Shastas Rocket Site
Mad Cow

Batray

Model #K-118

Description

Unique Bat Fins
Cut Vinyl Decal
Flameproof Chute Protector
Laser Cut Plywood Parts
Kevlar/Nylon Shock Cord
Heavy Duty Body Tube

Additional Information

Length: 26″
Diameter 2.2″
Weight: 8oz
Recovery: 18″ Nylon Chute
Motor Mount: 29mm
Fins: 1/8″ Plywood

Instructions

Photo Gallery

Build History

  • 12/08/2007 – Purchased Mad Cow batray form Merlin Missiles for $32.00 (Retail – $39.95)
  • 01/08/2008 – Took pictures of package and contents. Scanned components.
  • 01/10/2008 – Measured aft and forward ring positions and epoxied rings in place with aft 1/8″ from retainer and forward ring 2″ from end. Filleted ring joints with 5 minute epoxy.
  • 01/11/2008 – Epoxied motor mount inside body tube with 2 ton epoxy.
  • 01/12/2008 – Filleted aft motor mount centering ring joint with 5 minute epoxy. Epoxied fins in place with 30 minute epoxy and filleted fin joints with 5 minute epoxy.
  • 01/24/2008 – Epoxied launch lug 1/2″ from aft end and 1/2″ from forward ends. Filleted launch lug joints with 5 minute epoxy.
  • 05/04/2008 – Sprayed model with Krylon Gray Primer.
  • 05/31/2009 – Filled hole in nose cone with 9.3 cc of #8 lead shot. Epoxied nose cone bulk head with screw eye in base with 5 minute epoxy. Used a piece of clay to plug the hole containing the lead shot.
  • 06/05/2009 – Painted body and nose cone Gloss Black.
  • 06/06/2009 – Painted nose cone black again after sanding wiht 50 grit sandpaper.
  • 06/07/2009 – Masked body tube and spray painted fins Smoke Gray. Removed the masking tape and paper.
  • 06/11/2009 – Applied decal to body tube. Carefully removed decal backing and placed exposed decal to proper position on body tube. Using finger pressed decal down onto body tube. Removed front paper and decal application was complete.

Flights

    1. Location – Anderson Dean Community Park ()
      1. Motor –
    1. Location – Anderson Dean Community Park ()
      1. Motor –
      2. Motor –
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    1. Location – ()
      1. Motor –
      2. Motor –
    1. Location – Anderson Dean Community Park ()
      1. Motor –
    1. Location – ()
      1. Motor –
    1. Location – ()
      1. Motor –
      2. Motor –
DateLocation#MotorComments
11/14/2009ADC ParkBS34G80-7Good Flight. Recovered in tree on edge of woods.
12/12/2009ADC ParkBS35F45-5RRNice Flight. A bit of a walk to recover. Dennis got the recovery dead on.
12/12/2009ADC ParkBS35F50-7Better Flight. Shorter walk.
12/12/2009ADC ParkBS35G80-10Best Flight. Had a longer walk but worth the altitude.
03/06/2010Sim’s FarmBS38F42-8TGreat Flight.
03/06/2010Sim’s FarmBS38F42-8TGreat Flight.
11/13/2010ADC ParkBS45F45-6Recovered two fence rows north of park. Thanks Jon for the recovery.
12/11/2010Sim’s FarmBS46F45-6Recovered by Matt near river tree line.
01/09/2011Sim’s FarmTRA3F50-6TNice Quick Flight.
01/09/2011Sim’s FarmTRA3F100-6EXFSI motor manufactured in Oct. 1985. Quick lift off then blow through. Out came the guts. Rocket landed East of the pad while the guts landed West of the pad.
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