Design Notes

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Design Notes

Model Rocket Design Notes

Dimensions

Engines

Type DiameterLengthCasing
MicroMaxx 6.3mm26mm1mm
Mini 13mm45mm1.6mm
18mm 18mm70mm2.6mm
Tube Inside Dim.Outside Dim.Length
  mm/inmm/incm/in
MM Stand 4.00 / 0.1574.50 / 0.1771.35 / 0.53

Body Tubes

Tube Inside Dim.Outside Dim.Circumference Estes ODASP OD
  mm/inmm/inmm/in   
T-MM 6.45 / 0.2547.16 / 0.28222.49 / 0.886  7.1
BT-5 13.2 / 0.51813.8 / 0.54443.35 / 1.707 13.7
BT-20 18.0 / 0.71018.7 / 0.73658.75 / 2.313 
BT-50 24.1 / 0.95024.8 / 0.97677.91 / 3.064 
BT-55 32.6 / 1.28333.7 / 1.325105.87 / 4.168 
BT-56 33.1 / 1.30434.2 / 1.346107.44 / 4.230 
BT-60 40.5 / 1.59541.6 / 1.637130.69 / 5.145 
BT-80 65.7 / 2.58866.0 / 2.600207.35 / 8.163 

BT-5 to T-MM downscale is 51.88%.

Component Notes

Nosecones

Nosecone plug should be approximately the diameter of the tube.

Couplers

Coupler construction video from Apogee.

Tube couplers should be ~2x the diameter of the tube.

  • At what power levels?

Fins

Orient grain of balsa wood along leading edge of fins.

Recovery Systems

Parachutes

Parallel shrouds may prevent tangling:

Parachute Shroud Patterns

Links

Inspirations

Analysis

Modeling

Recent Changes (All) | Edit SideBar Page last modified on April 05, 2021, at 06:58 AM Edit Page | Page History
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