Diameter:	0.92 inches
Fin Material:	Wood
Fin Span:	5.30 inches
Manufacturer:	Semroc
Model:	XFS-MRK1
Motor Size:	18 millimeters
Plan (YORP):	http://plans.rocketshoppe.com/fsi/fsiMRK-1/fsiMRK-1.htm
Power:	Low-Power
Product Type:	Kit
Recommended Motors:	A8-3, B6-4, C6-5
Recovery:	Parachute
Status:	Out-Of-Production
Style:	Sport

Reviews

• Semroc Penetrator By Dale Marshall (December 13, 2010)

  The Semroc "Penetrator" is an X-Kit. This kit is a reproduction of the Flight Systems Inc, kit first released in 1967. Construction The kit consists of: Balsa nose cone. 2 x 9" body tubes (0.921" OD). Tube coupler. Laser cut plywood fins (3). 18mm motor mount kit including block and metal hook. Kevlar+elastic shock cords. Waterslide decal. 12" plastic chute. ...

• Semroc Penetrator (xKit) By Chan Stevens (September 6, 2008)

  Semroc "X kits" are reintroduced reproductions of classic kits from Estes, Centuri and FSI but in very affordable format as essentially parts kits. These kits include just the parts and a basic header card, pointing the modeler to detailed instructions available online in the public domain, typically through JimZ's archives. This helps keep the cost down on these to the $10-15 range versus ...

• Semroc Penetrator By Chan Stevens (September 6, 2008)

  Semroc "X kits" are reintroduced reproductions of classic kits from Estes, Centuri and FSI but in very affordable format as essentially parts kits. These kits include just the parts and a basic header card, pointing the modeler to detailed instructions available online in the public domain, typically through JimZ's archives. This helps keep the cost down on these to the $10-15 range versus ...

Rocksim Design Files

• Semroc Penetrator