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Development Of Loom Board Concept In Lca Tejas Aircraft
Abstract: LCA-TEJAS is a light weight, digital fly by wire aircraft with complex harness technology. Loom equipping on the aircraft becomes cumbersome where different cross functional teams work simultaneously. Hence the need for loom integration was felt. A detail study on the loom routing path including length and branching was made. Loom boards for different systems/areas were made. Equipping time on the aircraft thus saved.
Notices, Deadlines & Correspondence
Patent Information
Applicants
HINDUSTAN AERONAUTICS LIMITED
Inventors
1. MS. U. VATHANA
2. MS. K. VEENA
Specification
DESCRIPTION TECHNICAL FIELD
Concept of loom boards evolved to minimize the work on aircraft by integrating looms on loom boards.
BACKGROUND OF INVENTION
Tejas is a light weight, multirole, highly agile, multi-role, supersonic fighter developed by India. It is a tailless, compound delta wing design powered by a single engine.
It has quadruplex digital fly-by wire Flight Control System (FCS) with associated advanced flight control laws.
In this all the physical control of the aircraft are replaced with an electrical interface. To accomplish digital fly by wire technology, the harness structure has become very complex. Hence wiring of the aircraft is done in two stages: Initially on the bench and then finally on the Aircraft.
Since the Aircraft is heavily packed with different LRUs, the cutouts for cables and the space left for laying of cables is very limited.
It is observed that the time consumed and man-power involved for laying the looms and finalising the connectors on the aircraft is huge causing delay in equipping time in-turn production time.
Hence the concept of loom boards was invented.
SUMMARY OF INVENTION
Loom board technology was developed based on reverse-engineering methodology.
CONCEPT EVOLUTION IN DETAIL
Loom installations drawings suggested for routing the looms on the aircraft were studied. Connectors locations were found on the aircraft. Physical path including branching for loom routing was observed. The cutouts through which the looms are routed were marked. Actual loom lengths were finalized. Rough sketches were made, and eventually the optimum path for loom routing was arrived.
No. of loom boards developed
1. DFCC
2. Cockpit
3. Rear Fuselage (LEFT)
4. Rear Fuselage (RIGHT)
5. Spine 6..MMR
CLAIMS
We claim that concept of fabrication of looms using loom board for LCA-Tejas Aircraft.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 6820-CHE-2014 CLAIMS 31-12-2014..pdf | 2014-12-31 |
| 1 | 6820-CHE-2014 FORM-5 31-12-2014.pdf | 2014-12-31 |
| 2 | 6820-CHE-2014 ABSTRACT 31-12-2014.pdf | 2014-12-31 |
| 2 | 6820-CHE-2014 FORM-3 31-12-2014.pdf | 2014-12-31 |
| 3 | 6820-CHE-2014 CORRESPONDENCE OTHERS 31-12-2014.pdf | 2014-12-31 |
| 3 | 6820-CHE-2014 FORM-2 31-12-2014.pdf | 2014-12-31 |
| 4 | 6820-CHE-2014 DESCRIPTION (COMPLETE) 31-12-2014.pdf | 2014-12-31 |
| 4 | 6820-CHE-2014 FORM-1 31-12-2014.pdf | 2014-12-31 |
| 5 | 6820-CHE-2014 DESCRIPTION (COMPLETE) 31-12-2014.pdf | 2014-12-31 |
| 5 | 6820-CHE-2014 FORM-1 31-12-2014.pdf | 2014-12-31 |
| 6 | 6820-CHE-2014 CORRESPONDENCE OTHERS 31-12-2014.pdf | 2014-12-31 |
| 6 | 6820-CHE-2014 FORM-2 31-12-2014.pdf | 2014-12-31 |
| 7 | 6820-CHE-2014 ABSTRACT 31-12-2014.pdf | 2014-12-31 |
| 7 | 6820-CHE-2014 FORM-3 31-12-2014.pdf | 2014-12-31 |
| 8 | 6820-CHE-2014 CLAIMS 31-12-2014..pdf | 2014-12-31 |
| 8 | 6820-CHE-2014 FORM-5 31-12-2014.pdf | 2014-12-31 |