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Discussion Starter · #1 ·
Been trying to find a kit for ages, no luck, so after so rudely ignoring all your advice, I decided to listen and scratch build my own.

This is totally from my own head, and is taking shape as I go. Only had basic outlines on printer paper, but taking from many tried and tested designs over the years including the moass 60 I loved. Looks like it will work at this stage
 

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Cool!! Design/build is always a fun project. Fun to see if it flies like you planned. I always look forward to the maiden, see how it does. Hope it goes well :rockon:
 

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Discussion Starter · #6 ·
Yeah tail surfaces are a little on the small side now I've assembled it all. Was wanting to keep them from being too big to keep weight down at tail and allow use of smaller lighter servos not having to drive big surface areas. I will see how it goes as is, as its very easy to make larger moving surfaces at the back. My previous design had surfaces that were a little on the large side:

 

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Looks nice!!
 

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Discussion Starter · #11 ·
Test flight today, cg too forward and stab too small. Ripped old elevator off once I got home and am making a new one. Will also shorten nose to move cg aft
 

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+1!

I like the size of that elevator!
 

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It looks great.

I'm by no means one of the great designers around here, but I hope to think that I've learned a bit by hanging out with them..
I think your plane there will fly really good. The problem is that good is the enemy of best. I'm afraid with all of the area you have above the center line on the fuse that you will have a pretty good amount of coupling with application of rudder. Your plane looks great, but you have a LOT of area above the center line. An ideal situation is to have an even amount above and below the center line. This is why some of our newer, amazing flying slabs, have an odd shaped fuse. This is to have equal amount of area above and below the center line virtually eliminating coupling / wing rock.

Judging how you built this plane (very fast) I'm guessing you will be doing a lot more builds. :tu: :tu: On the next one try to equalize the area above and below the centerline more. You will end up with an even better flying slab.
 

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Discussion Starter · #18 ·
Actually the photo doesn't help, it's actually exactly the same area top and bottom, was designed so. Lots of area you're not taking account of at the front below the motor which there isn't above which evens out total area with behind the wing being a little higher :) Been designing and Building for 20years, mainly foamies, but a few profile and funfly designs. Really appreciate the ideas and help though! Most things I've learnt are from top individuals like yourself :D

Just did its re-test flight was larger tail Surfaces and this thing is damn fun! I'm getting the rudder flips I wanted (large rudder with lots of fuse area around centre of mass and skinny area in from of fin) new exhaust I got from Tim has transformed the 55ax into better than some electrics I've flown!

Here's a video of the second flight

 

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AmpEater said:
Actually the photo doesn't help, it's actually exactly the same area top and bottom, was designed so. Lots of area you're not taking account of at the front below the motor which there isn't above which evens out total area with behind the wing being a little higher :) Been designing and Building for 20years, mainly foamies, but a few profile and funfly designs. Really appreciate the ideas and help though! Most things I've learnt are from top individuals like yourself :D

Just did its re-test flight was larger tail Surfaces and this thing is damn fun! I'm getting the rudder flips I wanted (large rudder with lots of fuse area around centre of mass and skinny area in from of fin) new exhaust I got from Tim has transformed the 55ax into better than some electrics I've flown!

Here's a video of the second flight

Well done!! Awesome flying :rockon:
 

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AmpEater said:
Here's a video of the second flight

Wow!! Fantastic flying!!!!!! My favorite part was the KE circles :tu: :tu: :tu: :tu: :tu: :rockon: :rockon:
 
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