"The first man to break the sound barrier,
Chuck Yeager, and who undoubtedly
had 'the right stuff,' died on December 7, 2020 at the ripe old age of 97. You can't
take West Virginia out of the boy. Charles Yeager was born on February 13, 1923,
in Myra, West Virginia, deep in the heart of Appalachian hill country. As a child,
Yeager shot squirrels and rabbits and skinned them for the family's dinners. In
September 1941, armed with his high school diploma, Yeager enlisted in the Army
Air Forces, which was the precursor to today's U.S. Air Force. Yeager became an
airplane mechanic. After tagging along with a maintenance officer who was flight-testing
an airplane, Yeager decided to sign up for a flight training program..."
"Advanced designs that will propel NASA's
first all-electric X-plane, the
X-57 Maxwell, to flight recently underwent wind tunnel testing at Langley Research
Center in Hampton, Virginia. These tests, which took place in the Langley Low-Speed
Aeroacoustic Wind Tunnel, were conducted to gather valuable operational and performance
data for flight conditions, using two of the full-scale propeller assemblies seen
above, provided by Empirical Systems Aerospace, or ESAero, of San Luis Obispo, California.
NASA will install 12 of these electric high-lift motors and propellers into the
final configuration of X-57, called Modification IV, or Mod IV. Positioned along
the leading edge of X-57's cruise-efficient wing..."
This particular kit is of the
Marks Models P-51 Mustang.
You can see the Marks Models label was pasted over a Dynaflite box. An Internet
search shows at least two varieties of box label, depending on the era. Mark Smith,
of Windfree and Windward R/C glider fame, founded the company. According to the
website in 1999, "Marks Models became Dynaflite many years ago." The date seems
to be around 1995, when Hobbico bought Marks Models, and then turned it into Dynaflite.
Construction was of balsa and plywood, vacuum-formed plastic components, and a sheeted
"The Air Force's announcement was quite the
surprise - as it wasn't expected that the NGAD program was this far along, but rather
was in the early-phase technology development stage. Last week, the Congressional
Research Service released an In Focus report on the United States Air Force's
Next-Generation Air Dominance (NGAD) program. The report was prepared following
the announcement by Dr. Will Roper, assistant secretary of the Air Force for Acquisition,
Technology, and Logistics, that the Air Force had flown a full-scale flight demonstrator
as part of the program to develop a family of connected air warfare systems. The
Air Force's announcement was quite the surprise - as it wasn't expected that the
NGAD program was this far along, but rather was in the early-phase technology development
stage. It wasn't expected that the project would yield actual hardware..."
Dremel Model 381 Moto−Tool
Kit is the next generation after my Dremel Model 371 Moto−Tool kit that my Dremel
Model 370 Moto−Tool was part of. Somewhere along the line I disposed of the plastic
box that held the Moto−Tool and accessories, so I looked on eBay for a replacement.
After many years of waiting, the closest I came was this Dremel 318 Moto−Tool Kit.
It appears to be identical to the Model 371, only it came with the Dremel Moto−Tool
Model 380. The Model 380 has ball bearings whereas the Model 370 uses brass bushings.
This Dremel Model 381 Moto−Tool Kit appears to be in like-new condition and looks
like it has never been used. Scans of all the manual pages are posted below in case
you have been looking for them.
amazing how many iconic and forgotten
radio telescopes pop-up in movies, TV shows, and documentaries. The human eye
was our first space image detector. On a beautifully clear night at the Aoraki Mackenzie
International Dark Sky Reserve in New Zealand with the Milky Way displayed above
us, we can see about 5,000 stars. But to really see - that is, to detect and communicate
into space - a radio telescope is needed. Such devices can receive radio waves from
astronomical sources in the sky and are the main observing instrument used in radio
astronomy. Whereas optical telescopes study the light wave portion of the spectrum,
radio telescopes focus on the radio frequency portion of the electromagnetic (EM)
spectrum emitted by almost all astronomical objects..."
"Come away with me, Lucille, In my merry
Oldsmobile. Down the road of life we fly, Automo-bubbling, you and I. To the church
we'll swiftly steal, Then our wedding bells will peal, You can go as far as you
like with me In my merry Oldsmobile." "In My Merry
Oldsmobile" was first produced in 1905" with music by Gus Edwards and lyrics
by Vincent P. Bryan. That was prior to Henry Ford's Model T hitting the showroom
floors. Contrary to popular belief, the Model T (introduced in 1908) was not the
first car built in America; it was the first high volume production line car to
be produced using an assembly line - Ford's famed innovation. Ransom Olds sold his
first car in 1900, as presented in this 1954 issue of Air Trails magazine. The Wikipedia
entry for Oldsmobile claims their 1902 model was the first mass-produced auto in
"Tiny aircraft that weigh as much as a fruit
fly could serve as Martian atmospheric probes. Despite weighing about a third of
nanocardboard flyers have the ability to lift payloads. In this artist's conception,
fleets of flyers could be launched from ground-based rovers and steered with lasers
to collect samples. Planets and moons with thin atmospheres and low gravities would
enhance these flyers' ability to levitate by shooting air through their corrugated
channels. A study demonstrated nanocardboard's flying and payload-carrying abilities
in an environment similar to that of Mars..."
The middle of the last century was a time
for people with a penchant for innovation, experimentation, designing, and building
high technology products. Aviation, aerospace, land and sea transportation, medicine,
manufacturing, chemistry, physics, astronomy, communications, electronics, mechanics,
nuclear technology, remote exploration of space and the sea, and many other realms
were pushing forward the frontiers of knowledge (or pushing back the frontiers of
ignorance, depending on your viewpoint) at an incredible rate. Both trade and hobby
magazines often featured articles encouraging participation as technicians and engineers
in a field related to hobby interests (Ham radio, model airplanes, boats, and cars,
etc.). Air Trails magazine ran many such pieces, including this 1954 example...
signs trio of drone deals as it races to play catch-up with Amazon. Brent Morgan
is one of many Americans who have had a Walmart package dropped off at his home
during the coronavirus pandemic. Yet his delivery did not fit the typical mold.
A drone flew overhead and dropped a bag in his front lawn. Inside, there was an
at-home Covid-19 test kit. The aerial delivery in Morgan's Las Vegas neighborhood
is part of a new effort by Walmart to understand how drones could expand its on-demand
deliveries and help it better compete with Amazon. Over the past month, Walmart
has announced three deals with drone operators to test different uses for the drones.
It's teamed up with Flytrex to deliver groceries and household essentials in Fayetteville,
The October 2020 issue of Astronomy
magazine has a great article celebrating the
60 year anniversary of Celestron. Did you know that at one time Celestron made
16"and 22" telescopes? Author Michael Bakich covers the entire history beginning
in 1955 when Tom Johnson designed and built his first telescopes as part of his
Valor Electronics company in Gardena, California. Models were sold for amateur and
professional observers. It was the famous orange 8" Celestron that really launched
Celestron to fame in 1970, with a price tag under $1,000. The company went through
many owners and management change-outs, while for the most part successfully enduring
market downturns and emerging today as a very profitable and successful telescope
maker. The story is a good read.
It has been a long time since Microsoft released
a new version of Flight Simulator.
According to a review done by IEEE Spectrum writer Mark Pesce in an article
Flight Simulator 2020 Blurs the Line Between Tools and Toys," "With real-time
air-traffic and weather data, you'll forget you're at your desk. My nephew recently
sent me an email about our latest shared obsession: Microsoft's Flight Simulator
2020. 'Flying a Cessna 152 in this game feels exactly like flying one in real life,'
he wrote. And he should know. Growing up next to a small regional airport, he saw
private aircraft flying over his home every day, and he learned to fly as soon as
his feet were long enough to reach the rudder pedals. While he relaxes with the
game, my experiences with it have been more stressful..."
Mr. Peter M. wrote a couple weeks ago
requesting a high resolution version of this 4−view line drawing of the
DH60G Gipsy Moth in order to assist his in creating a 3D computer model of it
on the 3D Warehouse website. It appeared in the May 1969 issue of American
Aircraft Modeler magazine. As you can see from the screen capture above, he
did an amazing job! Click on the image to view the live 3D model that can be rotated
and zoomed. Peter's model replicates the airplane flown by Amy Johnson on her historic
11,000-mile solo flight in 1930 from solo from London England to Darwin Australia.
Many thanks to Peter for making this available...
Model railroading is probably as big a deal
or even bigger today than it was when this "Basement
Railroad" article appeared in a 1954 issue of Air Trails Hobbies for Young
Men magazine. The level of engineering and artistry exhibited by model railroaders
is utterly amazing. The same can be said for most forms of modeling, but the layouts
created by model railroad enthusiasts trumps what you typically see for model car,
model boat, or model airplane displays. As shown here, there are elaborate railroad
layouts hidden away in basements, garages, and back rooms all over the world. Pitifully,
the decades-long work of some modelers is lost when he passes on, and the parts
are sold off in estates sales or auctions. It pains me to think of the creations
that have ended up in a landfill because the inheritor did not appreciate the value
of the work and equipment. Of course that happens much less frequently these days
with the availability of Etsy and eBay. In fact, some pretty amazing prices are
paid for vintage trains...
"According to Unmanned Systems Technology,
5G will enable three prominent
drone technologies. It has been shown that flying drones on cellular networks,
particularly 5G networks, is a viable option for delivering low-latency and high-performing
drone applications such as emergency supply delivery, search and rescue missions
and equipment and infrastructure inspection. According to Unmanned Systems Technology,
5G cellular data will enable three prominent drone technologies: Unmanned Aircraft
Systems Traffic Management (UTM), Beyond Visual Line of Sight (BVLOS) flights and
Sensor Data Transmission (SDTX). UTM will deliver a globally standardized technology,
allowing 5G networks to be integrated with these traffic management systems to enhance
the safety and security of commercial drone operations..."
"Rolls-Royce has announced on its blog that
the company has completed testing of the technology it plans to use in its line
of electrically powered planes - one of which they expect will break speed records
electric airplanes. The new plane will be one of the core products of the company's
ACCEL initiative, whose main objective will be to produce zero-emission planes and
engines for other plane makers, and to be net-zero by 2050. Rolls-Royce has also
created a video showing parts of the ground testing, which has been posted on YouTube.
The testing was done with a plane segment featuring a full-scale model of the front
of the fuselage of the ionBird plane. It was fitted with a 500-horsepower electric
engine backed up with 6,000 cells..."
1968 was the beginning of the 3-man crew
Apollo era with the first manned space flight of the series, Apollo 7, launching
in October of that year. Model rocketry was all the rage. Per this article from
a 1968 issue of American Aircraft Modeler magazine, the average age of
an American model rocketeer was about 13.6 years. I was 10 years old at the time
and had by that time been building and flying model rockets for a year or two. Being
a fan of both airplanes and rockets - hence this website's name - I liked the
rocket boost gliders. The Estes Falcon, Nighthawk, and Space Plane models were
available at the time. The Falcon was the simplest with a pylon-mounted engine that
ejected with the ejection charge. The Nighthawk was more akin to the Polish boost-Glider
in this article, where the power pod separates from the airplane and comes down
via streamer while the airplane glides back to earth...
The National Association of Rocketry (NAR)
has been around since 1957. At one time, the Academy of Model Aeronautics (AMA)
was pretty tightly joined with them in covering model rocketry events and promoting
model rocketry. In fact, for while there was space allotted in American Aircraft
Modeler, AMA's monthly magazine, for model rocketry. From February 1968 through
August 1969 there was a newsletter feature entitled "Model
Rocketeer" in addition to a separate article, often written by G. Harry Stine.
A complete list of all editions is provided. The NAR and AMA still work together.
For example, the National Aeronautic Association (NAA) delegates authority for aeromodeling
and spacemodeling to the Academy of Model Aeronautics (AMA), who has in turn delegated
Spacemodeling (model rocketry) to the NAR...
2020 ARRL Online Auction will be
held October 15th-22nd. The preview began October 8th.
"Don't miss this opportunity to get in on the fun and bid on a variety of items
at the 15th annual ARRL Online Auction to benefit ARRL educational programs. We
suggest you read through the 'Help' section, listing bidding tips as well as the
link to our Help Desk should you need assistance. All bidders must register (your
arrl.org user ID and password will not work on the auction site). If you have registered
for a previous ARRL Online Auction, you may use the same log-in information..."
Here is the full set of building instructions
for the beautiful 1970s era
Airtronics Aquila sailplane. A fairly compressive building description was published
in the May 1975 issue of R/C Modeler magazine when the Aquila first appeared,
but these are much more extensive. Aquila kits have not been manufactured for many
years, and some of the ones that appear on eBay are missing the instruction booklet,
so now you can access a copy of the original in its entirety. Photos of the kit
parts and plans can be seen on my main Airtronics Aquila page. You can also see
the 105% Aquila I built from enlarged plans.
"Aircraft play an essential role in how we
study and understand Earth's surface, climate, and atmosphere. Now, a new
commercial unmanned aircraft system (UAS) aims to bring about a powerful way
to observe our planet for days or weeks on end. With the help of NASA's Ames Research
Center in California's Silicon Valley, Swift Engineering of San Clemente, California,
completed a two-hour flight test of their Swift High-Altitude Long-Endurance (HALE)
UAS. The applications of the technology - for science, agriculture, and disaster
response - could have a real impact on our everyday lives. Swift's 72-foot solar-powered
HALE weighs less than 180 pounds, flies 10- to 15-pound payloads at a time..."
Back in the days when the cycle time between
writing articles, proofing, laying out pages, shipping hard copies to printers,
setting up presses, and preparing magazine for mailing was about a three or four
month process, coverage of a July-August event would finally appear in November-December
timeframe. Photos, of course, were all in black and white. Nowadays, with everything
done digitally and involving almost no physical, hands-on steps in the process,
we often see Nats event happenings as early as September. The November 1974 issue
of American Aircraft Modeler magazine included extensive coverage of that
year's Nats, which was held in Lake Charles, Louisiana. This is the
control line stunt portion. If you were around during the era...
"This week, a 13-year experiment in harnessing
wind power using kites and modified gliders finally closes down for good. But the
technology behind it is open-sourced and is being passed on to others in the field.
As of 10 September, the
airborne wind energy (AWE) company Makani Technologies has officially announced
its closure. A key investor, the energy company Shell, also released a statement
to the press indicating that 'given the current economic environment' it would not
be developing any of Makani's intellectual property either. Meanwhile, Makani's
parent company, X, Alphabet's moonshot factory, has made a non-assertion pledge
on Makani's patent portfolio. That means anyone who wants to use Makani patents,
"This summer, a team of researchers, engineers
and a drone pilot of TU Delft traveled to an airbase in Germany for the first real
test flight of the scaled flight model of the energy-efficient aircraft design called
Flying-V. The project was announced last year together with KLM. After a period
of extensive wind tunnel testing and a series of ground tests in the Netherlands,
it was time to perform the first flight and obtain an impression of the flight characteristics.
The aircraft had a very successful maiden flight. Project leader Dr. Roelof Vos
and his team of researchers and engineers took the 22.5 kg and 3-m-wide scale
model of the Flying-V for flight tests to a well-guarded airbase in Germany, where
they could work together with a team from Airbus. The pilot's task was to take off,
fly a number of test maneuvers and approaches until the batteries were nearly empty,
If you became involved with the Academy
of Model Aeronautics (AMA) and its annual Nationals Aeromodeling Championships (Nats)
contest anytime after 1995, then you never were part of the crowd that chased the
venues around the country from year to year. Although AMA headquarters had been
located in Washington, D.C., and then Reston, Virginia, prior to then the Nats organizers
attempted to hold the contest in East Coast, Midwest, and West Coast areas. Doing
so helped to spread out the hassle involved in packing up models and equipment and
traveling all the way across the country every year. The current Muncie, Indiana,
location was chosen specifically to provide a centralized spot with easy access,
relatively decent weather, and with real estate cheap enough to procure a very large
parcel of land. The
1974 Nats was held in Lake Charles, Louisiana...
AMA's Model Aviation magazine editor
Jay Smith announced in the October 2020 issue that all plans offered by the
AMA Plans Service are
being discounted by 20% through the end of October. Building
activity has evidently picked up this year, possibly due to so many people being
cooped up inside due to the Wuhan Virus epidemic (aka COVID−19, which originated
in China). Prices have been going up on new kits, probably due to the shocking cost
of balsa price increases lately. Aircraft plywood and spruce has followed suit,
although not by quite as much. If you have plans (pun intended) to build a model
airplane in the near or far future, now is the time to stock up on supplies. I have
been running a banner ad (no charge) for the AMA Plans Service for a long time,
so hopefully that has helped steer modelers to their website.
"Autonomous drones will be able to detect
avoid energized power lines following the development of a novel sensor at the
U.S. Army Research Laboratory. Researcher David Hull developed the approach using
a configuration of field and 3D sensors, in conjunction with low-power processing
methods. 'Power lines are small and difficult to see with radar or optical sensors,
but they generate large fields that can be easily detected with low-power, low-cost,
passive electric- and magnetic-field sensors,' Hull said in a statement. Existing
wire-detection and wire-avoidance technologies that use radar and/or optical sensors
have had commercial success, but they are expensive, bulky, and power-intensive
with technical limitations. The detection algorithm developed at ARL is expected
to result in size, weight, power and cost reduction..."
Ah, the days when glow fuel engines were
the rule rather than the exception! Sure, they were mess, noisy, and could be finicky,
but other than maybe an idling 8-cylinder with a high-lift cam, Edelbrock intake
manifold, Holley 4-barrel carburetor, and a set of Hooker headers, there are few
nicer sounds than a model aircraft engine as it comes to life. Sure, I know that
modern brushless electric motors are highly reliable and extremely powerful, don't
annoy the neighbors, and never leave a gooey mess that takes half a roll of paper
towels to clean off your airplane (or helicopter), but those of you who grew up
flying in the pre-electric-flight years know what I mean. I confess to having switched
to electric back around 2005 - except for Cox .049 engines.
McCoy "Red Head" engines were very popular back in the day, and command pretty
good prices on eBay today when in good condition...
drones are a powerful new tool for improving cellular phone and Internet networks.
Fitted with cellular transceivers, tethered drones could quickly be deployed to
replace inoperable base stations and restore mobile coverage. Tethered to tall buildings,
they would offload data during peak hours and shift their position around the clock
to cover varying traffic distribution throughout the day. In rural areas, high-flying
TUAVs promise a more viable alternative to expensive, tall towers needed to provide
coverage to large but sparsely populated regions..."
"Beginning in September, entities across
the U.S. Department of Defense will be able to buy small,
American-manufactured drones from five select companies, allowing users in the
field to quickly and easily gain a bird's eye view of their environment. A spin-off
of U.S. Army efforts to develop a rucksack-packable quadcopter with the Short Range
Reconnaissance (SRR) program of record, the Defense Innovation Unit's Blue sUAS
effort lets U.S. government customers purchase trusted small Unmanned Aerial Systems
(sUAS) that can take off and land vertically. The new drones were developed to comply
with Section 848..."
This excellent quality
Sears "Discoverer" Model 4 6305A, 60 mm Equatorial Refractor Telescope
is now for sale for only $300 + shipping. I am in the market for the larger, 90 mm
version and need to sell this first. If you are interested, please send me an e-mail
that includes your zip code so I can calculate the total cost. Payment can be made
via PayPal. It will also be listed on eBay for $350 to cover their listing fees.
As you can see in the photos on the webpage, everything has been thoroughly spiffied
up and/or restored. I have never seen a finer example of this telescope.
On September 22, 1955, Londoners Sid Allen
and George Redlich guided their 6-foot wingspan "Radio
Queen" across the English Channel from the white cliffs of Dover to Calais,
France, marking a first in the model aviation world - a mere 40 minutes in duration.
It was approximately the same path that Louis Bleriot took in 1909 when he became
the first to cross the English Channel in an aeroplane using his homebuilt XI Monoplane.
As with many (maybe most) record-setting model aircraft flights - be they distance
or duration - a diesel engine (ED 0.213 cu. in. Hunter Diesel) was used as
the powerplant due to their reliability (no glow plug or spark plug to burn out
or foul) and fuel economy. Takeoff weight was 7-1/2 pounds, with 1-1/2 pounds of
it being accounted for by three pints of fuel. Guidance was provided by an ED Mk.
4 Miniature, 3-reed type, from the cockpit of a Auster Autocrat monoplane...
wings instead of propellers help this bird-inspired drone hold its own against
quadrotors. The vast majority of drones are rotary-wing systems (like quadrotors),
and for good reason: They're cheap, they're easy, they scale up and down well, and
we're getting quite good at controlling them, even in very challenging environments.
For most applications, though, drones lose out to birds and their flapping wings
in almost every way - flapping wings are very efficient, enable astonishing agility,
and are much safer, able to make compliant contact with surfaces rather than shredding
them like a rotor system does. But flapping wing have their challenges too: Making
flapping-wing robots is so much more difficult than just duct taping spinning motors
to a frame that, with a few exceptions, we haven't seen nearly as much improvement
as we have in more conventional drones..."
"sUAS-Based Payload Development and Testing
for Quantifying Optical Turbulence" "Within the highly dynamic and hostile
modern-day battle space, the DoD is constantly facing threats from multiple domains.
Unmanned aerial vehicles (UAV), swarms of fast attack craft, anti-ship missiles
and manned aircraft are quickly developing asymmetric options. These threats need
to be tracked, engaged and destroyed in quick succession. However, not all threats
can necessarily be paired with the same weapons system. The use of directed electro-optical
energy has a long history in warfare dating back to the days of the Romans. According
to legend, Archimedes used an array of mirrors to direct beams of sunlight on enemy
ships to burn them down before they could invade Syracuse..."
February 1942 was just a couple months into
the USA's official involvement in World War II. We had been informally assisting
Europe against Hitler's Germany and Mussolini's Italy, and China against Japan's
Hirohito, a couple years prior to the December 7, 1941 attack on Pearl Harbor, upon
which the U.S. declared war on Japan. Germany and Italy declared war on the U.S.
a couple days later. We were suddenly in the game big time. Only because Hitler
and the Soviet Union's Stalin couldn't agree on how to share rule of a conquered
Earth were we spared warring against what would have been an overwhelmingly formidable
Flying Aces magazine provided a lot of coverage of the USAAF's efforts
during the war, in large part to motivate young men to fight for God and country...
"Virgin Galactic's ambitions to develop a
Mach 3 passenger aircraft have advanced with a non-binding MOU with Rolls-Royce
to collaborate on a propulsion system. The company, which includes advanced air
and space vehicles manufacturer The Spaceship Company (TSC), has also announced
the first stage design scope for the build of its high-speed aircraft. This follows
completion of its Mission Concept Review (MCR) and authorization from the U.S. FAA
Center for Emerging Concepts and Innovation to work with Virgin Galactic to outline
a framework for certification. In a statement, George Whitesides, Chief Space Officer,
Virgin Galactic said, 'We are excited to complete the Mission Concept Review and
unveil this initial design concept of a high-speed aircraft..."
offers a powerful way for enterprises to conduct
remote asset inspections during and after the Covid-19 pandemic. The demand
for drones among enterprises is forecast to continue to grow over the next few years,
with Gartner predicting that shipments of enterprise drones will reach 1.3 million
by 2023. Telcos and MNOs are already leveraging drone technology to automate cell
tower inspections, boost operational efficiency, and accelerate the rollout of 5G
infrastructure. As connectivity improves and automation increases, we can expect
to see drones at the edge, completing autonomous missions, and uploading data directly
to the cloud, bringing substantial business benefit to telcos and other enterprises..."
General Electric (GE) produced a series
of informational technical publications in comic book format back in the 1950s.
One was entitled "Adventures in
Jet Power," released in 1950, 1955, and 1960. GE has been a major producer of
jet engines for commercial and military aircraft for many decades. After doing an
extensive search for full versions of the comics, I finally found this 1950 issue
posted on The Fabulous Fifties website. Other of the Adventure Series included "Adventures
in Electricity," "Adventures into the Past," Adventures Inside the Atom," and "Adventures
in Electronics." Here is a good list of all of the GE Adventure Series comics. Many
of these comic books can be bought on eBay...
"Every aircraft wing and body has basically
the same shape. 'That means they're suboptimal,' says MIT's Ben Jenett in our latest
episode of Here's an Idea - a Tech Briefs interview series with leading aerospace
researchers. From take-off to landing, an aircraft experiences a variety of conditions,
and must frequently change angles to adjust to surroundings. What if a
wing could adapt...on the fly...to turbulent winds or an oncoming airstream?
Ben Jenett, a PhD student at MIT and a former space research fellow at NASA, is
helping to develop a new kind of aircraft wing that's flexible and changes in-air..."
My best friend and fellow model airplane
and rocket, Jerry Flynn, received an
Berkeley models Astro−Hog
kit along with a few others and some engines from an associate of his father. The
guy's father had died and left behind a bunch of modeling stuff. At the time, neither
Jerry nor I had built or flown a radio controlled model, having at the age of around
14 years old not had the money to buy equipment. Back in the early 1970's it was
not like today where you could buy R/C models and equipment for very little money.
Jerry went ahead and built the Astro−Hog over a timespan of about a year, and during
that time he bought a second-hand Futaba 4-channel radio (27.095 MHz version).
He did his typically very nice job of building and doping the airplane...