Shastas Rocket Site
North Coast Rocketry

NCR SA 14 Archer

NCR Model #3510

Additional Information

Description

  • Realistic Ship to air missile styling.
  • Laser cut plywood through the wall fins.
  • Easy to assemble and fly.
  • Length: 47″
  • Diameter: 2.64″
  • Weight: 19.5 oz.
  • # of Fins: 4
  • Nose Cone: 4:1 Ogive
  • Recovery: 36″ Parachute
  • Parts List
    • Body Tube – White Cardboard Tube, 3.9″ x 34″ with 4 slots 1/8″ wide x 4″ long and 1/2″ from aft end
    • Payload Tube – White Cardboard Tube, 3.9″ x 7″
    • Tube Coupler – Brown Cardboard Tube, 3-7/8″ x 7″ x 1/16″
    • Nose Cone – White Plastic, 4″ OD x 20.5″ L, with shoulder 3.943″ x 4″
    • Centering Rings – 1/4″ x 3-7/8″
    • Motor Tube – Brown Cardboard Tube, 31.5″ x 29mm x 17″
    • Launch Lugs – Brown Cardboard Tubes, 5/16″ OD x 1/4″ ID x 1″ L (2)
    • Fin Set – Wooden (4)
    • Decal
    • Instruction Sheets
    • Strakes – Wood 1/16″ x 2″ x 34″ (2)
    • Wire Cable – Braided Steel, 1/16″ x 21″
  • Recommended Engines
    • Estes – F15-4
    • Aerotech – F20-4W, F23-4FJ, F25-6W, F27-4R, F50-6T, F62-6T, F67-6W, G40-7W, G54-6W, G64-8W, G71-7R, G74-6W, G75-7M, G76-7G, G77-7R, G78-7G, G80-7T

Instructions

Photo Gallery

Build History

  • 06/13/1999 – Purchased NCR SA-14 from Hobbylinc for $55.79 (Retail – $79.99)
  • 12/05/2002 – Took pictures of package and components. Measured components and recorded them in Book #2 page 44.
  • 12/06/2002 – Sanded centering rings to fit 29 mm engine tube. Epoxied rear centering ring in place.
  • 12/22/2002 – Epoxied forward and middle centering ring into each position.
  • 12/23/2002 – Spread epoxy at 16″, 4-1/2″, and 3/4″ from rear on the inside of body tube. Attached one end of cable to screw eye and other end to shock cord. Using an 11mm 6-sided socket screwed the screw eye into the centering ring hole. Secured screw eye with epoxy.
  • 12/24/2002 – Cut 34″ slats in half. marked 1″ off bottom edge of each end. Cut a diagonal in each end to make 4 strakes. Rounded leading and tapered trailing edges of fins using a dremel tool. Taped fins with masking tape.
  • 12/25/2002 – Cut tape holding strakes together and removed all tape except on root edge. Epoxied tube coupler into lower body tube. Epoxied upper body tube over tube coupler.
  • 07/20/2003 – Sprayed fins and strakes with gray primer.
  • 07/24/2003 – Sanded fins and strakes with 400 grit sandpaper.
  • 08/18/2003 – Wiped with damp sponge allowed to dry and painted the fins with a second coat of Krylon #1318 gray primer
  • 06/30/2007 – Removed tape from root edges
  • 07/18/2007 – Using ASP 2 hour epoxy, epoxied 4 fins through body tube slots and onto the motor mount tube
  • 08/05/2007 – Filleted fin joints with 5 minute epoxy.
  • 05/16/2020 – Glued 4 strakes 8″ from aft end in line with fins.
  • 05/17/2020 – Filleted strake joints. Drilled 1/8″ holes into aft and middle centering rings. Epoxied 1010 buttons into each hole.
  • 05/18/2020 – Tied end of shock cord to nose cone. Except for paint and decals, this completes construction of North Cost Rocketry SA-14 Archer model rocket.
  • 03/05/2022 – Spray painted entire model with red prime.
  • 12/11/2022 – Cleaned model with alcohol wipers. Epoxied fins to body tube with 2-Ton epoxy.
  • 12/12/2022 – Filleted 2 fin joints with 2-Ton epoxy.
  • 12/13/2022 – Filleted last 2 fin joints. Cut strake stock sheets at an angle cut from one end side to a mark 1″ fron other end side. Sanded ends round with 80 grit sandpaper and then sanded smooth with yellow sanding stick. Masked root edges of all 4 strakes. Sanded strakes with 220 grit sandpaper and then with 1500 grit sandpaper. Cleaned strakes with alcohol wiper. Spray painted 3 sides of strakes with Rust-oleun #327814 gloss white with primer let dry and turned them over and painted last side.
  • 12/14/2022 – Marked tube coupler at midpoint and drew completely around tube at the midpoint. Epoxied payload tube so 1/2 of tube coupler would be attached. Screwed screw eye into bulkhead and applied epoxy to the joint and then epoxied the bulkhead into the aft end of the payload tube with the screw eye facing out.
  • 12/15/2022 – Marked strake reference lines on main body tub in line with fins.
  • 12/16/2022 – Removed masking from strakes and epoxied 1 strake to reference line with strake forward end even with forward end of body tube.
  • 12/17/2022 – Epoxied remaining strakes to main body tube. Filleted all strake joints with 2-Ton epoxy.
DateLocation#MotorComments

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