EFO Flying Meeting Reminder Remember that the posted dates are tentative for the summer EFO flying meetings.	Thoughts on Spotters Luis Alvirez shares his thoughts on spotters at the flying field.
The March 2022 EFO Zoom Meeting Highlights: Steve LaButa's redesign of the Mach 1, Keith Shaw's new Klemm L-33 and Jim Pollock's Fledgling.	More On Keith Shaw's Klemm L33 Keith tells us about this model and provides several photos.
Keith's "Other" Klemm Keith shares info on his version of a Klemm L20	Mark Rittinger's Kinner Sportster A little info on this plane.
What's Inside Your Transmitter? Keith shares what he found in old, old transmitter.	A Note from Andrej Marinsek Andrej thanks the Ampeer for publishing his article.
New Motor Mounts from Innov8tive Designs Gary Gullikson tells us about some new motor mounts.	April 2022 Ampeer Was a Good One Scott McKie explains why he thought the April issue was a good one.
Thoughts On Grouping Planes Paulo Scheidegger asks if there is a better way to group planes and discusses a possible solution.	Annual Keith Shaw Birthday Bash Electric Fly-In Event Announcement.
38th Annual Mid-America Electric Flies Event Announcement	Upcoming E-vents
Send Ken email

EFO Flying Meeting Reminder      Please keep in mind that all summer monthly EFO flying meeting dates are tentative and quite fluid depending on the predicted weather.      The meetings are usually on Saturdays, but may change to the following Sunday or even possibly a week or more later.      Everyone is welcome and proof of AMA membership is required to fly. Return to "What's In This Issue" Thoughts on Spotters From Luis Alvirez      What is your opinion on having spotters all the time if available?      When there is at least 1 more plane in the air I feel uncomfortable. I have to keep searching for them and is not a rewarding experience.      If there is the chance to ask someone at the field to do it for you, someone that is doing nothing, or if you bring someone with you, I think that this not only makes flying more relaxed, but safer.      I mean not only at events, but all the time. Luis      It certainly is not a bad idea to have a spotter, especially if it makes you feel comfortable.      Unfortunately, folks that you might bring, who are not RC fliers may not realize that it is there job to watch the other plane, or planes, and NOT yours and then report the other plane's position and heading. That's always a problem.      You should not fly if you are uncomfortable with the situation. Chat and wait and have fun, That's what this hobby is all about. Ken Return to "What's In This Issue" The March 2022 EFO Zoom Meeting      There were eight members present at the EFO March 9 Zoom meeting.      It was great to see Steve LaButa back! He lead off the meeting with his redesign and built of a Mach One pattern plane.      He uses a CNC router to cut out his parts.      His version weighs just over 5.5 lb. The original also use a .60-size glow, but his version, pulls about 45 amps at about 800 watt in.      Right after the meeting, I received the following email from Steve. KM Photo from Steve's Linked Page Hi Ken,      Here are the photos to my Mach 1 redesign and build.      The build is complete, but it has not been flown yet. I am using a 4S power system at about 800 watts in it. It weighs just over 5 and a half pounds, so it should be enough.      If it is not, there is room for a 6S battery, but that would require a new motor as well. Steve Labuta      Keith Shaw shared some information on his 1/9-scale, 22 oz. Klemm L33.      He built this one to this size and weight so that he could fly something that was capable of some aerobatics that could be flown locally in a neighborhood park.      The original was powered by 2-stroke inline engine.      It is covered with Aeronaut Airborne orange and silver and the silver is Oracover.      He also explained how he made the cowel.      During that discussion it was noted that ACE Hardware carries K&S products. It was also noted that Joanne usually has a nice selection of bass and balsa wood.      Jim Pollock shared the work that he's doing to bring a Fledgling back to life.      Keith told us the history of Sitka spruce and why there is almost none of this type of wood left in the world.      There was also some general discussion about the "old NiCad days". Keith noted that his largest NiCad pack contained 36 cells. Return to "What's In This Issue" More On Keith Shaw's Klemm L33 From Keith Shaw via Email      Keith sent out several emails, with photos, regarding his neat little Klemm. They have been combined here. KM      The rare Klemm L33 is ready for covering, so I thought I'd share a few "naked" shots.      As a reminder, this 1933 German design was the prototype for the sport aerobatic market, but it never went into production.      It has the notoriety of possibly being the only airplane to ever fly with an inverted, two-cylinder, inline, two-stroke engine! The wing sits on top of the fuselage and is supported by four short outrigger struts. These are not in the photos as they will be added after everything is covered.      The pilot does not have a direct forward view, but a slight sideways tilt of the head would allow forward sight.      My model is about 1/9th scale at 47" span, and as you see it weighs 10.5oz with the four servos in place.      I am hoping for something like 20-22 oz ready-to-fly with a Scorpion 2208 and three 1100mAh A123 cells.      But first I need to shovel the 8+ inches of snow we got last night.      Hope all of your winter building projects are going well. Hint, hint... Keith      After some last minute problem solving, I thought I'd show some photos of the now completed Klemm L33.      As a reminder, the Klemm L33 was a one-off 1932 prototype for the German sport aerobatic market, but never went into production.      There are only five B&W photos of it and a marginal outline 3-view, so it is only for fun flying. Finish color is unknown, so I went with orange, in hopes that I can see it better on hazy or overcast days.      My model is roughly 1/9th scale at 47" span, weighs 22 oz., and powered by a Scorpion 2208 on three 1100mAh A123 cells. The prop is yet to be determined, but I will start with an APC 8x6 and go from there. I think I will wait a few weeks for a test flight when the temps are warmer and winds calm.      After a couple of house projects are finished, I will start on the 37" span 1972-vintage Dreamer for which I drew the plans a couple of months ago. I always liked this small hotrod bipe and finally will build one. The inspiration came from finding a crumbling set of the GeeBee Dreamer kit plans at a swap shop.      I am changing the horrid airfoil to a NACA 1412, modifying it for bolt-on wings, and lightening up the structure, as the original plan showed a SuperTigre 40 for power! Power will be a Cobra 3520 on 5 A123 cells.      So many projects, so little time... Keith      Obviously, the March Zoom meeting capture colors are way off! KM Return to "What's In This Issue" Keit's "Other" Klemm From Keith Shaw via email      Back in 2018, Keith built another Klemm, a Klemm L20. Here's his flight report. KM      I am including a few photos of the Klemm L20.      It has been test flown and has had about 6 flights resolving some trim/throw/CG issues.      At 55 oz. on the 73", 650 sq.in. wing, it has a 12 oz./sq.ft. wing loading and is VERY light on the controls. You just think about it and it happens.      Originally I flew it on 4 big A123s and a 12x6E prop, but it was wildly overpowered, so dropped it back to three cells. I may even try dropping to a 11x5.5E prop. There is still plenty of power for scale-like flying and aerobatics.      With that huge wing it is reluctant to spin or snap roll, so just mild maneuvers like rolls, inside loops, and stall turns are available. But it looks GREAT on fly-bys and touch-and-goes, particularly with the wire wheels. Keith Return to "What's In This Issue" Mark Rittinger's Kinner Sportster From Mark Rittinger via Email      While getting Keith's info on his Klemm L20, I also found this photo and info from Mark Rittinger that had been "hiding" in my email since June of 2018. It was in a reply to Keith's email and asked about Keith's covering. KM Hi Keith,      Nice looking ship!      What did you go with for covering? Looks like silkspan...      I finished my Flyline Kinner Sportster. It is 12 oz. ready to fly with a 2S 800mAh LiPo.      Coverite Coverlite covering is great stuff! Mark Return to "What's In This Issue" What's Inside Your Transmitter? From Keith Shaw via Email      Many of you know that I love old radio control units and have quite a collection.      Recently I helped a friend go through an estate packed with modeling equipment. I was mostly there to identify various planes by name, and confirm which wing went with what fuselage. The planes were all of the 1960s-80s vintage, so not an ARF in sight. :-) I have acquired a few to be restored and flown in the owner's memory, as I did meet him at several contests long ago.      Among other things I have added to my collection is an unknown transmitter from the 60s, an E&L unit. I have to admit that I had never heard of the brand, so couldn't wait to get it home and analyzed.      After opening, I surmise it is either a Galloping Ghost unit or maybe high rate Kickin' Duck. I won't know until I get it powered up.      Of interest is that it has a transistorized RF section (on the right wall) powered by the large 9 volt battery in the lower left of the case, and a separate pulser in the upper left powered by a 22.5 volt battery. The link between boards is a reed relay in the far upper left corner of the pulser board.      When flying you would hear a faint click-click-click that would vary depending on the controls you were giving at the time. Note that the transmitter has a homemade open gimbal joystick, so there is just a punch out on the front of the case for the stick.      The real laugh came when I opened the transmitter. A lot of debris fell out, and I originally thought it was remnants of dead batteries.      As I pulled the case apart I found it was stuffed full of fiberglass insulation, and the debris was pieces of nut shells! Apparently some little mouse found it a safe cozy lodge, going in through the gimbal opening. LOL...      Enjoy the photos. Keith Return to "What's In This Issue" A Note from Andrej Marinsek From Andrej Marinsek via Email      Andrej was the author of the "Scaling and Comparing Performances of Aircraft Models (2D/3D Wing Loading)" article in the April 2022 Ampeer. KM      I have just noticed that my article, regarding the 2D/3D Wing Loading, was published in the Ampeer.      I thank you for that due to several reasons.      The first one is that many magazines for modelling nowadays publish mostly non-technical contents and are reluctant to publish some more technical texts, especially very long ones (like in may case). In that respect, your publication is a fine mix which covers evenly many aspects of modelling.      The second one is that you assigned almost the entire space (should I say sacrifice?) in the April issue to my article, which was probably not an easy decision on your side.      And the third one is that you really devoted your attention to the subject of my article in several aspects. You ironed out some stylistic and grammatical errors and added several clarifications and explanations to make my text more clear (especially regarding the measuring units, which are less common in your environment) and generally made it more understandable.      I noticed that the introductory paragraph to the Table 3 was omitted. This is probably because my article is really very long. Anyway, I assume that this should not pose a problem to a more interested reader which can, by himself, connect the numbers in this table with the equations in the Table 2.      So thank you again and I look forward to read new issues of your publication. Best regards, Andrej Marinsek      When I went to add the paragraph that you mentioned to the online, HTML, version, it was already there. It appears to only be missing in the PDF version. KM Return to "What's In This Issue" New Motor Mounts from Innov8tive Designs From Gary Gullikson via Email      There is a new type of motor mounts, in various lengths and sizes, to fit most brushless motors that are being sold by Innov8tive Designs, Lucien Miller.      These should make converting IC powered model plane designs to brushless motor power much easier. Sets include spacers for fine tuning lengths to fit cowls. Gary Gullikson, Garden Grove, CA      The 3D Printed Mounts can be found here.      The photo represents a typical mount in the series. The photo is from the Innov8tive Designs Website. KM Return to "What's In This Issue" April 2022 Ampeer Was a Good One From Scott McKie via Email Hi Ken,      This (April 2022) is one of the very best issues your've sent out.      Thank you for it, as those of us that are scratch builders, especially with Depron, will really use the info in it.      Also, when I was growing up, my father owned a Mooney Mite (which he used instead of spending three out the four weeks a month driving between states in the Midwest, and it was also the first single seat plane that I ever flew after he taught me how to fly.      It was a great plane, and one that you don't see too often anymore.      That's a really good looking model of it. Scott McKie -- scotsman7@comcast.net Return to "What's In This Issue" Thoughts On Grouping Planes From Paulo Scheidegger via Email Hello Ken,      I've been a long time silent and grounded, all my planes getting dust and no construction either. But there is one thing I still do each and every month: take a time to read the Ampeer! It makes me feel connected to the hobby even when not active.      Since the February 2022 edition I felt curious about the 12 planes quiz. I do have many different models with very different flight characteristics and I know what the idea of grouping them by those characteristics may help when comparing one plane among the others.      One of the reasons I have been absent is my present occupation in data analytics. And sure enough, there are some analytic models we use precisely to accomplish the task of grouping seemingly diverse and incomparable things into groups whose elements are comparable within the group at the same time that each group is very different from the others.      One very common example is when a retail chain ask us to plan revenue for all their stores across the country. You can imagine there are many sizes of stores, with different local markets, competition exposure and many other factors that affect their revenue. It is not a good idea to rely on a single factor to try grouping them. Instead we use mathematical models that consider all factors simultaneously.      How about trying such approach for grouping hundreds of different planes? The only thing I would need is an Excel sheet with one row per plane and as many columns as factor we want to compare. What do you think about it?      Keep going your amazing work that brings us so much useful information every month! With my best regards, Paulo Scheidegger      I think that's a very interesting idea. Maybe some Ampeer Readers might come up with a list of characteristics. What do you think folks? KM Return to "What's In This Issue" Annual Keith Shaw Birthday Bash Electric Fly-In June 4, Saturday Keith Shaw Birthday Bash Fly-In, Coldwater, MI The Balsa Butchers are hosting the "Keith Shaw Birthday Party Electric Fly-In", for the 20th year, at their field near Coldwater, MI. The event takes place on Saturday, June 4, 2022. It is a one day event again this year. The event consists of Open Electric Flying with a "Special Guest of Honor Theme", Happy Birthday Keith Shaw [June 6]. Enjoy a day with the "Pioneering Master of Electric R/C Flight". 8 a.m. - 4 p.m., Saturday. NO LANDING FEE! Donations for field maintenance and lunch appreciated. For additional information contact; Contest Director: Dave Grife - E-mail or Phone: 517-279-8445 Please e-mail or call with any questions. The field will be open for guests to fly on Sunday as well. Return to "What's In This Issue" 38th Annual Mid-America Electric Flies 2022 AMA Sanctioned Event (Proof of AMA membership required to fly - Sorry MAAC membership is no longer accepted) Saturday, July 9 & Sunday, July 10, 2022 Hosted by the: Ann Arbor Falcons, Electric Flyers Only and The Midwest RC Society The 7 Mile Rd. Flying Site, Salem Twp., MI, is Provided by the: Midwest R/C Society Contest Directors are: Ken Myers phone (248) 669-8124 or email Email Ken - Website for updates: for updates & info Keith Shaw (734) 973-6309 Flying both days is at the Midwest R/C Society Flying Field - 7 Mile Rd., Salem Twp., MI Registration: 9 A.M. Saturday Event Flying from 10 A.M. to 4 P.M. Saturday Open Flying 10 A.M. Until You Leave Sunday (Open Flying Saturday after the Event & All Day Sunday) No Pilot Landing Fee Donations will be gladly accepted No Parking Donation Will Be Requested from Spectators Donations will be gladly accepted Awards on Saturday Only! Best Scale Most Beautiful Best Mini-Electric Best Multi-motor Best Sport Plane Foam Flurry for NCM aircraft CDs' Choice Planes Must Fly To Be Considered for Any Award Plaques for the winner in each category The Field is Open for Open Flying All Day Friday Night Flying Possible, Weather Permitting, Friday & Saturday Nights Field Lunch is provided on Saturday to pilots and friends (hot dogs, chips, water or pop) Field Dinner is provided on Saturday (Burgers, Brats on Saturday evening for Pilots & Their Guests Come and join us for two days of fun and relaxed electric flying. The NCM (Not Conventional Materials) Event Traditionally, model aircraft airframes have been mostly constructed from balsa wood, plywood, spruce, and fiberglass. For the purposes of this meet, NCM airframes are mostly constructed from not conventional materials i.e.; sheet foam, foam board, cardboard, block foam, foam insulation material, etc. Foam Flurry for NCM aircraft: This is a true event. It is based upon the all up/last down event of early electric meets. Any NCM aircraft may be used (no ARF types). Power systems are limited to a maximum of 3S (no paralleling) LiPo batteries or 4S maximum, no paralleling, for A123 packs. All planes qualifying for this event will launch at the same time, and the last one to land will be declared the winner. VERY IMPORTANT REMINDER FOR 2022 - THE FLYING FIELD ENTRANCE TO THE MIDWEST FLYING FIELD CHANGED THREE YEARS AGO! The old entrance to the Midwest RC Society flying field is permanently closed!!! DO NOT ATTEMPT TO USE IT!!! This what the flying field entrance looks like. Please Drive SAFELY The field entrance is on the north side of Seven Mile Road about 1.5 Miles west of Currie Rd. entrance is on the north side of Seven Mile Road about 1.6 Miles west of Currie Rd. The address is 7621 Seven Mile Road, Northville, MI 48167. The entrance is through a private residence drive and out past the barn. Directions from Google Maps to the flying field To locate the Midwest R/C Society 7 Mile Rd. flying field, site of the Mid-America Electric Flies, look near top left corner of the map, where the star marks the spot, near Seven Mile Road and Currie Rd. Because of their convenient location and the easy drive to the flying field, the Comfort Suites and Holiday Inn Express in Wixom, MI have been added to the hotels' listing. They are only 10 miles northeast of the field and located near I-96 and Wixom Road. See the map-hotel .pdf for more details. Area Hotel Info Return to "What's In This Issue" Willie McMath Attention: To the family of Mr. Willie McMath. He was a warm and friendly guy and he will be much missed at the flying field. More on Willie Thanks you so much for the link Mr. Ken Sulkowski. Return to "What's In This Issue" To Reach Ken Myers, you can land mail to the address at the top of the page. My E-mail address is: KMyersEFO@theampeer.org EFO WEB Site