scratch built c130
11-22-2007, 05:17 PM
#1
Thread Starter
Join Date: Apr 2006
Location: knoxville,
TN
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
scratch built c130
anyone building a c130 fro scratch as i am.....mine is 13'6" ws.. planning 4 os 65's for power. with syncro, and plug drivers....body about done.wingd 30%.... comments anyone.
02-18-2008, 05:31 PM
#8
Thread Starter
Join Date: Apr 2006
Location: knoxville,
TN
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
RE: scratch built c130
the plans are from a 1956 set of control line plans.. it was 6 foot. and i had them inlarged to 12 foot plus.. so iam using the outlines and going from there on putting it together. its getting big and heavy...
03-02-2008, 10:31 PM
#10
Senior Member
My Feedback: (3)
Join Date: Dec 2003
Location: Hendersonville,
TN
Posts: 924
Likes: 0
Received 0 Likes
on
0 Posts
RE: scratch built c130
John,
Your numbers make me worry that my built-up AC-130 will be heavy. I would have thought you foam construction would have been very light. Personally, I'm hoping for a 40lbs target weight-dry. I will have to be very light when I glass my project to prevent any excessive weight.
DO you think you .65s will be enough engine? You might need to jump into the .90 motors if it gets too heavy.
Mike
Your numbers make me worry that my built-up AC-130 will be heavy. I would have thought you foam construction would have been very light. Personally, I'm hoping for a 40lbs target weight-dry. I will have to be very light when I glass my project to prevent any excessive weight.
DO you think you .65s will be enough engine? You might need to jump into the .90 motors if it gets too heavy.
Mike
03-04-2008, 05:53 PM
#11
Join Date: Aug 2005
Location: Mississauga,
ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like
on
1 Post
RE: scratch built c130
ORIGINAL: longflyer
weight the plane.. body in pics 19 lbs
wings 4 lbs each
center section 3 lbs
total 30 lbs so far.. est finished 50 to 60 lbs
john
weight the plane.. body in pics 19 lbs
wings 4 lbs each
center section 3 lbs
total 30 lbs so far.. est finished 50 to 60 lbs
john
If there is a possibility, try to make new wing cores from white foam also, this will cut down more weight and plane will fly better. Only parts i made from blue foam is the tailplane section and that is only due to 3 fins only as i needed alot of strength there.
Are you planning to balse sheet the wings and fuselage or just glass it directly?.
03-06-2008, 10:44 AM
#12
Thread Starter
Join Date: Apr 2006
Location: knoxville,
TN
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
RE: scratch built c130
planning to glass body and wings.. tail is going to be fabric covered.. auto paint for finish maybe.
the spars in the wings are carbon fiber.. just like the windrose that i built with 50 foot wings.. maybe i will have to go to 90s... i'll 65's first.
the spars in the wings are carbon fiber.. just like the windrose that i built with 50 foot wings.. maybe i will have to go to 90s... i'll 65's first.
03-06-2008, 10:52 AM
#13
Thread Starter
Join Date: Apr 2006
Location: knoxville,
TN
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
RE: scratch built c130
forgot to add
the foam on the body is only a inch thick in most places.. the formers were lightened
so the body is pretty hollow. tail surfaces are on the heavy side... thats why all the holes.. took off about 2 lbs.. i'm going to have 3 battery packs and motores are ahead of cg.
the foam on the body is only a inch thick in most places.. the formers were lightened
so the body is pretty hollow. tail surfaces are on the heavy side... thats why all the holes.. took off about 2 lbs.. i'm going to have 3 battery packs and motores are ahead of cg.
03-06-2008, 07:25 PM
#14
Join Date: Aug 2005
Location: Mississauga,
ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like
on
1 Post
RE: scratch built c130
Do you know what resin will you be using for the glassing, i would still make new wings if possible. that is going to be very heavy model, what is your wing loading going to be?
03-24-2008, 05:21 AM
#16
Join Date: Dec 2003
Location: manchester, AE, UNITED KINGDOM
Posts: 1,795
Likes: 0
Received 0 Likes
on
0 Posts
RE: scratch built c130
is it me, or do the wings have a slight anhedral? is this the weight of the foam itself? this makes me ask is the wing spar design up to having 4 engines mounted, with all the associate plumbing, electrics, wiring etc? may i suggest a load test, to establish this? how thick is the carbo spar at the moment? re the empennage, is that solid balsa, or sheet on frame? sorry about all the questions, better to get it right now, than at the field 
04-11-2008, 12:35 PM
#18
Thread Starter
Join Date: Apr 2006
Location: knoxville,
TN
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
RE: scratch built c130
the carbon fiber spars are 1/2 inch by 1/4 inch tapering to the tip.. the wings will be st8 on top side ... only had one bolt in the spars to take pics. the body is stringers and foam.. i now have everything glassed.. doing the the tail in 1.7oz dacron... one primer coat on and started sanding... i'm planning two coats of primer.. most of it will be sanded off.. maybe auto lacquer for finnish,, not decided yet.... working engine mounts at present.
08-14-2008, 06:48 PM
#22
Thread Starter
Join Date: Apr 2006
Location: knoxville,
TN
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
RE: scratch built c130
ok guys here are the lastest pics..
1 is the elec
2 is the main wiring from wing, total used 130 feet
3 pipe is exhaust from motor... muffler modifyied so it is behind motor in the nacel.
4thru.. misc photos.
1 is the elec
2 is the main wiring from wing, total used 130 feet
3 pipe is exhaust from motor... muffler modifyied so it is behind motor in the nacel.
4thru.. misc photos.