View Full Version : New - Helibug Conversion for XCell Stratus
05-10-2011, 07:50 PM
Take advantage of the high quality Stratus airframe and convert it to gas power!
simple conversion, high quality parts!
Photo Courtesy of Helibug
look for a build thread here in the future!
More Info Here (http://helibug.com/HBS-ST.htm)
05-11-2011, 06:46 AM
The PN for the Spectra G Column (A-frame) is 125-40. http://www.miniatureaircraftusa.com/index.php?page=shop.product_details&flypage=flypage_images.tpl&product_id=695&category_id=17&option=com_virtuemart&Itemid=82
How similar/dissimilar are the parts between the Stratus and Spectra? To the untrained eye, it looks like they're the same from the A-frames up.
Also, what's the difference between these two FBL rotorheads, apart from price and PN?
05-11-2011, 12:27 PM
First the rotor heads,
#128-310 55/600 Flybarless Head (http://miniatureaircraftusa.com/manuals/FlybarlessInst.pdf)
#122-205 60/90 Flybarless Head (http://miniatureaircraftusa.com/manuals/90FlybarlessInst.pdf)
#128-310 is for the 55/600 and the #122-205 is for larger models. If you look at the parts lists in the links I posted, they use the same head block but not much else is shared. The grips/bearings on the 122-205 are the traditional XCell metal head parts. I have one on a Spectra-G, its working well
Now on to the Spectra/Stratus upper chassis
they share a lot of parts with some differences:
different pinion/main gears
the relative positioning of the frame ladders to the clutch is different. The frame ladders are the same height but they are closer to the boom line. If you look at the difference between the two Spark conversions, one has engine spacers and the other doesn't. The CG on the Stratus conversion will be slightly closer to the boom centerline.
the servo positions are different. Stratus uses shorter runs for elevator and equal lengths for elevator/pitch. The throttle servo setup is different as well
the radio tray setup is different, it was designed several years after the Spectra so the cutouts and wrap cutouts reflect different sized equipment
the front t/r drive bearing in the spectra is contained in a metal channel. Stratus uses a machined bearing block.
the constant drive, bearing blocks, clutch stack is all the same as are the tail boom and rotor heads.
the later version Stratus frame ladders don't allow a cutout for the spark plug thats why you need the Spectra frame ladder piece to complete it. The original Stratus kits shared that part with the Spectra so if the donor model is an original Stratus, may not need to replace that part.
05-11-2011, 12:41 PM
05-20-2011, 05:27 PM
Any chance I could make this work for a fury extreme?
05-20-2011, 07:53 PM
no this kit is completely different. There are usually some stratus models for sale though.