The standard center post does not fit over the top of either of the mini posts. All other fits good. I have sanded both over 30 minutes. Replace?

The standard center tube is the same size as A, B or C rocket engine. Sanding it for 30 minutes is much to long to make it fit. Used a used engine after you clean it out

Is there any way to use this to set fins that are up higher on the body, and not at the very bottom?

It depends on how high on the body they are. I've used this to set fins that are four inches or more above the base of the rocket, but those had a pretty big angle so I was able to clamp part of the fin very high on the plastic. I use a piece of wood from the sheet the fins are cut out of as a height guide so I get them all the same. If it's really high, you might be able to turn the rocket body and find upside-down and attach them that way (too far from the bottom could be close enough to the top of the body).

Does Estes sell the fins separately? I can't seem to find just fins.

Call Estes Customer Service 800 number and ask can they send it to you. Go to the website and find the contact us link

Can the fins be glued at an angle to induce spin?

The Estes PN 2231 Fin Alignment Guide is designed to only align fins vertically on the body tube. No provision was ever make to alter fin alignment as this would require flight testing of all Estes rockets to support that angling fins was OK to do on all products as it could potentially decrease the altitude performance on all products. Additionally, we do not and would not support the idea of angling fins on any Estes rocket unless that product was specifically designed to spin during launch, like PN 7258 Space Twister. The Estes Team

Join PRO & Unlock Exclusive Perks!

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan

Customer Services

About Us

Customer Support

Desert Online General Trading LLC

Warehouse # 7, 4th Street, Umm Ramool, Dubai, 30183, Dubai

Fin Alignment Guide Model Kit

Product ID: 76172289

Secure Transaction

Details

Brand
Estes
Age Range (Description)
10+ years
Colour
Assorted
Theme
Number
Item dimensions L x W x H
17.8 x 15.2 x

📏Fits 2mm & 3mm wood fins

⚙️Precision fin alignment

🛠️Easy assembly, no guesswork

Description

🚀 Align like a pro, launch like a legend!

STREAMLINED SETUP - No need for door frames or extra tools—easy-to-follow instructions get you flying faster.
LIGHTWEIGHT COMPACT - Portable 113g design fits perfectly in your toolkit or workspace without clutter.
EDUCATIONAL ENGAGING - Perfect for aspiring engineers aged 10+, turning hobby time into STEM mastery.
UNIVERSAL COMPATIBILITY - Works seamlessly with both 3/32″ (2 mm) and 1/8″ (3 mm) wood fins—versatility at its best.
PINPOINT PRECISION EVERY TIME - Eliminate guesswork with fast, accurate fin placement for flawless rocket builds.

The Estes Fin Alignment Guide Model Kit (Model 2231) is a precision tool designed to simplify and perfect the placement of wood fins on model rockets. Compatible with 2mm and 3mm fins, it offers fast, accurate alignment without the need for extra tools, making it ideal for hobbyists and young engineers alike.

Specifications

Educational Objective(s)	Engineering
Language:	English
Model Number	2231
Number of Game Players	1
Number of Puzzle Pieces	1
Assembly Required	Yes
Scale	1:1
Batteries Required	No
Batteries Included	No
Material Type(s)	Plastic
Remote Control Included?	No
Colour	Assorted
Product Dimensions	17.78 x 15.24 x 3.81 cm; 113.4 g
Item model number	2231
Manufacturer recommended age	10 years and up
Manufacturer	ESTES INDUSTRIES LLC
Item Weight	113 g

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$150.15

Duties & taxes incl.

British Virgin Islandsstore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews