DVBP-13

Function in flight-data recording equipment

The sensor supplies an altitude signal to onboard measuring and flight-data recording equipment, including MSRP-family systems. It is not a cockpit altimeter: indication or recording is produced by the connected equipment, and correct operation also depends on the static-line integrity and electrical circuit.

In a flight-data system the altitude signal is correlated with other recorded parameters and the system time base. A channel fault may originate in the pressure mechanism, potentiometer, wiring, supply or static system. Replacing DVBP-13 without checking the associated circuits does not guarantee correction of the fault and must be followed by the prescribed functional test.

Confirmed technical parameters

The confirmed DVBP-13 barometric-altitude range is −250 to 13,000 m, with accuracy not worse than ±3%. Supply is 15 V DC and output resistance is specified as 2000 +700 ohms. Operating temperature is −60 to +60 °C, dimensions are 152 × 84 × 84 mm and mass is not more than 0.8 kg.

Installation checks cover the pressure fitting, seals, mounting and electrical connector, with protection against contamination and tubing damage. After work, technicians verify line tightness and compare output with specified pressure points. Permitted pressure-change rate and the bench-test procedure are defined by the product passport and recording-system documentation.

Documented aircraft application

Technical documentation confirms DVBP-13 installation on the An-26 and Tu-134 and its use with flight-data recording systems on other aircraft. The existing card lists An-12, An-26, Il-76, Tu-134, Tu-154 and Yak-42; eligibility for a specific airframe must be checked against its equipment list. The general barometric principle is described in the reference on altimeters.

The calibration characteristic of the individual unit is important to total channel accuracy. The range and error stated on this page are confirmed DVBP-13 data, but serviceability is decided from the passport and test results. Visually similar altitude sensors may use another supply, resistance or scale and are not accepted as substitutes on appearance alone.

Identification and ordering of DVBP-13

DVBP-13 and the original Cyrillic ДВБП-13 are search variants for the same designation. State the aircraft type, recording system, condition, delivery set and passport requirement in an inquiry. More measuring components are listed in the Aviamisto Sensors category, including the related DLUMM-10. Related products are not interchangeable.

An inquiry should identify DVBP-13, aircraft type, recorder, condition, delivery set and the need for a passport or test report. A nameplate photograph and removed-unit details are also useful. Cross-sells lead to related measuring products for category navigation and do not identify approved alternatives.

This card identifies DVBP-13 as an individual aviation product and does not replace its passport, illustrated parts catalogue or maintenance manual. Before supply, the nameplate, condition, delivery scope, required documents and applicability to the individual aircraft or system should be agreed. When the marking, equipment record and inquiry contain different information, the approved documentation for the installed execution takes priority and any disputed parameter must be confirmed before ordering. Incoming-inspection results and traceability data should be retained with the supply documentation.

Related products are selected by common system or measured parameter. This grouping improves catalogue navigation but is not a list of approved replacements. Any substitution requires matching designation, electrical interface, mounting dimensions and range, together with explicit confirmation in the applicable maintenance documentation.