EFO Flying Meeting Reminder Remember that the posted dates and places are tentative for the winter EFO meetings.	Winter Indoor Flying at the Legacy Center in Brighton, MI Legacy indoor flying info.
The January 2024 EFO Indoor Flying Meeting Info and photos from the Dec. flying meeting at the Legacy Center.	Keith Shaw's Latest Project, a 1931 Darmstadt D-22 Keith fills us in on his latest project.
Note About 1/4 scale Marquart Charger Sold at the Northville, MI Midwest Swap Shop Joe Hass shares an important message for someone who purchased this plane at the Midwest RC Society Swap Shop at the beginning of November, 2023.	Wing Cube Loading, Again Ken brings up this useful topic once again.
Upcoming RCCD Swap Meet Bayard Temple informs us about this upcoming swap meet.	Skymasters' Indoor Flying Season Has Started Pete Foss announces the Skymasters' indoor flying season 2023/2024.
An Important Note Regarding Skymasters Indoor Flying Pete Foss with an important update to the Skymasters' indoor flying season 2023/2024.	Skymasters' Indoor Flying Season Flyer The flyer for the Skymasters' Indoor 2023/2024 flying season.
Upcoming E-vents	Send Ken email

EFO Meeting Reminder      Please keep in mind that winter and early spring monthly EFO meeting dates are to be determined (TBD), as well as the place.      The meetings could be on Zoom or possibly at the Legacy Center in Brighton, MI. It all depends on the weather.      Members will be notified, via email, as to the time and place.      Everyone is welcome, with indoor type planes and proof of AMA membership, and a $10 fee, to fly at the Legacy Center.      Spectators are free.      The next EFO monthly meeting is scheduled for Wed., February 14 at 12:30 p.m. at the Legacy Center in Brighton, MI. (See note in this issue.)      If the weather is not safe for driving on that date, the meeting will be postponed to a future date and members notified, via email, regarding any change in date, time or place. Return to "What's In This Issue" Winter Indoor Flying at the Legacy Center in Brighton, MI      Indoor flying is now taking place through 2024 at the Legacy Center Sports Complex, 9299 Goble Dr., Brighton, MI, 48116 phone: 810-231-9288 Wednesdays from 12:30 PM until 2:30 PM. The cost is $10 per drop-in session. Spectators Are Free Return to "What's In This Issue" The January 2024 EFO Indoor Flying Meeting      The January EFO Indoor Flying Meeting was held on Wednesday, January 10, 2024 at the Legacy Center in Brighton, MI.      The meeting was well attended by EFO members. There were many members flying in the mix of other attendees for the indoor flying session that day.      The following photos were taken that day.      Bill Brown, Jr. heading to the flight line for his first flight of the day.      Dave Stacer readies for his first flight of the day as Roger Wilfong seeks power for his charger.      Roger Wilfong and Keith Shaw set up. Mark Couling can be seen flying. He's the one furthest back in the photo.      Keith and Roger use some of the netting of a soccer goal to hold their planes up off the floor to avoid having them stepped on.      Dave, Roger and Keith are flying.      Keith prepares his beautiful Deperdussin for flight. His specially built carrying box for this beauty can also be seen in the photo.      A video clip pf the Deperdussin can be found here.      Lynn Morgan can be seen flying his F3P plane and practicing his "pattern" maneuvers.      Lynn shares the bottom view of this light, great flying indoor pattern F3P plane.      This YouTube video, "F3P Indoor flying championships | 3D flying" gives an idea as to what F3P is all about.      Once again, a fun time was had by all. Return to "What's In This Issue" Keith Shaw's Latest Project A 1931 Darmstadt D-22 From Keith Shaw via email Hi Ken,      As promised, here is some info on my latest project. I think it has become my lifelong mission to find and build ultra-rare subjects that have never been built in R/C.      This year's addition is the 1931 Darmstadt D-22, a two-seater biplane with high aspect ratio cantilever wings mounted with 100% stagger and no inter-plane struts. The fuselage is a monocoque elliptical cross section beauty with an inverted four cylinder nose and spinner.      The Darmstadt Akaflieg was a German flying club that specialized in building high performance sailplanes. As a way to finance their planes, they also designed and built a series of sport planes for competition and sale. The D-22 was one such design, and three were built. One went to Britain (fate unknown), another was flipped over and destroyed by a night time wind gust, and the last was lost/destroyed early in the war.      Apparently it did well in the sportsman air competitions. Color was red fuselage, red wing leading edges and stab, with the rest of the plane in clear doped linen. The old photos make the red appear black. There are only about 8 photos of this plane in existence, so I had to do a lot of guessing on the shapes and structures.      My model will be about 1/6th scale (48" span), and will be powered with a BadAss 2814-870kv motor on 4 A123 cells and a 12x6 prop.      I had the tail framed and the wings mostly built when I contracted a serious case of Covid just before Christmas. With the help of Paxlovid I weathered the storm, but all holiday activities got cancelled, along with any thoughts of working on this plane. It was a rough few weeks, but I am finally feeling better and ready to return to the shop. Keith Return to "What's In This Issue" Note About 1/4 scale Marquart Charger Sold at the Northville, MI Midwest Swap Shop From Joe Hass via email      Someone bought a 1/4 scale Marquart Charger from Jim Lapham at the Midwest Swap Shop.      Jim has a number of parts for the airplane (N Struts, plans, pictures, etc.). If you purchased it or know who did Jim can be reached at 248-342-5405. Thanks. Joe Hass Return to "What's In This Issue" Wing Cube Loading, Again By Ken Myers      Wing Cube Loading (WCL), which is sometimes noted as Cubic Wing Loading (CWL), is a means to identify how a plane, with a certain weight and wing area, might fly compared to other planes with different weights and wing areas.      I recently came across two recent YouTube videos on this topic, although I have been using it for many decades. Wing Cub Loading The TRUTH About Wing Cube Loading RC Airplane Cube Wing Loading for Dummies!      The formula used for a WCL value has no direct relationship to the actual wing volume. It is just another useful means to determine the flyability of an unknown plane.      The formula: the value for the weight in oz. divided by the wing area in square feet raised to the 1.5 power      THE UNIT VALUES ARE NOT NECESSARY AS THE RESULT HAS NO UNIT VALUE, BUT IT STILL PRODUCES A USEFUL COMPARATIVE NUMBER! Example: 60 oz. and 576 sq.in. 576 / 144 = 4 4^1.5 = 8 60 / 8 = 7.5      Using a WCL chart, the 7.5 value indicates that the plane would have a flyability similar to sportĘtypes, many biplanes, light type scale, some 3D planes, and pattern. The greatest number of RC planes are found in this category. Avg. WCL is 8.51 for electric, and 8.60 internal combustion planes.      To understand more about WCL/CWL, I have several articles regarding it, and its usefulness on the Ampeer Website. Wing Cube Loading (WCL) Calculator 3D Wing Loadings - A Better Way to Scale Models by Larry Renger - Dec. 1997 Aircraft Performance Parameters Revisited by Roger Jaffe - June 1994 Model Design & Technical Stuff by Francis Reynolds - September 1989 Wing Cube Loading By Ken Myers - Jan. 2014 Wing Cube Loading (updated) By Ken Myers - Feb. 2018 A chart with WCL values related to typical types of planes with these values can be found in this article.      Note that this "idea" is not new. It is also not complicated and it does have value, and CAN be more comparative and useful than typical wing area loading.      I found it interesting that some folks are just catching on to it. Return to "What's In This Issue" Upcoming RCCD Swap Meet From Bayard Temple via email      The annual RCCD Swap Meet is coming up on January 28 at the K of C hall in Warren.      As in years past, in addition to the swap meet, there will be waffles available! Best regards Bayard Temple RCCD Secretary Return to "What's In This Issue" Skymasters' Indoor Flying Season Has Started From Pete Foss via email Hey Indoor Pilots,      I'm very happy to announce that we will be hosting indoor flying at UWM Sports Complex, in Pontiac, again this year! Tuesdays 9-noon just like last year. Please see attached for the complete schedule. The first flying date was Tuesday October 17th, so get your indoor planes in order! Thanks, Pete Pete Foss President Skymasters RC of Michigan The flyer that Pete mentioned is at the end of this issue. KM Return to "What's In This Issue" An Important Note Regarding Skymasters Indoor Flying From Pete Foss via email Hi Guys      Please find attached the rules for flying indoors this year. I only made one change to them, I changed the maximum battery size from a 3S 2600 to a 3S 1300. We have been seeing some aircraft that were really too big to fly indoors over the last couple years so I decided to ratchet the max battery down      See you Tuesday at 9AM! Pete Foss President Skymasters RC of Michigan      While the PDF with the Rules ia available on the Skymasters' Website, I've also posted them here with this link 2023-2024_Indoor_Rules.pdf. Return to "What's In This Issue" 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