Mine has the lever arm so it can be opened regularly. Make SURE it latches solidly as wind can suck it open till it bangs against the sidewall and break.
I always check for free movement and "unstick" the seals and spray them with silicon during Spring Cleaning/dewinterizing.
Also DW would not survive the jump, so I bought a small 13 foot rolled safety escape ladder. http://www.amazon.com/Kidde-Two-Stor...+escape+ladder
The front (dinette) escape window has latches and the window has no hinge at the top. That one will fall out if opened, so be careful.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW