Introduction: Gemini Titan II Model Rocket

By

https://www.ebay.com/itm/Gemini-Titan-model-rocket-parts-kit-size-BT-70/283975738360

Supplies

This is not a complete kit.

You will need to order common rocket parts to complete the model

Kit Includes:

Gemini Capsule

Gemini Shroud

Engine shrouds X2

New light weight Clear fin ring

Clear Acrylic fins X4

Acrylic fin weld

Tail dressing 4 parts

Screw Eye

Laser cut bulkheads:

RA-2050 Ring Adapters

BT20 to BT 50 x 4

RA-6070 Ring Adapter

BT60 to BT70 x 2

RA-2060 Ring Adapter BT20 to BT60

RA-2070 Ring Adapter BT20 to BT70

You will need to order parts below from www.erockets.biz

BT-70KD Body Tube 17.5” Long

BT-20B Body Tube 8.65” Long

BT-60K Body Tube 7” Long

BT-20G Body Tube 3.5” Long

LL-2D Launch Lug1/8” X8” Long

EB-20A Engine Thrust Ring

WD-112 Wood Dowel 1/12" x 12"

JT-50B Stage Coupler 0.437” Long

JT-70A Stage Coupler 1.25” Long

EC-218 Shock Cord

CP-24Y Parachute 24”yellow

SLT-1D 144” shroud line

MC-727 Empty Engine Case .7”X2.75” 1

Skin Kit BT-70 from

https://www.ebay.com/itm/Accur8-Gemini-Titan-8-Skin-Kit-Build-Your-Own-1-54-BT-70-Scale-Model-Rocket/222307963210?hash=item33c296514a:g:jl4AAOSwnbZYIM6u

or

https://stickershock23.com/product/gemini-titan/ 7 1/8 " Circumference

Instruction's: spacemodeling.org/jimz/estes/k-21.pdf

Step 1:

ORIGINAL INSTRUCTIONS AT : spacemodeling.org/jimz/estes/k-21.pdf

Attachments

Step 2: Get All the Parts Together for the Engine Section.

The coupler the short bt-50 rings and the engine tubes and engine block are not included in my parts kit.

2@ WD-112 Wood Dowel 1/12" x 12"
2@ JT-50B Stage Coupler 0.437” Long

JT-70A Stage Coupler 1.25” Long

Step 3: Glue the Engine Bulkheads Into the Coupler ( Make Sure to Align Them )

pressing them in can take some force .

Step 4: Place Engine Tubes in Bulkheads and Glue In

Step 5: Measure 15 Mm From the Bulkhead and Mark Engine Tubes. Glue 2 of the 4 BT20/50 Rings.

Step 6: Using an Engine Mark a Ring 10mm From End

MC-727 Empty Engine Case .7”X2.75”

Step 7: Peal the Outer Layer Off the Engine Blocks, and Glue Using the Engine to Push the Engine Block Into Place in Both Tubes. You May Want to Use the 1/8 Dowel With Glue on Tip to Glue the Top and Bottom of Engine Block Toughly.

Step 8: Glue the Paper Rings to the 20/50 Bulkheads and Glue the Other 2 Rings to Bottom.

Step 9: Glue the 2 Engine Faring's to Bottom of Engine Tubes

Step 10: Make Sure to Align the Engine Faring's.

Step 11: Glue Engine Detail Pieces on and Using the Thin Dowel Cut and Glue the Support Structure on Engines

Step 12: Find All the Body Parts.

BT-70KD Body Tube 17.5” Long

BT-20B Body Tube 8.65” Long

BT-60K Body Tube 7” Long

2@ BT-20G Body Tube 3.5” Long

EC-218 Shock Cord

CP-24Y Parachute 24”yellow

SLT-1D 144” shroud line

Step 13: Find the BT-60 Tube Glue the 60/70 Rings to the Bottom and Slide the Second 60/70 Ring Down Tube It Will Fit Under the Gemini Shroud. Place Glue Around the Top of the BT-60 Tube and Slide the Gemini Shroud On.

RA-6070 Ring Adapter BT60 to BT70

BT-60K Body Tube 7” Long

and the Gemini Shroud

Step 14: Test Fit the Gemini Capsule and Adjust Shroud If Needed.

Step 15: Glue the 20/60 Ring Into Bottom of Shroud Tube Assembly.

RA-2060 Ring Adapter BT20 to BT60

Step 16: Glue the 20/70 Ring Onto the BT-20 8.65" Tube, Then Glue It to Bottom of Shroud Tube in the 20/60. Then Glue and Slide in the Assembly Into the Outer BT-70 Tube.

BT-20B Body Tube 8.65” Long

RA-2070 Ring Adapter BT20 to BT70

Step 17: Take the Screw Eye Make a Pilot Hole With an Exacto Blade Point in Center of Gemini Capsule and Glue in Place With CA Glue.

Step 18: Parachute and Shroud Cord

Step 19: Clear Fin Ring and Attach the The Clear Fins With the Acrylic Weld

Step 20: Apply StickerShock23 Gemini Titan Sticker 7 1/8 " Circumference

https://stickershock23.com/product/gemini-titan/

Step 21: Mask and Paint the Engine Section With Chrome or Silver Paint,

Step 22: Glue in the Engine Section to Body Tube.

Step 23: Attach Launch Lug.