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          • JT3D engine and B707 system information needed
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Instruments

N1 & N2 indicators

Posted on November 2, 2019November 5, 2019 by commander
02
Nov

N1 and N2 indicator are basically exactly the same in terms of construction. The major problem here is the vernier dial and the speed at which it is rotating during engine acceleration. Here is an engine spool up table. It shows that the engine can spool up above 50% at 10% within ~0,2 seconds. After […]

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Posted in Instruments
Project news

Fantastic Find in Belgium!

Posted on September 24, 2019September 24, 2019 by commander
24
Sep

Fantastic find in Belgium! A HUGE number of cockpit parts of Lufthansa’s D-ABUD my father flew with Lufthansa in the 70s. Many thanks for Guy van Herbruggen for this wonderful donation. Most of the parts will be cleaned only and left as is. Note the stickers are original LH. All pilot and F/E panels come […]

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Posted in Project news
Project news

Boeing 707 cockpit arrived!!

Posted on August 26, 2019 by commander
26
Aug

Today I took delivery of the Boeing 707 cockpit I have been dreaming of for many many years. This former Saudi Arabian Airlines 707 (HZ-ACI) will become Lufthansa’s B707 D-ABUD/UF (N88ZL) with all panels, most gauges and other parts coming from these two aircraft. My father did his entire 707 training on D-ABUD making it […]

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Posted in Project news
Instruments, Project news

Lufthansa RMIs discovered

Posted on August 10, 2019August 11, 2019 by commander
10
Aug

After a long search I was able to locate 3 original Lufthansa Bendix Radio Magnetic Indicators used on Boeing 707s! Still missing one but will definitely find that one too.  

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Posted in Instruments, Project news
Instruments

IVSI

Posted on May 27, 2019August 11, 2019 by commander
27
May

Vertical Speed Indicator – plain an simple. Original drums and gears removed and replaced with a NEMA stepper motor and a IR sensor for initialization. NEMA is running at 1/16 steps for super smooth and quick needle movements. Stay tuned for upcoming videos of the gauge conversion.  

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Posted in Instruments  |  Tagged IVSI, Vertical Speed
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Photo Gallery
Rudder pressure indicator
Rudder pressure indicator
IVSI
IVSI
Installing the assembly in the gauge housing proved to be difficult. Gluing the screw to the screw driver with hot glue did the trick,
Installing the assembly in the gauge housing proved to be difficult. Gluing the screw to the screw driver with hot glue did the trick,
IMG 20190129 101428
IMG 20190129 101428
photo 2020-12-09 19-31-12
photo 2020-12-09 19-31-12
photo 2020-12-09 19-31-13
photo 2020-12-09 19-31-13
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About this project

The 707jet Website is not affiliated or endorsed by the Boeing Company or Lufthansa.
Author and developer of 707jet.com: Nils Alegren

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Copyright 2025 © Nils Alegren
  • PROJECT & BLOG
    • Project Blog
    • How it all started
    • About me
    • Lufthansa D-ABOD MSN 17720
    • 707 parts WANTED
    • Donate & Help
  • Resource
    • 707 Manuals
    • Memorabilia for sale
    • Shop & Downloads
  • Technical Info
    • Interactive Cockpit
    • System Summaries
      • System Descriptions
        • Electrical Power
        • Pneumatic System
        • Hydraulic Power
        • Fuel System
        • Auotpilot
        • Flight Director System
        • Altitude Alert System
        • Antiskid System
        • Attitude Warning
        • Research
          • JT3D engine and B707 system information needed
  • What remains
    • Pilot Stories
    • Global map of 707s
    • Lufthansa 707 Fleet
  • Contact
  • Parts for sale
  • Support
  • Buy now
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