Started on 10 March 2014 and reached at Rowing via Dibrugarh Airport, Brahmaputra River. Next day morning I left for Etalin and after reaching I met the Project Manager Mr. Gupta. On the 12th and 13th, together with a team of 12 people, I visited 5 proposed sites and another 2 sites discovered by the local team to ascertain the suitability of helipads for MI-17 and MI-26 for induction of earthmoving machinery, trailblazer etc. for the creation of hydroelectric projects. Mr. Manoj and Siddharth, who accompanied me from Delhi, were very helpful in the entire operation. Previously, while going from Rowing to Etalin, I also evaluated the helipads where the above-mentioned tools could be placed for air transport to the site!Helipads for the placement of equipment. Rowing.2808.776N 9550.368E, Altitude 383 m, Dimensions 100m by 150m. Approach/Taken Off-North/South. 3 MI-17s can be positioned in echelon while 1 can operate from the center. MI-26 operation not feasible due to tin roofs adjacent to the helipad, which may fly off during operations.KM-72 Army Convoy Ground2818. 249N 0955.311E, Altitude 1908m Approach/takeoff - NE and unobstructed, Dimensions - 80m within 300mSouthern Hills approx. 1.5 km.The MI-26 can operate from here with suspended or internal load with 8-10 tons.Hunli2819.464N 09558.065E, elevation 1282 m, dimensions 80 m by 80 m. Approach, takeoff - AND/OR limited Suitable for MI-17 operations. Anini2847.831N 9553.96E, Elevated 1654 m, size 80 m by 30 m of concrete. (Built in 1962 or earlier because moved aboard). Unrestricted approach/takeoff along the valley. Maintained by the state government and seen 60 barrels of fuel placed there. Operation Underslung by MI-26 can be undertaken from here with 8-10 tons.Passighat28041959N 9520338EAir distance of Passighat from Etalin is... middle of paper... loaded, may plan to pick up fuel from Anini for return which will only last 10-12 minutes.9. All the above operations except Dibrugarh, the flight time of one round i.e. 72 Km to S2/A3/V helipad and back will be less than 50 minutes, so fuel requirement will be approx. 1.30am per sortie.10. All proposed sites or helipads are hard and the adjacent stony/grassy areas are long enough to provide sufficient terrain to cushion landing and take-off and ensure IGE operations. Operations under suspension should be avoided as riding can be difficult in valleys.11. Test landing/familiarization sorties are recommended prior to actual operations.12. The fuel consumption of the MI-26 at 3000 feet will be close to 2.5-3 tons per hour. The entire visit was a success and I hope the helicopter operation goes well. The helipads, if constructed, will be useful for future operations at the dam site.