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Aim for the ceiling and try not to miss!
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Scaling Calculator

FlisKits prides itself on helping the rocketeer to become self sufficient.  Recognizing that one of the joys of Micromaxx® is to downscale many of your favorite rocket kits, FlisKits has put together a "Scaling Calculator" to help you in your scratch building effort!  If you know the length of the body tube that you want to down scale to a common Micromaxx® tube, you can do so in seconds with this calculator.  The short section below explains how you read the chart then the chart provides you with all of the information you will need to scale down BT-5, 20, 50, 55, 60, 70, 80, & 101 tubes to standard BT-2, 2.5, 3, 4, 5, & 20 tubes for your downscale designs.  If you notice any problems with this chart or have other tubes you would like to see represented, be sure to send us an email and make your request!  Keep watch over these pages for exciting additions and promotions!
How to read the chart below
Body Tube Length BT-2
OD: 0.246"
BT-2.5
OD: 0.281"
BT-3
OD: 0.375"
This row shows the MMX Body Tube part# with its outside diameter
BT-5 OD: 0.541" 0.455 0.519 0.693 This row shows the standard body tube part# followed by its outside diameter THEN followed by the ratio need to scale it to the tube in that column (example, to scale a BT-5 to a BT-2 you would multiply all measurements by 0.455)
-0175 1.75" 0.796" 0.909" 1.213" These rows show you standard FlisKits lengths for these body tubes and what the scale length would be for any given MMX tube.   For example, the BT-5-08 tube would scale to a 5.545" BT-3 body tube
-08 8.00" 3.638" 4.155" 5.545"
-0944 9.44" 4.292" 4.903" 6.543"
-18 18.00" 8.185" 9.349" 12.477"

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The Ultimate Standard tube to Micromaxx® tube Scaling Calculator!
Body Tube Length BT-2
OD: 0.246"
BT-2.5
OD: 0.281"
BT-3
OD: 0.375"
BT-4
OD: 0.448"
BT-5
OD: 0.541"
BT-20
OD: 0.736"
BT-5 OD: 0.541" 0.455 0.519 0.693 0.828 1.000 1.360
-0175 1.75" 0.796" 0.909" 1.213" 1.449" 1.750" 2.381"
-08 8.00" 3.638" 4.155" 5.545" 6.625" 8.000" 10.884"
-0944 9.44" 4.292" 4.903" 6.543" 7.817" 9.440" 12.843"
-18 18.00" 8.185" 9.349" 12.477" 14.906" 18.000" 24.488"
               
BT-20 OD: 0.736" 0.334 0.382 0.510 0.609 0.735 1.000
-0275 2.75" 0.919" 1.050" 1.401" 1.674" 2.021" 2.750"
-0862 8.62" 2.881" 3.291" 4.392" 5.247" 6.336" 8.620"
-12 12.00" 4.011" 4.582" 6.114" 7.304" 8.821" 12.000"
-18 18.00" 6.016" 6.872" 9.171" 10.957" 13.231" 18.000"
               
BT-50 OD: 0.976" 0.252 0.288 0.384 0.459 0.554 0.754
-0275 2.75" 0.693" 0.792" 1.057" 1.262" 1.524" 2.074"
-04 4.00" 1.008" 1.152" 1.537" 1.836" 2.217" 3.016"
-09 9.00" 2.268" 2.591" 3.458" 4.131" 4.989" 6.787"
-18 18.00" 4.537" 5.182" 6.916" 8.262" 9.977" 13.574"
               
BT-55 OD: 1.325" 0.186 0.212 0.283 0.338 0.408 0.555
-0275 2.75" 0.511" 0.583" 0.778" 0.930" 1.123" 1.528"
-0850 8.50" 1.578" 1.803" 2.406" 2.874" 3.471" 4.722"
-18 18.00" 3.342" 3.817" 5.094" 6.086" 7.349" 9.998"
               
BT-60 OD: 1.637" 0.150 0.172 0.229 0.274 0.330 0.450
-004 0.40" 0.060" 0.069" 0.092" 0.109" 0.132" 0.180"
-0375 3.75" 0.564" 0.644" 0.859" 1.026" 1.239" 1.686"
-0850 8.50" 1.277" 1.459" 1.947" 2.326" 2.809" 3.822"
-1150 11.50" 1.728" 1.974" 2.634" 3.147" 3.801" 5.170"
-18 18.00" 2.705" 3.090" 4.123" 4.926" 5.949" 8.093"
               
BT-70 OD: 2.217" 0.111 0.127 0.169 0.202 0.244 0.332
-0125 1.25" 0.125" 0.143" 0.190" 0.227" 0.275" 0.373"
-09 9.00" 0.999" 1.141" 1.522" 1.819" 2.196" 2.988"
-18 18.00" 1.942" 2.218" 2.960" 3.536" 4.270" 5.810"
               
BT-80 OD: 2.600" 0.095 0.108 0.144 0.172 0.208 0.283
-04 4.00" 0.378" 0.432" 0.577" 0.689" 0.832" 1.132"
-09 9.00" 0.852" 0.973" 1.298" 1.551" 1.873" 2.548"
-18 18.00" 1.703" 1.945" 2.596" 3.102" 3.745" 5.095"
               
BT-101 OD: 3.938" 0.062 0.071 0.095 0.114 0.137 0.187
-0125 1.25" 0.078" 0.089" 0.119" 0.142" 0.172" 0.234"
-09 9.00" 0.562" 0.642" 0.857" 1.024" 1.236" 1.682"
-18 18.00" 1.124" 1.284" 1.714" 2.048" 2.473" 3.364"

Micromaxx® is a registered trademark of Quest Aerospace, Inc.
All rights reserved.
Used with permission.


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