Air Scoop Newsletter
Pictured on the left is AMA Area VP Rick Crow, who spoke at the November 6 Club Meeting. He was very knowledgeable about FAA and AMA Rules.
AMA District XI AVP, said he spoke with the FAA and found that Black Horse Field does not need a Letter of Agreement (LOA) with the FAA, as it is in a Class E extension to Class D airspace (to the ground), but not in a “surface area of Class E airspace designated for an airport” that needs an LOA. This is backed up by the fact that the LAANC grid for Great Falls International does not extend over our field. Presently there is not an altitude limit designated for Class E extensions, as it is not Class G (uncontrolled) airspace where 400 feet is the limit in the regulations. I’m sure this will change.
We really liked visiting with him, hope he comes again, and maybe brings one of his big planes to fly. He likes the 40% size.
Winter Indoor Flying has started
I personally haven't been flying this winter, might later on. But I invite you all to show up on Wednesday nights and see what's it all about. A new trend this year seems to be small fixed winged planes. I didn't see one quadcopter, but I'm sure they will be showing up in the near future. Somebody told me Zack at Hobby Time has ordered a couple of those Carbon Cubs. They look llike blast to fly. Prior to flying the other night, there was a basketball practice, and the janitors didn't get the packets put up, like they normally are, and they were a hazard to flying. Still a lot more airspace than we had at the Longfellow School.
Martin Müller Designs RC Vehicles that Fly at Appropriately Scaled Speeds
I'm sure we've all had the experience of watching a huge airliner fly overhead at what appears to be an impossibly slow speed. Most of these jets have to be moving at least 240 kilometers per hour (150 miles per hour) just to get off the ground. Although we certainly realize that they are actually flying quite swiftly, that knowledge doesn't jibe with the tortoise-like pace that our eyes are seeing.
We can recreate flying replicas of airplanes in just about any imaginable size and level of detail. Yet, that illusion of speed (or lack thereof) almost never translates well. Most RC models appear to be flying much faster than their full-scale brothers. Martin Müller decided to address that disconnect. Martin's idea was to create a scale model of an Airbus A310 airliner that would fly at scale speeds. This meant that his 2-meter-span (79 in) Airbus (approximately 1/22-scale) would have a takeoff speed of about 3 meters per second (6.7 mph). Martin knew that creating a model capable of flying at such slow speeds would require an extreme emphasis on shedding weight and more than a little bit of clever thinking. Weight-saving efforts can be found throughout Müller's Airbus. Custom-molded Depron foam parts and tiny brushless motors are just two examples. The most unique lightweight feature of this model is the fuselage. It is basically a large Mylar balloon in the shape of an airplane body. When filled with helium, the fuselage actually provides 40 grams (1.4 oz) of buoyancy. That's a significant value considering that the flying weight of the entire model is around 300 grams (10.6 oz).
The inflated fuselage has sufficient rigidity that no additional bracing is required. In fact, the right and left wing panels are not even connected to each other with a common spar. They are simply glued to the Mylar with a butt joint.
Despite Müller's drive for a super-lightweight airplane, he still incorporated several functions usually reserved for models with a more accommodating weight budget. His Airbus has retractable landing gear, flaps, lights and wing spoilerons. It is amazing that he was able to fold in so many different scale features in this model.
The Airbus is amazing to see in flight. It flies so slowly that it appears to be defying physics. Müller often flies the model indoors with no problem. When he wants to fly the Airbus outdoors, he trades the helium for air. Yes, that's right…he uses air for ballast with this model!
Martin created the Airbus several years ago. In fact it appeared just a few years after the Shock Flyer's debut. He doubts the practicality of an inflatable model like the Airbus as a mass-produced kit, but it has inspired others to create similar airplanes. His friend Rainer Mugrauer also built a helium-filled Airbus, his an A320 model. Although Mugrauer's Airbus lacks flaps, landing gear, and lights, it is larger and flies even more slowly than Müller's.