Efficient ice protection systems – Timing is everything

**NEW PUBLICATION** Aircraft without ice protection systems will face severe issues when flying in icing conditions. To reduce the risk of losing the aircraft, the aircraft must either remain grounded when the risk of icing exists, or it must be equipped with an ice protection system. As of today, no mature ice protection system existsContinue reading “Efficient ice protection systems – Timing is everything”

Why we need a special icing severity index for unmanned aircraft

**NEW Publication** Icing severity indices are ameasure for the in-flight icing risk and are an important factor for path and mission planning. Small aircraft, such as unmanned aerial vehicles (UAV) and urban air mobility (UAM) vehicles, are particularly sensitive to icing and thus proper assessment of weather risks is critical. Icing severity is a metricContinue reading “Why we need a special icing severity index for unmanned aircraft”

Challenges for icing CFD and unmanned aircraft

**NEW PUBLICATION** Computational fluid dynamics (CFD) simulation methods are one of the most important design and development tools for aircraft – manned or unmanned. For the challenge of in-flight icing, special icing CFD codes have been developed such as FENSAP-ICE or LEWICE3D. These tools can simulate and predict the behavior of airfoils and aircraft in icingContinue reading “Challenges for icing CFD and unmanned aircraft”

1st UAV Icing Workshop announced

Announcing the 1st international workshop on icing of unmanned aircraft. The UAV icing workshop will be held in Trondheim (Norway) and online during November 29-30, 2022. The workshop will be hosted by the UAV Icing Lab at the Norwegian University of Science and Technology (NTNU). The objective of this workshop is to provide a platformContinue reading “1st UAV Icing Workshop announced”

Ice shedding detection and how it helps to operate UAVs in icing conditions

Written by Bogdan Løw-Hansen, PhD candidate. Today, harsh weather conditions and especially icing are a big problem for uncrewed aerial vehicles (UAVs). Several solutions exist, but many require substantial amounts of energy to operate them, which are not always available on smaller UAV platforms. To this end, the UAV Icing Lab at NTNU is currentlyContinue reading “Ice shedding detection and how it helps to operate UAVs in icing conditions”

Can ice fragments destroy a UAV propeller?

In one of our recent icing wind tunnel experiments, the NTNU UAV Icing Lab investigated if ice fragments are a hazard to UAV propellers. The resulting high-speed video footage shows the moment ice impacts the propeller blades. Here is a small preview of the footage. When an aircraft flies into special meteorological weather conditions, iceContinue reading “Can ice fragments destroy a UAV propeller?”

Cooperation with the German Aerospace Center (DLR)

The Norwegian University of Science and Technology (NTNU) has signed a collaboration agreement with the German Aerospace Center (DLR). The scope of the agreement is to conduct joint research in the field of icing on unmanned aerial systems (UAVs). The collaboration is going to be pivoting around the NTNU UAV Icing Lab the the DLRContinue reading “Cooperation with the German Aerospace Center (DLR)”

Are unmanned aircraft more sensitive to icing compared to manned aircraft?

**NEW Publication** A recent paper investigates the sensitivity of unmanned aircraft to icing in comparison to manned aircraft. Differences in airframe size and airspeed can lead to substantially different icing performance penalties. Think of a “normal” aircraft. Chances are that you are thinking of something that is officially called a “large transport aircraft” – aContinue reading “Are unmanned aircraft more sensitive to icing compared to manned aircraft?”

Icing wind tunnel experiments on UAV ice shedding

This summer, the UAV Icing Lab went on a joint campaign with UBIQ Aerospace at the icing wind tunnel facility of the Technical Research Centre of Finland (VTT). The main goal of the campaigns was to do experiments on ice protection systems for UAVs and to study the effects of icing on propellers. Among otherContinue reading “Icing wind tunnel experiments on UAV ice shedding”