The chapter is also on the waiting list for one slot in the Advanced Air Academy (ages 16-18). We won't know until later if this will be approved but prospective ap-plicants should still apply. The age ranges listed are the age the applicant will be on

the first day of camp. See more information about how to apply for these scholarships: http://www.237.eaachapter.org/scholarshipcentral.htm Please note the earlier application deadline this year was Feb 10th but we are extending the application deadline to March 1st! There are many other aviation scholarships listed on our website. These include the Amelia Earhart Memo-rial Scholarship sponsored by the 99's…and many oth-ers! Good Luck! We make a living by what we get, but we make a life by what we give." (Winston Churchill)

Kirk E. Fjetland, (USN Ret.)

President - EAA Chapter 237 (ANE)

EAA’s 1st AirVenture Chapter Grand Champion

Please consider submitting an article for next month. To do so please contact, your newsletter editor, Josh Welter at editor@eaa237.org

The PresidenT’s

Flight deck

Students:

2019 EAA Air Academy Scholarships

LAST CALL Before Dead-line...Apply Now!!

This year Chapter 237 is sponsoring at least four EAA Air Academy scholarships: Two at Young Eagle Air Academy (ages 12-13) and two at Basic Air Academy (ages 14-15).

SOCIAL HOUR—6PM CHAPTER MEETING - 7 PM

Monday, Feb 25th

2019 Located at:

8891 Airport Rd NE Blaine, MN 55449

We hope to see you there!

Feb 2019 Edition

Page 1

Calendar Feb 25— Chapter Meeting 6pm Social Hour, 7 PM meet-ing, 8PM Presentation

Mar 2— Young Eagles Flights 9AM-1PM Mar 13— Board Meeting 7PM Mar 16— Welding Workshop 9AM-3PM (Offsite)

Mar 16— VMC 9AM-10AM Mar 16— IMC 10:30AM-11:30AM Mar 20-23— Oshkosh Work Party Mar 25— Chapter Meeting 6pm Social Hour, 7 PM meeting, 8PM Presentation

Apr 2— AOPA Seminar 7:00PM-9:00PM (Delta Hotels by Marriot)

Special Chapter 237 Meeting Presentations Feb-

ruary 25th!

This February 25th Chapter meeting will be outstanding!!!

Chapter member, Paul Campobasso (CFIG), with the Minnesota Association of Glider

Clubs has confirmed that he will be presenting the MASC's exciting new series of Glider

Pilot Ground Schools! Additionally, Paul will be doing an overview of the soaring clubs

in our area and be open to Q&A's.

As an added bonus, Neil Otey (KANE ATC Manager)

and Philip Tiedeman (KANE Airport Mgr) will be on hand to explain how

the NCAA Final Four being held April 6th-8th weekend will affect

Twin Cities air traffic and how general aviation will be able to work around

it. Neil & Philip will also be available for any questions, comments, criticisms,

and suggestions of our airport and air traffic control system. As usual, the

Chapter 237 Culinary Coordinators will offering a delicious pre-meeting meal

at 18:00 for your dining pleasure!

MARK YOUR CALENDARS! You won't want to miss this meeting!! Please stay tuned for addition-

al meeting details as they become available.

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On Sale Now EAA’s 2019 World of Flight calendar is now available from Chapter 237 for a contri-bution of Only $10.00! (Suggested retail: $14.99) The calendars are currently availa-ble at the chapter hangar. For our out-state members, we will ship the calendar/s for an additional charge of $4.50 to cover costs. Use the “Donate” tab on the chapter website (https://www.237.eaachapter.org/), be sure to include shipping cost and address, and send a confirming email to: president@eaa237.org.

It makes the perfect holiday gift for a hangar, man cave, reading room, and everyone interested in aviation!

Shipp’s Ship Status Bob Heavirland sent these photos of Don Shipp’s RV10 back in December. Much more progress has been made over the last 2 months but as you can see the project is coming along quickly. Bob says the smaller items like the en-gine heater and the “preoiler” are installed. Inside the cockpit was painted. The instrument panel was test fit. Outer fiberglass parts sprayed with primer and filler. The wings are painted and get-ting final wiring.

Page 3

Composite Clubhouse By Dick Pugh

Aircraft Windscreen Materials

Lets take a break from Thermo-Setting plastic and look at Thermo-formed plastic. As the name implies, Thermo-formed plastics can be heated to just below the melting temperature and formed or shaped.. When needed, the ma-terial can be reheated and reformed. This process can be repeated many times. The former should be aware, how-ever, that heating the plastic releases a flammable gas and each heating cycle reduces the ultimate strength of the part. A couple of years ago I volunteered to fabricate a tail canopy for the B-25. How hard could it be? Well, pretty hard, as it turned out. For months, I explored lots of failure modes before getting a serviceable part. As a result, a lot of time was spent studying the material to understand why it didn't work. Some of this information could be useful for other home builders. This is not going to be a “How to form plastic”, article. For those interested I rec-ommend a forming manual available in PDF form on the internet from Curbell Plastics. The first step is selecting the proper material. There are three common types of optically clear plastic: Polycar-bonate (Lexan), Acrylic (Plexiglass), and Styrene (an ABS plastic). These plastics can come tinted by the manu-facturer. Since acrylic and polycarbonate out perform styrene, it is not used for windscreens but is included for comparison. Styrene is most commonly used for injection molding of medical equipment. The following chart tells a great deal about the materials.

The first characteristic of note is that Polycarbonate and Acrylic have almost equal ultimate strength in spite of the claim of Polycarbonate to be “bullet proof”. However, the way the plastic responds to stress could not be more dif-ferent. Polycarbonate will deform 110% before fracturing. Acrylic de-forms only 2%. These figures tell a great deal about the material. Polycar-bonate is a softer, more flexible plastic. It will be more prone to scratching than Acrylic, but it will survive impacts bet-ter. Polycarbonate can be cold formed like an aluminum sheet as shown in the picture, or it can be simply bent into place as in the windscreen on the Air-cam. Acrylic would need to be heated to make these curves. I Composite Clubhouse continued (Page 6)

Page 4

Polycarbonate Acrylic Styrene

Ultimate Tensile Strength 9 .5 kpsi 9 Kpsi 7 kpsi

Elongation before fracture 110% 2% 50%

Resistant to sunlight No Yes No

Coefficient of expansion .03 % /Deg F .06 % / Deg F .06%/Deg F

Water absorption 3% 2% .02 %

Forming Temperature 350 F 320-350 F 280 F

Breaking news!!!

I was recently informed that Chapter 237 will host EAA’s B-25 Berlin Express Inaugural Tour Stop at the Anoka

County-Blaine Airport (KANE) on July 4th-7th, 2019! Tagging along will be EAA’s B-17 Aluminum Overcast. Details haven’t been worked out yet, but I will keep you informed as they become available. This tour stop will be a HUGE EVENT and we will make it one to be remembered! It may be 7 months away, but please schedule your calendars accordingly. Out-of-Town members/volunteers – If you’d like to participate with this tour stop, or would just like to attend, I will setup up a block of rooms at the hotel & rate where the EAA crew stays. Stay tuned for details.

THATCHER CX4 LIGHT SPORT

For Sale: $14,500 OBO

Great Plains 2180 (74hp) VW engine, radio, grove brakes, strobe lights, tri-gear. Total of 66 hrs. on Hobbs. Located in Grafton, ND. Flies great with or w/o canopy; cruises at 100-110 and uses 3.5 gph. Call Dave at 218 686 0157. Email taco@midco.net

Page 5

Composite Clubhouse (cont.) The third line shows resistance to sunlight. Acrylic is a clear winner here. Some of the acryl-ic windows on the B-25 are perfectly serviceable even after 60 years. Headlights on newer automo-biles are made of Polycarbonate plastic as are eye-glass lenses. The ability to withstand impact is very important in these applications, but anyone who has a 10 year old car knows that the plastic hazes over time. Manufacturers of Polycarbonate have responded to the sunlight degradation issue. The plastic can be coated with a UV inhibitor and also a scratch resistant coating. However, these coatings have their own drawback: Coated plas-tic should not be formed or polished The figures for thermal expansion. water absorption, and forming temperature are mostly of interest to those heat forming the material. Note that Acrylic moves twice as much as Polycar-

bonate. The expansion of the plastic may not seem like much, but as the material cools from forming temperature, it needs to be removed from the mold or it will crack (Failure #35). Used for airplane windows, allowance needs to be made for expansion and contraction even over 100 F tempera-ture swings. The other item of interest in this chart is the water absorption figures. Both types of plastics absorb water over time. This water is invisible and does not affect performance, however, when heated, the water molecules can gasify and form bubbles within the sheet as the temperature reaches the boiling point (failure #5). Polycarbonate absorbs 50% more water than acrylic. It is much more prone to bubbling.

Composite Clubhouse (Page 8)

Page 6

Page 7

CP-150 Onyx Project – FREE!!! It’s Gotta Go – Come & Get It

The Piel CP-150 Onyx is a single-seat, low-cost and low-power ultralight aircraft. The aircraft was designed by French aeronautical engineer Claude Piel. It is an all-wood single seat microlight based on Mignet principles with fixed tricycle undercarriage and the engine is in a pusher configuration. The "canard", or forward wing of constant section, is hinged at 2 points to allow the wing to change its incidence angle via the pilot stick and torque tube. The CP-150 is built in 1 piece with a single spar which forms a torsion box with the plywood covered leading edge. The design of this type of aircraft causes the "canard" wing to stall before the main wing. Maximum permissible engine power is 18 HP. This mostly completed project was donated to EAA Chapter 237. The completed work is excellent! It does need finish-ing work and final assembly, has the full set of plans and parts, a 3-blade POWERFIN composite prop, but not an engine or instruments. Engine: 18 hp Propeller: 35" dia. x 14" pitch Span: 24.0 ft Length: 11.6 ft Total Area: 137.7 sq ft Empty Weight: 265 lbs Max Takeoff Weight: 475 lbs Fuel: 5 USG Max Speed: 70 mph Minimum Speed: 30 mph Cruise Speed: 60 mph Vne: 85 mph Stall Speed: 25 mph Takeoff Distance: 150 ft Landing Distance: 100 ft Rate Of Climb: 450 fpm Here is the complete build history for this airplane to date: http://cp150onyx.blogspot.com/ EAA 237 is open to ANY donation offers, which are tax deductible!!! Please contact me with offers or for additional information: Kirk E. Fjetland President, EAA Chapter 237 Anoka County-Blaine Airport (KANE) Email: President@eaa237.org

Page 8

Composite Clubhouse (cont. form 6) Bubble formation within the sheet is generally not a issue for new plastics. The protective sheets on the surfaces also seal out water vapor. If this protective sheet has been removed for some time, the sheet may need to be baked for an extended period at 150 F before it can safely be raised to forming temperature. Always test heat a scrap piece before heating to forming temperature. Before we leave this material topic, one more complication needs to be addressed. Acrylic sheet can be manu-factured in two ways: Extruded, and Cast. Extrusion is a continuous process, whereas, casting forms discrete sheets. The two processes result in slightly different physical properties. Cast sheets have slightly better optical quality and are slightly stronger. They respond differently to Laser cutting and engraving. Cast sheets can vary in thickness up to 8%, twice that of extruded. Cast sheets expand and contract evenly in all directions. Extruded sheet moves more across the sheet than along its length. Finally, the maximum forming temperature is 25 F less for extruded acrylic. Acrylic plastic has set the standard for aircraft windows. Its clarity, strength, and resistance to sunlight degra-dation are tough to beat. Next time: Care and Feeding.

Employment Opportunity

EAA lets your talents soar by creating wonderful meals for large groups, small groups, and of course for AirVenture every summer. Our events team is currently seeking two full-time cooks for our events staff. If you like the challenge of someplace beyond a restaurant and more than an institutional menu, apply today! – https://bit.ly/2mI9su7

Page 9

Coming April 2nd, 2019

Flying in the backcountry is an exciting and rewarding challenge with little room for error. It's an ex-acting environment that demands sound decision making, stellar stick and rudder skills, a thorough understanding of the weather, and an intimate knowledge of the airplane. Whether you're a seasoned backcountry flyer or flatlander, you'll enjoy this new seminar, which delves into conditions, challenges, and accidents unique to backcountry flying. Together with your seminar leader you'll examine lessons learned to fly safely in any operating environment. The Air Date: April 2nd, 2019 Time: 19:00-21:00 Place: Delta Hotels by Marriott 1330 Industrial Blvd NE Minneapolis, MN 55413 651.331.1900

The Delta Hotel Minneapolis Northeast is the official EAA Chapter 237 “Aviation Celebration Hotel Destination” for all Twin City aviation events. Owned and operated by an EAA 237 member and Super Cub (w/floats) driver, your stay or conference use is guaranteed to be exceptional!

Make it a great aviation evening! Come early and enjoy dinner at the Delta’s Twin Cities 400 Tavern, contemporary tavern fare that celebrates the flavors of Minnesota. Or, belly up to the bar for local beers, spirits, and the Cities best Happy Hour! Check it out: https://www.tc400tavern.com/

Page 10

Youth Service Opportunity

Airlines will need 617,000 pilots, 679,000 technicians, and 814,000 flight

attendants in the next 20 years. How can we help fill this need and

serve our youth at the same time? That question was asked of our

chapter board of directors and they answered by approving the for-

mation of an Aviation Explorer Post.

Aviation Exploring is a Coed Career Education Program for young adults

between the ages of 14-21 to explorer careers in Aviation. It is part of

the Learning for Life program, a subdivision the Boy Scouts of America.

The first step of the process is to form a committee of 5-8 members will-

ing to help identify and recruit the adult leaders of the post and identify

resources that can assist the post once it is started. This is not a long

term commitment. Ideally, this is a 90 day process at most.

If you have a passion for serving youth, work with youth, or are just wanting to serve, we need you. If you are willing to serve on this formation committee, want to be an advisor to the post or just have some questions, please email or call Bob Henkes at 651-206-3818 or Fishinib@gmail.com. We would like to have our first meeting in March.

Page 11

Flying Star Products Bob Heavirland I sell premium split point drills and taps of all or your shop and aircraft building needs. Made in USA the best you can buy.

rheavirland@yahoo.com 651-324-0792

Page 14

NEWS from EAA HQ

Host a Flying Start Event on International Learn to Fly Day

Mark your calendars! International Learn to Fly Day is Saturday, May 18, and this year EAA is encour-aging all chapters to get involved by hosting a Flying Start event on this day. The Flying Start program provides chapters with a perfect opportunity to reach out to the local community and bring those inter-ested in aviation to the airport to show them firsthand how accessible and enjoyable general aviation can be. Hosting a Flying Start event is easy. All your chapter needs is a place to meet, a CFI from a local flight school or FBO, volunteer pilots to give Eagle Flights and serve as mentors, and presenta-tion materials from EAA. Chapters that host a Flying Start event on Learn to Fly Day – or any week in May 2019 – will receive two free weekly passes for EAA AirVenture Oshkosh 2019 to be used for fundraising or to give to a deserving chapter volunteer. If your chapter is interested in host-ing a Flying Start event, please visit www.EAA.org/FlyingStart to

Build an Airplane and the Girl Scouts Will Help EAA Chapter 1536, the only active EAA chapter on the Delmarva Peninsula in Delaware, has an active Young Eagles program. Last year it flew more than 60 youths and looks to increase the number this year. Specifically, the chapter anticipates a greater number of young girls — mostly Girl Scouts from the Chesapeake Bay Girl Scout Council. More than 50 Girl Scouts learned about aviation in general, women in aviation, and the history of aviation in Delaware through participation in an airplane building project.

The directors of the Friends of Bellanca Airfield, the trustees of the Delaware Aviation Hall of Fame, EAA Chap-ters 1536 and 240, the Delaware chapter of The Ninety-Nines, and the Chesapeake Bay Girl Scout Council joined forces to support Bruce Lambrecht, EAA 1022922 — president of the Delaware Aviation Hall of Fame, a direc-tor of the Friends of Bellanca Airfield, and treasurer of EAA Chapter 1536 — as he built a full-size, nonflying replica of Giuseppe Bellanca’s 1911 parasol monoplane. Bruce built the airplane in his garage without any speci-fications or diagrams other than three photographs from 1911 as the original materials had been lost. To construct the engine, a small museum in England sent him pictures of the correct engine, an Anzani three-cylinder radial. Bruce constructed the replica engine mainly from plumbing materials. Sales people in Lowe’s and Home Depot would ask what he was building but would quickly disappear when he said an airplane.

From the very beginning, he envisioned ways to engage young women in the project. Given the shortage of pi-lots, especially women, he contacted The Ninety-Nines and the STEM (science, technology, engineering, and math) coordinator of the Chesapeake Bay Girl Scout Council to enlist their help in not only getting the Scouts to learn about aviation, but to also have hands-on experience in building an airplane. After several sessions, Bruce provided the Scouts with wing ribs and asked the girls to sand them. He explained the purpose and function of the ribs and asked each girl to sign her rib after she finished sanding it. They were an enthusiastic group!

In April 2018, a celebration was held at the Bellanca Airfield Museum in New Castle, Delaware, for the official unveiling of the full-size, static display replica of the first airplane that Giuseppe Bellanca built in the United States. The replica now resides in the Bellanca Airfield Museum as a permanent display. Sen. Tom Carper and Lt. Gov. Bethany Hall-Long welcomed the crowd of approximately 200 people including members of the Bellan-ca family who traveled from Italy for the event. Resolutions were presented by the senator, lieutenant governor, and the mayor of the City of New Castle. Troop members of the Chesapeake Bay Girl Scout Council who assist-ed in creating the wing ribs enjoyed posing for pictures in front of the aircraft. A large poster next to the airplane listed the names of the 51 Scouts who participated in the project.

To further instill an interest in aviation, members of EAA Chapters 1536 and 240 plan to welcome those Scouts who express interest in a free flight to participate in the EAA Young Eagles program. Chapter 1536 looks for-ward to flying many youths including aviation-informed Girl Scouts.

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Page 15

Chapter Leadership Academy

Did you think the Chapter Leadership Academy was just for officer’s and directors? Its not.

Recently chapter members Al Patchin, Mike Miller and Bob Henkes attended the 2 day academy at EAA. They ar-

rived on a Friday afternoon at the Air Academy Lodge for a social hour, dinner and then a tour of the museum. This

was followed by comradery as they got to know members of chapters across the country and Canada.

Saturday was a day filled with seminars from managing your chap-

ter, HQ resources, financial management and chapter gatherings.

The evening was a tour of a local aircraft manufacturer and Sun-

day morning wrapped things up with a few more seminars and

success stories.

It gave all three of us the opportunity to view things from a differ-

ent perspective and we left with a better appreciation for the

work that our officers, directors, and chairman do in running this

small business called Chapter 237. It also gave us ideas on how to

improve and serve, as a natural outcome of attendance.

Despite the book learning sessions, the best part was to share time with the chapter leadership team at EAA and members from other chapters. The stories, ideas and networking are the best outcome of attending. We’d encourage you to attend in the fu-ture.

EAA CHAPTER 237 8891 AIRPORT ROAD, BOX C-12

BLAINE, MN 55449

QUOTE OF THE MONTH

Check out our YouTube Channel

EAA237Video

25 February 1970 (USA) — TWA becomes the first airline to fly a “Jumbo Jet” within the United States, when it inaugurates a Boeing 747 service between Los Angeles and New York

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EAA Chapter 237