The Praga E.45 of 1934 was a single seat biplane fighter fitted with a 600 hp Rolls-Royce Kestrel VI or Hispano-Suiza 12Ybrs engine, and reported capable of 250 mph).
CKD-Praga E-45
Biplane
CKD-Praga E-44 / BH-44
The E.44 (or BH.44) single seat biplane fighter of 1931 was powered by a 550 hp Praga ESV engine and was fitted with two forward firing machine guns. The BH designation denoted a design by Benes and hahn, formerly with Avia.
CKD-Praga E-41 / BH-41
The E.41 (or BH.41) two seat advanced trainer of 1931 was an improved and slightly larger version of the E.39, and was powered by a 300 hp Hispano-Suiza engine.
CKD-Praga E-39 / BH-39
In several cases the code name of BH-39 after her designers Benes and Hajn is used for this type.
The prototype (designated BH.39NZ) first flew in 1931 with a 120 hp Walter NZ nine-cylinder radial engine. The 1936 next 8 built used 140 hp Walter Gemma radials (designated BH.39G). After this the 160 hp Armstrong Siddeley Genet Major was fitted (designated BH.39AG of 1937).
Praga E-39.21, the 21st production one, was powered by a Walter Gamma engine.
A total of 149 aircraft appears to have been built with 125 used by the Luftwaffe as primary trainers during WW2. No mention of cross bracing while later models had ‘N’ shape interplane struts, cross-braced layout, while the rest on the paint guides had ‘N’ shaped struts.
BH.39NZ
Two seat primary trainer
Engine: 120 hp Walter NZ
BH.39G
Engine: 150 hp Walter Gemma
BH.39AG
Engine: 150 hp Armstrong Siddeley Genet Major 1A
BH.39RS
Span: 10.00m
Length: 7.00m
Height: 2.57m
CKD-Praga E-36 / BH-36
The E.36 (or BH.36) was a two seat general purpose military biplane powered by a 600 hp Hispano-Suiza 12Nbr engine. Armament was two forward firing machine guns, and another in the rear position, and can carry 800 kg of bombs.
Circa Reproductions ONW / Beamcraft
The ONW/ Beamcraft I is a version of a design built in the 1960s. It uses commercial window frame “Beams” for the body, and simple 1 inch tubes for the tail. The wings are a simple ladder structure with strut bracing. It can be built in High wing, Mid wing or Low wing configuration, and nose or tail wheel. It is intended for engines ranging from 16 Horse Kohler or Briggs to the 447 rotax and will fly delightfully in the US UL range.
The TNW/ Beamcraft II is a biplane version of the Beam Craft: Same structure, same wheel arrangements, same rough weights and performance. You can have 2 ailerons or 4.
Beamcraft I
Wingspan: 28 ft
Wing Area: 126.5 sq. ft.
Length: 15 ft 66 in
Height: (various)
Weight: 250 lbs
Fuel Tank: 5 US gal.
Stall: 25 mph
Cruise: 50-65 mph
Top Speed: 65 mph
Never Exceed: 75 mph
Gross wt: 500 lbs
G Factor: 5.7+ 2.8-
Beamcraft II
Wingspan: 24 ft
Wing Area: 144 sq. ft.
Circa Reproductions Sopwith Tabloid / Baby
This is a 2 plane set of plans. You can combine the desireable aspects of both. The Tabloid was produced first as a Bennet racer, and did very well. It was then adopted by the military. With all of the accessories added, it needed a bigger engine, a change of cowl, and rudder to become the Sopwith Baby. Both aircraft were 2 place side by side, but in 7/8 scale they are perfect for the average 200 pound pilot of today. The Sopwith’s construction techniques are similar to the Nieuports. The fuselage can be built in a couple of weekends, and wing ribs will only take a couple of hours to bend.
Best Performance (Baby) Rotax 582 or Hirth with 72 inch or larger prop. The Tabloid can be VW powered due to the smaller cowl, but will need a 2100 CC Or larger engine.
NOTE: The skids are necessary with the rearward placed wheels. The wheels can be positioned as on the baby without tip over skids.
Sopwith Tabloid and Baby
Wingspan: 21 ft 75 in
Wing Area: 195 sq. ft.
Length: 19 ft 5 in
Height: 7 ft 43 in
Weight: 325 lbs
Fuel Tank: 12 – 15 US gal.
Stall: 35 mph
Cruise: 75 mph
Top Speed: 90 mph
Never Exceed: 110 mph
Gross wt: 650 lbs
G Factor: 5.7+ 2.8-
Circa Reproductions Nieuport 24
Circa Reproductions Nieuport 17
Plans from Canadian Graham Lee who had re drawn the original drawings down to the 7/8 scale. The Nieuport 17 is all aluminium construction, covered with a polysynthetic fabric and painted with aircraft finishes. Powered by an 1835cc VW engine that has been fitted with a starter motor, it cruises at a leisurely 65 70 mph.
A CIRCA Reproduction Nieuport 11/17 features 6061 tube, pop rivet construction. Average cost in 2008 was $6,000.00.
Engine: 1835cc VW 60HP
Span: 21’5″
Length: 16’5″
Empty Weight: 300 LBS
Useful Load: 300 LBS
Wing Area: 114 SQ. FT.
Seats: 1
Take Off Distance: 250 FT
Stall: 33 MPH
Landing Speed: very slow
Cruise: 80 MPH
Rate Of Climb: 650 FPM
Engine: VW1600.
Wing span: 22 ft.
Length: 16 ft.
Height: 6 ft 6 in.
Weight: 362 lb.
Max speed: 70 mph.
Endurance: 4 hr.
Circa Reproductions Nieuport 12
The 87% scale replica of a Nieuport 12 was designed and prototyped in 1989, at Oshkosh ‘90, it took 3rd place in the light plane category.
The 12 is constructed of the same materials as the Nieuport 11 with the exception of the main wing spars which are formed sheet. The 12 is a 2 place with a Rotax 582 recommended. Construction is fabric covered tube structure, pull riveted gussets and AN bolts. Plans are oriented to the experienced builder with little instruction needed. Videos are available of Building procedures 4 hrs as well as a flight preview video (2 hours)
Engine: Rotec R2800 or Rotax 582, 65 hp
HP range: 65-85.
Reduction: 3.47:1
Propeller (flight): 84″ diameter
Span Main Wing: 26.5 ft
Span Sub Wing: 21.2 ft
Chord Main Wing: 4.85 ft
Chord Sub Wing: 31.5
Wing Area: 189 sq. ft.
Span Stabilizer: 9 ft
Length cowl to tail: 21.5 ft
Height: 7.5 ft
Weight empty: 575 bs
Fuel Capacity: 12 Gal US.
Gross Weight: 1070 lbs
Stall Speed: 33 MPH
Cruise: 75 MPH
Top Speed: 94 MPH
Never Exceed (Vne): 112 MPH
Take off run: 300 ft
Landing Roll: 300 ft
ROC: 550 fpm.
Range: 180 sm.
G Factor (@ 550 lbs): +5.7/ – 2.8
Tubes: 6061-T6
Gussets / fittings: 2024 – T3
Build time: 1400 hrs
Seats: 2.
Landing gear: tail wheel.
Engine: Rotax 582, 64 hp
Wing span: 8 m
Wing area: 17.56 sq.m
MAUW: 475 kg
Empty weight: 255 kg
Fuel capacity: 50 lt
Max speed: 150 kph
Cruise speed: 115 kph
Minimum speed: 53 kph
Climb rate: 2.2 m/s
Seats: 2
Plan price (1998): $200
All Aero 