Bautri Ratgeber
Study: Drone protection from construction props – nets without digging, even on asphalt
30.11.2025· Oliver Kümmel
Study: This article presents an idea. There is no field reference and no practical experience yet for using the Bautri System as a net carrier. Images and video are concept visualisations.
In conflict zones, roads and critical infrastructure are protected against FPV drones with nets – usually hung on timber posts dug into the ground. Simple and effective, but labour-intensive. And on asphalt, concrete or compacted ground, no post can be dug in.
The idea: instead of timber posts, standard construction props carry the nets – joined into stable masts with the Bautri System.
Video (47 s, German voice-over): set-up, net tensioning and drone capture – area protection and portal net tent. Concept visualisation.
At a glance
- Construction props are available worldwide in large numbers, inexpensive and very stable.
- No drilling, no foundation – stands on any load-bearing surface, including asphalt and concrete.
- Levelling slopes: each prop telescopes individually, the head plates stay level.
- Height: approx. 5.5 m to the top of the net in the example; with 4 m props, up to approx. 8 m is possible by calculation.
- Reusable: after use, the props are ordinary construction props again.
From tripod to net mast
The Bautri adapter joins three construction props to EN 1065 into a tripod. A fourth prop is mounted vertically on the head plate and bolted in place – and the mast is ready. Because each prop is extended individually, the system compensates for the slope of yards and parking areas. The surface remains undamaged.
Stability: ballast as required
If an impact or wind pulls on the net, the masts tend to tip inwards. For this, a weight can be hung from the central anchor point beneath the head plate – most simply a water barrel: transported empty, filled on site, emptied for dismantling. Acting centrally within the tripod, it stabilises in all directions. Ballast quantity, net and wind loads must be designed case by case.
Variant 1: area protection
Four masts stand at the corners of the area to be protected, for example over containers, materials or equipment. Edge ropes connect the mast tops, a roof net is spread above, and nets hang down to the ground on all sides. For access, one side can be opened like a curtain.
Variant 2: portal net tent for vehicles and entrances
Two masts face each other as a portal. A ridge rope runs between their tops; the net falls like a tent to the ground on all sides and is weighted down with sandbags. This allows vehicles, entrances and access routes to be covered quickly.
Assessment
Nets are one protective layer among several, alongside early detection and – where permitted – electronic countermeasures. The Bautri System has been tested in the 4 m configuration without a fourth prop (DEKRA, 25 kN tension/compression). The net-carrier configuration has not been tested – it is a study that we would like to trial together with users in a pilot project.
Frequently asked questions
Why construction props instead of timber posts?
Construction props are available worldwide, quick to set up and need no foundation. This means net protection also works where digging is not possible or not permitted.
How high can the net be hung?
In the example shown, the top of the net is at approx. 5.5 m. With 4 m props and a fourth prop mounted on top, up to approx. 8 m is possible by calculation.
What keeps the masts stable in wind or on impact?
Ballast at the central anchor point as required, for example a filled water barrel. The design is determined case by case.
Is the system tested for this use?
No. The DEKRA test covers the 4 m configuration without a fourth prop. Use as a net carrier is a study without a field reference.
Interested in a pilot project or have practical insights? Get in touch.