In reality I work on something else actually, because European championship is comming.
But I am prepared to use it this way:
1/ The motor is combo of two PJS 1500
http://www.pjs.cz/produkty/informace/500-1500/index2.htmIt is low rpm motor, co I cout with battery of 5 cells up to 4Ah. Ithink it will be 2x20A. My xls says the usefull prop will be graupner 9x6 (available left and right) and it will need 19A for 10000. Power on shaft will be 2x210W and efficiency 75% ... it is not the best, but usefull.
PJS can make twins with almost any motor ... here is exmaple of smaller twin available as regular product:
http://www.pjs.cz/produkty/informace/2x550R/index2.htm2/ the prop on picture is Variprop which is available in many combinations including folding prop and 5 blade prop, the middle piece widhts 11g (1/2oz), and yes it allows on ground pitch setting (every blade independet, so it allows tricks with unequal pitch or so) ... but I thing it is not the best choce for my use, but looks great
http://www.ramoser.de/home_e/varioprop_e/varioprop_e.html3/ ESC will be separately for each motor, I will use Jeti SPIN modified for stunt (little quicker responce in governor mode and brake)
http://www.jetimodel.cz/eng/spin44_en.htmlIt allows to set RPM directly by something called Jeti Prog Box:
http://www.jetimodel.cz/foto/jetibox2.jpgit allows to set all parameters of ESC including gear ratio, number of motor poles and governor mode rpm (directly like rpm, not any percentage or so)
so I do not plan to play with pitch, I will rather play with independently adjustable rpm setting ... they go the same battery, so the power difference is not important
but I do not think it will need exact adjustment ... on on prop models we have 0% counter rotating, so counterballancing up to 90% will be great improvements and on the other hand, my primary goal is to cancel gyroscopic moment and that needs equivalent rpm ... I do not know, we will see what will work best
4/ since ESC allows rpm setting, both ESC can work with the same impulse width (throttle) so I will use one timer:
http://www.clstunt.com/htdocs/dc/dcboard.php?az=show_topic&forum=103&topic_id=212908&mesg_id=212908&listing_type=search