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Extra 300 90 Kit

EXTRA 300
Stock Number:  GBGA0055
Kit Number:  55 
Wingspan:  68" 
Wing Area:  852 Sq." 
Flying Weight:  8.5 lbs. 
Fuse Length:  61"
Radio:  4-Channel 
Power:  2-stroke .60-75 
4-stroke .80-1.20 
INCIDENCE
(In Degrees)
Wing:  0
Tail:  0
Engine:  Right 2 
Down 1 
THROWS
Aileron:  5/8" - 3/8" 
Elevator:  7/16" - 5/16" 
Rudder:  5/8" - 1-3/16" 
 CENTER OF GRAVITY 
Balance Point on fuse,
measured back from
wing leading edge
5" to 5-3/4"

Download the instruction manual online in pdf format

Download the General Information Booklet (Book 2)

When you're ready for something extra...
Here's a model that delivers stunning aerobatic performance, handles like a dream, and lands like a trainer. its the CG verson of Walter Extra's 300 hp Unlimited–class aerobatic masterpiece, and its tough to beat for all–around RC enjoyment. Plus its a top value–interlocking balsa and ply construction engineered to assemble straight and true; great plans; logical, easy–to–follow instruction book; and complete hardware. And because its extremely light for its generous size, it will perform like a champ on a modestly–priced .65.

PRE-BUNDLED PARTS
Prices subject to change without notice.



* Number of bundles or pieces necessary to complete the plane
** Price for single bundle or piece.
Prices subject to change without notice.

Replacement Parts

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

94

EXTRA 300 Wing Kit
89.99

 

NON-BUNDLED PARTS

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

2

1230

. 063 X 20-3/4 AILERON WIRE

.50

2

1287

STRANDED RUDDER CABLE (34")

1.50

1

1288

THROTTLE PUSHROD CABLE (18")

1.50

1

1657

THROTTLE PUSHROD TUBE (18")

.50

1

1666

COWL JOINER STRIP

1.00

1

2026

GENERAL INFORMATION BOOK

9.95

1

2060

K-55 INSTRUCTION BOOKLET

9.95

1

2061

K-55 PLAN (SHEET 1 - WING)

9.95

1

2062

K-55 PLAN (SHEET 2 - FUSELAGE)

10.95

1

2285

K-55 DECAL

9.95

2

3472

L/C SHEET 5501 FUSELAGE SIDE

12.95

1

3473

L/C SHEET 5502 FUSELAGE BOTTOM

9.95

1

3481

L/C SHEET 5518 TURTLEDECK

12.95

1

9524

NYLON FABRIC 3/4 X 38"

.75

1

9515

K-55 CANOPY

19.95

1

9516

K-55 COWL FRONT

8.95

1

9517

K-55 COWL (LEFT & RIGHT HALVES)

18.95

1

9518

K-55 COCKPIT INSERT

12.95

 

K-55 CANOPY KIT

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5541

K-55 CANOPY KIT

50.35

1

1755

K-55 DOWEL 1/4 x 1-3/4" CANOPY HOLD DOWN

.50

1

3474

L/C SHEET 5503 Fuselage Top

5.95

1

3476

L/C SHEET 5505 Fuselage Former Doublers

7.00

1

3479

K-55 L/C SHEET 5508 CANOPY SPREADER

4.00

1

9518

K-55 CANOPY INSERT

12.95

1

9515

K-55 CANOPY

19.95

 

K-55 BUNDLE #1 PLAIN SHEETS

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5527

K-55 BUNDLE #1 PLAIN SHEETS
(CONTAINS 5 ITEMS - 18 PCS)

50.00

2

4538

K-55 FIN SHEETING 3 X 18

2.00

4

4539

STAB SHEETING 3 X 30

3.00

2

4886

K-55 STRUT SHEETING 3 X 10

2.00

4

4887

K-55 T.E. SHEETING 2-1/2 X 35

4.00

6

4888

K-55 L.E. SHEETING 2-3/4 X 35

4.00

 

K-55 BUNDLE #2 BALSA SHEETS

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5528

K-55 BUNDLE #2 BALSA SHEETS
(CONTAINS 9 ITEMS - 18 PCS)

55.00

2

3325

L/C SHEET 5510 Wing Ribs # 2 & 3

3.00

2

3326

L/C SHEET 5511 Wing Ribs # 3 & 6

3.00

2

3327

L/C SHEET 5512 WING RIBS #1 & #4

3.00

2

3328

L/C SHEET 5513 WING RIBS #5 & #7

3.00

2

3329

L/C SHEET 5514 Wing Ribs # 1Frt , 9 & 10

3.00

4

3330

L/C SHEET 5515 WING CNTR SHTG

3.00

1

3331

L/C SHEET 5517 STAB & RUDDER

6.00

2

3332

L/C SHEET 5520 SHEAR WEBS

4.00

1

3334

L/C SHEET 5522 AILERON COVERS

4.00

 

K-55 BUNDLE # 3 PLYWOOD

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5529

K-55 BUNDLE # 3 PLYWOOD
(CONTAINS 6 ITEMS - 6 PCS)

17.00

1

3474

L/C SHEET 5503 FUSELAGE TOP

5.95

1

3475

L/C SHEET 5504 Fuselage Doubler & Formers

3.50

1

3476

L/C SHEET 5505 Fuselage Former Doublers

7.00

1

3479

L/C SHEET 5508 GUSSET & SPRDR

4.00

1

3483

L/C SHEET 5516 WING JOINERS

2.50

1

3484

L/C SHEET 5521 AILERON WING MNTS

2.50

1

3487

L/C SHEET 5507 FORMERS AND TOP SUPPORT

3.00

 

K-55 BUNDLE #4 PLYWOOD

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5530

K-55 BUNDLE #4 PLYWOOD
(CONTAINS 5 ITEMS - 5 PCS)

27.00

1

3477

L/C SHEET 5506 FMRS & GUAGES

6.00

1

3478

L/C SHEET 5507 FMRS & TOP SUPPRT

6.00

1

3480

L/C SHEET 5509 FIREWALL

5.00

1

3482

L/C SHEET 5519 SERVO TRAY

6.00

1

4602

FRONT SHEET

4.00

 

K-55 BUNDLE #5 WING STICKS

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5531

K-55 BUNDLE #5 WING STICKS
(CONTAINS 5 ITEMS - 15 PCS)

36.00

2

4523

NOTCHED TRAILING EDGE

4.00

2

3705

SHAPED LEADING EDGE

4.00

5

4525

CAPSTRIPS 1/16 X1/4 X 24

.50

2

4862

AILERON

4.00

4

3700

WING SPAR

4.00

 

K-55 BUNDLE #6 MISC. STICKS

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5532

K-55 BUNDLE #6 MISC. STICKS
(CONTAINS 6 ITEMS - 19 PCS)

35.50

3

4369

FIN TRUSSING

2.00

8

4370

RUDDER/ELEVATOR TRUSSING

2.00

5

4371

STAB STICKS

2.00

1

4379

ELEVATOR PUSHROD

1.50

2

4587

DOUBLER FORMER STRIP

2.00

 

K-55 WOOD PARTS BAG

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5533

K-55 WOOD PARTS BAG
(CONTAINS 8 ITEMS - 11 PCS)

11.00

1

1755

CANOPY DOWEL 1/4 X 1-3/4

.50

1

1750

WING DOWEL 5/16 X 4-3/4

1.00

2

4368

DIHEDRAL BRACE

1.00

1

4372

WING MOUNTING BLOCK

2.00

1

4373

LANDING GEAR BLOCK

1.00

2

4374

ENGINE SPACER

1.00

1

4217

FIREWALL GUSSET

1.00

2

4526

INNER TRAILING EDGE

2.00

 

K-55 LARGE PARTS BAG

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5534

K-55 LARGE PARTS BAG
(CONTAINS 4 ITEMS - 8 PCS)
plus SMALL PARTS BAGS

50.50

2

1272

.072 Threaded Rod X 10"

.75

2

1272

.078 THREADED ROD

1.00

2

1322

LANDING GEAR

2.95

2

1466

NYLON ENGINE MOUNT

2.12

 

K-55 SMALL PARTS BAG #1

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5535

K-55 SMALL PARTS BAG #1
(CONTAINS 4 ITEMS - 8 PCS)

10.00

6

1024

6-32 X 1-1/4 SOCKET HEAD SCREW

.25

1

1040

2-56 X 1/8 PAN HEAD MACH SCREW

.30

6

1048

4-40 X 1/2 PAN HEAD MACH SCREW

.30

4

1082

#6 X 3/4 SHEET METAL SCREW

.30

10

1087

#2 X 3/8 SHEET METAL SCREW

.30

6

1124

6-32 BLIND NUT

.30

6

1125

4-40 BLIND NUT

.30

16

1139

#4 M.S. WASHER- ZINC

.30

6

1140

#6 M.S. WASHER - BLACK

.30

2

1144

#6 X 3/4 O.D. WASHER

.30

1

1166

3/32 WHEEL COLLAR

1.00

 

K-55 SMALL PARTS BAG #2

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5536

K-55 SMALL PARTS BAG #2
(CONTAINS 12 ITEMS - 71 PCS)

22.00

2

1004

4-40 X 1/4 SOCKET HEAD SCREW

.30

4

1033

6-32 X 1/8 SOCKET SET SCREW

.30

4

1041

2-56 X 1/2 PAN HEAD MACH SCREW

.30

10

1042

2-56 X 3/4 PAN HEAD MACH SCREW

.30

16

1086

#2 X 5/16 SHEET METAL SCREW

.30

3

1115

2-56 MACHINE SCREW HEX NUT

.30

18

1138

#2 M.S. WASHER - ZINC

.30

4

1169

3/16 WHEEL COLLAR

1.00

2

1182

1/8 BELLCRANK BUSHING

.50

5

1192

1/16 THREADED COUPLER

.80

1

1375

PUSHROD CONNECTOR BODY

.50

3

1376

1/16 I.D. TUBING

.30

 

K-55 SMALL PARTS BAG #3

Quantity
Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5537

K-55 SMALL PARTS BAG #3
(CONTAINS 9 ITEMS - 46 PCS)

14.00

10

1405

SNAP LINK

.30

6

1407

LONG CONTROL HORN

.30

2

1410

AILERON BELLCRANK

.50

4

1418

LANDING GEAR STRAP

.30

1

1424

ADJUSTABLE HORN BRACKET

.50

1

1425

CENTER LINE MARKER

.50

1

1427

AILERON COUPLER BLOCK

.50

17

1449

LARGE FLEX-POINT HINGE

.20

1

5819

TAILWHEEL ASSEMBLY

6.29

 

K-55 PLASTIC PARTS BAG

Quantity Required*

PT #

DESCRIPTION
UNIT** PRICE

1

5539

K-55 PLASTIC PARTS BAG
(CONTAINS 5 ITEMS - 5 PCS)

28.00

1

1580

WHEEL PANT (RIGHT INNER)

3.95

1

1581

WHEEL PANT (RIGHT OUTER)

3.95

1

1582

WHEEL PANT (LEFT INNER)

3.95

1

1583

WHEEL PANT (LEFT OUTER)

3.95

1

9516

COWL FRONT

8.95

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