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 dm˛ (1418 sq.in.) 11 kg (24 lbs.)
B707-138B 2.49
m (98’’) 2.56 m
(101’’) 91.5 dm˛ (1418 sq.in.) 10.5 kg
(23 lbs.) Retracts: Hawe Modellbau
B707-320B
2.78 m (109’’) 2.91 m
(115’’) 110.7 dm˛ (1716 sq.in.) 12.5 kg (28 lbs.)
Videos:
(1)
Pics:
(Norbert Rauch)
(Dieter Döring)
(Dieter Döring)
(Josef Bader)