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SAGA System for Helicopter Takeoff, Approach and Landing
Hunan Chendong Technology Co.,LTD (shorted as CDT)is a professional manufacturer for Green navigational aids products, mainly for aviation obstruction lights, helipad lightings and meteorological target lamp in China . CDT got ISO 9001:2008 certification the first year when established.As pioneer in China, our products are approved by ICAO and CAAC certificate. CDT keep acting as a solution provider for customers with specialty. And our products have been exported over 50 countries and areas all over the world.
- Introduction
Approach Azimuth Guidance. The SAGA (System of Azimuth Guidance for Approach) provides a combined signal of approach azimuth guidance and threshold identification.
- Product Picture
- Specification
- The System of Azimuth Guidance for Approach will comply with ICAO recommendations Annex 14,Volume I paragraph 5.3.4 and French STAC.
- It will comprise of 2 “Flashing” Units (master and slave) located symmetrically on both sides of the
runway (or TLOF for heliport) threshold - Depending of his position on the approach axis, the pilot will receive visual information of two
“Flashes” supplied by the two “flashing” units of the SAGA. - If the pilot is on the axis +/- 0.45°, the two “Flashes”are simultaneous.
- If the pilot is not on the axis within an angle comprise between -30 and +30°, The two “Flashes”
will be see delayed of a time between 60 and 330 ms (the further the aircraft is from the axis, the
greater the delay). The delay between the two“flashes” produces a sequence effect which shows
the direction of the axis. - The SAGA system will be powered in 110Vac-230Vac 50/60 Hz. It will be equipped with12 Vac 105 W pre-focused reflector lamps.
- It will be remotely controlled in 48Vdc.
- Monitoring will be possible through 2 dedicated dry contacts.
- The SAGA system will be available with heating resistors for cold and/or wet areas.
- The system will be automatically put out of service if at least one of its two “Flashing”
Units becomes defective. - The Body, Cap and Support of the “Flashing” Unit will be in aluminium alloy, phosphate and
painted in aviation yellow. All fixings and fastenings will be stainless steel. - The Power Supply Box will be made of reinforced polyester and will be IP 65 rated.
- The Legs of the “Flashing Units” will be frangible.
- Location on the field
The two light units of a SAGA system must be installed at 10 metres from the runway Edge symmetrically on both sides of the Runway threshold (for TLOF the two units must be installed as close as possible to the threshold edges).The Master unit must be installed on the right of the Threshold
- Operation principle
The SAGA system includes two light units (one Master and one Slave) placed symmetrically on both sides of the Runway (or TLOF) threshold supplying unidirectional rotating beams which give a flashing effect. The pilot receives, each second illumination of two “Flashes” provided in sequence with the two light units.
1. When the aircraft flies inside a 9° width angular sector, cen tred on the approach axis, the pilot sees the two lights “flashing” simultaneously.
2. When the aircraft flies inside a 30° width angular sector, centred on the approach axis and outside the previous one, the pilot sees the two lights“flashing” with a variable delay (60 to 330 ms) according to the position of the aircraft in the sector. The further the aircraft is from the axis, the greater the delay. The delay between the two“flashes”produces a sequence effect which shows the direction of theaxis.
3. The visual signal is not visible when the aircraft flies outside the 30° angularsector.
| Component | Description |
| Lamp | One 12 Vac 105 W pre-focused halogen reflector lamp |
| Power supply | 110V-230 Vac 50/60 Hz |
| Electrical consumption | Less than 250 W for the SAGA system and 240 W maximum for the heating resistors |
| Visual range | 10 nautical miles in standard visibility conditions |
| Operation angular sector | 15 degrees on both side of the approach axis |
| Axis accuracy | +/- 0.45 degree in azimuth |
| Delay between flashes | From 60 to 300 ms |
| “Flashes” frequency | 0.5 Hz |
| Finish | Body, Cap and Support are in aluminium alloy,phosphated and painted in aviation yellow. All fixingsand fastenings are stainless steel. The IP 65 – 20Joules Power Supply Box is made of reinforced polyester |
| Working temperature | From -40°C to +50°C |
| Remote CMS | Remote control from 48 Vdc. Monitoring feed back signal using two dry contacts (Contact capacity = 250 V / 1A maximum). |
Q1. Can I have a sample order for Obstruction light?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A: Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than.
Q3. Do you have any MOQ limit for Obstruction light order?
A: Low MOQ, 1pc for sample checking is available.
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order for Obstruction light?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on Obstruction light product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q7: Do you offer guarantee for the products?
A: Yes, we offer 2-5 years warranty to our products.
Q8: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.
Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.