This is my supplemental builders blog for a Cozy Mark IV which is a 4-seat, single engine, homebuilt light aircraft designed by Nat Puffer, with parts and plans supplied by Aircraft Spruce & Specialty Co. The aircraft is built from plans using basic raw materials. It is not a kit aircraft, though many small parts are available prefabricated. The Cozy is similar in design and construction to the 2-seat Rutan Long-EZ, from which it is derived, with approval from Burt Rutan.
Pages
Chapters (Blogger Labels)
- Chapter 01 Description and Introduction
- Chapter 02 Bill of Materials
- Chapter 03 Education
- Chapter 04 Fuselage Bulkheads
- Chapter 05 Fuselage Sides
- Chapter 06 Fuselage Assembly
- Chapter 07 Fuselage Exterior
- Chapter 08 Head Rest and Seat Belts
- Chapter 09 Main Gear & Landing Brake
- Chapter 10 Canard
- Chapter 11 Elevators
- Chapter 12 Canard Installation
- Chapter 13 Nose - Nose Gear & Brakes
- Chapter 14 Center Section Spar
- Chapter 15 Firewall
- Chapter 16 Control System
- Chapter 17 Pitch and Roll Trim
- Chapter 18 - Canopy
- Chapter 19 - Wings/Ailerons/Attach
- Chapter 20 - Winglets & Rudders
- Chapter 21 - Strakes
- Chapter 22 Electrical System
- Chapter 23 - Engine Installation
- Chapter 24 Armrests Seats Fairings
- Chapter 25 - Finishing
- Chapter 26 Upholstery
- Cozy Builders
- EAA
- FAA
- Flight Testing
- Landing Brake and Center Console
- M Drawings
- Maintenance
- mods
- Skunk Works
- Trip reports
- Wheel Pants
Monday, July 29, 2019
Friday, July 19, 2019
Chapter 18 latch rod spacer, safety catch and IP panel cover
The latch rod 3/8" spacer is not per plans.
The "dog leg" canopy latch handle is not per plans. I did this to provide more clearance from the stick. |
A square 3/8" spacer moves the latch rod outboard to alleviate interference with the safety catch. The Chapter 18 FAQ advises to bend the rod to provide clearance. |
The regular nuts will be replaced with locking nuts. |
I made a template, cut the foam and took it outside to shape it. |
I made some stainless steel pins to help hold the glass down on the front. Some manilla file folder paper was cut to provide a flat surface for the matting lip. Box tape was used for release. |
After trimming. |
Friday, July 12, 2019
Vance's periodic visit/Canopy inspection
Vance stopped by to check on my work. He approved of my new press and canopy hardware I'd recently made. He commented that he put lightening holes in his handles, so I did the same later that afternoon.
I showed him TB1 had been an inch to far aft, cut it out and reglassed it to the plans location.
Also showed him how the previous builder had made the indention for the cut between the IP cover and canopy a little to far aft above the longeron, so I had to move the canopy catch further aft than plans. I'm still looking at ways to externally latch and lock the canopy that aren't to complex. Might put a handle inside the nose and have a locking nose door for access to the handle.
Neither of us are going to OSH this year. Vance left a sight gauge to be delivered to OSH by my friend Don. We went to lunch at one of our local favorites and had the chicken fried steak special.
Vance mentioned his 30 year old EI system had to be repaired by the new owner. One coil failed and the other was intermittent. Probably had 2400 hours or more on it.
After Vance left, I realized I hadn't asked him all of the questions I had so will try to remember to put them in one of the journals I make notes in.
I showed him TB1 had been an inch to far aft, cut it out and reglassed it to the plans location.
Also showed him how the previous builder had made the indention for the cut between the IP cover and canopy a little to far aft above the longeron, so I had to move the canopy catch further aft than plans. I'm still looking at ways to externally latch and lock the canopy that aren't to complex. Might put a handle inside the nose and have a locking nose door for access to the handle.
Neither of us are going to OSH this year. Vance left a sight gauge to be delivered to OSH by my friend Don. We went to lunch at one of our local favorites and had the chicken fried steak special.
Vance mentioned his 30 year old EI system had to be repaired by the new owner. One coil failed and the other was intermittent. Probably had 2400 hours or more on it.
After Vance left, I realized I hadn't asked him all of the questions I had so will try to remember to put them in one of the journals I make notes in.
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Relevant links for supplies and other info
- Cozy IV Specs
- Cozy Builders - Google Groups
- Unofficial Cozy Builders Site - updates to plans and much more information (maintained by Marc Zeitlan)
- Cozy Builders Mailing List, POH and other info
- Cozy Builders - Map
- Official Cozy Aircraft Site (outdated site)
- Canard Zone
- Central States Association - Facebook
- COBA Canard Owner and Builder Association
- Builder Sites (maintained by Erland Moen)
- Experimental Aircraft Association
- Rutan Aircraft Flying Museam
- Dennis Butler's Grand Champion
- aerocomposites.aero - Gear legs and fiberglass parts
- Aircraft Spruce Cozy IV Parts
- http://www.wicksaircraft.com/index.html
- 3:23 Composites
- SDS EI EFI
- Cozy Girrrls
- Skycraft Surplus
- www.enginegearonline.com/
- Infinity Aerospace
- NIck's web site
- https://www.stuarthose.com/
- http://www.tostenmfg.com/
- www.eurekacnc.com
- Featherlite (http://aerocad.com) parts
- http://aeroelectric.com/
- www.long-ez.com/
- Earl's Performance Fuel Systems
- FAA Amateur Built Operating Limitations
- FreeFlight Composites
- ADS-B blocking
- FAA - A&P / Experimental Builder Experience
- EZ.ORG moved to ez.canardaircraft.com
- Fiberglass Warehouse
- High Temp Epoxy
- Marc's Nose Gear parts