NorthStarDC4M From Canada, joined Apr 2000, 3127 posts, RR: 36
Reply 6, posted (7 years 8 months 1 week 3 days 11 hours ago) and read 32767 times:
AIRLINERS.NET CREW CHAT OPERATOR
Well the ORIGINAL Caspian Sea Monster was actually the single KM Ekranoplan...
The KM was actually "small" for an Ekranoplan...
The Lun class and the AS-90 were both later designs, much larger, that the CIA and USAF were still trying to fathom up into the 80s and were still known as Caspian Sea Monsters... but anyways, fascinating bit of engineering, pity it's never been used much...
Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.
not quite true... Per Sergey Komissarov's book, Russia's Ekranoplans, the KM was the largest of the Alexeyev ekranoplans weighing in at 1,299,300lbs, and 300ft long. the Lun is 240ft long and weighs 838,000lbs, and the Orlyonok (A-90) ios 190ft and weighs 275,000lbs.
Only one KM was built, and it crashed in 1980, one Lun was completed, and is now Derilict at a Russian Amphibious base, and finally, three A-90s were built, and two crashed. It should be mentioned that there is a second lun basically complete in Nizhni Novgorod. Does any one have any information on this? I know that they were wanting to turn it into a search and rescue craft called the Spasatel.
Deskflier From Sweden, joined Jan 2007, 537 posts, RR: 0
Reply 9, posted (7 years 8 months 1 week 1 day 19 hours ago) and read 32767 times:
The Soviets actually had a civilian version in service from the mid-1970s. It carried passengers along the great rivers in Ukraine and southern Russia, the Black Sea coast, and across the Caspian. No known international routes. I don't remember if they were operated by Aeroflot or if they were operated by the Soviet Ferry Service. Pretty sure though that the military variants were operated by the Navy rather than any Aviation Services (FA, AV-MF, or V-TA). Which would indicate that the Ekranoplanes were classified as boats rather than aircraft.
FA = Frontovaya Aviatsiya (Frontal Aviation)
AV-MF = Aviatsiya Voenno - Morskoi Flota (Aviation of the Military High-Seas Fleet)
V-TA = Voenno - Transportny Aviatsiya (Military Airlift Service)
Apologies for my poor Russian.
How can anyone not fly, when we live at a time when we can fly?
Ignat From Russia, joined Jan 2002, 54 posts, RR: 0
Reply 12, posted (7 years 8 months 1 week 4 hours ago) and read 32767 times:
There weren't any civil versions. A-90 were belonged to the Naval Aviation, 11th separate aviation group of ekranoplanes (the translation from Russian into English might be not accurately).
Ground effect is the phenominon whereby an aircraft flying within one wingspan of the ground has much less induced drag. Say that a planes wingspan is 100' wide. Well when that airplane flies within 100' of the ground its drag is significantly lower.
For an example, when going for my pilots license I practiced soft feild takeoffs. You would pull back on the yoke as you started the take off roll and instead of waiting for 60 knots to rotate you would get airborne as soon as possible, which I think was around 50 knots. Now your airborne at a speed that you can only fly at within that Cessnas 30' wingspan of the ground. So you keep it on the deck until you get that other 10 or so knots of speed, then climb out. Another words in that Cessna I was flying at a speed that was only possible that close to the ground because of the reduced drag.