Open path wind tunnel VQF series

Product overview
The compact LTG Fahrtwind‑Simulators type VQF are designed for use in chassis dynamometers and for universal cooling or airflow simulations. They enable very space‑saving installation through 90° air deflection and can be mounted directly on walls without impairing aerodynamic values. LTG tangential (cross‑flow) fans provide uniform airflow across the entire outlet width.

Standards and compliance
LTG Fahrtwind‑Simulators type VQF meet directives such as WLTP, RDE, CFR §1066 and WMTC. Variants are available EMV‑ILA compliant; some variants also meet EPA, SC03 or WTLP requirements.

Applications

• Automotive industry (vehicle and component testing)
• Test laboratories in mechanical and plant engineering
• Chassis dynamometer applications and other cooling/airflow simulations

Design highlights

• Space‑saving installation enabled by 90° air deflection
• Possible direct wall mounting without affecting aerodynamic values
• Use of tangential (cross‑flow) fans for uniform outlet flow across the full width

Technical data (table)
Type | Average blow-out speed [km/h] | Blow-out cross-section HxW [mm] | Blow-out height above the bottom [mm] | Conveyed volume flow [m³/h] | Ambient temperature [°C] | Requirement
VQF 200/1000 | 70 | 1 000 x 121 | 200 - 1 500 | 9 000 | +10 to +40 |
VQF 500/800 | 100 | 584 x 800 | 240 - 600 | 47 000 | +4 to +40 |
— | 120 | 630 x 630 | 105 | 48 000 | -40 to +40 |
— | 160 | 300 x 800 | 200 | 40 000 | -30 to +40 |
VQF 500/1 250 | 135 | 294 x 1 030 | 200 - 500 | 40 880 | -10 to +40 | WLTP, CFR
— | 135 | 294 x 1 030 | 200 - 500 | 40 880 | -30 to +40 | WLTP, CFR
— | 135 | 294 x 1 030 | 200 - 500 | 40 880 | -40 to +60 | WLTP, CFR
— | 135 | 356 x 1 118 | 200 - 500 | 51 300 | -10 to +40 | WLTP, CFR, EPA
— | 160 | 294 × 1030 | 200 - 500 | 48 000 | -10 to +40; -30 to +40; -40 to +60 | WLTP, CFR, RDE
VQF 630/1250 with nozzle | 150 | 630 x 630 | 85 | 60 000 | -10 to +40 | WMTC
VQF 630/1400 | 150 | 382 x 1 000 | 200 - 500 | 57 300 | +10 to +40 |
VQF 800/1250 with 3 nozzles | 100 | 914 x 1 070 | 50 - 350 | 98 000 | -30 to +50 | SC03
— | 135 | 300 x 1 000 | 200 - 500 | 40 800 | -30 to +50 | WLTP
— | 160 | 600 x 1 000 | 50 - 350 | 98 000 | -30 to +50 | RDE
VQF 800/1400 | 90 | 488 × 1 400 | 455 - 655 | 62 500 | -25 to +40 |
VQF 1 000/1 600 | 140 | 800 x 1 200 | 45 | 135 000 | -40 to +50 |
— | 140 | 850 x 1 600 | 45 - 495 | 199 000 | -35 to +55 |
— | 150 | 800 x 1 500 | 100 - 450 | 180 000 | -35 to +50 |
VQF 1 000/2 000 | 160 | 800 x 1 400 | 50 - 350 | 179 000 | +10 to +35 | WTLP
— | 200 (with nozzle) | 460 x 1 600 | 45 - 495 | 199 000 | -35 to +55 |

Downloads (filenames)

• Short information Fahrtwind-Simulators VQF/VAF (PDF)
• Short information Fahrtwind-Simulators Calibration and Service (PDF)
• Short information Fahrtwind-Simulators VQF Comfort Drive (PDF)
• Technical brochure Fahrtwind-Simulators VQF (PDF)

Characteristics / technical specifications

• Series: VQF (Fahrtwind‑Simulators)
• Fan principle: tangential / cross‑flow fans for uniform outlet flow
• Installation: 90° air deflection enables very compact installation and wall mounting
• Standards: WLTP, RDE, CFR §1066, WMTC; variants available EMV‑ILA compliant; some variants list EPA, SC03 or WTLP requirements
• Application areas: chassis dynamometer testing, automotive testing, test laboratories and other cooling/airflow simulations
• Wide range of variants covering average blow‑out speeds from ~70 to 200 km/h and conveyed volume flows from ~9,000 to ~199,000 m³/h
• Ambient temperature ranges vary by variant (examples: -40 to +60 °C, -35 to +55 °C, -30 to +50 °C, +10 to +40 °C)