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Lockheed C-130 Hercules Control Line Model
June 1956 Young Men • Hobbies • Aviation • Careers

June 1956 Young Men
• Hobbies • Aviation • Careers

June 1956 Young Men Cover     [Table of Contents]

These pages from vintage modeling magazines like American Aircraft Modeler, American Modeler, Air Trails, Flying Aces, Flying Models, Model Airplane News, & Young Men captured the era. I will be glad to scan articles for you. All copyrights hereby acknowledged.

The Lockheed C-130 has long been my favorite post-World War II four-engine airplane, and I have vowed to someday build a control line model of it. This construction article from a 1956 issue of Young Men magazine might provide just the impetus needed to start the process since it includes highly detailed plans and assembly drawings. Lockheed toolmaker Henry 'Hank' Edwards designed and built the original model using first two .19 engines and then converting to four .09 engines. My model, if it ever becomes a reality, will use four brushless electric motors. Unfortunately, because of the way the pages with the plans and assembly drawing were bound in the magazine, there is a missing section in the middle of both. I left what seems to be the appropriate spacing between the two halves, so if you print out the plans full size, you should be able to sketch in the missing details well enough to build the model.

Many thanks to Bob Balsie for sending me scanned pages to process and post!

This Spectacular Lockheed "Hercules" Model Performs on One Engine!

By Henry G. Edwards with Paul Del Gatto

Take your choice: two .19-size powerplants or four .09's; but either way you'll have the most publicized model in your town!

Lockheed C-130 Hercules Control Line Model, June 1956 Young Men - Airplanes and RocketsHank is Lockheed tool inspector; this is his 1st flying model

Being a Lockheed employee I was naturally quite close to this particular aircraft; the more I saw of the Hercules C-130 the more convinced I was that I wanted it to be my first multi-engine project. Its gargantuan proportions impressed me. But it went deeper than that, for incorporated into the design were many features which justified its, being called the "freighter of the future." One of its unusual features is the low-slung fuselage incorporating a floor that. is the same height as truck beds. Upswept tail arrangement is utilized to accommodate rear-end loading.

Flight tests have indicated that the speed of Hercules will surpass that of our present luxury airliners; the C-130 can land on an 800 ft. runway. Considering that fully loaded the Hercules weighs in at about 54 tons (of which about 20 tons are cargo) arid it has a 132 ft. wingspan, "impressive" is the right word.

There's a total of 15,000 horsepower behind the 4 turboprops. Unusual is the use of deeper camber for the bottom of the stabilizer than for the top. Maybe the engineers who thought up this feature were old "Pacer" addicts.

Single-engine performance is eye-raiser - Airplanes and Rockets

Single-engine performance is eye-raiser!

Crowd pops up when C·130 appears - Airplanes and Rockets

Crowd pops up when C·130 appears.

Hercules model performs on single .19 - Airplanes and Rockets

Hercules model performs on single .19 in front of Lockheed's Marietta, Georgia, plant.

Four Allison T-56 turbine engines in slim nacelles power "freighter of the future." - Airplanes and Rockets

Four Allison T-56 turbine engines in slim nacelles power "freighter of the future."

Stable flight is majestic thing indeed - Airplanes and Rockets

Stable flight is majestic thing indeed.

Photos from Lockheed's "Southern Star." - Airplanes and Rockets

Photos from Lockheed's "Southern Star."

(Model bugs new to the hobby may not have heard about Sal Taibi's free-flight "Pacer" design which. incorporated an inverted stab and was one of the hottest designs of the early '40's. It's still a strong favorite with many old-timers and it still brings home the bacon at contests.)

But getting back to "Hercules" and control-line models in general: Nothing can hold a candle to a multi-engine model, particularly if it is a scale replica.

Certainly you can't build this multi­engine model overnight or even over a weekend. What we prefer is the kind of project that can really be called model building. Ask anybody who has tried multi-engine designs, when it comes to flying there's nothing that can challenge the roar of two or more engines in synchronization; or that breathtaking moment when the model is released and it accelerates for a take-off.

If this is your first multi-engine design we suggest you install two engines operating on the inboard nacelles; leave the engines off on the outboard nacelles. Two K. & B. 19's proved more than ample power for us and the model even performed on one!

We have gained sufficient confidence to convert over to four .09's and performance has been to everyone's satisfaction. What has improved still more is our ground operations prior to each flight. We've gotten so we look like centipedes-on-the-double.

If you're an old hand at multi-engines, you might decide on the four .09's to begin with.

Lockheed C-130 Detailed Assembly Drawing by Douglas Rolfe - Airplanes and Rockets

Lockheed C-130 Detailed Assembly Drawing by Douglas Rolfe

Construction

With this project it is advisable to begin construction with the wings and tail surfaces, for then things will be easier in the final assembly. The wing, stab and fin ribs are cut from hard sheet balsa. In all probability most of the wood lengths you'll be using for the wing loading edge and spar will be 3 feet, and so will require splicing. Wing spar can be spliced in the center since plywood stiffeners are used, However, for the wing leading edge, splicing is recommended as indicated at the outboard engine nacelles.

Do not shape the leading edge of the wing at the center section until final assembly.

Before planking the wing install Jim Walker pressure tanks; two or four tanks will be required depending of course on whether you plan to use two or four en­gines. Mount all the tanks with the fuel outlet facing the outside of. the flight circle.

Plywood control-line wing guide should be recessed into the wing structure and cemented securely before planking.

Frame structure of the wing and tail surfaces are covered with 1/16" medium sheet balsa. Elevators are shaped from 1/2" soft sheet balsa and linked together by a Veco-type horn. Rudder, offset 1/2" off centerline, is shaped from 5/8" soft sheet balsa. The dorsal can be built up from laminated balsa such as that required for the stab leading edge.

Nacelle construction is quite simple, consisting primarily of an upper and lower shell with hardwood engine mounts shaped to the nacelle contour and cemented between them. The desired cross-section and accurate fitting to the airfoil curvature may be a little ticklish - but "Plastic Wood" around the exposed area will give that professional touch.

Get the fuselage started by cutting out all formers, some of which are 1/8" plywood and the remainder 1/8" very hard sheet balsa. Lay down the basic crutch and cement to it several of the key top formers so that the top keel can be added before removing from plan. After the crutch has been removed from the plan fill in these areas with sheet balsa where the landing gear assemblies are to be installed.

Bend nose gear to shape; it is bound with soft copper wire to 1/2" square hardwood mounts and spot soldered, Then cover the entire unit with heavy silk and cement it thoroughly.

Main gear is bent to shape and belted to a 1/8" plywood mount with the aid of metal bands. Mount is full width of fuselage except for planking; it fits between formers 7 and 9. When entire unit is completed cement it to the crutch and the sheet balsa bracing.

At this point install bellcrank assembly with exception of pushrod. When completed, cement all these fuselage bulkheads in place that are keyed to the crutch assembly. Add the bottom keel and the last two formers.

We would recommend planking the fuselage with 3/32" x 1/2" medium balsa strips except around sharply curved sections of the fuselage where you can avoid steam-bending the wood by using a softer grade. Begin planking along the crutch until the rear formers are sufficiently rigid to hold the stabilizer.

The tail cone is blanked out from soft sheet balsa and shaped to blend in with former 15 and the stab and elevator assembly. When completed, cement the tail cone to former 15.

Additional construction details will be found on the full-size plans.

 Full-size plans for the C-130 Hercules - Airplanes and Rockets

Full-size plans for the C-130 Hercules (by Paul Del Gatto) are on Group Plan #656 from Hobby Helpers, 770 Hunts Point Ave., New York 59, N.Y. (50c).

 

 

Posted April 23, 2016

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Even during the busiest times of my life I have endeavored to maintain some form of model building activity. This site has been created to help me chronicle my journey through a lifelong involvement in model aviation, which all began in Mayo, MD. There is a lot of good information and there are lot of pictures throughout the website that you will probably find useful, and might even bring back some old memories from your own days of yore. The website began life around 1996 as an EarthLink screen name of ModelAirplanes, and quickly grew to where more server space ...

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