RE: GX45vs.DA50vs.BME50
 

I also have to agree with Barry. You shouldn't look at a 50cc motor on anything below an 80 inch wingspan. Maybe even 78" depending on how you want to fly but with a wingspan of 72" - you'd be better off going with a 26cc-40cc or sticking with a YS 1.40-1.60 glow.

The new Wildhare planes are very nice for 50cc engines. The new QQ 86" will be awesome on a 50cc engine.

72" though really is just too small for that size engine.

RE: GX45vs.DA50vs.BME50
 

Hi guys,
Thanks for the advice.

I think this is what I'm going to do:

I'm going to get the Nitro Planes Extra 300s and I think I'm going to power it with the OS 120 AX. 72.5" wingspan, and the kit calls for a 108-160 2 stroke, 120-140 4-stroke. Smaller gas engines are heavier and do not seem to have the power compared to the same weight in a glow engine. And that's significant based on the size of the plane.

I was wondering what everyone thoughts are on this combo....I've never had an OS motor that I didn't like, and I'm not worried about it running right, but I don't want to be trying to hover at full throttle either. So if I need to look at a larger or different motor, I'd like your suggestions.


Thanks in advance,
Mark

RE: GX45vs.DA50vs.BME50
 

Railinrob,

Tell me about your CAP 232g... What does it weight? What did you do if anything to lighten it?

I'm building one with a DA 50. I've invested a few $$$ to lighten it up. I should bring it in under 15.5lbs. With a wing area of 1,289 sq inches the wing loading should be @ 27.71 if my math is correct... I weighed everything and allowed for a couple ounces of epoxy. I'm still working to get it as close to 15lbs as I can. I might be able to get it down to 15.25, but the big weight reduction items have been dealt with. With that in mind, I have no intention of going to a CF Prop and Spinner. For now its a Menz 22x8 with a 3" TT Spinner. little heavier, but I'd rather beat up the cheap stuff first if I'm going to.

This is my first gasser also.

Larry

RE: GX45vs.DA50vs.BME50
 

My cap is stock with hs5955's everywhere and 1 hs925mg on throttle, 2 nimh's 1-1600mah 1-2700mah,2 jr hd switches, smartfly optical ign kill ,smartfly power expander sport ,and futaba sysnthesized rx. . It will pull out of my poor excuse for a hover with good power and climb till its a teeny spec pretty fast .I have not weighed it with an accurate scale but its lighter than a guys 17.8 lb aeroworks extra 260 at my field and a litlle heavier than my buddies Air wild extra 260 which is 15lbs even. You'll love it its a good plane .
Its my first gasser as well I have had for a few months and now All my glow planes are gone I was so sick of wiping al that nasty shmeg off the plane after flying.

RE: GX45vs.DA50vs.BME50
 

Mark I think that combo sounds like it will work good . That Os 120 should yank it around nicely . A guy at our field has one in a new funtana x100 and its easily got unlimited performance .