Estes Blast-Off Model Rocket Engine Assortment Bulk Pack - 24 Total Engines - 6 of Each: A8-3, B6-4, C6-3, and C6-5 (1672)

PLEASE NOTE: These are 18mm diameter engines. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility.

• The Blast-off Bulk Pack comes with an assortment of top-selling model rocket engines (24 total), along with 30 starters, 24 starter plugs, and ~75 squares of recovery wadding
• 24 engines total, 4 different types. Includes:
  • Six A8-3
  • Six B6-4
  • Six C6-3
  • Six C6-5
• Bulk packs are convenient and include everything you or your students need to prepare model rockets for launching
• Recommended for use with the AVG (Alpha, Viking, Generic), Alpha III, Tandem-X (Crossfire ISX, Amazon), or other compatible rocket kits
• This item will ship by US Postal Service only.

Technical Specifications:

• A8-3
  • Total Impulse: 2.50 N-sec
  • Time Delay: 3 Seconds
  • Max Lift Weight: 3.0 oz (85 g)
  • Max Thrust: 10.70 Newtons (2.4 lbs)
  • Thrust Duration: 0.50 Seconds
  • Length: 2.8 in. (7 cm)
  • Diameter: 18 mm
  • Weight: .55 oz. (15.6 g)
  • Propellant Weight: 0.14 oz (4.1 g)
• B6-4
  • Total Impulse: 5.00 N-sec
  • Time Delay: 4 Seconds
  • Max Lift Weight: 4.0 oz (113 g)
  • Max Thrust: 12.10 Newtons (2.7 lbs)
  • Thrust Duration: 0.80 Seconds
  • Length: 2.8 in. (7 cm)
  • Diameter: 18 mm
  • Weight: .63 oz. (17.9 g)
  • Propellant Weight: 0.23 oz (6.5 g)
• C6-3
  • Total Impulse: 10.00 N-sec
  • Time Delay: 3 Seconds
  • Max Lift Weight: 4.0 oz (113 g)
  • Max Thrust: 15.30 Newtons (3.4 lbs)
  • Thrust Duration: 1.60 Seconds
  • Length: 2.8 in. (7 cm)
  • Diameter: 18 mm
  • Weight: .83 oz. (23.5 g)
  • Propellant Weight: 0.43 oz (12.2 g)
• C6-5
  • Total Impulse: 10.00 N-sec
  • Time Delay: 5 Seconds
  • Max Lift Weight: 4.0 oz (113 g)
  • Max Thrust: 15.30 Newtons (3.4 lbs)
  • Thrust Duration: 1.60 Seconds
  • Length: 2.8 in. (7 cm)
  • Diameter: 18 mm
  • Weight: .85 oz. (24.1 g)
  • Propellant Weight: 0.43 oz (12.2 g)

Please verify that these engines are compatible with your model rocket before purchasing. This product is warranted by Estes against defects in materials or workmanship from one year of the original purchase. Please retain the warranty information included in the package so that you may reference it in the event that you receive a defective or malfunctioning product as the engines are not returnable by mail.