Copter Doctor
Elite Veteran
Location: daleville/ft.rucker, al- home of army aviation
My Posts This: Topic Forum | you know, thats a great question.
lets go backto before electrics came of age. all we had were the nitro birds for the most part. we had the 30 size helis and the 60's. back then(70's and 80's) the 30 size machines used the os 25 withthe 28 replacing it, then came the 32. enya had the 35 and supertiger later in years made a 34. these were the heli engines that were most popular on the market. typically a 30 size machine used and 550mm rotorblades and included the hirobo shuttle, kalt baron 28, 30 and 30 mx. then in the 90's came the enforcer, xcell 30 and a few others.
the next size up were the 50 and 60's back then they were basically the same heli only with different size blades and boom, kinda like the 30/50 and 60 90 are today.
now today we have the 30/50 and the 60/90 helis.
examples of the 30/50 are the raptors, sceadus, hawk pros and ravens. they are basically the same heli only one use a 30 size engine while the other uses the 50. mechs are the same size. same deal with the 60 and 90's. same size mechs except for the length of the boom and blades.
as far as fuses go, century has 30 size, 50 and 60/90 size fuses. the 30 size machines of the early 80's are actually smaller physically than the 30 size machines of today for example the shuttle plus. its the oldest production heli period, i learned on one back in 1985. it is about the only one i would put in a 30 size fuse though. all the newer 30 machines are bigger and the fit in a 30 size fuse is kinda tight and goofy lookin.
anyway. the 60/90 fuses are basically the same, they will take 60/90 machines. the gassers are a next size up. the gass machines are usually wider in the frames than its 60/90 size brother and with the additional power while it can be a tight fit in most 60/90 size fuses, willlift your bigger fuses.
vario is a little different from the norm. seems all their fuselages are huge compared to most. i like putting a gasser in the vario 60/90 fuses ecause they fit well.
now as for quarter scale, that means the fuse is one fourth the size of the real one. you usually se these poweredby turbine mechanics(of which several are available) or bog electric setups. my buddy DaXXXll Sprayberry has a 1/4 scale jetranger thathe made his own electric mechs for.
withthe elec machines out there, the size is classed a bit different. they dont say trex 30 or trex 50 like the sceadu and raptors do, they say 600 and 700 and 250 etc. they use the blade length in mm to tell you what size the heli is. well we know by this that a trex 600 is basically a 50 size heli since a 50 size heli's typical blade length is 600mm. if there was a trex 30 size i imagine it would be a trex 550. you get the picture
most folks decide what size heli to build depending on detail desired, budget, ease of transporting and just desired size. i like the 50 and 60 size scalers. the 90 and gassers a great for loading up with detailing that makes it heavy cuz it will still pick it up and fly. the 50's are great for sport scale that you arent too affraid to fly like it was stolen (my airwolf is a good example of that)
my blackhawk is a 60 size fuse with an xcell 60 in it powered by an os 90. that sucker weighs a ton but it flies well and with lots of power for scale.
hopefully some others here will chime in with more explanations to help you understand more
drive a rotary, fly a rotorcraft |
