Semroc - PenetratorHome > Penetrator
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The FSI Penetrator was released in 1967 as their first kit. It originally had plywood fins and a hard-wood ogive nose cone. Designed to give altitudes of over 2500 feet with the long-burning D.915-6 engines, the Penetrator was a very high performer for the time.
The Semroc Penetrator™ xKit™ is a very close approximation of the original kit. Laser-cut plywood fins are provided using the original patterns as models. The earliest versions had a streamer, but they were soon replaced with a parachute because of the weight. The original Penetrator was designed for 21mm engines, but an 18mm conversion was provided in later kits. This model has the 18mm motor mount since 21mm engines are no longer available commercially.
Plans are not provided in this kit but they are available are online at http://www.oldrocketplans.com/fsi/fsiMRK-1/fsiMRK-1.htm, thanks to the tireless efforts of Scott Hansen at Ye Olde Rocket Plans.
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|  | Not Included - Additional Equipment Required to Build and Fly | | This item is a rocket kit and may require additional hobby supplies such as glue, knives etc. to construct the rocket. The kit will typically only include components, shock cord and parachute/streamer. Additional equipment will be required to fly the rocket, such as firewall, motor, motor case, launch pad, launch controller. |
| | Rocket Specifications| Length: | 21 in. / 53.34 cm | Diameter: | 0.92 in. / 2.34 cm |
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| Weight: | | Payload Bay: | |
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| Fins: | Thickness Unknown |
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| Suggested Motors
| Motor |
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Avg Imp(N/Ib) |
Burn Tm(s) |
Tot Imp(Ns) |
Alt(ft / m) |
Notes |
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Estes A8-3
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5/1.12 |
0.5 |
2.5 |
225 / 68.6 |
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Estes B6-4
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6.25/1.41 |
0.8 |
5 |
600 / 182.9 |
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Estes C6-5
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6.25/1.41 |
1.6 |
10 |
1,250 / 381.0 |
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| RS Part # |
Name |
Cost |
Stock Information |
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| SEM-XFS-MRK1 |
Kit |
£15.50 |
Special order item Delivery approx 60 days
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Rockets > Model Rockets > Skill Level 1
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