Ok guys yes cold (well cool in Florida) took a good look at my VMAR bird dog ARF last night , really pretty nice laser cut quaility good, although designed for electric power it states on the box 06 thru 12 glow power, they use a ply mount base that either glow or electic can be mounted on and then bolts to the firewall with 4 bolts in a stand-off setup the firewall has a large cutout in the middle. Playing "mock-up" it turns out the little MVVS 09 will mount at about 220 degrees (cylinder about 8 oclock which puts the muffler in the plane with room to spare and it then can be piped to the outside this would allow a nice cowl in (it actually is in the battery area) and still plenty of room for the tank over it
of course a ply plate over it to keep heat from the tank. wt 130 gm - OS 10 wt 160gm ASP 12 194 gm (all wts with muffler) using the Os 10 or ASP 12 would have the engine sideways or up right and work but would not look that great (also all engines have diesel heads). the only thing to be done to the MVS would be a metric cap screw to replace the t bar thing since it would strike the cowl and not allow adjustment the OS or ASP do need the OS manifold extens OS part 21125108 to clear the cowl in any mount angle (I have it)
there is no such aninal for the MVVS 09 and an arc is cut into it so it mates with cylinder held on with a U bolt understand these are pretty scarce now

extra ply plate to hack in the box for motor install

also got the OS part # 21125502 is a 2pc adaptor the allows the installation of the muffler 90 degrees from horizonal thus can be straight up or down it will fit the ASP 12 15 and of course the OS10 never know might have a use sometime the whole thing with shipping was about $25 from tower ( muffler ext too) it has no application for the bird dog martin

fuel formulas came in the box with the MVVS09 ether 45% Kero 30% Castor 25% (sport use) racing ether 30% kero 42% Castor 25% amyl nit 3% 0r ether 30% kero 43% Castor 12%
parafin oil WHATS THAT??) AMYL NIT 3% I USE DAViS 1/2 a MIX AND ITS RUNS FINE