I have built and flow the smaller Royal model of the Staggerwing and will include a link to a couple of threads that might give you some data on builduing and flying characteristics. With a scale interior, etc. it flew very well on a Saito .91.

[link=http://www.rcuniverse.com/forum/m_1579613/anchors_1623237/mpage_1/key_/anchor/tm.htm#1623237]1st thread on Staggerwing[/link]

[link=http://www.rcuniverse.com/forum/m_1871974/anchors_1880100/mpage_1/key_/anchor/tm.htm#1880100]2nd thread on Staggerwing[/link]