Electronic Bugwiper system – Jumbo Putzi


Microprocessor-controlled and self-learning Bug-wiper system with integrated WiFi.

Available on back-order

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The jumbo putzi bug wiper drive impresses with its small, flexible design and automatic and reliable operation.

The very easy operation (one push button per side) creates hardly any distraction in flight, the flying speed during the cleaning process can be varied up to 200 Km/h, the drive has been tested up to well over 200 Km/h.

Due to the flexible, 2-part design, installation in the aircraft is possible even in confined spaces. The symmetrical design allows a right/left conversion of the motor units according to the available installation space. The control unit is very small and mounted on a drive unit. It is microprocessor-controlled and designed as a self-learning system, e.g. the fettler learns over time to reduce speed when approaching the hull. Slack rope monitoring, if the fettler gets stuck while running out, is also integrated.

Integrated WiFi & website
Since delivery in autumn 2022, the control unit has WLAN with an integrated website. The cleaning cycles of the two motors can be viewed here, as well as the device data such as serial number and software version. Updating the software is done via the website. The span changeover for aircraft with 2 possible spans, scheduled for mid-2023, will also be possible via the website.

The entire power supply is routed through a toggle switch with an integrated electronic fuse, which allows the complete unit to be shut down. The electronic fuse trips at 5A and then switches back on automatically.

The small operating and display unit is placed behind the panel, the pushbuttons then look out at the front. This only requires two 8mm holes for the pushbuttons and a small hole for the mounting screw. Alternatively, the control unit can simply be placed in the panel area. The cable connection to the control unit is made by a prefabricated, plug-in cable.

The operating status of the respectively activated unit is signaled by an LED integrated in the pushbutton. In daily operation, only a short keystroke is required to start the drive. The rest of the operation is controlled by the microprocessor control, manual intervention is not necessary, but of course possible.

The principle has been proven for more than 15 years and about 100 delivered units.  Compared to its predecessor, the Jumbo Putzi represents a downsizing of the electronics and a production-optimized design of the mechanical components, some of which are made from state-of-the-art 3D printing.

Video: bug-wiper operation


You can add a second control unit to the system for the rear seat, which enables the operation of the bug wiper from this seat. The secondary control unit will also display the signaling, in parallel to the mother unit in the front panel.

Technical data:

  • Flying speed during cleaning up to 200 Km/h
  • Power supply: 12 VDC
  • Stand-by current consumption: 20mA @ 12VDC
  • Operating current consumption: approx. 2A, depending on cleaning wing and flying speed
  • Fully automatic sequence control incl. automatic shutdown when reaching the end position on the fuselage
  • Span adjustment via rope length adjustment

Dimensions drive:

  • Length: 120mm
  • Width: 100mm
  • Height: 40mm

Dimensions control unit:

  • Width: 35mm
  • Height: approx. 14mm plus plug connection to the rear
  • Depth: 15mm

Whats in the box:

  • 2 x Jumbo Putzi drive units, individually mountable
  • 1 x Control unit, pre-mounted on one drive unit
  • 1 x Operating and display unit with connecting cable
  • 2 x Pull ropes, 11m each (to be shortened to the respective span length during assembly)
  • 2 x Plastic side-wall nipple
  • 2 x Bowden cable sheath, each 60cm, extra smooth running
  • 5 x Cable fasteners, self-adhesive
  • 1 x Main switch in toggle form with integrated fuse
  • 1 x Threading loop for pulling a new cable onto the drive drum
  • 1 x Operating and connection instructions

Scope of delivery for the two-seater option:

  • 1 x Operating and display unit
  • 1 x Connecting cable from the front operating and display unit to the rear unit
  • 1 x Piece plug-in adapter for looping in the rear unit

Download: Jumbo Putzi manual

Please take in mind:
We recommend regular inspection for chafing points and preventive replacement every 2 years for the pull cable.