla

stic c

ow

l sco

op

Pla

stic r

adia

tor

sco

op

Pla

stic m

achin

eg

un b

liste

r

Pla

stic e

xha

usts

To

co

mple

te t

his

kit, yo

u w

ill ne

ed t

he f

ollo

win

g a

dditio

na

l m

ate

ria

ls:

3/3

2”

Alu

min

um

tubin

g,

3”

1/1

6”

Music

wire,

20”

1/1

6”

x 4”

x 1

5”

Ba

lsa s

heet fo

r w

ing a

nd f

use

lage s

kin,

5 e

ach

1/4

” B

als

a t

ria

ng

le s

tock,

12

” lo

ng

1each 1

-1/2

” S

pin

ner

(Go

ldberg

or

DuB

ro)

Pin

k fo

am

fo

r fille

ts

1each W

ing m

ounting b

olt

Hin

ges (

aile

rons, e

levato

r)

Mis

cella

neo

us s

erv

o m

ounting m

ate

ria

ls a

nd p

ushro

ds

Glu

e, co

veri

ng m

ate

ria

ls a

nd p

ain

t

6-V

olt

Speed

-400 p

ow

er

syste

m

Page 2: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

2

Construction

Wing Skins

Each w

ing b

otto

m s

kin c

onsis

ts o

f th

ree

laser-

cut

pie

ces: fo

rward

, ce

nte

r a

nd a

ft. G

ently c

lea

n u

p t

he

mating e

dges o

f th

e p

ieces w

ith 2

20 g

rit pap

er

on a

sandin

g b

lock.

Lay t

he p

ieces o

f a w

ing s

kin o

n a

fla

t bo

ard

or

tab

le,

with t

he o

ute

r surf

ace u

p. R

un a

le

ngth

of

maski

ng

tape

alo

ng t

he jo

in lin

es. T

urn

the

assem

ble

d s

kin o

ver,

be

nd t

he jo

ints

ope

n,

and r

un a

bead

of

alip

hatic r

esin

or

wo

od g

lue d

ow

n t

he jo

ints

.

Lay t

he a

ssem

ble

d s

kin b

ack d

ow

n o

n t

he

bo

ard

maski

ng ta

pe s

ide d

ow

n. R

un a

dam

p p

aper

tow

el o

ver

the jo

ints

to

re

mo

ve e

xcess g

lue. P

lace a

she

et o

f w

ax

paper

over

the a

sse

mb

led s

kin. T

he

n w

eig

ht it d

ow

n

with a

no

ther

bo

ard

, bo

oks

or

what

have y

ou. K

eep

the

weig

ht o

n t

he s

kin u

ntil i

t is

co

mple

tely

dry

.

Whe

n t

he s

kin is d

ry,

rem

ove t

he m

aski

ng t

ape.

Lay a

ski

n o

n a

fla

t bo

ard

with t

he o

ute

r surf

ace u

p, a

nd s

and

it s

mo

oth

with 1

20 g

rit p

aper

on a

lo

ng s

andin

g b

lock.

Be s

ure

to

keep y

our

sa

ndin

g m

otio

n a

t a 4

5 d

egre

e

ang

le to

the jo

ints

and w

oo

d g

rain

. C

lea

n t

he

ski

n w

ith

a tack

rag.

Note

– it sho

uld

no

t b

e n

ecessary

to

sa

nd t

he inner

surf

aces o

f th

e w

ing s

kin. Just

be s

ure

to

rem

ove a

ny

exc

ess g

lue.

Fo

llow

the s

am

e s

teps to

assem

ble

tw

o w

ing t

op s

kins,

usin

g t

he s

upp

lied 1

/16

” x

4”

x 15”

ba

lsa s

heets

.

Lay a

bo

tto

m s

kin o

n a

to

p s

kin.

Tra

ce t

he

shape

of

the

bo

tto

m s

kin o

nto

the to

p s

kin,

addin

g a

1/4

” m

arg

in a

t

the tra

iling e

dg

e. C

ut o

ut th

e to

p s

kin.

Figure 1 – Top wing skin

Wing Panels

Pin

a lo

wer

win

g s

kin to

yo

ur

build

ing b

oard

. T

he lo

wer

ski

ns a

re t

he o

nes w

ith t

he

rib

and s

pa

r po

sitio

ns

etc

hed into

the

m.

Glu

e t

he r

ibs a

nd m

ain

spar

to t

he

bo

tto

m s

he

et. N

ote

th

at th

e s

par

is n

otc

he

d a

t th

e d

ihedra

l a

ng

le f

or

roo

t rib W

1. T

o m

ain

tain

an a

ccura

te C

lark

Y a

irfo

il, m

ois

ten

the leadin

g e

dg

e o

f th

e s

he

eting a

nd p

ack

it u

p s

o t

hat

it fo

llow

s t

he c

urv

e o

n t

he b

otto

ms o

f th

e r

ibs.

Page 3: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

3

Figure 2 – Ribs and spar on wing panel

Build

the leadin

g e

dg

e s

trip

by s

licin

g a

sho

rt s

ectio

n

(abo

ut

1-1

/4”)

off

the s

trip

, fo

llow

ing t

he a

ngle

sho

wn

on t

he p

lans. R

eve

rse t

he s

ho

rt s

ectio

n a

nd g

lue it in

pla

ce o

n t

he b

ack o

f th

e leadin

g e

dg

e s

trip

.

Glu

e t

he le

adin

g e

dge s

trip

in p

lace a

gain

st th

e f

ront o

f th

e w

ing s

kin. N

ote

that th

e leadin

g e

dge

str

ip s

its o

n

yo

ur

build

ing b

oard

, no

t o

n t

he w

ing s

kin. C

ut

and f

it a

sho

rt s

ectio

n o

f le

adin

g e

dge s

trip

fo

r th

e c

ente

r o

f th

e

win

g.

Glu

e t

he a

ilero

n s

par

to t

he b

otto

m s

he

et a

nd r

ibs.

Glu

e t

he a

ilero

n leadin

g e

dge

to

the b

otto

m s

heet,

abo

ut 1

/32”

aft

of

the a

ilero

n s

par.

DO

NO

T g

lue t

he

aile

ron le

adin

g e

dge to

the a

ilero

n s

par.

Glu

e t

he s

tub r

ibs to

the r

ea

r o

f th

e a

ilero

n le

adin

g

edge a

nd t

he

bo

tto

m s

he

et.

Cut th

ree

aile

ron c

rank b

ea

rings f

rom

3/3

2”

alu

min

um

tu

be. M

ake

them

abo

ut 1/2

” lo

ng.

Make

an a

ilero

n c

rank f

rom

1/1

6”

music

wir

e a

nd t

he

thre

e b

eari

ngs.

Trim

a s

lot in

the a

ilero

n leadin

g e

dge f

or

the a

ilero

n

cra

nk.

Glu

e t

he a

ilero

n c

rank

in p

lace,

with g

lue o

n t

he

beari

ngs w

here

they p

ass t

hro

ug

h r

ibs W

2, W

3 a

nd

W4.

Figure 3 – W

ing panel assembly

Use s

cra

p b

als

a to

ma

ke a

bea

ring b

lock f

or

the a

ilero

n

cra

nk.

DO

NO

T g

lue t

he m

usic

wire c

rank

to t

he

bo

tto

m s

kin o

r to

the b

eari

ng b

lock.

Glu

e s

cra

p 1

/16

” o

r 1/8

” ba

lsa r

ein

forc

em

ents

to

the

outs

ide r

ear

po

rtio

n o

f rib W

1. U

sin

g a

sharp

#11

bla

de, cut

a s

lot in

ro

ot rib W

1 fo

r th

e w

ing b

olt, b

ut

do

n’t c

ut th

e r

ein

forc

em

ents

. T

he c

ente

r o

f th

e s

lot

sho

uld

be

abo

ut 1/2

” fo

rward

of

the t

raili

ng e

dge. N

otc

h

the b

otto

m s

kin s

o t

hat yo

u c

an f

ind t

he b

olt

ho

le late

r.

Usin

g a

lo

ng s

andin

g b

lock

and f

ine g

rit sa

ndpa

per,

sand t

he

assem

ble

d w

ing p

ane

l to

pre

pare

it fo

r th

e to

p

ski

n. S

and t

he

airfo

il a

ng

le into

the t

raili

ng e

dge,

so

th

at th

e tra

iling e

dge is a

bo

ut 1/3

2”

thic

k.

Page 4: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

4

Put th

e w

asho

ut

jig in p

lace u

nder

the w

ing t

raili

ng

edge. T

he t

hic

k e

nd o

f th

e ji

g g

oes a

t th

e w

ingtip. P

in

the w

ing d

ow

n.

Figure 4 – W

ing panel pinned to washout jig

Cut

a h

ole

in t

he to

p s

kin f

or

the a

ilero

n c

rank.

Apply

a t

hin

bead o

f P

ro-B

ond o

r alip

hatic r

esin

to

the

tops o

f th

e r

ibs a

nd s

pars

and a

long t

he

to

p o

f th

e

lea

din

g a

nd tra

iling e

dges. Lay t

he to

p s

kin in p

lace

and p

in it firm

ly to

the r

ibs a

nd

spars

. Let th

e w

ing

assem

bly

dry

.

Lam

inate

tw

o W

T p

ieces to

make

a w

ing tip

blo

ck.

G

lue

the w

ing tip

blo

ck

to the

win

g.

No

tch t

he le

adin

g e

dge f

or

the 1

/8”

do

we

l.

Sand t

he w

ing

pa

ne

l to

its

fin

al shape

.

Repeat th

ese s

teps w

ith t

he

oppo

site w

ing p

ane

l.

Wing Panel Joint

Use a

long s

andin

g b

lock

to p

rep

are

the r

oo

t rib f

aces

for

join

ing

.

Jo

in t

he p

ane

ls u

sin

g 1

5-m

inute

epo

xy b

etw

ee

n t

he

ro

ot ribs. U

se m

aski

ng ta

pe to

ho

ld t

he b

otto

m s

kins

flush. W

ith o

ne w

ing tip

fla

t o

n t

he b

uildin

g s

urf

ace,

ele

vate

the o

ther

win

g tip

to

the r

eq

uire

d to

tal dih

ed

ral.

Rein

forc

e t

he r

oo

t rib jo

int by w

rappin

g it

with n

ylo

n o

r

gla

ss c

loth

. S

atu

rate

the w

rap w

ith C

A.

Use a

1/8

” dri

ll bit to

cle

ar

the w

ing

bo

lt ho

le a

nd t

he

do

wel ho

le in t

he le

adin

g e

dge.

Use a

sharp

#11

bla

de t

o c

ut

the a

ilero

ns f

ree f

rom

the

win

gs. U

se a

sa

ndin

g b

lock

to f

inis

h t

he a

ilero

n leadin

g

edges a

nd t

he

aile

ron s

lots

in t

he w

ing.

Co

ver

the w

ing a

s d

esired.

We s

ugg

est

usin

g e

ithe

r

1/2

-ounce f

iberg

lass c

loth

and f

inis

hin

g r

esin

, o

r D

ocula

m.

Hin

ge

the a

ilero

ns.

Insta

ll th

e 1

/8”

do

we

l in t

he leadin

g e

dge. T

he d

ow

el

sho

uld

pro

ject a

bo

ut 1

/4”

forw

ard

of

the w

ing.

Fuselage

BE SURE TO MAKE A LEFT SIDE AND A RIGHT

SIDE!

Glu

e t

he w

ing s

add

le d

ouble

rs to

the f

use

lage

sid

es.

Page 5: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

5

Glu

e t

he 1

/4”

tria

ng

le s

trip

s a

long t

he b

otto

m r

ear

of

the f

use

lage. T

rim

the tria

ng

le s

trip

s s

o t

hat th

e

fusela

ge s

ides c

an b

e p

ulle

d to

geth

er

at th

e r

ear.

Figure 5 – Trim triangle strips at fuselage rear

Glu

e t

wo

sets

of

1/1

6”

rein

forc

em

ents

FR

2 t

hro

ug

h

FR

6 to

fo

rmers

F2

thro

ug

h F

6.

Glu

e f

orm

ers

F2,

F3 a

nd F

4 to

one f

use

lage s

ide

. T

he

forw

ard

sid

e o

f th

e f

orm

er

sho

uld

be o

n t

he

line e

tched

on t

he f

use

lage

sid

e. M

ake

sure

that th

e f

orm

ers

are

at

90-d

egre

e a

ng

les to

the

fuse

lag

e s

ide.

Figure 6 – Glue form

ers to one side of fuselage

Glu

e t

he o

ther

fuse

lag

e s

ide to

fo

rmers

F2,

F3 a

nd F

4,

ma

king s

ure

that eve

ryth

ing is s

quare

.

Lam

inate

the t

wo

1/1

6”

ply

win

g m

ounting b

locks

WM

to

geth

er.

Glu

e t

hem

into

the s

lots

in t

he w

ing s

add

le

do

ub

lers

, m

aki

ng s

ure

that th

ey a

re f

lush w

ith t

he w

ing

sadd

le.

Page 6: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

6

Figure 7 - W

ing saddle

Use s

cra

p 1

/4”

ba

lsa tria

ng

le to

rein

forc

e t

he jo

int

betw

ee

n F

4 a

nd t

he

fuse

lage s

ides.

Figure 8 – Add second fuselage side

Sco

re the f

use

lage

sid

es a

t th

e r

ear

of

F4 a

nd g

ently

cra

ck

the

m s

o that th

e e

nds o

f th

e f

use

lag

e c

an b

e

bro

ug

ht to

geth

er.

Glu

e t

he f

use

lage

sid

es to

geth

er

at th

e r

ear

of

the

fusela

ge. M

ake

sure

that th

e f

use

lage is s

traig

ht

and

true.

Figure 9 – Join fuselage sides at rear

Use a

sa

ndin

g b

lock

to d

eck

sa

nd t

he e

dg

es o

f th

e

fusela

ge. A

ll fo

rmers

, tr

iang

le s

trip

s a

nd

fuse

lag

e s

ides

sho

uld

be

flu

sh.

Glu

e f

orm

ers

F5 a

nd F

6 in p

lace

. N

ote

that th

e c

uto

ut

in t

he e

dge o

f F

6 g

oes o

n t

he left

sid

e o

f th

e f

use

lag

e.

Glu

e a

1/8

” x

1/4

” b

als

a s

trip

betw

ee

n t

he t

ops o

f F

4A

and F

6.

Glu

e a

1/8

” x

1/4

” b

als

a s

trip

betw

ee

n t

he t

ops o

f F

1

and F

3A

.

Page 7: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

7

Alig

n t

he f

irew

all

F1 w

ith t

he f

usela

ge s

ides a

nd

glu

e it.

N

ote

that

the t

wo

etc

hed

lines o

n F

1 m

ark

the u

pper

po

sitio

n o

f th

e f

use

lage s

ides.

Figure 10 – Add fuselage stringers and firewall

Glu

e f

orm

ers

F2A

, F

3A

and F

4A

in p

lace

.

Figure 11 – Add rear stringer and cockpit floor

Add a

co

ckp

it f

loo

r fr

om

scra

p b

als

a if

desired.

Sheet

or

pla

nk

the to

p o

f th

e f

use

lag

e b

etw

ee

n F

1 a

nd

F4A

with 1

/16”

ba

lsa.

Note:

Da

mpe

n t

he b

als

a w

ith a

wea

k a

mm

onia

and

wate

r so

lutio

n a

nd m

old

it

aro

und t

he f

use

lage f

orm

ers

. W

he

n it’s d

ry, tr

im it to

siz

e a

nd g

lue it

in p

lace

.

Figure 12 – M

old balsa skin for front fuselage

Sheet

or

pla

nk

the to

p o

f th

e f

use

lag

e b

etw

ee

n F

4A

and F

6 w

ith 1

/16”

bals

a.

Page 8: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

8

Figure 13 – M

old balsa skin for rear fuselage

Cut th

e c

ockpit o

pe

nin

g f

rom

the to

p s

heet.

Yo

u c

an

trace t

he p

att

ern

fro

m t

he p

lans.

Ho

ld f

orm

er

F2B

again

st

F2,

and m

ark

the w

ing d

ow

el

ho

le o

n F

2. D

rill

the w

ing d

ow

el ho

le in F

2.

Glu

e F

2B

to

the f

ront o

f F

2. D

o n

ot get

any g

lue

on t

he

do

wel!

Check

the w

ing

alig

nm

ent. T

he

n d

rill

thro

ug

h t

he w

ing

and w

ing h

old

-do

wn p

late

with t

he

app

ropriate

siz

e

drill.

Tap t

he w

ing

ho

ld d

ow

n p

late

fo

r th

e w

ing

m

ounting b

olt.

If y

ou’re u

sin

g a

fle

xib

le p

ushro

d f

or

ele

vato

r co

ntr

ol,

insta

ll it n

ow

.

Sheet

the b

otto

m r

ear

of

the f

use

lage w

ith 1

/16

ba

lsa

with t

he g

rain

acro

ss the

fuse

lage.

Figure 14 – Sheet bottom rear fuselage

Sand t

he b

otto

m c

orn

ers

of

the r

ear

fuse

lag

e to

a

unifo

rm 1

/4”

radiu

s.

Sheet

or

pla

nk

the lo

wer

fro

nt fu

se

lag

e b

etw

ee

n F

1

and F

2 w

ith 1

/16”

bals

a.

Figure 15 – Sheet bottom front fuselage

Page 9: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

9

Make

a “

T”

fro

m s

cra

p b

als

a to

sim

ula

te t

he f

in a

nd

ho

rizo

nta

l sta

bili

zer.

Tack-g

lue t

he “

T”

in p

lace a

t th

e

rear

of

the f

use

lag

e.

Figure 16 – Scrap balsa "T"

Figure 17 – Shape tail blocks

Tack-

glu

e t

he t

ail

blo

cks

TB

on e

ither

sid

e o

f th

e “

T”.

S

hap

e t

he t

ail

blo

cks

to

the f

use

lage

co

nto

ur.

Rem

ove the tail

blo

cks

and “

T”.

Dis

card

the “

T”.

Ho

llow

th

e tail

blo

cks

.

Glu

e t

he h

orizo

nta

l sta

bili

ze

r to

the f

use

lage. M

ake

sure

tha

t it’s

alig

ne

d w

ith t

he f

use

lage a

nd w

ings.

Co

ver

the t

op o

f th

e f

use

lag

e b

etw

ee

n t

he e

levato

rs

with a

scra

p o

f bals

a.

Assem

ble

the f

in a

nd

rud

der.

Insert

the a

ssem

bly

into

the s

lots

in t

he h

orizo

nta

l sta

bili

zer

and g

lue.

Glu

e t

he t

ail

blo

cks

in p

lace.

Fill

in t

he s

ma

ll space b

etw

ee

n F

6 a

nd t

he f

in w

ith

scra

p b

als

a.

Build

the w

ing f

illets

fro

m s

cra

p 1

/16”

ba

lsa a

nd p

ink

foam

.

Figure 18 – W

ing fillet base

Page 10: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

10

Figure 19 – Foam blocks added to fillet base

Trim

abo

ut 1

/8”

fro

m t

he b

otto

m o

f th

e v

acuum

-fo

rmed

pla

stic c

ow

l.

Figure 20 – M

ark cowl for trimming

Cut tw

o 1

/4”

sq

ua

re h

ard

wo

od m

oto

r m

ount sticks

4-

1/2

” lo

ng. B

eve

l the f

orw

ard

oute

r edges o

f th

e s

ticks

abo

ut 1

/16”.

Push t

he m

oto

r m

ount sticks

thro

ug

h F

1

and F

2 b

ut

do

n’t g

lue t

he

m in p

lace.

Put th

e c

ow

l in p

lace o

n t

he f

use

lage.

Make

sure

it’s

str

aig

ht a

nd s

quare

to

the

fuse

lage.

Push t

he m

oto

r m

ount

sticks

fo

rward

until th

ey just

touch t

he c

ow

l. R

em

ove t

he

co

wl a

nd

tack-

glu

e t

he

mo

tor

mo

unt

sticks

in p

lace.

Use a

rub

ber

ba

nd to

ho

ld t

he m

oto

r to

the m

oto

r m

ount sticks

. F

it t

he c

ow

l in p

lace a

nd

insta

ll th

e

spin

ner.

Ad

just th

e m

oto

r and c

ow

l until t

he f

it is

perf

ect. T

he

n d

rill

3/6

4”

ho

les t

hro

ug

h t

he c

ow

l in

to t

he

ends o

f th

e m

oto

r m

ount

sticks

. A

ttach t

he c

ow

l to

the

mo

tor

mo

unt

sticks

with s

mall

scre

ws.

Glu

e s

cra

ps o

f 1/1

6”

ba

lsa to

the b

otto

ms o

f th

e m

oto

r m

ount sticks

. T

he

n g

lue t

he 1

/16”

mo

tor

mo

unt base

MM

to

the 1

/16”

scra

p. T

rim

MM

so

that th

e c

ow

l fits

co

rrectly

.

Figure 21 – M

otor mount completed

Page 11: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

11

Note

– y

ou c

an g

lue s

trip

s o

f scra

p p

lastic insid

e t

he c

ow

l to

re

info

rce it.

Figure 22 – Trial assembly of model

Scale Details

Cut

and t

rim

the p

lastic r

adia

tor.

Glu

e t

he laser-

cut

1/1

6 b

als

a b

ase (

SB

) in

to the r

adia

tor.

We r

eco

mm

end

usin

g m

ag

nets

to

attach t

he r

adia

tor

to y

our

mo

del.

Cut

and t

rim

the p

lastic m

achin

e g

un b

liste

r, a

nd a

ttach

it to

the f

use

lage

in lin

e w

ith t

he g

un tro

ug

h.

NO

TE

: T

he Y

ak-

9D

had o

nly

a s

ing

le f

use

lage-m

ounte

d

machin

e g

un.

Cut

and t

rim

the p

lastic c

ow

l sco

op, a

nd a

ttach it to

the

co

wlin

g.

Cut

and t

rim

the p

lastic e

xha

usts

, a

nd g

lue t

he

m to

the

co

wl.

Finishing Your Yak

We s

uggest co

veri

ng

the e

ntire

mo

del (e

xcep

t th

e

pla

stic b

its)

with 1

/2-o

unce g

lass c

loth

and f

inis

hin

g

resin

fo

r m

axi

mum

str

ength

. F

or

a lig

hte

r w

eig

ht finis

h,

‘gla

ss’ o

nly

the b

otto

m o

f th

e f

usela

ge a

nd c

over

the

rem

ain

der

with a

lig

htw

eig

ht film

such a

s D

ocula

m.

Apply

a lig

ht co

at o

f prim

er

– just e

no

ug

h to

fill

the

weave o

f th

e g

lass –

and s

and m

ost of

it o

ff.

Pain

t a

nd d

eco

rate

the m

odel as d

esir

ed –

see t

he

Pain

t a

nd M

ark

ings G

uid

e o

n o

ur

Website f

or

mo

re

info

rmatio

n.

Fin

ally

, sea

l the e

ntire

mo

de

l w

ith a

lig

ht co

at o

f K

rylo

n

cle

ar.

Decals

CAUTION: You m

ust seal the decals before immersing

them in w

ater!

The d

eca

ls inclu

de

d in t

his

kit a

re p

rinte

d w

ith E

pso

n

Dura

Brite

™ inks

on p

rem

ium

inkje

t w

ate

r-slid

e d

eca

l paper

availa

ble

. F

ollo

w t

he s

teps b

elo

w to

achie

ve a

gre

at

loo

king

set o

f m

ark

ings o

n y

our

mo

de

l.

Seal t

he d

ecals

with s

eve

ral t

hin

co

ats

of

Kry

lon

Cry

sta

l C

lear™

sp

ray v

arn

ish. M

ake

sure

yo

u

tho

roug

hly

co

ver

the ink; th

is w

ill p

reve

nt sm

ears

and

sta

ins d

uri

ng e

ve

ryday h

and

ling

.

Make

sure

the

surf

ace w

here

the d

eca

l is to

be a

pp

lied

is s

mo

oth

and g

lossy. M

atte s

urf

aces w

ill p

erm

it tin

y a

ir

bubb

les to

be t

rapp

ed b

etw

ee

n t

he s

urf

ace a

nd t

he

deca

l, th

us s

po

iling t

he d

eca

l.

Page 12: Yak-9D Construction Manual v2 - Manzano Laser...Assembly Manual for Yakovlev Yak-9D Copyright 2005 Thomas A. Jacoby and WarbirdKits.com 2 Construction Wing Skins Each wing bottom skin

Assem

bly

Ma

nua

l fo

r Y

ako

vle

v Y

ak-

9D

Co

pyright

2005 T

ho

mas A

. Jaco

by a

nd W

arb

irdK

its.c

om

12

Cut o

ut a

nd tri

m a

ll th

e m

ark

ings t

hat

yo

u p

lan to

app

ly

in t

his

sessio

n.

Dip

the d

ecal in

a b

ow

l of

wate

r fo

r abo

ut 30 to

40

seco

nds. U

sin

g y

our

fingers

, ge

ntly

try

to

slid

e t

he

deca

l off

the b

acki

ng p

aper.

As s

oo

n a

s t

he d

eca

l slid

es, slid

e it o

ff the b

acki

ng p

aper

and o

nto

the m

ode

l

in t

he d

esir

ed p

ositio

n. U

se a

so

ft a

bso

rbent clo

th to

ge

ntly b

lot e

xcess w

ate

r fr

om

the d

eca

l. A

llow

the

deca

l to

dry

.

TIP

– Y

ou c

an p

ractice w

ith b

its o

f decal c

ut fr

om

the

co

pyright

no

tice.

Spra

y a

co

at o

f K

rylo

n C

rysta

l Cle

ar

varn

ish o

ver

the

deca

l.

Flying Setup

Keep t

he m

odel a

s li

ght as p

ossib

le f

or

best

perf

orm

ance.

The Y

ak

sho

uld

ba

lance a

t 2-1

/4”

be

hin

d t

he lea

din

g

edge a

t th

e c

ente

r cho

rd. T

his

is a

ppro

xim

ate

ly 2

4%

of

the m

ea

n a

ero

dynam

ic c

ho

rd (

MA

C).

Fo

r th

e f

irst fe

w

flig

hts

, yo

u m

ay w

ant

to m

ove the

ba

lance p

oin

t fo

rward

1/4

”.

Set th

e c

ontr

ol t

hro

ws to

:

E

levato

r: 1

/2”

up

– 1

/2”

do

wn

A

ilero

ns: 3/8

” up –

1/4

” do

wn

HELP!

If y

ou h

ave q

uestio

ns o

r nee

d h

elp

with a

ssem

bly

of

the k

it,

dro

p a

n e

mail

to to

m@

warb

ird

kits

.co

m.