How many pieces does the LEGO MX-81 Hypersonic Operations Aircraft (7644-1) have?

The LEGO MX-81 Hypersonic Operations Aircraft set (7644-1) contains 795 pieces. It was released in 2008 as part of the LEGO Space theme.

How can I find missing parts for LEGO set 7644-1?

On BrickMissing you can check which parts from the LEGO MX-81 Hypersonic Operations Aircraft (7644-1) you already own. Add your LEGO collection and we'll show exactly which of the 795 pieces you're missing and which you already have.

Can I build the LEGO MX-81 Hypersonic Operations Aircraft with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 795 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO MX-81 Hypersonic Operations Aircraft from?

The LEGO MX-81 Hypersonic Operations Aircraft (7644-1) belongs to the LEGO Space theme. You can browse all Space sets on BrickMissing to find more sets from this theme.

MX-81 Hypersonic Operations Aircraft - View 6

MX-81 Hypersonic Operations Aircraft

🏷️ 7644-1•🎨 Space•📅 2008•🧱 795 parts•Intermediate

MX-81 Hypersonic Operations Aircraft (7644-1) is a LEGO Space from 2008. This page uses the available set and theme data until a fuller product description is available.

Parts Inventory

🧱 795 parts

Part	Color	Qty
Wing, Tail 4 x 1 x 3 2340	White	4×
Equipment Goblet / Glass 2343	Light Bluish Gray	2×
Brick 2 x 2 Corner 2357	White	4×
Tile Special 1 x 2 Grille with Bottom Groove 2412b	Orange	27×
Tile Special 1 x 2 Grille with Bottom Groove 2412b	Trans-Red	8×
Plate 2 x 2 Corner 2420	Black	2×
Tile 1 x 4 with Groove 2431	White	7×
Tile Special 1 x 2 with Handle 2432	Red	1×
Tile Special 1 x 2 with Handle 2432	White	7×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] 2444	White	1×

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Plate 2 x 2 Corner	2420	Black	2×
Tile 1 x 4 with Groove	2431	White	7×
Tile Special 1 x 2 with Handle	2432	Red	1×
Tile Special 1 x 2 with Handle	2432	White	7×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]	2444	White	1×
Plate 2 x 12	2445	Black	9×
Brick 2 x 6	2456	Black	2×
Brick Special 1 x 2 with Pin	2458	Black	2×
Tile Special 2 x 2 with Top Pin	2460	Red	2×
Plate Special 1 x 2 Side Handle [Free Ends]	2540	Orange	4×
Tile Special 1 x 1 with Clip and Straight Tips	2555	White	2×
Panel 3 x 4 x 6 Curved Top	2571	White	4×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	Trans-Dark Blue	1×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	Red	1×
Technic Pin with Friction Ridges Lengthwise and Center Slots	2780	Black	30×
Brick Special 1 x 2 with Grille	2877	White	6×
Lever Small Base with Black Lever	298c02	White	4×
Brick 2 x 4	3001	Light Bluish Gray	6×
Brick 2 x 4	3001	Black	8×
Brick 2 x 3	3002	White	9×
Brick 2 x 2	3003	Red	1×
Brick 1 x 1	3005	White	4×
Brick 2 x 10	3006	White	2×
Brick 1 x 8	3008	Black	2×
Brick 1 x 4	3010	Dark Bluish Gray	2×
Brick Round 2 x 2 x 1 2/3 Dome Top, Blocked Open Stud	30151a	Trans-Clear	2×
Rock 1 x 1 Jewel / Gem 24 Facet	30153	Trans-Neon Green	4×
Plate 2 x 4	3020	White	2×
Plate 2 x 4	3020	Black	2×
Plate 2 x 4	3020	Orange	2×
Plate 2 x 3	3021	White	9×
Plate 2 x 2	3022	Orange	2×
Plate 1 x 2	3023	White	13×
Plate 1 x 2	3023	Black	5×
Brick Special 1 x 2 with Handle	30236	White	6×
Brick Special 1 x 2 with Vertical Clip [Thick U Clip]	30237a	Dark Gray	2×
Slope Inverted 45° 6 x 4 Double with 4 x 4 Recessed	30283	Black	2×
Plate 4 x 10	3030	Black	1×
Equipment Space Binoculars / Scanner / Electrobinoculars	30304	Dark Bluish Gray	1×
Plate 4 x 4	3031	Black	4×
Plate 4 x 4	3031	Black	6×
Plate 4 x 6	3032	White	3×
Plate 2 x 8	3034	Black	8×
Plate 2 x 8	3034	Black	1×
Tile Special 2 x 3 with 2 Clips [Thick Open O Clips]	30350b	Black	2×
Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End)	30359b	Black	6×
Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End)	30359b	White	16×
Cylinder 3 x 6 x 2 2/3 Horizontal Hollow Studs	30360	White	2×
Slope 18° 4 x 2	30363	White	4×
Slope 45° 2 x 4	3037	Black	1×
Slope 45? 2 x 2	3039	White	2×
Slope 45° 2 x 1 with Bottom Pin	3040b	Black	2×
Brick Special 1 x 4 with 4 Studs on One Side	30414	Light Bluish Gray	6×
Brick Special 1 x 2 with 2 Pins, Round Pin Holes	30526	Light Bluish Gray	2×
Plate Round Corner 4 x 4	30565	Lime	2×
Slope Curved 2 x 2 with Lip, No Studs	30602	White	3×
Slope 2 x 2 No Studs, with 3 Side Pistons Raised Edges	30603	Black	2×
Brick Round 1 x 1 Open Stud	3062b	Trans-Dark Blue	18×
Brick Round 1 x 1 Open Stud	3062b	Trans-Red	4×
Brick Round 1 x 1 Open Stud	3062b	Dark Bluish Gray	10×
Tile 2 x 2 with Groove	3068b	Black	1×
Tile 2 x 2 with Groove	3068b	White	7×
Tile 1 x 2 with Groove	3069b	Lime	3×
Technic Brick 1 x 2 [2 Pin Holes]	32000	Dark Bluish Gray	4×
Technic Axle and Pin Connector Angled #3 - 157.5?	32016	Red	2×
Technic Brick 1 x 14 [13 Pin Holes]	32018	Black	8×
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]	32054	Red	14×
Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]	32064b	White	6×
Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]	32064b	Red	2×
Technic Axle 5	32073	Light Bluish Gray	2×
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole	32184	White	1×
Technic Beam 1 x 15 Thick	32278	Black	9×
Technic Beam 1 x 7 Thick	32524	Black	2×
Technic Beam 3 x 5 L-Shape Thick	32526	Black	2×
Technic Brick 6 x 8 with 4 x 6 Opening	32532	Black	1×
Technic Pin Long without Friction Ridges	32556	Tan	12×
Plate 1 x 8	3460	Black	5×
Plate 1 x 3	3623	White	4×
Minifig Head [Plain] [Blocked Open Stud]	3626b	Trans-Clear	1×
Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]	3660	White	6×
Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]	3660	Black	3×
Plate 1 x 6	3666	Dark Bluish Gray	1×
Slope 65° 2 x 2 x 2 with Bottom Tube	3678b	Black	2×
Technic Brick 1 x 2 [1 Pin Hole]	3700	Black	6×
Technic Brick 1 x 4 [3 Pin Holes]	3701	Black	25×
Technic Brick 1 x 16 [15 Pin Holes]	3703	White	4×
Technic Axle 4	3705	Black	1×
Technic Axle 12	3708	Black	1×
Technic Plate 2 x 4 [3 Holes]	3709	Light Bluish Gray	5×
Plate 1 x 4	3710	Black	11×
Technic Bush	3713	Light Bluish Gray	2×
Slope Inverted 33° 3 x 2 [Connections between Studs]	3747b	Black	2×
Slope Inverted 33° 3 x 2 [Connections between Studs]	3747b	White	2×
Technic Axle Pin without Friction Ridges Lengthwise	3749	Tan	2×
Plate Special 1 x 2 with 1 Stud without Groove (Jumper)	3794a	Dark Gray	5×
Plate 2 x 6	3795	White	4×
Steering Stand 1 x 2 with Black Steering Wheel	3829c01	White	1×
Plate 2 x 10	3832	Light Bluish Gray	1×
Hinge Brick 1 x 2 Base	3937	Light Bluish Gray	10×
Hinge Brick 1 x 2 Top Plate Thin	3938	White	9×
Brick Round 2 x 2 with Axle Hole	3941	Lime	6×
Brick Round 2 x 2 with Axle Hole	3941	White	5×
Cone 2 x 2 x 2, Open Stud	3942c	Black	2×
Cone 2 x 2 x 2, Open Stud	3942c	White	2×
Antenna 1 x 4 with Rounded Top	3957a	Trans-Clear	1×
Plate 6 x 6	3958	White	1×
Weapon Gun / Torch (Space) [with Grooves]	3959	Light Bluish Gray	2×
Equipment Radio [Extended Handle, Compact Speaker Grille]	3962b	Black	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Black	2×
Large Figure Weapon Spear, Drill with Axle and Hole	40340	Black	1×
Brick Special 1 x 1 with Headlight	4070	Black	2×
Hinge Brick 2 x 2 Locking with 2 Fingers Vertical and Axle Hole, 9 Teeth	40902	Light Bluish Gray	1×
Tile Round 2 x 2 with Bottom Cross	4150	Black	6×
Tile 1 x 8 with Groove	4162	White	4×
Wedge Curved 6 x 2 Right, Inner Ridges	41747	White	1×
Wedge Curved 6 x 2 Left, Inner Ridges	41748	White	1×
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes	42003	Black	6×
Brick Curved 6 x 1	42022	Black	4×
Brick Curved 6 x 1 Inverted	42023	Black	6×
Technic Pin 1/2	4274	Black	24×
Plate 2 x 16	4282	Black	1×
Slope 33° 3 x 1	4286	White	2×
Technic Axle Pin with Friction Ridges Lengthwise	43093	Black	8×
Panel 1 x 4 x 1 with Rounded Corners [Thick Wall]	43337	Black	1×
Box 2 x 2 x 2 [Hollow Studs]	4345b	Trans-Neon Green	1×
Box 2 x 2 x 2 Door with Slot	4346	White	1×
Wedge Curved 6 x 4 Triple	43712	White	1×
Technic Axle 7	44294	Light Bluish Gray	1×
Hinge Panel 2 x 4 x 3 1/3 Locking Dual 2 Fingers	44572	Trans-Red	1×
Plate 1 x 10	4477	Black	2×
Hinge Tile 1 x 4 Locking Dual 1 Fingers on Top [4 Locking Ridges]	44822	White	1×
Technic Axle 3	4519	Light Bluish Gray	3×
Wedge Curved 16 x 4 Triple	45301	Black	1×
Windscreen 10 x 6 x 2 Curved	45705	White	1×
Windscreen 10 x 6 x 2 Curved	45705	Trans-Orange	2×
Cone 1 x 1 [No Top Groove]	4589	Trans-Dark Blue	7×
Brick Special 1 x 1 Studs on 4 Sides	4733	Black	1×
Dish 2 x 2 Inverted [Radar]	4740	Trans-Dark Blue	1×
Wedge Curved Inverted 10 x 6 x 2 Cockpit	47406	Black	2×
Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End	47457	Light Bluish Gray	5×
Plate Special 2 x 2 with Wheels Holder Wide - Technic Pins	47720	Light Bluish Gray	2×
Wheel Arch, Curved Wedge 4 x 3 with 2 x 2 Opening and 4 Studs	47755	Orange	2×
Hinge 1 x 3 Triangle with Two Pins, 1 Locking Finger, Round Pin Holes	47973	Dark Bluish Gray	1×
Plate Special 1 x 2 [Side Handle Closed Ends]	48336	Black	2×
Bar 1L with Clip	48729a	Black	1×
Slope Curved 3 x 1 No Studs	50950	Black	6×
Wedge Curved 10 x 3 Left	50955	White	1×
Wedge Curved 10 x 3 Right	50956	White	1×
Flag 5 x 6 Hexagonal with C Clips	51000	White	1×
Wing Plate 20 x 56 with 6 x 10 Opening	54093	White	1×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Trans-Orange	2×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Black	4×
Technic Axle 8 with Stop	55013	Dark Bluish Gray	1×
Projectile, Technic Competition Arrow, Liftarm Shaft with Hollow Black Rubber End	57028c01	Light Bluish Gray	1×
Flexible Ribbed Hose 8mm Ends 19L	57539	Orange	2×
Flexible Ribbed Hose 8mm Ends 19L	57539	Black	2×
Launcher, Technic Competition Cannon Flat Bottom [Complete Assembly]	57796	Dark Bluish Gray	1×
Equipment Martian Hypersled with Pin (Mars Mission)	58843	White	1×
Brick Round Corner 10 x 10 with Slope 33° Edge, Axle Hole, Facet Cutout	58846	Black	2×
Cylinder 9 x 4 x 2 Tapered with Flat Bottom, Pin Holes	58947	Trans-Orange	1×
Technic Axle 5.5 with Stop [Rounded Short End]	59426	Dark Bluish Gray	1×
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]	6019	White	2×
Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips]	60470a	Yellow	2×
Technic Engine Block Half / Side Intake Panel	61069	White	4×
Wheel Hard Plastic Small (22mm D. x 24mm)	6118	Orange	4×
Hinge Brick 2 x 2 Top Plate Thin	6134	Light Bluish Gray	1×
Plate Round 1 x 1 with Solid Stud	6141	White	3×
Plate Round 1 x 1 with Solid Stud	6141	Orange	32×
Plate Round 1 x 1 with Solid Stud	6141	Trans-Dark Blue	2×
Plate Round 1 x 1 with Solid Stud	6141	Lime	7×
Slope Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges]	61678	Very Light Bluish Gray	14×
Plate Special 4 x 4 with Studs on One Edge [Plain]	6179	White	2×
Technic Pin Connector Round [Slotted]	62462	White	6×
Sticker Sheet 1 for Set 7644-1	63091	Unknown	1×
Sticker Sheet 2 for Set 7644-1	63430	Unknown	1×
Technic Brick 1 x 1 with Pin Hole	6541	Black	2×
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots	6558	Black	8×
Wedge 3 x 2 Right	6564	Black	1×
Wedge 3 x 2 Left	6565	Black	1×
Technic Axle 3 with Stud	6587	Dark Bluish Gray	2×
Tile 1 x 6 with Groove	6636	Black	8×
Technic Rubber Belt 24mm	85544	Red	1×
Slope Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes	88930	White	1×

Build DNA

Parts inventory insights for MX-81 Hypersonic Operations Aircraft

795 pieces puts this build +196% against the average Space set and +110% against the average 2008 release.

LEGOSPACE

Vs average Space set

+196%+526 parts

This set795

Average set269

Average Space set: 269 pieces across 91 other sets.

Vs average 2008 set

+110%+416 parts

This set795

Average set379

Average 2008 set: 379 pieces across 206 other sets.

Color profile

16different colors

Dominant color

Black

Black283x

37%

White201x

26%

Orange75x

10%

Light Bluish Gray52x

Unique parts

4.7 pieces per unique type

166

Repeat factor

Average pieces per unique type.

Most used part

Plate Round 1 x 1 with Solid Stud

44x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

This site is not affiliated with or endorsed by the LEGO Group.

Build Insights🧩166unique parts🎨16different colors📊49.7avg. parts per color🏆44×Plate Round 1 x 1 with Solid Stud

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