Hi Jose:

All depends on how smooth your grass is......we roll our field each spring with up to 6000 lb roller and cut it to 5/8-3/4 inches during flying season with a golf course-type reel mower, not a rotary mower which tends to scalp and leave tracks......

Currently clubmembers fly all types of scale and sport planes including big BVM F-86, JHH F-86, SuperBandit, UltraBandit, Kingcat, Bobcat ARF, Boomer Intro, Boomer XL, Deviator, Twin EDF Phantom, EDF A-10, Eurosport, HotSpot, Kangaroo, Skymaster F-22, Skymaster F-18, Avonds F-15 and F-16......one of our members will have a SM F-4 ready for this spring.....no problems with the landing gear except when we prang one....I went the whole 2007 season without busting a flex plate on my BVM F-86(80inch)......use mainly Robart 630 and 635, BVM, and Skymaster gear.........BVM usually needs no beefup, but we often add some Carbon fiber plate, 1.5 or 3.0mm to the mounting plates in some of the other kits just for added protection.....

Your Elan/P-70 should be fine, but I would add some C/F or hardwood to the mounts....they come a bit soft from the factory.......

Our field is 850 ft long by 200 ft wide with long, clear approaches both ends......

T.....