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Pro 75

With the Pro75 and Pro98 line of reloadable rocket motors, CTI pioneered cross-brand compatible reloads that fit, and are industry-certified in, both ProX and RMS hardware. Each reload is supplied with o-rings that allow the reload to be used in either brand of hardware, giving you more reload choices and saving you big bucks in the process. Of course, we designed features into our hardware that we feel make it superior, like ACME-threaded retaining rings with an accessory wrench to make reloading easy on your hands, and gland-style o-ring seals for reliability. Pro75 reloads are even priced lower than the competition, saving you more money.

Currently available in two through six grain sizes and nine propellant types! Try a Pro75 motor in your rocket – you won’t be disappointed.

Casing size Type Total impulse (Ns) Burn duration (s) Peak thrust (lb) Delay times (s) Propellant type
P75 2G 2486K510-P 2486.00 Ns (559.35 lb-s) 4.84 s 689.75 N (155.19 lb) plugged Classic™
P75 2G 2653L585-P 2653.40 Ns (597.01 lb-s) 4.55 s 679.80 N (152.95 lb) plugged Imax™
P75 2G 2412K1085-P 2412.0 Ns (542.2 lb.s) 2.12 s 1024.0 N (230.2 lb) plugged White Thunder™
P75 2G 2406K555-P 2406.2 Ns (540.9 lb-s) 4.33 s 646.7 N (145.4 lb) plugged White™
P75 2G 2330K2000-P 2329.9 N-s (523.8 lb.s) 1.14 s 2480.9 N (557.7 lb) plugged Vmax™
P75 2G 1955K735-P 1955.2 N-s (439.5 lb.s) 2.66 s 911.0 N (204.8 lb) plugged Skidmark™
P75 2G 2856L910-P 2856.1 N-s (642.1 lb.s) 3.15 s 1086.1 N (244.2 lb) plugged C-Star™
P75 2G 2430K661-P 2430.4 N-s (546.4 lb.s) 3.68 s 761.3 N (171.1 lb) plugged Blue Streak™
P75 3G 3757L800-P 3757.00 Ns (845.33 lb-s) 4.67 s 1286.05 N (289.36 lb) plugged Classic™
P75 3G 3618L995-P 3618.00 Ns (814.05 lb-s) 3.63 s 1404.50 N (316.01 lb) plugged Red Lightning™
P75 3G 3660L1720-P 3660.0 Ns (822.8 lb.s) 2.00 s 1946.0 N (437.5 lb) plugged White Thunder™
P75 3G 2946L820-P 2945.6 Ns (662.2 lb.s) 3.59 s 984.8 N (221.4 lb) plugged Skidmark™
P75 3G 3683L851-P 3683.2 Ns (828.0 lb-s) 4.34 s 989.9 N (222.5 lb) plugged White™
P75 3G 3300L3200-P 3300.3 N-s (741.9 lb.s) 1.03 s 3723.0 N (837.0 lb) plugged Vmax™
P75 3G 3419L645-P 3419.8 N-s (768.8 lb.s) 5.30 s 776.6 N (174.6 lb) plugged Green3™
P75 3G 4263L1350-P 4263.1 N-s (958.4 lb.s) 3.16 s 1672.5 N (376.0 lb) plugged C-Star™
P75 3G 3727L1050-P 3727.0 N-s (837.9 lb.s) 3.56 s 1208.4 N (271.7 lb) plugged Blue Streak™
P75 4G 5015L1115-P 5015.00 Ns (1128.38 lb-s) 4.48 s 1713.25 N (385.48 lb) plugged Classic™
P75 4G 4895L1395-P 4895.40 Ns (1101.46 lb-s) 3.51 s 1779.90 N (400.48 lb) plugged Blue Streak™
P75 4G 4025L1355-P 4025.50 Ns (905.74 lb-s) 2.97 s 1792.20 N (403.25 lb) plugged Smoky Sam™
P75 4G 4864L2375-P 4864.0 Ns (1093.5 lb.s) 1.90 s 2798.0 N (629.0 lb) plugged White Thunder™
P75 4G 5506M1230-P 5506.5 Ns (1237.9 lb-s) 4.48 s 1586.6 N (356.7 lb) plugged Imax™
P75 4G 5472M2250-P 5472.2 Ns (1230.2 lb-s) 2.41 s 2960.2 N (665.5 lb) plugged C-Star™
P75 4G 5604M1830-P 5603.7 N-s (1259.8 lb.s) 3.07 s 2342.3 N (526.6 lb) plugged C-Star™
P75 4G 5198M1101-P 5197.6 N-s (1168.5 lb.s) 4.68 s 1475.0 N (331.6 lb) plugged White™
P75 5G 6251M1400-P 6251.00 Ns (1406.48 lb-s) 4.47 s 2291.75 N (515.64 lb) plugged Classic™
P75 5G 6819M1540-P 6819.40 Ns (1534.37 lb-s) 4.44 s 2328.80 N (523.98 lb) plugged Imax™
P75 5G 4828L1410-P 4828.30 Ns (1086.37 lb-s) 3.43 s 1669.90 N (375.73 lb) plugged Skidmark™
P75 5G 6026M1670-P 6041.70 Ns (1359.38 lb-s) 3.63 s 2232.10 N (502.22 lb) plugged Blue Streak™
P75 5G 6128M1810-P 6132.00 Ns (1379.70 lb-s) 3.39 s 2158.60 N (485.69 lb) plugged Red Lightning™
P75 5G 5069L1685-P 5069.30 Ns (1140.59 lb-s) 3.01 s 2569.90 N (578.23 lb) plugged Smoky Sam™
P75 5G 6438M1300-P 6438.2 Ns (1447.4 lb-s) 4.94 s 2826.9 N (635.5 lb) plugged Imax/Dual Thrust™
P75 5G 6118M3100-P 6117.8 Ns (1375.3 lb-s) 1.99 s 3709.2 N (833.9 lb) plugged White Thunder™
P75 5G 6162M1675-P 6162.0 Ns (1385.3 lb-s) 3.68 s 2185.9 N (491.4 lb) plugged Pink™
P75 5G 6268M1401-P 6268.3 N-s (1409.2 lb.s) 4.49 s 1669.5 N (375.3 lb) plugged White™
P75 5G 5880M1160-P 5880.2 N-s (1321.9 lb.s) 5.07 s 1381.7N (310.6 lb) plugged Green3™
P75 5G 4937L395-P 4936.8 N-s (1109.8 lb.s) 12.54 s 587.5 N (132.1 lb) plugged Mellow™
P75 6G 5933M1770-P 5933.4 Ns (1333.9 lb.s) 3.34 s 2195.2 N (493.5 lb) plugged Skidmark™
P75 6G 7455M2150-P 7455.4 Ns (1676.0 lb-s) 3.47 s 2614.1 N (587.7 lb) plugged Red Lightning™
P75 6G 7388M2045-P 7388.0 Ns (1660.9 lb-s) 3.61 s 2951.8 N (663.6 lb) plugged Blue Streak™
P75 6G 7545M1590-P 7544.6 Ns (1696.1 lb-s) 4.74 s 2499.2 N (561.8 lb) plugged Classic™
P75 6G 6800M3700-P 6800.3 Ns (1528.8 lb-s) 1.83 s 4158.1 N (934.8 lb) plugged White Thunder™
P75 6G 6287M2075-P 6286.6 Ns (1413.3 lb-s) 3.03 s 3452.5 N (776.2 lb) plugged Smoky Sam™
P75 6G 8429M2020-P 8429.4 Ns (1895.0 lb.s) 4.17 s 2680.4 N (602.6 lb) plugged Imax™
P75 6G 7521M840-P 7521.2 Ns (1690.8 lb-s) 9.00 s 2042.5 N (459.2 lb) plugged White™ Longburn™
P75 6GXL 6827M2080-P 6827.3 Ns (1534.8 lb.s) 3.28 s 2611.3 N (587.0 lb) plugged Skidmark™
P75 6GXL 8187M1545-P 8186.7 Ns (1840.4 lb.s) 5.29 s 1840.2 N (413.7 lb) plugged Green3™
P75 6GXL 9977M2245-P 9976.7 N-s (2242.8 lb.s) 4.29 s 3357.0 N (754.7 lb) plugged Imax™