Originally posted by avie
another question. do the fans deliver enough thrust and power ? it seems quite heavy for the thrust they would provide (400 grams each by wemotec ?)
The WB-57 weighs about the same and flies pretty well on this set up. Granted it has more (lots!) wing area, but also a higher amount of parasite drag. The Flankers' estimated wing loading is approximately 24 oz./sq. ft.
Our own concerns as to whether the power will be enough is why we have the testing planned that we do. If the static thrust and tailpipe velocity look okay, we'll move onto taxi tests. Fortunately, our runway is about 900 ft. of 150 ft. wide asphalt, so there's plenty of room to get slowed down (or land) in case it doesn't look like they'll fly. This is one of the advantages of ROG, you have a much wider go/no go window in which to decide.