SUMO 4'' Rocket Kit

Name: SUMO 4'' Rocket Kit
Brand: Aerotech
Price: 121.99 USD
Availability: InStock
Rating: 4.5 (15 reviews)

Item Number: aro89024

4.5 Stars (15 Reviews)

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SUMO 4'' Rocket Kit

Item Number: aro89024

4.5 Stars (15)

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About This Item

Product Details

Sumo is a Skill Level 3 Advanced High Power Model Rocket Designed by AeroTech. Adult Supervision Required for Those Under 16 Years of Age.

Product Rank

#10 in Level Pro
#50 in Rocket Kits
#202 in Model Rockets

Includes

One Sumo Rocket

Features

For those who love to see a short, fat rocket with slow lift offs.
Over 3 feet tall!
Labyrinth II "no wadding needed" ejection system.
Precision Airfoil molded fins.
Fin-Lok fin mounting system.
Pistion ejection.
Roaring 2500 foot high flights!
Parachute recovery.
New 9oz, 1-piece gray plastic, 4:1 ogive nose cone.
Can use AeroTech's RMS reloadable motors.
Designed for "G" and "H" composite hobby rocket motors.
Rugged construction!
Super-sized, self-adhesive Sumo decals.
Construction and launching instructions provided.

Requirements & Suggestions

How To Build a Model Rocket
Recommended AeroTech Motors
Single Use:

G40-4W (ARO74004)
G80-4T
G35-4W
G38-4FJ (ARO73804) )

Reloadable:

G64-4W (ARO76404)
H128W-S (Easy Access)
H180W-M (Easy Access)
H97J-S (Easy Access)
H238T-S (Easy Access)
H165R-S (Easy Access)
H210R-M (Easy Access)

12" Ruler (with 1/16" resolution)
Medium Viscosity Cyanoacrylate Cement
5 to 15 Minute Cure Epoxy
Hobby Knife (EXL16018) (EXL16001) (TES281202) (EXL19018)
1/8" Wood Dowel (atleast 12" long)
Sandpaper
Masking Tape (3/4" and 1" wide)
Launch System

Specifications

Length: 39" (99cm)
Diameter: 4" (10.1cm)
Weight: 32oz (907g)
Recovery: 42" Parachute
Motor Mount: 29mm
Stages: 1
Aerotech Product Number: 89024

Reviews

Review Summary

The reviews highlight that this rocket kit is notably heavy for its size, which makes it suitable for smaller fields but requires more powerful and costly motors to achieve desired altitudes, ranging from 100 to 1000 feet depending on the motor used. While it is praised for durability, ease of build, and impressive performance during demo flights, there are concerns about the piston ejection system being too tight and needing adjustment, as well as cosmetic issues with the fins and decals not accepting clear coat well. Overall, it is considered a fun and high-quality mid-power rocket, though some users experienced challenges with recovery due to its high and fast flights.

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Great rocket, but...

By: tank1984714

The contents of this kit seem to be a little lacking compared to the other Aerotech kits. The fins will need quite a bit of cosmetic work around the base. The flashing left over from the mold was pretty sloppy. Be warned that if you plan to clear coat this rocket after painting, the decals do not accept the clear coat at all. The clear will just pool on top of them giving you a rippled water look. Also the piston seemed to be way too tight and needed quite a bit of work to get a better free flowing fit. Overall I would still say this is going to be a very fun rocket and seems durable enough to last for many flights.

(30)

Liftoff weight

By: 01rocket (01rocket@gte.net)

This rocket is among the heaviest 4 inch rockets of its type. That makes it easier to fly in a small field and it certainly is very easy to build. However it also means you need more motor (cost) to fly it. LOC Precision kits with wood fins are lighter and U.S. Rockets kits are lighter still while being strong too. More motor mount diversity too. The Sumo is a good kit.

(12)

Great Demo Bird

By: gardei (Penns Creek, PA)

Big enough to impress, heavy enough not to outfly a small field. This is a great rocket to use for those demo flights where you don't have much room to work with. Does about 1000 feet depending on which G motor you use, and of course you can stick an 29mm H or I in it too for a Level 1 cert flight.

(3)