ESTES 1903 – Maxi Alpha3 Manual
Summary
This comprehensive manual provides detailed instructions for assembling a high-quality model rocket kit. It guides hobbyists through every stage, from precise component fitting and structural assembly (including engine mounting and body construction) to safe launch procedures, troubleshooting misfires, and best practice tips. Perfect for experienced model rocketry enthusiasts and skilled builders looking to construct, test, and successfully launch a detailed, operational replica.
Page 1 Text Content
1NCHES
ma Xi alphn SKILL LEVEL 2 - Recommended for individuals
ADAMON COMPANY
三 SETES INDUSTRIES
PEINSRCSE，C 口 日 4 空 马 口 USA
Dammy Engine Casing (type EC-6} ...……... 35012 Centering Rings (type AR-5055) ...,.. 30166 Retainer Tube {type BT-52AG) ..…...…-.……….... 30378 Engine Hoider (type EH-2) .......、....，,. 35025 Engine Block (type AR-2050) ... .. -5 30164
D12-3 (First Flightj, D12-5
Engine Tube (type BT-50L) ...-,......、... 30366 Bottom Fin Ring .1 33212
TOOLS AND MATERIALS
Fins. 33210
Top Fin Ring .ee 33211
In addition to tihe parts included in this kit you w 放 need “white”
Short Body Tube (type WBT-80MA) 30431
glue (such as El Imers, Wilhold etc a modeling knife，masking
Long Body Tubes (type WBT-80A) .........,. 30429
iape, fine sandpaper, pencil rulen & gioss red enamel spray
Tube Coupler ttype JT-80C) ..... 加
paint.
Pie-Cut Ring (type TA-1321} . . ， ， BEFORE YOU START Launch Lug (type LL-3B) .......-.--... Shock Cord 人 (type SC-2M 中 .9
IMPORTANT: Read each assembly step thoroughtiy before
Shroud Line (type SLT-144)
doing the work for that step. Test fit parts before applying any
Tape Discs (type TD-3F) .
引 ue. 上 f necessary, lightly sand the inside edge of the tube ends
Parachute {type PK-24A) ...-，- 。
to insure a good stip fit, Do not attempt to buitd this modef
Nose Cone {type PNC--80K) 和
with any cement other than the type indicated above.
站 一 Decal {type KD-1321).. .ee 本 吃 贡 各 有 口 卫 写 庆 六 二 一 玉 且 几 风 口 只 四 六
Page Summary Contents For ESTES 1903 – Maxi Alpha3 Manual
Manual Details
| Brand | Estes |
|---|---|
| Pages | 6 |
| File Size | 18.86 MB |
| Published | June 03, 2026 |
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Frequently Asked Questions
What is required besides the included parts?
You need a 'white' Short Body Tube (WBT-80MA) and glue like Elmer's or Wilhold, along with modeling knife, masking tape, fine sandpaper, pencil ruler & gloss red enamel spray paint.
How should I prepare for assembly?
Read each step thoroughly, test fit parts before gluing, and lightly sand the inside edge of tube ends to ensure a good slip fit.
What is the minimum safe launch distance?
Move everyone away 15 feet (5 meters) from your rocket. The igniter wire length dictates placement.
What should I do if my rocket misfires?
Remove the safety key, wait one minute, remove the expended igniter, install a new one making sure the coated tip contacts the propellant, and repeat the sequence.