Construction & Techniques

Building for FAI Spacemodeling competition requires learning some design and construction methods that may be new to many U.S. model rocket competitors. The learning process takes an investment of time, effort, and money, but the skills are well within the reach of a good U.S. competition modeler. These construction methods may also be useful for NAR competition events.

The links below provide information on a variety of construction methods, technical data, competition techniques, and vendors. Some of the links below do not specifically address spacemodeling, but the materials, techniques and information are quite applicable to one or more spacemodeling events. Additional information is available on the “NAR_FAI Spacemodeling” Yahoo group site.

Overview

Construction Methods

Drawings

Technical Information and Computer Programs

  • XFOIL – design and analysis of subsonic isolated airfoils, including low Reynolds numbers
  • XFLR5 – analysis tool for airfoils, wings and planes operating at low Reynolds Numbers
  • UIUC Airfoil Data Site – Coordinates and polars for LOTS of airfoils (and related links)
  • Airfoil Tools – Tools to search, compare and plot airfoils
  • MH-Aerotools – aerodynamics of model aircraft

Electronics

Thermal Detection

  • Finding Thermals – Apogee newsletter article on finding thermals (Gassaway and Mizoi)
  • Kestrel – measure and track wind velocity and temperature to detect thermals

Materials and Supplies

  • Aerospace Composite Products (ACP) – fiberglass, epoxy, carbon fiber, vacuum bagging, carbon & fiberglass tubes & sheet
  • Apogee Components – vacuum-formed FAI nose cones, rocket components, and more
  • Composite Structures Technology (CST) – fiberglass, epoxy, carbon fiber, vacuum bagging, carbon & fiberglass tubes
  • Fibre Glast – carbon fiber, kevlar, fiberglass, resin, gel coat & much more. Excellent “learning center”. Yes, it’s spelled correctly.
  • Goodwinds – carbon tubes for S8 models and tower launchers
  • Into the Wind – fiberglass tubes for tower launchers, extendable poles for thermal streamer
  • McMaster-Carr – industrial supplies, tools, materials – everything but the kitchen sink…well, actually, they have sinks too
  • Micro Fasteners – small screws and fasteners
  • Micro-Mark – miniature tools, hard-to-find items and materials
  • North Coast Rocketry – 10 mm tubes (48″ for pistons), 10 mm coupler stock, Adrel altimeters and batteries, building accessories

International Vendors

  • Rocket Craft-Master – Russian vendor. Sells ready-to-fly FAI models for many WSMC events. [Note: using these models in FAI competition may violate the “builder of model” requirement (FAI Code rule 4.4.3). However, these models may be a good source for learning about Russian construction techniques.]

3D Printing and Rapid Prototyping

  • 3dHubs – 3D printing at low cost. Many options for materials and accuracy/resolution.
  • CraftCloud – 3D printing network by All3DP.  Includes cost comparisons.
  • Shapeways – 3D printing at low cost. Many options for materials and accuracy/resolution.
  • Ponoko – Online laser cutting and engraving
  • eMachineShop – Custom CNC machined parts

Related Documents:

40mm Single Body Wrap Pattern PDF May 27, 2014, 11:48 pm 9 KB
40mmtailcone PDF May 27, 2014, 11:48 pm 5 KB
Building_Models_for_FAI_Competion PDF May 27, 2014, 11:48 pm 5 MB
FAI Mandrels PDF May 27, 2014, 11:48 pm 21 KB
Heat_Sink_Streamers PDF May 27, 2014, 11:48 pm 1 MB
Piston Launcher Head for 10.5mm PDF May 27, 2014, 11:48 pm 21 KB
RC-Master Russian FAI Products (2012) PDF May 27, 2014, 11:48 pm 3 MB
WSMC Tower Launcher Ring Other May 27, 2014, 11:48 pm 332 KB