Larry I was taught that you should always multiply the required distance by 3 to be safe, 2 for absolute minimum distance of clear space, beyond lift off. Since every plane is going to be different, the best thing to do is test your example on asphalt/concrete first; observe the distance required for a short field effort. Then takeoff from a long grass strip and compare the actual increased distance required due to actual greater resistance. Most of the Corvair and O-200 guys are reporting around 500 feet to be completely off, best effort. At a Vx climb of say 85 mph or 80 knots est., you should be able to climb solo at 1000 fpm or better (depending on prop etc) and gross weight at 500 fpm or better. If not do not attempt it. At 500 feet to lift off, you need 1500 feet of clear space to insure enough "whoops" space for slow reaction, rolling start instead of runup then go, etc... If you will have flaps, then testing needs to be done to see if a small setting enhances lift, say 10 degrees. This is common to see in many planes beginning with a C 152, all the way up to air carrier planes. The flaps are retracted after clearing the obstacle.
There are alot of variables and in order to plan or estimate, you will need to get very specific about your plan configuration and then talk to the owners who have that... Colin Rainey Independent Loan Officer Branch 2375 Apex Mortgage Company 386.615.3388 Office 407.739.0834 Cell 407.557.3260 Fax brokerpi...@bellsouth.net <mailto:brokerpi...@bellsouth.net> -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Larry H. Sent: Sunday, September 24, 2006 1:06 AM To: kr...@mylist.net Subject: KR> TAKEOFF DISTANCE OVER 60' OBSTACLE I am hoping to be able to land and takeoff my AIRBUGGY by my dads house like Mark L does. For those who have larger engines, what do you think your takoff distance would be off of a grass field and be able to easily make it over 60 to 70 feet tall trees? Thanks for your help I would like to know if I can keep thinking about this or forget it. Larry H. Airbuggy in the workshop _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
