Boeing 707

For many airlines the 707 was the first jet airliner in service replacing older propliners. A total of 878 commercial 707s have been built but there was also a large number of aircraft produced for military use. Originally equipped with JT3B-engines some military variants have been re-engined with the more advanced CFM56.

For the modelplane fiberglass nacelles are available either for the JT3B or the wider CFM56 engine. The 707 has a large wing area giving the model a low wing loading. The outboard engines are far away from the fuselage so the pilot needs a lot of experience in case of engine failure.

Powerplant:    Glow:                4 x  6.5 cc  (.40 cu.in.)  glow engines

                           Turbine:           2 x  45 N  (10 lbs.) 

                                                      4 x  23 N  (5 lbs.) 

                            Ducted Fan:  4 x 70 mm (2.8’’)

4 x 105 mm  (4.1’’)   (some military variants only)

Specifications:

Fiberglass parts : Norbert Rauch

Span Length Wing Area Weight

Foam cores: ---

B707-120B 2.49 m (98’’) 2.75 m (108’’) 91.5 dm² (1418 sq.in.) 11 kg (24 lbs.)

B707-138B 2.49 m (98’’) 2.56 m (101’’) 91.5 dm² (1418 sq.in.) 10.5 kg (23 lbs.) Retracts: ---

B707-320B 2.78 m (109’’) 2.91 m (115’’) 110.7 dm² (1716 sq.in.) 12.5 kg (28 lbs.)

Basic Instructions:

Videos: (1)

Build Log: (1) (2) (3) (4) (5)

Pics:

(Norbert Rauch)

(Dieter Döring)

(Dieter Döring)

(Josef Bader)

(Norbert Rauch)

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