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All Rocksim Designs (2320 of 3219)Tag - Manufacturer:Scratch

EXP1_revised Rocksim Design File

• Manufacturer: Scratch

Comments: First attempt at a mimimum diameter, high performance design. Uses a rear engine ejection scheme involving a modified safety pin for straight down and fast descents. Designed, built, and flown over 20 years ago, never to be seen again...

Designer: Paul H. Demus

Download scratch_exp1b.rkt

To use the design file above, you need a copy of Rocksim, a rocket design and simulation program.

Kit Name: Scratch - EXP1_revised {Scratch}

CG: 5.4618 inches from front
CP: 9.3819 inches from front
Margin: 4.02 Overstable

Parts Breakdown

• EXP1 Elliptical Nose Cone
• Custom Estes BT 1090 1.0173 inches 25.84 mm 0.7250 inches 18.42 mm 0.7250 inches 18.42 mm 0.9500 inches 24.13 mm 0.9500 inches 24.13 mm 0.2400 inches 6.10 mm 0.0000 inches 0.00 mm 1.5950 inches 40.51 mm 2.5550 inches 64.90 mm 1.8000 inches 45.72 mm 1.5200 Body Tube [Length: 8.25 in]
• Apogee EB-50 Ring
• EXP1_revised Freeform Fin Set Freeform Fin Set
• DIY Eye Hook #4 Mass Object
• Custom Mass Object
• Custom Mass Object
• Custom Mass Object

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