RCU Forums - View Single Post - Sig Somethin' Extra Build Thread
View Single Post
Old 06-20-2006 | 09:14 AM
  #169  
go-kartowner's Avatar
go-kartowner
Senior Member
 
Joined: Jan 2006
Posts: 163
Likes: 0
Received 0 Likes on 0 Posts
From: Columbia, SC
Default RE: Sig Somethin' Extra Build Thread

The engine is a GMS .76. And Ihad looked at that razor plane but by the time they shipped it I would be done. I'm goingto the hobby shop thursday to get a heat gun and I will see if they have one there. As i type I am waiting for the turtle decksheeting to dry. The sheet I got is 3/32"x4"x36" due to the lack of width I am having to make large fillers for the gaps on either side. Actually I just thought of another way I could have done it. Take two sheets and glue together longways so you have 3/32"x8"x Whatever the length it needs to be. Arghhhhhh...I wish I'd thought of that earlier. Also for breakin the manuel siad to use the same size prop you will be flying. I ran afew tanks of fuel through it at a rich setting and then tuned the neddle valve for max power wich was slightly leaner but not too lean. This engine has a massive amount of power!! I have a table that has a piece of plywood on the top with a 2x4 screwed to the bottom of the plywood. The 2x4 is clamped in a vice type thing on 4 legs. It is quite sturdy and my engine test stand is on it. I clamped the2x4 in extremely tight and started the engine. It is so powerful it actually pulled the plywood out of the vice and almost flew away!! I would not be suprised if the plane had unlimited vert at half throttle! I had to lengthen the firewall holes to mount the engine mounts due to the engines width. It has about 2mm clearence on eather side. I hope the plane isn't too twitchy with my massively enlarged control surfaces and hugely huge engine! depending on how fast I can cover (read: how much determination I) have I am looking at a maiden in two weeks. I will be working on it a few hours each day. Well, I have to go carve fairing blocks.
Karter