<commit_before>SEMROC Tube Diameter Chart
==========================

Estes-Compatible Series
-----------------------
All of these that match Estes designations have identical sizes.
Ones that don't have known Estes counterparts are marked with * in the comments.
SEMROC never listed a BT-56 - it was essentially identical to Centuri #13 though.

SERIES    ID        OD         RingID    RingOD
                               OD+.02    ID-.02
------    -----     -----      ------    ------
BT-1+     0.220     0.246      0.248     0.218    * Quest MMX motor mount tube
BT-2      0.255     0.281      0.283     0.253    * slips over MMX motor mount T-1+
BT-2+     0.297     0.310      0.312     0.295    * slips over BT-2
BT-3      0.349     0.375      0.377     0.347
BT-4      0.422     0.448      0.450     0.420    *
BT-4+     0.452     0.478      0.480     0.450    * slips over BT-4
BT-5      0.515     0.543      0.545     0.541
BT-5+     0.559     0.585      0.587     0.557    * slips over BT-5
BT-19     0.674     0.700      0.702     0.672    *
BT-20     0.710     0.736      0.738     0.708
BT-20+    0.744     0.770      0.772     0.742    * slips over BT-20
BT-30     0.725     0.767      0.769     0.723
BT-40     0.765     0.825      0.827     0.763
BT-50     0.950     0.976      0.978     0.948
BTH-50    0.950     0.992      0.994     0.948    * foil lined 24mm MMT
BT-50+    0.984     1.010      1.012     0.982    * but only .001 different from BT-51
BT-51     0.985     1.011      1.013     0.983
BT-52     0.988     1.014      1.016     0.986
BTH-52    1.140     1.220      1.222     1.138    * same as LT-115
BT-55     1.283     1.325      1.327     1.281
BT-56est  1.304     1.346      1.348     1.302    not carried by Semroc
BT-56sem  1.346     1.367      1.369     1.344    * believed to be erroneously derived from Estes sizing
BT-58     1.498     1.540      1.542     1.496
BT-60     1.595     1.637      1.639     1.593
BT-70     2.175     2.217      2.219     2.173
BTH-70    2.175     2.247      2.249     2.173    *
BT-80     2.558     2.600      2.602     2.556
BTH-80    2.558     2.640      2.642     2.556    * eRocket tube size chart disagrees with old SEMROC chart
BT-99     3.668     3.700      3.702     3.666    aka RT-99, only avail in very short ring
BT-100    3.702     3.744      3.746     3.700    
BT-101    3.896     3.938      3.940     3.894


Centuri-Compatible Series
-------------------------

SERIES    ID        OD         RingID    RingOD
                               OD+.02    ID-.02
------    -----     -----      ------    ------
#2        0.234     0.260      0.262     0.232
#5        0.515     0.543      0.545     0.513     Identical to Estes BT-5
#6        0.610     0.650      0.652     0.608
#7        0.715     0.759      0.761     0.713
#8        0.865     0.908      0.910     0.863
#8F       0.885     0.921      0.923     0.883
#9        0.950     0.998      1.000     0.948
#10       1.000     1.040      1.042     0.998
#11       1.130     1.170      1.172     1.128
#13       1.300     1.340      1.342     1.298
#16       1.600     1.640      1.642     1.598
#18       1.800     1.840      1.842     1.798
#20       2.000     2.040      2.042     1.998
#27       2.674     2.700      2.702     2.672
#36       3.600     3.690      3.692     3.598


Large Tube Series (compatible with old Centuri heavy wall tubes)
----------------------------------------------------------------
These are now listed on the eRocket/SEMROC site as LT-xxx

SERIES    ID        OD         RingID    RingOD
                               OD+.02    ID-.02
------    -----     -----      ------    ------
#085      0.865     0.945      0.947     0.863
#115      1.140     1.220      1.222     1.138
#125      1.250     1.340      1.342     1.248
#150      1.500     1.590      1.592     1.498
#175      1.750     1.840      1.842     1.748
#200      2.000     2.080      2.082     1.198
#225      2.250     2.340      2.342     2.248
#275      2.750     2.840      2.842     2.748

Clear Tube Series - CPT are Centuri sizes, PST are Estes sizes
--------------------------------------------------------------

CPT #7    0.715     0.759      0.761     0.713
CPT #8    0.865     0.908      0.910     0.863
CPT #10   wrong data on SEMROC legacy page

PST-50    0.950     0.976      0.978     0.948
PST-55    1.283     1.325      1.327     1.281
PST-65    1.750     1.774      1.776     1.748

Aerotech compatible tubes
-------------------------
See http://www.rocketryforum.com/showthread.php?70990-aerotech-tube-dimensions

AER-1.9   1.800     1.880      1.882     1.798    dimensions from Rocketarium.  AT gave 1.87 OD
AER-2.6   2.56      2.64       2.642     2.558    dimensions from Aerotech posted in TRF 16 Nov 2014
AER-4.0   3.90      3.987                         from TRF post 16 Nov 2014, AT quotes .005 tolerance

Blue Tube
---------
OK, now we have left the domain of things ever sold by SEMROC
SERIES    ID        OD         MaxLen    Mass      RingID    RingOD
                                                   OD+.003   ID-.003
------    -----     -----      ------    ------    --------  -------
Blu-29mm   1.136     1.276      48.0     235 g
Blu-38mm   1.504     1.616      48.0     295 g                         measured mass: 107 g for 18" len
Blu-54mm   2.135     2.260      48.0     410 g
Blu-2.6    2.551     2.671      48.0     490 g                         measured mass: 454 g
Blu-75mm   3.000     3.100      48.0     570 g
Blu-98mm   3.900     4.014      48.0     725 g
Blu-5.5    5.36      5.518      48.0     1078 g
Blu-6.0    5.973     6.079      48.0     1189 g<commit_msg>improve measured data for blue tube samples<commit_after>SEMROC Tube Diameter Chart
==========================

Estes-Compatible Series
-----------------------
All of these that match Estes designations have identical sizes.
Ones that don't have known Estes counterparts are marked with * in the comments.
SEMROC never listed a BT-56 - it was essentially identical to Centuri #13 though.

SERIES    ID        OD         RingID    RingOD
                               OD+.02    ID-.02
------    -----     -----      ------    ------
BT-1+     0.220     0.246      0.248     0.218    * Quest MMX motor mount tube
BT-2      0.255     0.281      0.283     0.253    * slips over MMX motor mount T-1+
BT-2+     0.297     0.310      0.312     0.295    * slips over BT-2
BT-3      0.349     0.375      0.377     0.347
BT-4      0.422     0.448      0.450     0.420    *
BT-4+     0.452     0.478      0.480     0.450    * slips over BT-4
BT-5      0.515     0.543      0.545     0.541
BT-5+     0.559     0.585      0.587     0.557    * slips over BT-5
BT-19     0.674     0.700      0.702     0.672    *
BT-20     0.710     0.736      0.738     0.708
BT-20+    0.744     0.770      0.772     0.742    * slips over BT-20
BT-30     0.725     0.767      0.769     0.723
BT-40     0.765     0.825      0.827     0.763
BT-50     0.950     0.976      0.978     0.948
BTH-50    0.950     0.992      0.994     0.948    * foil lined 24mm MMT
BT-50+    0.984     1.010      1.012     0.982    * but only .001 different from BT-51
BT-51     0.985     1.011      1.013     0.983
BT-52     0.988     1.014      1.016     0.986
BTH-52    1.140     1.220      1.222     1.138    * same as LT-115
BT-55     1.283     1.325      1.327     1.281
BT-56est  1.304     1.346      1.348     1.302    not carried by Semroc
BT-56sem  1.346     1.367      1.369     1.344    * believed to be erroneously derived from Estes sizing
BT-58     1.498     1.540      1.542     1.496
BT-60     1.595     1.637      1.639     1.593
BT-70     2.175     2.217      2.219     2.173
BTH-70    2.175     2.247      2.249     2.173    *
BT-80     2.558     2.600      2.602     2.556
BTH-80    2.558     2.640      2.642     2.556    * eRocket tube size chart disagrees with old SEMROC chart
BT-99     3.668     3.700      3.702     3.666    aka RT-99, only avail in very short ring
BT-100    3.702     3.744      3.746     3.700    
BT-101    3.896     3.938      3.940     3.894


Centuri-Compatible Series
-------------------------

SERIES    ID        OD         RingID    RingOD
                               OD+.02    ID-.02
------    -----     -----      ------    ------
#2        0.234     0.260      0.262     0.232
#5        0.515     0.543      0.545     0.513     Identical to Estes BT-5
#6        0.610     0.650      0.652     0.608
#7        0.715     0.759      0.761     0.713
#8        0.865     0.908      0.910     0.863
#8F       0.885     0.921      0.923     0.883
#9        0.950     0.998      1.000     0.948
#10       1.000     1.040      1.042     0.998
#11       1.130     1.170      1.172     1.128
#13       1.300     1.340      1.342     1.298
#16       1.600     1.640      1.642     1.598
#18       1.800     1.840      1.842     1.798
#20       2.000     2.040      2.042     1.998
#27       2.674     2.700      2.702     2.672
#36       3.600     3.690      3.692     3.598


Large Tube Series (compatible with old Centuri heavy wall tubes)
----------------------------------------------------------------
These are now listed on the eRocket/SEMROC site as LT-xxx

SERIES    ID        OD         RingID    RingOD
                               OD+.02    ID-.02
------    -----     -----      ------    ------
#085      0.865     0.945      0.947     0.863
#115      1.140     1.220      1.222     1.138
#125      1.250     1.340      1.342     1.248
#150      1.500     1.590      1.592     1.498
#175      1.750     1.840      1.842     1.748
#200      2.000     2.080      2.082     1.198
#225      2.250     2.340      2.342     2.248
#275      2.750     2.840      2.842     2.748

Clear Tube Series - CPT are Centuri sizes, PST are Estes sizes
--------------------------------------------------------------

CPT #7    0.715     0.759      0.761     0.713
CPT #8    0.865     0.908      0.910     0.863
CPT #10   wrong data on SEMROC legacy page

PST-50    0.950     0.976      0.978     0.948
PST-55    1.283     1.325      1.327     1.281
PST-65    1.750     1.774      1.776     1.748

Aerotech compatible tubes
-------------------------
See http://www.rocketryforum.com/showthread.php?70990-aerotech-tube-dimensions

AER-1.9   1.800     1.880      1.882     1.798    dimensions from Rocketarium.  AT gave 1.87 OD
AER-2.6   2.56      2.64       2.642     2.558    dimensions from Aerotech posted in TRF 16 Nov 2014
AER-4.0   3.90      3.987                         from TRF post 16 Nov 2014, AT quotes .005 tolerance

Blue Tube
---------
OK, now we have left the domain of things ever sold by SEMROC
SERIES    ID        OD         MaxLen    Mass      RingID    RingOD
                                                   OD+.003   ID-.003
------    -----     -----      ------    ------    --------  -------
Blu-29mm   1.136     1.276      48.0     235 g                         mass reported by Apogee
Blu-38mm   1.504     1.616      48.0     295 g                         measured mass: 284 g
Blu-54mm   2.135     2.260      48.0     410 g                         measured masses: 389.0, 388.0 (2 samples)
Blu-2.6    2.551     2.671      48.0     490 g                         measured mass: 454, 468 g (2 samples)
Blu-75mm   3.000     3.100      48.0     570 g                         measured mass: 553 g
Blu-98mm   3.900     4.014      48.0     725 g                         mass reported by Coker: 696 g
Blu-5.5    5.36      5.518      48.0     1078 g                        mass reported by Apogee, suspect!
Blu-6.0    5.973     6.079      48.0     1189 g                        mass reported by Apogee, suspect!
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