Exterior Dry Wash at Bern-Belp (LSZB)

What changes at Bern-Belp for exterior dry wash?

Bern sits at 1,675 feet elevation with a single 1,730-metre runway, which naturally limits traffic to business jets, turboprops and regional aircraft. The airport is not slot-coordinated, so scheduling a dry wash between legs is straightforward: we coordinate directly with Ground Services Bern at the General Aviation Center (Flugplatzstrasse 31, Belp, +41 31 960 21 31, frequency 131.410), the airport-operated handling team that manages all general-aviation and business-aviation movements.

Because customs and immigration are available during aerodrome operating hours, international flights clear at Bern without diversion, which makes the airport a practical base for recurring detailing programmes. The single-runway layout means ramp positions are easy to predict, and the absence of slot constraints means we can flex our arrival time if your inbound is running late. Elevation and Alpine weather—particularly in winter—mean cold-soaked wings and frost are routine considerations; a dry wash will not remove ice, but it will lift the grime that traps moisture and accelerates corrosion on brightwork and leading edges once the aircraft is back in a heated hangar.

How does a third-party detailing crew work with the handler at Bern?

Flughafen Bern AG runs the General Aviation Center and expects any third-party service provider to arrive with a valid airside pass or to be escorted by their ground-services staff. We notify the handler twenty-four hours before the scheduled wash, confirm the stand assignment and verify that GPU or APU will be available if we need cabin access for logbook sign-off. The handler will ask for proof of liability insurance and a brief scope of work—'exterior dry wash, no entry to avionics bays, no water runoff'—so their own ramp-safety officer knows what is happening on the apron.

Because Bern is a smaller field with a single handling agent, communication is direct and personal. If your aircraft is arriving late or departing early, the handler will typically call us rather than wait for an email chain. That informality works well for one-off washes, but it becomes even smoother when you establish a recurring schedule: the handler logs the detailing window in their system, allocates the same stand when possible and ensures we have the same escort each time, which speeds access and reduces the chance of miscommunication on a busy morning.

Why choose a dry wash instead of a traditional water wash at this airport?

Bern-Belp has no dedicated wash bay for business aviation, and organising a tow to an off-airport facility adds two to three hours to the turnaround and requires coordination with the single handling agent for tug availability. A dry wash happens on stand, uses no water and produces no runoff, so there is no environmental-permit question and no need to reposition the aircraft. For a chief pilot managing a tight schedule between Bern and onward legs into France or Germany, that simplicity is worth the trade-off in deep-cleaning power.

Rinseless products have improved markedly in the past five years. We use pH-neutral formulations approved by airframe OEMs that encapsulate dirt particles and lift them away with microfibre cloths, leaving a light hydrophobic film that helps repel road salt and de-icing fluid residue. The result is not quite as mirror-bright as a two-bucket wash with a pressure rinse, but it is more than adequate to remove the bug strikes, exhaust bloom and belly grime that accumulate over two to four weeks of regular flying. If the aircraft has been through a winter of Type I and Type IV fluid applications, we will recommend a full wet wash in spring; until then, a dry wash every three weeks keeps the paint clean and the brightwork free of corrosion.

How long does an exterior dry wash take at Bern, and when should we schedule it?

Duration depends on aircraft size and condition. A light jet in routine service—say, a Citation Latitude that has flown twice a week and been hangared between trips—will take three to four hours. A super-midsize or large-cabin jet that has been parked on the ramp through a week of rain and has visible exhaust staining on the nacelles and belly will take six to eight hours. We always inspect the aircraft before quoting a firm window, because an unexpected layer of hydraulic film or a recent diversion through volcanic-ash airspace can add an hour to the process.

The best time to schedule is during a planned overnight stop or a maintenance downtime of six hours or more. If you are flying in from an early-morning departure out of London or Paris and plan to stay at Bern until the following day, we can start the wash an hour after you block in, work through the afternoon and have the aircraft ready for a pre-departure walk-around the next morning. For aircraft based at Bern, we typically work midweek when the apron is quieter and the handler has more flexibility with stand assignments. Weekend work is possible but requires advance notice, because the General Aviation Center reduces staffing on Saturdays and Sundays.

What does Alpine climate do to paint and exterior surfaces?

Bern is not high-Alpine, but at 1,675 feet and surrounded by higher terrain it sees cold nights, frequent morning frost and a longer winter than the lowland airports around Zurich or Geneva. Cold-soaked fuel tanks mean frost forms on the upper wing surfaces even when the air temperature is a degree or two above freezing, and that frost traps soot, road salt and de-icing fluid residue. Once the aircraft climbs into warmer air, the contaminants bake onto the paint and become harder to remove with each cycle.

Bug strikes are heaviest in late spring and summer, when insects swarm over the Aare valley at dusk and early morning. If your aircraft is flying multiple legs per day during June and July, you will see a thick layer of protein residue on the leading edges, nacelle inlets and windscreen within a week. That residue is mildly acidic and will etch into the clearcoat if left for a month, so we recommend a dry wash every two weeks during the warm season. In winter the bug load drops to near zero, but exhaust soot and belly grime increase because the aircraft spends more time at lower power settings during ground ops and because de-icing fluid attracts road dirt thrown up by ground vehicles on the apron.

Can you fit a dry wash into a short turnaround at Bern?

A true quick-turn—wheels-up in ninety minutes—is too tight for a full exterior dry wash, but we can perform a partial wash focused on the windscreen, nose cone, leading edges and nacelle inlets in about sixty minutes if the handler has been notified in advance and the aircraft parks on a stand close to the GAC terminal. That abbreviated service will not touch the belly or gear bays, but it will remove the bug strikes and exhaust film that affect the pilot's forward visibility and the perceived condition of the aircraft when passengers board.

For a longer turnaround—say, three to four hours while the passengers attend a meeting in Bern—we can complete a full dry wash of a light or midsize jet, provided we start within fifteen minutes of block-in and the handler has confirmed that no immediate tow or refuelling conflict exists. The single-runway layout at Bern means ramp traffic is predictable, and the absence of slot pressure means the handler is usually willing to accommodate a detailing window if we have given twenty-four hours' notice. If the schedule tightens unexpectedly, we will pause work, clear the stand and resume once the aircraft is back in position, but that fragmentation adds thirty to forty minutes to the total elapsed time.