New INDOOR Postal Contest

I got an email from Dave Aronstein recently. I thought I would post it on our website. Take a look at the videos and plans in the NFFS symposium link in the article below. I have watched Dave fly these gliders in the Osawatomie Auditorium (some years ago now). They are amazing. I just looked on You-Tube under “walk along glider” and there are tons of videos of people flying these in homes and offices as well as auditoriums. I snagged an image of an example of a plan for this post. If any of you want to send me a pix of you flying or building one of these I will post it on our site.

From Dave: Hey in case anybody is interested – NFFS and INAV have put out another fly-at-home postal challenge – for Walkalong Gliders.

Announcement is in INAV at: https://indoornewsandviews.com/


A plan is provided, but it is not a one-design contest.  Any design.  No restrictions (except that the flying is to be done in your home).
The objective is to accomplish as many as you can, of 6 challenges, by the end of February.  The challenges are:- a 30-second flight- a 60-second flight- 3 laps on any closed course (one flight – no relaunches – typical)- 3 inflight handoffs from one pilot to another (also in one flight)- 30 second flight without a board (making lift with hands / head / body)- 30 second flight with a model of your own design
Photos and video are encouraged but not required.  We’ll take your word for it, with or without documentation.  There’s a submission form on INAV, or you can email results to me and I will make sure they get posted & tabulated.
A few plans & photos attached to pique your interest, especially if you are not already familiar with walkalong gliders.  For further info:
NFFS YouTube channel (subscribe if you haven’t already): https://www.youtube.com/channel/UCucmaPRq2ws6rRTMHX_38YA
NFFS Sympo article on walkalongs (posted with NFFS permission): https://drive.google.com/file/d/1aTGzFi64OcVq234BS0Jq-LnAPWCKea6x/view
Feel free to pass this along to anyone you think would be interested; publish to your local clubs; etc.
Hope you are all in good health and good spirits during these rather unusual times!
-David Aronstein

Upward air pressure created by the box lid creates the lift to enable flight of this glider
Use your imagination! Look what is possible

Finally A fix for Fly Away Gliders—Introducing an effective DT (Dethermalizer) System designed by Dave Higgins

Introducing the The Flip DT System for 12” to 16” Wingspan Gliders.

Catching a really good thermal for a glider in most cases is a good thing. But it could easily turn out to be a bittersweet experience—something that glider owners know too well—the dreaded O.O.S. Syndrome otherwise known as “Out Of Sight.”

Click the photo or the link above to go to the webpage. Plans and detailed instructions are included on the page.

“This D.T. system is about as simple as it gets . . . .when the lead ball falls away from the slot in the D.T. arm, it falls down and aft causing the center of gravity of the glider to shift aft about 0.75 inches, which causes the glider to suddenly stop circling in the thermal and immediately whip stall. To date, I’ve had at least a dozen successful D.T.s with this system in light thermal conditions.” — David Higgins 9/24/2020

A Photo Gallery and Slide Show is also included to show details and aid in understanding how it goes together.

HAFFA Tribute to Tem Johnson: Our Famous KC Glider Guider!

Tem at his best! Studying his details notes ready to compete in the auditorium!

2020 HAFFA Thanksgiving update: As it is now Thanksgiving week….which is now over… and I have had my yearly dose of turkey, sandwiches…turkey pot pie, turkey soup, turkey salad sandwiches…

I was thinking of all the people I have been lucky to meet over the years. One of those people was our own club member Tem Johnson. I wanted to get out a quick post about Tem. I am so thankful to have known him for at least a decade or more.

Example of Tem Johnson’s Cat 1 Glider (I have 30 or 40 of these drawings) plan included

We have been updating our Glider pages for the HAFFA website. This post will eventually morph into a separate page under the “Galleria of Gliders” section of our website. Nisley has done a “bang-up” job….and has enlisted the assistance of Dave Higgins from the Seattle area. I have been wanting to get a start on another local HAFFA member who left us with a legacy of competitive glider designs….so this post is just a start on “Tem Johnson’s Legacy”

Tem Johnson was an excellent model airplane craftsman and competitor. He passed away going on 3 years ago…..and caught the big thermal June 22, 2017 for his final flight. He was a local active member of the Topeka Model Aircraft Club and Heart of America Free Flight Model Airplane Club for decades within the KC area. Tem was a fixture at many model airplane contests, on the local and national levels. Tem competed and won against some of the worlds best free flight modelers frequently at the yearly national contests in Moscow Idaho and Johnson City Tennessee over the years. Tem logged many miles going to contests with his OFBs “old flying buddies” Emil Schutzel, Gary Hodson, and Larry Coslick. Tem majored in Mechanical Engineering at Purdue. He always took an organized scientific approach to model construction as well as the art of flying competitively. He created many personal reference note books with full of documentation and records and data along with a performance summary of each design. Many of his designs and aerodynamic related technical articles were published in technical journals and news letters. His JETEX Payload design appeared on the 1961 Zaic Yearbook page 238. His HLG the Bronco appeared in Zaic Year book as well. (Dave Higgins researched Tem’s Bronco outdoor chuck glider is in Zaic’s 1964-65 Yearbook on page 166.  This is the same yearbook that the Sweepette 16 Mk. III and Sweepette 18 Mk. 9 appear.) Tem had an encyclopedic knowledge of model airplanes and lectured on many flying and design topics. His dry wit and competitive spirit are deeply missed by the model airplane community.

Dana Field always reminds me of Tem’s indoor 30 second flights in our 26 foot ceiling gym at Osawatomie. “Tem would pull out his catapult glider….walk to a certain pre-determined point on the floor…..aim at a certain spot in the ceiling and let it go…..just has it appeared his glider was going to bounce off the ceiling….it would transition instantaneously into a perfect set-up for a slow descent circling gracefully ….it seemed forever to land perfectly on the gym floor with no damage…..really amazing”.

I intend to keep adding to this post over the next few weeks. Come back and visit it again for more info. There is so much to cover. When I met Tem he was mostly into indoor gliders. By the way his real name is “TEM” spelled with an “E”….I will explain that in a future post. However for years he had been flying and designing outdoor competitive designs decades before I had met Tem. One of his most famous designs was the “Bronco”.

Dana Field had published this “Bronco” design a couple of times in our “Dispatch News Letter” over the last few years. Several of our club members have built this glider. A good consistent flyer. I will get the plan and add it in a future post.

Image courtesy of Dave Higgins

Gliders Group Forum is the latest category added to “Galleria of Gliders”

Gliders Group Forum is the latest category added to “Galleria of Gliders” and it is designed to get people talking and thinking about all aspects of model gliders, from the most basic chuck and catapult gliders to some of the current ARF/RTF radio controlled gliders.

Topics may include glider aerodynamics, balsa wood selection, construction techniques, glider design parameters, flight trimming, etc. We want to have a free exchange of ideas to benefit everyone, especially those who are new to this aspect of aeromodelling.

For instance, suppose someone has a problem with their catapult glider looping during the catapult phase and wants suggestions on how to solve this problem.

I or someone else may suggest that they warp the trailing edge of the stabilizer down around 1/64” to 1/32” and remove some clay from the nose of the glider and try launching it again, and someone else may have another useful suggestion that worked for them. 

Another person may have a suggestion on some building technique that they used relating to gliders and wants to pass that “tribal” knowledge on to others. 

So come see what all the HUBBUB is all about . . .

NOTE: The dictionary defines HUBBUB as a situation in which there is much noise, confusion, excitement, and activity.

Doesn’t that describe a Rowdy Group of Glider Enthusiasts at a Flying Event Chucking their Gliders?

Go to GLIDERS GROUP FORUM. You’ll be glad you did.

HAFFA November Indoor Flying Update

HAFFA November Indoor Flying Update

Modified Guillows “Sky Cadet Airplane”

Just wanted to give everyone a heads up about our November 2020 Osawatomie Auditorium Session. Photo link included below

Paul Meganroth…Roie and Cheryl Black, Dana Field…. we all had a good day of flying. We flew a lot of different models. We all flew the P18 event to get warmed up.  We are all getting better at indoor flying. Paul turned in a 2 minute and 6 second flight once he got his P 18 dialed in. 
Dana flew hand launch glider. Dana had built the new glider from a Joshua Finn kit called the “Cat’s Meow” carbon and foam glider. He is still working out the kinks with this new machine. I flew mini stick and managed to get a 4 minute and 10 second flight. Paul flew his penny plane with great results. At one point he would have had an 8-minute flight with his Penny Plane…. however it stuck to the side wall of the gym walls fabric material….. so we stopped the clock and got a long kite pole to bump it off the wall and started the timer again once it popped loose from the wall. We did not count this as official…. but the Penny plane continued on for almost 3 minutes….and it would have been almost eight minutes total when we added the two times together. It was really fun to watch. It has been a while since we had a flight that long in the gym. 
I had a good time just watching all the airplanes fly. My new P18 (A Dave Higgins Design called the ” PURSUIT P18 “) flew quite well but not good enough to beat Dana or Paul. I still need to get some stiffer wing posts….the wood I had used was not stiff enough for the flight loads encountered….during some minor taps and bumps on the walls and ceiling of the gym.

Roie showed up with a Guillows Cadet that he had revamped for indoor flying and made it portable for easy transportation as well. I like how Roie built it so it could be stored for travel in a cardboard box easily with a small footprint of space…in the trunk of a car or back seat…. this modified plane would break down easily… it was held together with rubber bands.

Dana brought a Dave Diels kit and opened the box to reveal tons of documentation and 6 sheets of plans and several sets of laser cut parts.   I had never purchased a Diels kit….wow you get your money’s worth! Check out the photos of the “un-boxing”

Anyway a good time was had by all next flying session will be in December the first weekend in December. It was a pain…. but we wore masks. And stayed distant from each other. Thanks again Renz.

https://photos.app.goo.gl/h9q4Bw4MMeDK1fRX9