RCU Forums - View Single Post - GB Extra 300
Thread: GB Extra 300
View Single Post
Old 04-28-2009 | 09:40 AM
  #27  
Cyberwolf's Avatar
Cyberwolf
Senior Member
My Feedback: (4)
 
Joined: Jan 2004
Posts: 2,251
Likes: 0
Received 0 Likes on 0 Posts
From: Blackfoot , ID
Default RE: GB Extra 300

Its stopped snowing but the rains coming down so not much chance of flying today.So here we go with the fuse part of the build.

I started with the firewall typical 2 piece thats joined together with epoxy.
Nows the time a person needs to decide on what engine there going to use , since I don't know I will omit the part about the engine mount and go on .
I then found the formers D,E,F and the slant former and added the 1/8x1/2 inch balsa doublers as shown in the manual.
I then found the fuse sides and punched out all but the front lightning holes. I glued these in place to add the extra strength needed if a larger engine is used.

I then glued the fuse doublers to the sides making sure I made a left and right fuse sides. Now comes the part thats a little tricky and hard to see in the pics but I omited the original landing gear plate and added one of my own on a slight angle towards the front of the fuse , this will help nose over if the plane has the larger engine or flying from grass.
I omited the landing gear triplers.

Next I Tapped the fuse together at thr rudder post with a piece of 3/16 scrap in between
Useing no glue just rubber bands and tape I added the formers starting with D then E and F.

I then added the fuse top ,You may need to loosen the tape to get the fuse top in place, then I added the slant former.
I then turned the fuse over and slid the fuse bottom in place.
Tapeing and rubber bands is all thats holding things together at the moment.but it allows me to see if I have a good straight fuse by laying it over the plans to check. If everything I good I will then glue all the seams with med CA, but only after I tack glue it in several places to make sure it stays straight while glueing the entire fuse.

Ok nows a good time to add that landing gear plate I made I made it 1-1/2" wide buy about 7" long the extra length will be cut off later.
The original plate is not this wide and the bottom nose cover will need to be cut down and sanded on a angle in order to fit good, Also the fuse sides will need to be modified for the gear plate to fit.
I used epoxy to install the gear plate then added 3/8 tri stock to the insides of the fuse ,I also added the former C to the gear block,making sure it leaves room for the bottom nose cover to rest up agaisnt the gear plate and former C to tie it all together.
I then added the former B and firewall but have not glued then in place yet.
I hope you can see the gear plate and angle in the pics.

Hint Making any mod to a kit build ,can change the order a little of how they have it laid out. Nothing to worry about just don't forget anything .
Attached Thumbnails Click image for larger version

Name:	Xv65230.jpg
Views:	30
Size:	53.8 KB
ID:	1188399   Click image for larger version

Name:	Pk30436.jpg
Views:	40
Size:	47.8 KB
ID:	1188400   Click image for larger version

Name:	Gl20662.jpg
Views:	36
Size:	52.5 KB
ID:	1188401   Click image for larger version

Name:	Zt52542.jpg
Views:	28
Size:	54.5 KB
ID:	1188402   Click image for larger version

Name:	Sd43618.jpg
Views:	24
Size:	59.3 KB
ID:	1188403