please do.
as far as i know, RCS will be compromised by the landing gear assembly due to the several corners and surfaces.
the landing gear wont affect the visible observability as they are pretty small compared to the rest of the body. and dont jut out even as much as the stub wings.
Firstly plz note prime req of LCH is to operate in high altitude like LEH airfield
The fixed landing gear is towards the requirement of rough landing as the chopper is designed to operate in very high altitude in the Himalayan regions, where it is better to have all the safety gear you can get and which is tried and tested.
It's operating altitude is 6km.
There is a real chance that you will drop like a stone in the rarefied environment of Himalayas.
The fixed gear would be simple, rugged and no extra weight of the retractable mechanism.
Its more complicated to have a retraction mechanism with the actuators,and additional added back up system in case it fails to come back out ,and more space is required if its to be pulled into the fuselage, plus you need doors for that which means added hinges and actuators.
For weight constrained designs, every kg of weight removed is a performance gain, so its not needed.
Do note every Kg less adds to more speed and Maneuvering at high altitude operation.
Finally what i meant with LO is akin to stealth and IR reduction
Read the first line of this link
Stealth technology - Wikipedia, the free encyclopedia
And u interpreted LO as visibility issue .
anyways if you need more clarification ask me