- Home Page Archive #19 - "Heavier-than-air flying machines are impossible."
Lord Kelvin, 1895
In order to provide for a reasonable homepage loading time, it is impractical to just
keep adding items to the top of the stack and keep all the old stuff there too. Therefore,
I have created these Airplanes and Rockets Homepage Archives to maintain a historical
snapshot of everything once on the homepage. Unfortunately, I did not think to keep a
record until around Fall of 2009; I had just been deleting items from the bottom of the
stack. No more, though. Hence forth, if you recall seeing something on the homepage but
it is no longer there, please check out these archive pages. I also keep an archive of
all the modeling news additions:
cars of yesteryear were the equivalent of today's electric cars - they reached fairly respectable speeds, but the
range between refills wasn't very far. Side note: There were actually electric cars in the early 1900s, but their
underperformance made the steamers look like marathoners. The Stanley Steamer is probably the most recognized steam-powered
car. Late night host and automobile aficionado Jay Leno features his totally restored
Stanley Steamer on his Jay Leno's
Garage website. In an edition of Popular Science a couple years ago, Jay reported on another of his steam cars: The
1925 Doble once owned by Howard Hughes. Advantages of steam power were many, including quite operation, no gear box,
very few moving parts in the engine, ease of...
Ducted Fans! Scale-like R/C Planes
with most other aspects of aeromodeling, ducted fan
propulsion systems have come a long way since the time you had to build the entire unit yourself. Modern prefabricated
ducted fans are molded glass-filled nylon or carbon fiber that has been engineered, manufactured, and optimized in
every aspect of strength-to-weight, thrust, and dimension for the intended application and powerplant. It is like
the difference between early radio controlled helicopters that were built on hand-drawn plans and built on a lathe
and end mill, and the models you can buy now that practically fly themselves right out of the box. If you do, however,
relish the thought of designing and building your own ducted fan or if you just like learning about how the pioneers
developed the science into what it is today, then this article is for you.
"Wrongway Feldman's" Krieder Reisner KR21
other night Melanie and I were watching an episode of the old Gilligan's Island television show titled "Wrongway
Feldman," which was about a long-forgotten, famous aviator who took a wrong turn during a race and ended up being
stranded on the same island as seven famous castaways. The "Spirit of the Bronx" airplane featured in the show was
referred to by Wrongway as a Krieder Reisner KR21. It is a right nice looking biplane. I immediately hit the pause
button and looked it up on Google. The KR-21, according to the EAA AirVenture Museum's website, was manufactured in
the 1929-1930 timespan, had a 22'-7" wingspan, and a 125 hp Kinner B5 (R-440), 372 cubic
inch, 5-cylinder radial engine. Not very many were made, so it is remarkable that this one turned up in the show.
Viper Pattern Ship
visitor Steve G. wrote asking that I post the article for the
Viper R/C pattern ship that appeared
in the January 1973 edition of American Aircraft Modeler. The Viper won the "Best Original Design" award and the "Most
Outstanding Finish" award at the 1972 Toledo show. Data obtained during research into a scale P-51 Mustang model contributed
heavily to the wing and fuselage design. At least four versions of the Viper were built by designer Dario Brisighella,
but the first, which won the Toledo trophy, had not yet left the ground at the time of the article's publication.
Viper is a full-house ship with a laminar flow foam wing, balsa fuselage, retractable landing gear, and uses a Webra
Anti-Grav [The G-Engines Are Coming]
visitor Christopher C. wrote asking that I post the "Anti-Grav"
article from the October 1958 edition of American Modeler. If you have never read about anti-gravity theory
(by non-lunatics), then this would probably be a good place to start. Honestly, I was
not aware of the thought experiments for anti-gravity that have been devised relating directly to the Unified Theory.
Gravity has long been the sole force that has defied inclusion. The electromagnetic and weak and strong nuclear forces
are fully integrated, but not so gravity. Conjecturing the existence of both gravitational creation
(Hoyle) and extinction (Heim) forces provides a means of
controlling the force by arbitrarily creating gravitational attractive or repulsive forces. It's an interesting read.
R/C Aircraft Carrier Launches R/C Airplane - Video
former and current military members will appreciate this. For that matter, so will a lot of non-military members.
Here is a video of a very large scale R/C model of the USS Kitty Hawk aircraft carrier being used as a launch platform
for a radio controlled T-38 model airplane. Adding to the cool factor is the use of an R/C tugboat for pushing the
aircraft carrier away from the docks before it gets underway. Per the YouTube website description, "Our 13-foot
USS Kitty Hawk replica launches her planes to the beach in this RapidNadion adventure. Some aircraft never make
it off the deck, and others crash into the drink due to Kitty Hawk's prototype catapult system...
Bipes 'N Tripes
visitor Ken E. wrote to request a pair of two articles from the "For the Tenderfoot" series that was a regular
feature in the AMA's American Aircraft Modeler magazine. The first one, which appeared in the May 1974 edition,
was titled, "Monsters and Monoplanes." As was typical, all the models are 1/2A powered control line with sheet (profile)
fuselages and flying surfaces. This series represents World War I era designs with
two bipes and two tripes! The plans are very well done and
include lots of detail for insignia. Enjoy.
Monsters and Monoplanes
visitor Ken E. wrote to request a pair of two articles from the "For
the Tenderfoot" series that was a regular feature in the AMA's American Aircraft Modeler magazine. The
first one, which appeared in the March 1974 edition, was titled, "Bipes and Tripes." As was typical, all the models
are 1/2A powered control line with sheet (profile) fuselages and flying surfaces. This
series represents World War I era designs and one is even a twin engine biplane! The plans are very well done
and include lots of detail for insignia. Enjoy.
Lockheed Air Express Article & 4-View
Berliner was a prolific researcher and publisher of books about model airplanes and full-size airplanes. His articles
and photographs, often graced by master draftsman and artist Björn Karlström's drawings, appeared fairly often
in American Aircraft Modeler. Here, Don gives a brief history of the
Lockheed Air Express. One interesting note is that
the aircraft featured an open cockpit - even though the passenger compartment was completely enclosed - at the insistence
of pilots (many former Air Mail men) who claimed they needed the multi-sensory environment
for safe navigation because it allowed them feel the wind shifts and changes in attitude. Website visitor Christopher W.
requested this article.
Flying Funtique Article & Plans
visitor Ken E. requested the Flying Funtique
article from the April 1969 edition of American Aircraft Modeler. The Flying Funtique is a rubber-powered
free flight model that is part of AAM's "For the Tenderfoot" series that presented easy to build airplanes with full-size
plans printed with the articles. A unique feature of the Flying Funtique is that the designer, William Hannan, provided
patterns for finishing the model in five different versions of livery.
Bristol "170" Freighter
visitor Robert C. wrote to request that I post the article and plans for the British
Bristol "170" Freighter that appeared
in the 1961 Annual edition of American Modeler. This control line version has a 40" wingspan and is powered
by a pair of .049s for scale-like flight characteristics or a pair .09s if you want aerobatics. Diesels are shown
installed in the original. The fuselage, wing, and tails surfaces are all built-up and sheeted with balsa, so she
is a sturdy bird.
UP! - The Real Thing
you read this, veteran North Carolina balloonist
Jonathan Trappe is floating over the Atlantic Ocean somewhere right now in a small wicker gondola lifted aloft
by a cluster of colorful party balloons. It departed from Maine on Thursday, September 12, 2013. A story on the ARRL
website reports that amateur radio is onboard. Mr. Trappe is no newcomer to flying in such contraptions. In
2012 he and his small house used a similar buoyancy arrangement to fly a house with him in it above Mexico. A "toy
balloon" flight over the Alps met with success in September of 2011. Trappe became the only person to have crossed
the English Channel by cluster balloon...
Bean Hill Flyers Sep/Oct 2013 Newsletter
Bean Hill Flyers club is Erie,
Pennsylvania's, only organized control line flying group. It operates under sanction of the Academy of Model Aeronautics
(AMA), charter #4673. Two main flying sites are maintained, one in Albion, PA, and the other in Millcreek, just west
of the Erie city line. This month's Safety column editor Chris Keller takes a humorous swipe at consumer product safety
Willow Grove NAS: America's Best Youthful Flyers
The Academy of Model Aeronautics (AMA) 1961 Nationals competition was held at the
Willow Grove Naval Air Station
in Pennsylvania. Up until the early 1970s, the U.S. Navy sponsored the AMA Nationals in an effort to attract America's
youths into naval aviation as aircraft technicians and as pilots. It ended as youth participation in competition ebbed
and defense budgets got trimmed. This story from the March 1962 American Modeler reports on young men from 42 states
for a new-type Grand National Youth Championship. Do you see anyone you know in the group photo? If so, please send
me an e-mail and I'll add his name to the page.
Fizz-Wizz CO2-Powered Plane
power for model airplanes gained a lot of popularity in the 1950s and throughout the 1960s and then waned for some
reason in the 1970s. The same cycle was exhibited in Jetex type engines.
CO2 engines run off a cylinder of compressed
carbon dioxide gas. A metal tube feeds the top of the cylinder where a metal ball under pressure from the gas seals
off the cylinder until the piston pushes up on it. Doing so forces the piston down to where the gas is ejected at
the exhaust port. Momentum from the propeller mass swings the piston back to the top of the cylinder where it once
again opens the ball valve to start the cycle all over again.
Portable Control Line Aircraft
is a clever control line airplane carrier
deck design that derives it lightness from sparse construction and its compactness from making the modular components
stowable within each other sort of like the familiar Russian matryoshka nesting dolls. It is designed to accommodate
a 60' circle, but slight modifications to the deck components can be easily made for other radii. Not shown in the
plans but likely possible without sacrificing strength and rigidity would be to drill lightening holed in the 1"x6"
and 1"x8" frame members.
Phil & Shaun's Single Channel & Vintage R/C Page
Shaun's Single Channel & Vintage R/C Page is a great website that is dedicated to collecting and presenting
antique equipment and airplanes. They have many examples of escapements, reeds, early attempts at servos, pulse and
proportional, kits, engines, and a lot of other stuff. Bob Aberle reported on this website in his August 2013
Model Aviation column.
P-63 Kingcobra Article & Plans
of us fortunate (or unfortunate, depending on your point of view) to have been in the
model airplane realm back in the 1960s and 1970s (and earlier) are very familiar with
Maxey Hester and his award-winning models. Mr. Hester designed many of the fine scale models sold
(some still) by Sig Manufacturing of Montezuma, Iowa. In fact, if you don't know, Maxey
later married Hazel Sigafoose after her first husband and company co-founder (Glen) died
(during an aerobatic performance). This
P-63 Kingcobra was designed for 'multi'
radio and a K&B .45 engine. The wingspan is about 64".
MSgt. Ford's One-Man Air Force - 43
is a rare treat. MSgt. Gordon Ford's
daughter contacted me after seeing this article on her father's models! She told me he is now living in Minnesota
and still has most of the models
that he so expertly built over the years. Come to find out, American Aircraft Modeler was not the only publication
that featured his handiwork. Click on the thumbnail images to see where the C-133 and the KC-135 are now. I can't
imagine being able to preserve any model that was actually flown often for that long. Many thanks to MSgt. Ford for
his service to the country and for his service to the aeromodeling sport. Thanks also to his daughter for checking
in with an update.
The Nearly Effortless Flight of the Albatross
July 2013 edition of IEEE's Spectrum magazine had a really good article on a high tech study that is being
done on the manner in which an albatross manages to fly great distances and for long periods of time while rarely
needing to flap its wings. As shown in the thumbnail (and in the article), an albatross
performs a series of rapid climbs into very strong wind, turns, and dives leeward nearly to the water's surface, then
repeats the process over and over as it makes its way to its destination. The process is called
dynamic soaring. R/C soaring pilots have
been doing the same sort of thing for a few years now. Obviously the albatross figured out how to fly like that long
before mankind was able to mimic it, but the researchers in the article seem to not have knowledge of the R/C soaring
technique. They are capturing albatrosses in their nests and attaching GPS-based sensors with data recorders to the
birds' back feathers and retrieving the units...
University Scholarships Go to Top Car Modelers
the originality and craftsmanship exhibited in the model car designs entered in this contest sponsored by
Fisher Body Craftsman's Guild
is unassailable, I find myself being grateful that most of them never hit the car lot showrooms
(although some designs are not too far off of what has been produced here and in Europe).
The date was 1954 and imaginations ran wild with concept car configurations, and while just about anything goes in
such competitions, some were downright, dare I say it?, ugly. Of course a look at some of today's concept cars register
the same emotions, so I suppose the old adage about the more things change, the more things stay the same holds true
here. Scholarships handed out to the teenage entrants were very respectable, especially for 1954 - a $4,000 top prize,
which per the Bureau of Labor Statistics' inflation calculator, is equivalent to $34,721 in 2013 dollars!!!
Sketchbook - Model Building Tips
Sketchbook was scanned from the December
1962 American Modeler. Most building tips are timeless. Even in this era of ready-to-fly (RTF), almost-ready-to-fly
(ARF), bind-and-fly (BAF), etc., there are still many modelers who build their own aircraft. One hint is to use milk
rather than water for spraying onto tissue paper. Thomas Hill claims dope will not penetrate the milk solids after
it dries, which keeps weight down since the dope cannot saturate the tissue paper.
Plastic Air Force Collection for Sale
private collection of World War II plastic
identification airplane models is, as of this posting, available for purchase. It is owned by the estate of a
former Lt. Commander in the U.S. Navy who was a Class of 1953 U.S. Naval Academy graduate. Please send me an e-mail
if you are interested and I will pass it along to the owner.
Friend Ship I Article & Plans
and Rockets website visitor Jim S. wrote to request that I post the original article for the
Friend Ship I full house R/C airplane
from the May 1973 edition of American Aircraft Modeler. Jim says he has already built a 30" span version,
but is now looking to build a balsa-framed 60" wingspan version. He must really like the Friend Ship I! The original
model used Glaskin foam wings with fiberglass covering, so the plans do not show a built-up wing construction.
"P.E." - Britain's Best Designer
call P.E. Norman multi-talented
doesn't do him justice. Aside from being recognized, at least circa 1962, as Britain's most accomplished aeromodeler,
he made and played professional violins (aka luthier), wa a wood carver, a silver smith,
a sculptor, and even an artist who painted the image used on the cover of this February 1962 American Modeler.
P.E. is credited with designing, building, and flying the first pendulum-operated-elevator free flight model and has
designed and built many ducted fan scale jet models (long before commercial ducted fan units
Scale Bentley 9-Cylinder Engine on 27% Avro 504K
took Andy Johnston nearly four years to build the true-to-scale engine and another two years to build the Avro 504K
from scaled-up plans. The 9-cylinder engine has 1 mm thick cast-iron liners and aluminum finned barrels. Total
displacement is 347 cc with 700-3500 rpm turning a 25.5×23 custom prop carved to scale. The really cool
thing about the 15-pound Bentley engine is that the entire engine spins, just like real one. It pulls the 116" wingspan
Avro 504K through the air with the greatest of ease.
EAA AirVenture Oshkosh Show to Pay FAA $447,000 for Air Traffic Controllers
read that right. In order to further punish the people who actually pay taxes (not many oPhone
recipients in attendance) in this country, the Federal Government that spends multimillions of dollars on multiple
presidential family vacations each year has told the
Aircraft Association (EAA) that it will have to pay $447k for ATC services this year. During the 2-week Oshkosh
event, the control tower is officially the busiest in the world. AirVenture attracts aviators, enthusiasts, and vendors
from all across the globe. It is undeniably one of America's most stellar and largest international good-will-building
events, but the Government is nixing it, just as it did with the nation's military aerial demonstration teams. When
is the last time anyone high up in this administration has praised America's heritage, accomplishments and events
rather than trying to fundamentally change us? You know what, though? They're getting away with it because there's
not enough of an outcry to stop them. Hang on, it's going to be a rough ride to the bottom.
Paranoia Article & Plans
visitor Ernie S. wrote to say that the
Miss Paranoia that he built back
in the 1970s has been converted to electric power, and that he would like to see the
article and, in particular, the plans in order to see where the center of gravity is supposed to be. Scale quarter
midget racers with their thin wings and short-coupled fuselages can be sensitive to CG; getting it right can make
the difference between just one short flight and many years of enjoyment. The AMA Plans Service no longer sells plans
for the Miss Paranoia, probably because it uses a fiberglass fuselage and foam wings, so there's not much chance anyone
will be building one from scratch.
Model Progress April 1962 Model Aviation
a junk dealer's daughter, but she's given the air to Lord Rennell's heir. Explained sultry, blonde Nina Hobbs, 21...'He
didn't pay me enough attention. He was much more interested in model airplanes.'" That line was in a 1962 edition
of American Modeler magazine. I'm guessing such a situation is not uncommon even today, or at least a lot
of wives give it serious consideration. There are a few other interesting items, and plans for the
Spearhead swept-wing free flight model.
Lorraine Grandmother Clock Now Complete and Running!
Lorraine Grandmother Clock is complete and has
been fully operational of of July 27, 2013! The only thing left to do is install the glass panels, but I'm waiting
to have them cut. Doing a complete mock-up of the mounting and fitting prior to finishing made for very quick work
installing all the clockworks components and panels. A very slight adjustment of the chime hammers was needed, but
that's it. I pulled the pendulum to the side and let go, and it's been ticking away ever since. Thus far it appears
to be keeping perfect time. The moon dial has been set for today's moon phase, so it will be interesting to watch
it progress over the next month. planning for the clock began in November of 2009 when I purchased the plans from
Klockit - about 3 years and 9 months. Melanie did a great job filming a short video on me explaining my method for
applying polyurethane without suffering...
Memphis Belle B-17 at Erie International Airport
July 21, 2013, Melanie and I toured the inside of the "Memphis Belle" that was used in filming the movie of the same
name. North Coast Air, based at Erie International Airport, hosted the event. This particular B-17 Flying Fortress
is not the original Memphis Belle, but is a version that was produced
in 1945, near the end of World War II. It is being leased by the Liberty Foundation for country-wide public
tours while the ill-fated Liberty Belle is being restored. Pics and a short video tour of the inside are posted.
visitor Iram O. wrote to ask that this article and plans for the "Big
Flapper" be scanned and posted. It appeared in the February 1972 edition of American Aircraft Modeler. With a
70" wingspan, it was considered a rather large plane in the day. Big Flapper was designed for lazy Sunday flying.
The original used a home-brew engine (big and heavy per the author) and sported reeds for control actuation. 'Reeds,'
for the uninitiated, were receivers that used 'resonant reeds' - a type of electromechanical oscillatory device -
to decode channel function. They acted like narrowband tuned circuits (decoders) for responding to discrete commands
from the transmitter. Think of each reed as one of the fingers on the comb of a music box mechanism that is resonant
at a specific frequency, only instead of emitting a tone, it vibrates in response to the unique frequency for which
it is tuned. When stimulated by the detected AM signal from the transmitter, it would close a switch for a particular
command, thereby signaling a servo or escapement to move the airplane's control surface.
is the official press release from AHS International, the world's premier professional vertical flight technical society,
"AeroVelo Team Wins AHS International's 33-Year-Old
Igor I. Sikorsky Human Powered
Helicopter Competition." AeroVelo's Dr. Todd Reichert piloted and pedaled the Atlas on the flight inside The Soccer
Centre in Vaughan, Ontario, that netted the team the long-standing $250,000 prize. "This incredible flight was 64.11
seconds in duration (World Record for "Duration on Hover"), reached a 3.3 m (11 ft) peak altitude,
and drifted a maximum of 9.8 m (32 ft). The Atlas as flown on June 13th behaved very differently from the
aircraft we first flew some 9 months ago...
Ryan ST-3 | Army PT-21 | PT-22 Detailed Drawings
set of very detailed drawings of the
Ryan ST-3, aka Army PT-21, aka
Army PT-22, monoplane appeared in the July 1962 edition of American Modeler. I cannot make out the signature
to give credit to the fine work. The artist included a lot of information that scale modelers in particular would
be interested in such as cockpit materials, instruments, wheel and propeller sizes, etc. It also has a detailed drawing
of the main landing gear oleo strut. Tables of the various commercial and military designations are included as well
in the set of three drawings.
Ford Trimotor Flight at Erie International Airport
July 3, 2013, the EAA AirVenture Museum flew a Ford Trimotor(aka "Tin Goose") into Erie International Airport, and offered rides for $75 per seat.
Normally, rides in vintage aircraft cost much more than $75, so Melanie and I jumped at the chance. We got about a
16-minute ride out to Presque Isle and around Presque Isle Bay. The experience of flying in an aircraft with three
radial engines was definitely worth the investment, especially since it was a cool day, winds were light, and the
visibility was unlimited with a little haze. Even with finely balanced propellers and 9-cylinder radial engines, the
vibration level was very notable. Unless you are an airplane lover who responds to such stimulation the way a newborn
baby responds to its mother's heartbeat, I can understand how hours-long flights might have been a bit wearisome...
X-47B Drone Lands on Aircraft Carrier USS George H.W. Bush
we witnessed the capstone moment for the Navy UCAS program as the team flawlessly performed integrated carrier operations
aboard USS George H.W. Bush with the X-47B
aircraft," said Capt. Jaime Engdahl, Navy UCAS Program Manager. "Our precision landing performance, advanced autonomous
flight controls and digital carrier air traffic control environment are a testament to the innovation and technical
excellence of the Navy and Northrop Grumman team."
Me with My Estes T-Shirt c1971
not one to post pictures of myself, or to even allow my picture to be taken for that matter, but I ran across this
one of me taken in 1971. If you click the thumbnail and look at the larger image, you'll see the "Estes Model Rocketeer"
decal that I ironed onto a T-shirt.
receivers are absolutely essential in
work. The need has driven major advances in the state of the art of cryogenically cooled front ends with noise temperatures
near absolute zero. Antenna technology has also benefitted from radio astronomy due to the need for precision steering
and narrow beam widths. Phased arrays for interstellar targets requires that element spacing being large enough to
require separate antennas as the elements, which creates a very large effective aperture, hence greater angular resolution.
Networks located continents apart are synchronized with the use of atomic clocks to allow signal time of arrival and
therefore phase to be accurately measured. This story gives some of the early efforts.
"Mr. Speed" Clayton Folkerts
you are a fan of airplane racing, then you are likely familiar with
an early speed demon of the air. Starting in the early 1920s with a 27-hp engine and a homebrew airframe and hand-carved
propeller, Clayton and his brothers made a name for themselves in the history books. When you have a
Wikipedia page about you and it's not
because of an infamous crime you committed, you've done something noteworthy ;-) This story from a 1963 edition of
Americana Modeler is chock full of photos and an extensive textual treatise on the Folkerts' accomplishments.
Tech Talk Rogallo Wing & More
people probably think of the familiar triangular
Rogallo Wing as a platform for hang
gliders, but its original intention was as a recovery system for manned space vehicles returning from orbit. In fact,
Francis M. Rogallo won a $35,000 prize from NASA in 1963 for the invention. It had been seriously considered for the
Gemini rocket program. Parachutes won out in the end, and were the primary form of recovery for the entire manned
space program up until the Space Shuttle fleet was commissioned. In an utterly sickening turn of fate and irony, America's
astronauts now hitch rides on Communist Russia and China spacecraft which return to Earth on parachutes. NASA's urgent
mission now is, according to its administrator (Charles Bolden), is to establish an outreach
to a foreign religious group.
Sketchbook - Hints & Kinks
Sketchbook was scanned from the October 1962
American Modeler, page 42. Most building tips are timeless. Even in this era of ready-to-fly (RTF), almost-ready-to-fly
(ARF), bind-and-fly (BAF), etc., there are still many modelers who build their own aircraft. Nearly all top tier competition
fliers build their own models, as do aficionados of vintage (aka old-timer) models. Some guys just would rather build
than buy a pre-build airplane, whether from a kit or from plans.
RealFlight Flight Simulator
included a free upgrade to R/C Flight Simulator version 6.5 so you will be getting the latest and greatest version.
The license has been released for transfer by RealFlight. It includes the airplane Megapack and the Interlink Mode
2 transmitter/controller (new one with the reset button). Only $90 + shipping
Schweizer SGS 2-33a Short Kit for Sale
is a short kit of the Schweizer SGS 2-33a with
a 76.5” wingspan. It is a scale version of the sailplane used for decades by the U.S. Air
academy for training cadets.
price is now $139 + $12 shipping. Only $90 (NIB) + shipping
Sig Citabria Kit for Sale
Sig Citabria kit is likely the best example you will find
anywhere because I had them replace all of the balsa parts that were of inferior quality. 69" wingspan. It is completely
unbuilt. Only $90 (NIB) + shipping - SOLD
profile on the plans looks like Mini Mono
designer Ralph Pearson fashioned it after the F-86 Sabre, but that's mainly because the Pee Wee .020 engine is not
shown. This 1970 vintage 2-channel R/C model was a marvel in compactness for its day. An Ace superhet pulse radio
did the guidance for an all-up flying weight of only 9.5 ounces for a 21" wingspan low wing airplane. Supposedly it
would bore holes in the sky with impressive aerobatics (for 1970). Full-size plans were printed on four pages along
with the construction article.
AMA's Delta Dart program has been around a long time, and is still its primary tool for introducing young kids to
the model aviation hobby. The Delta Dart's easily and quickly built, strong, forgiving frame and simple dry tissue
covering makes for almost guaranteed success with all newcomers... and they're cheap to boot. This
Thermal Dart is a step up really
only in size with not not too much added complexity. Its 24" wingspan, versus the Delta Dart's 12" wingspan, provides
for longer flights and make it easier to see. Frank Ehling designed both the original Delta Dart and the Thermal Dart.
Warlord FAI Pattern Ship
and Rockets website visitor Peter I. wrote to ask for the article on Jim Wilmot's
Warlord to be scanned and posted. The
model, which appeared in the October 1973 edition of American Aircraft Modeler (predecessor to Model Aviation) was
designed specifically to compete in FAI events. It features a molded fiberglass fuselage and built-up wing and control
surfaces. The stabilizer is of the all-flying variety (aka stabilator). A SuperTigre 60 Bluehead engine was used in