Sunday, August 2, 2026

Bishop Hobbies

Wood & Plastic Models, Astrophotography

1/32 Sopwith Pup

Posted by Paul On July - 18 - 2020

7/18/2026 I've gotten back into biplanes! Right now I'm building the Wingnut Wings 1/32 Sopwith Pup. This is an amazing kit – like all Wingnut Wings kits. When I finish this, I will have six more waiting to be built.

The Sopwith Pup was one of the most successful and beloved British fighter aircraft of the First World War. Introduced in late 1916, it quickly earned a reputation for its exceptional maneuverability, light controls, and forgiving flying characteristics, making it a favorite among both experienced aces and newly trained pilots. Although lightly armed with a single synchronized .303 Vickers machine gun, the Pup's agility allowed it to outmaneuver many of its opponents in aerial combat. Powered by an 80-horsepower Le Rhône rotary engine, it could reach speeds of about 111 mph (179 km/h) and climb rapidly for its time. The Pup also served with distinction in the Royal Naval Air Service, where it became the first aircraft to successfully take off from a moving ship, demonstrating the beginnings of naval aviation. While eventually replaced by more powerful fighters suc

h as the Sopwith Camel, the Pup remains remembered as one of the finest-balanced aircraft of the war and an important milestone in the evolution of military aviation.

7/19/2026 Here are some photos of the cockpit. I used Gaspatch turnbuckles, ezline, Beadalon bead stringing wire (.01 in) for the control cables and Alclad II gloss klear kote for instrument guage glass. Wood color was enhanced with Tamiya clear orange and yellow.

7/20/2026 The fit between the fuselage and the lower wing is awful. I spent about an hour trimming to get the fit right.             

I added .5 mm brass wire to the attachment points between the control surfaces and the wings. This made for a more robust connection. My Arrowmax drill worked great to drill the holes. I used a very small 0.6 mm drill bit.

 

7/24/2026 Next I sprayed the lower surfaces with the linen color called out in the instructions. I used Tamiya paint and added Mr. Color Leveling Thinner. I found this to be very helpful and keeping paint application very smooh.

Here are some additional photos. Here you can see where I've masked off the ribs and sprayed with a lighter color to highlight the ribs. I have added streaked burnt umber oils in the first photo over the tan area to better replicate wood grain (I did this after the photo was taken so it doesn't show up here).

7/24/2026 Continued.   I've done some more painting – here is the latest…

7/27/2026 A small update…

7/28/26 I've finished the engine (wired it with EZline) and attached the tail feathers and the machine gun.

7/30/2026 I've hit upon a way to make the rigging look better as shown in the pictures below. I start with the wings painted and decaled. I then drill out the turnbuckle holes to clean any paint so a clean hole is left. Next I use some .25 mm wire I have (I have some .2 mm copper wire on order – that should work better), I run this through one eye of a Gaspatch metal turnbuckle type c and twist the wire to make a wire eyelet attachment. The wire is trimmed close then superglued into the turnbuckle hole in the wing. I will do this for both the upper and lower wing connections and rig them with ezline. That's the plan anyway. We'll see how it goes.

1/8 Clerget 9B Engine

Posted by Paul On June - 10 - 2020

Beginning in 1911, and until manufacturing rights were sold to Renault, Clerget, Blin, and Cie of Paris, France, built various types of airplane engines, but mainly air-cooled rotaries. During World War I, the company's effort was concentrated almost entirely on this type of engine. Gwynnes, Ltd., Hammersmith Iron Works, London, England, controlled the British manufacturing rights on Clerget engines.

The Clerget Type 9B was a highly successful engine and was used extensively during World War I. Among the French aircraft equipped with the Type 9B were the Nieuport 12 and 17, Nieuport Triplane, Pommier, Caudron, CSL, MS 30 and 35, and Spad. Numerous British aircraft were also powered by the Type 9B, among them the: Avro 504C/K/L and 531/A Spider; Bristol 10 M.1A and 11 M.1B; Cierva C.6C/D and C.8R Autogiro; and Sopwith Baby, Triplane, F.1 Camel, Scooter, Triplane, and LCT 1-1/2 Strutter.

Object Details

Date:  Circa World War I

Country of Origin:  France

Type:  PROPULSION-Reciprocating & Rotary

Manufacturer:  Automobiles Delaunay-Belleville. Panhard-Levassor

Designer:  Clerget, Blin and Cie

Physical Description:  

Type: Rotary, 9 cylinders, air-cooled
Power rating: 96.9 kw (130 hp) at 1,250 rpm
Displacement: 16.26 L (992.07 cu. in.)
Bore and Stroke: 120 mm (4.72 in.) x 160 mm (6.3 in.)
Weight: 173 kg (381 lb)

Dimensions:

Diameter 102.1 cm (40.2 in.), Length 110.5 cm (43.5 in.)

Materials:  Steel, Paint, Preservative coating, Aluminum

Smithsonian National Air and Space Museum

6/10/2025 Here are photos of my just finished Hasegawa 1/8 scale Clerget 9B rotary engine.  It was a lot of fun to build, went together easily and will look great next to my Hasegawa 1/16 Sophwith Camel. I haven't added any weathering to it – I may do that later.

Herre are some pics of the 1/8 Clerget 9B alongside the 1/16 Sopwith Camel:

 
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