RCU Forums - View Single Post - Official GP Reflection Build Thread!
View Single Post
Old 08-27-2005 | 08:34 PM
  #26  
bdavison
Senior Member
My Feedback: (1)
 
Joined: Aug 2004
Posts: 3,360
Likes: 0
Received 0 Likes on 0 Posts
From: Warner Robins, GA
Default RE: Official GP Reflection Build Thread!

Ive built tons of biplanes. Everything from Tensor4D, Nikitas Rebel, etc. Up till now, Ive not seen one single biplane kit that actually had the wings affixed well enough to keep them from wobbling, shifting, or twisting, popping off, or completely destroying the airframe in a hard landing.

Most of the biplane kits Ive built up to this point will absolutly explode unless your landing is very smooth. Problems exist from yanking the landing gear through the wing, to de-mounting the wings from the fuselage, etc. The other problem is that if you make repairs to most of the other biplanes, its very difficult to get them straight again, and normally they never fly the same again.

The guys at Great Planes have come up with a fantasticly simple, lightweight, and very strong and stable system of reinforcing the wings. Their are two carbon hollow tubes that cross through the fuselage and are joined to the wings. Now there are plenty of other planes out there that have a simular system of bracing, but the Reflection has something new. They have these angled tube braces that fit into the wings, and the fuselage. Once you get everything squared up you hit them with CA, and the whole thing is locked in.

And I do mean locked in. Its ROCK solid. Not only that but if you CA the angled tube braces to the carbon leading and trailing edges, it will keep it from yanking the landing gear through the wing on a rough landing. (I really hate that. I had a brand new Tensor that did that....**** me off)

Theres no carbon spider web like the tensor needs, theres no kevlar thread that you cant get tightened or its tightened to much and warps a wing. Just four simple carbon rods.

Compared to the other biplane kits, this thing is really well designed.

The fuselage is a little tricky to put together. There is a main center carbon tube that runs through the middle of the fuselage. You construct the fuselage around this carbon rod. Its kinda complicated to get everything squared up. They did add these little square mounts that help out in squaring up the fuselage, but you cant lay it flat on a table like you can most other planes because the square mounts and the servo trays stick down. I have a little jig that Ive used for a while now. It works on just about any shocky, Ill post some pics of it if you want, but it makes it much easier to square up just about any foamy.

The reflection also has some pitch gauges included for setting your control surface throws. A real nice addition.

The prop that comes in the kit is also a very rare and superb prop. With swept tips. Ive seen props like this on some of the nitro pattern planes, but I didnt even know they made them for electrics. Im hoping to see more of them showing up someplace. I would really like some 9x3.8 props like that. Ive seen some of the aerodynamics testing on these "swept" tip props, and they create a very super concentrated and stable propwash that make a really tight cone. It increases elevator and rudder response due to increased and stable airflow being forced over the tail surfaces. If anyone knows where I can find some of these in 9x3.8 or 8x4.5 I would GREATLY appreciate it.

Once the Reflection is all constructed, its a really solid airplane. Real solid. And the real kicker is even though is super reinforced, its still light enough to fly like it should. Its not shockflyer light, but it real close.

If you build it light and dont soak it down in CA or glue, you should be able to get it out around 7oz or so. I haven't weighed mine yet, but Im hoping to be around 7.5 -8oz or so. Which is light enough to fly indoors in my local gym.