![[Translate to English:] Ein Musterprüfingenieur untersucht eine Modifikation des Part-21.](/fileadmin/_processed_/f/e/csm_drf-aviation-services-part-21-foto-bert-spangemacher-quelle-drf-luftrettung_d205390d2e.webp)
Your Future is Our Mission.
As a Part-21J and Part-21G organisation, we modify all aspects of aircraft, from avionics and structures to special mission equipment. This ensures you stay ahead of time today and in the future.
Turning Ideas
into Reality.
To stay ahead tomorrow, you need to make the right decisions today. As a design and production organisation, we turn innovative ideas and modifications into reality – including the validation of supplemental type certificates (STCs).
Our engineering expertise and hands-on capabilities as a Part-21J and Part-21G organisation have already been demonstrated through numerous certified modifications. Schedule a non-binding consultation and benefit from our expertise to unlock the full potential of your aircraft.
A Selection of Our Portfolio:
Visibility is safety. Our system of eight powerful LED lights increases helicopter visibility in every situation – both on the ground and in the air. Optional interfaces to TAS and FLARM, as well as integration with our own collision avoidance system (CAS), are available.
| Type of Modification | Minor Change |
Compatible Helicopter Types
| EC135 T2+ (EC135) EC135 P3H (H135) EC135 T3H (H135) BK117 D2 (H145) BK117 D3 (H145) R44 (Robinson) |
| Requirements | No general requirements—each case is proven individually. |
| Weight | approx. 2 kg |
| Man-hours | approx. 250-300 MH |
| Downtime | 2-3 weeks |
Benefits:
- Improved visibility and safety – day and night
- Enhanced illumination of the working area
- Optional interfaces to TAS and FLARM as well as integration with CAS
The MEG enables bulky or heavy loads and transport containers of up to 300 kg to be secured quickly and safely. Mounted to the helicopter floor, the MEG is suitable for applications such as transporting EpiShuttles or incubators.
| Type of Modification | STC |
| Compatible Helicopter Types | BK117 C2 (EC145) BK117 D2 (H145) BK117 D3 (H145) |
| Requirements | AHD Cabin Floor |
| Weight | apprx. 50 kg |
| Man-hours | 1 MH |
| Downtime | 1 day |
Benefits:
- Transport of special cargo containers up to 300 kg
- Very fast installation and removal within one day
- Certified system (STC)
![[Translate to English:] Blick auf zwei Display im Cockpit eines Hubschraubers.](/fileadmin/_processed_/1/7/csm_drf-aviation-services-part-21-lpv-approach-system-quelle-drf-luftrettung_ec211ab7d9.webp)
The GPS-based LPV approach system enables older aircraft to meet current standards and land at airports more easily, safely and with full certification. Whether as part of an avionics upgrade or a new installation, the LPV approach system makes flying easier and safer for your crews, especially at night and in poor weather conditions.
| Type of Modification | STC |
| Compatible Helicopter Types | EC135 P3H (H135) EC135 T3H (H135) |
| Requirements | Helionix Cockpit |
| Weight | approx. 1,4 kg |
| Man-hours | 125 MH |
| Downtime | 1 week |
Benefits:
- Upgrading older helicopter models to current standards
- Easier, safer and fully certified airport approaches
- Expanded operational capabilities for your existing fleet
![[Translate to English:] Nahaufnahme zweier Hände, die einen Light Weight Flight Recorder im Cockpit einbauen.](/fileadmin/_processed_/2/f/csm_drf-aviation-services-part-21-light-weight-flight-recorder-quelle-drf-luftrettung_65996bf11e.webp)
Based on Hensoldt’s SferiRec 100 hardware, the ultra-lightweight and compact flight recorder saves valuable space for other mission-critical equipment. It integrates seamlessly into the avionics configuration and ensures full compliance without compromising performance. The system is specifically designed for turbine helicopters (2,250–3,175 kg MCTOM) and is optionally available with a cockpit camera.
| Type of Modification | STC |
| Compatible Helicopter Types | EC135 P2+ (EC135) EC135 T2+ (EC135) |
| Requirements |
|
| Weight | approx. 7,5 kg |
| Man-hours | 300 MH |
| Downtime | 4 weeks |
Benefits:
- Compact design with a weight of only 1.4 kg
- Short installation time of only one week
- Optional upgrade with cockpit camera
![[Translate to English:] Nahaufnahme einer Night Vision Google (NVG).](/fileadmin/_processed_/a/8/csm_drf-aviation-services-part-21-nvis-nvg-foto-steven-siebert-quelle-drf-luftrettung_6e57681791.webp)
For safe night vision goggle (NVG) operations, we support you with EASA-approved modifications for Night Vision Imaging System (NVIS) certification on Airbus helicopters (e.g. H135 or H145), crew and technician training, and access to our NVG Shop.
Benefits:
- EASA-approved modifications for NVIS certification
- Training for crews and technicians
- Dedicated NVG Shop
![[Translate to English:] Auf einem Display im Cockpit eines Hubschraubers ist eine Wetterkarte zu sehen.](/fileadmin/_processed_/c/6/csm_drf-aviation-services-part-21-wetterradar-garmin-quelle-drf-luftrettung_e4c7f10c57.webp)
The Garmin GWX 75H weather radar supports your crew during flight with advanced hazard detection and intelligent route planning. The radar is installed on AHD’s pre-installed RDR 2000 fix provision, available for both the BK117 D2 and BK117 D3 models. Glare-free illumination and a high-resolution display further ensure that your crew can focus on what matters most in every situation.
| Type of Modification | Minor Change |
| Compatible Helicopter Types | BK117 D2 (H145) BK117 D3 (H145) |
| Requirements |
|
| Weight | approx. 6 kg |
| Man-hours | approx. 50 MH |
| Downtime | 1 week |
Benefits:
- High-resolution displays for improved hazard detection
- Glare-free lighting for clear visibility
- Short installation time of only one week
- Upgrade option to GWX 8000 StormOptix available
| Type of Modification | Minor Change |
| Compatible Helicopter Types | BK117 D2 (H145) BK117 D3 (H145) |
| Requirements |
|
| Weight | approx. 6 kg |
| Man-hours | approx. 50 MH |
| Downtime | 1 week |
![[Translate to English:] Zeichnung des Breitbandsystems für Hubschrauber.](/fileadmin/_processed_/2/5/csm_drf-aviation-services-part-21-breitband-quelle-drf-luftrettung_3781d83add.webp)
Our broadband system brings fast, secure internet connectivity to your Airbus H145. With a short installation time of only two to three weeks, real-time data transfer, VoIP communication and streaming provide valuable time benefits. Applications include the secure transmission of patient data as well as productive work and the exchange of important business information.
| Type of Modification | STC |
| Compatible Helicopter Types | BK117 D2 (H145) BK117 D3 (H145) |
| Requirements | Multifunctional step expension from AHD |
| Weight | approx. 8,5 kg |
| Man-hours | approx. 160 MH |
| Downtime | 2-3 weeks |
Benefits:
- High-speed internet connectivity – in flight and on the ground
- Secure transmission of sensitive data
- Bluetooth interface to Becker Avionics
- REU6100 remote control unit
Our 100-watt USB-C ports provide a fast and reliable power supply for tablets, smartphones and other electronic devices during flight. Developed specifically for the H145, they can be installed within one week and ensure that devices in the cockpit or VIP cabin remain operational throughout the entire flight.
Benefits:
- Charging of electronic devices with up to 100 W during flight
- On-site installation available
The dual TETRA rack was developed for public safety organisations. It accommodates two TETRA radios and can be installed in approximately 30 minutes. Thanks to its compact and secure integration in the rear cabin area and its quick-release design, the unit can be removed within seconds, for example for replacement of the EuroNav-7 hard drive or other maintenance tasks.
Benefits:
- Quick-release design for easy access and component replacement
- Minimal installation time
Let’s plan your next modification.
We are happy to assist you with any questions regarding potential modifications to your aircraft.
Your Enquiry