Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


Sig Akromaster build. Cox_ba12




Sig Akromaster build. Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Carl Goldberg Shoestring
by NEW222 Today at 9:22 pm

» Tank Cleaning and an Old Rant from my Youth
by Ken Cook Today at 8:24 pm

» Designing a Tee Dee RC carb
by dckrsn Today at 6:56 pm

» COX 049 Product Engine '76 - type confirm .
by balogh Today at 5:46 pm

» Home made fuel nipple for COX Tee Dee RC carb
by balogh Today at 3:56 pm

» Contest - Contest - Contest
by Admin Today at 2:42 pm

» COX TeeDee09 RC in flight with the Cosmic Wind
by balogh Today at 12:16 pm

» Fall S.M.A.L.L. Friday
by Kim Today at 10:33 am

» Big Brother
by NEW222 Yesterday at 3:18 pm

» Cox Engine Stories
by rsv1cox Yesterday at 7:39 am

» It's raining Cox engines
by rsv1cox Yesterday at 7:19 am

» Simple Baby Ringmaster build
by MauricioB Yesterday at 12:09 am

Cox Engine of The Month
October-2021
MauricioB's

"Babe Bee .049 r/c"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Forum Store
CEF Ear Savers
Gallery


Sig Akromaster build. Empty

Sig Akromaster build.

Page 1 of 6 1, 2, 3, 4, 5, 6  Next

Go down

Sig Akromaster build. Empty Sig Akromaster build.

Post  JPvelo Sun Nov 25, 2012 6:54 pm

Fed ex man dropped the kit off yesterday and I started gluing the preliminary bits today. I am going to go with the extended wing.
Initially power will be my sportsman .15 but I may want to switch to a fox .15 down the road.
Question for everyone out there:
Does any one have a sportsman and a fox .15 they can put side by side and compare the mounting pattern? This would be much appreciated. Thank you.
Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Cribbs74 Sun Nov 25, 2012 8:35 pm

Well, lets see some pics!!

I don't have a Sportsman anymore but I do have the instruction sheet with dimensions. I also have a Fox .15x of you want me to take pics or send data let me know.

Ron
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11667
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Sun Nov 25, 2012 9:42 pm

The only pics would be of the leading and trailing edge halves glued together. This build will be slow going as I will be working on it with my son when we have time.

If you could measure the mounting holes on the fox and see if they match up with the specs you have on the sportsman that would be great. If you could measure the distance from the front mounting holes to the front of the driveplate on the fox it would be much appreciated.
Thanks,
Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Mon Dec 30, 2013 6:52 pm

Finally dug this thing out and intend to finish it! Wing is almost done. I will be replacing the 1/2a bellcrank  the kits came with with an aluminum 3" item.
Sig Akromaster build. AgPS6uH
Want to hack it into a Piper Pawnee:
Sig Akromaster build. LYdcjUC
Will keep you posted!

Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Cribbs74 Mon Dec 30, 2013 6:59 pm

Jim,

I never saw where you asked me for that info. Do you still need the dimensions?
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11667
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  getback Mon Dec 30, 2013 7:31 pm

@JPvelo wrote:The only pics would be of the leading and trailing edge halves glued together. This build will be slow going as I will be working on it with my son when we have time.

If you could measure the mounting holes on the fox and see if they match up with the specs you have on the sportsman that would be great.  If you could measure the distance from the front mounting holes to the front of the driveplate on the fox it would be much appreciated.
Thanks,
Jim
Is this it for him Ron?
getback
getback
Top Poster
Top Poster

2019 Supporter

2020 Supporter

Posts : 8138
Join date : 2013-01-18
Age : 64
Location : julian , NC

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Mon Dec 30, 2013 7:33 pm

@Cribbs74 wrote:Jim,

I never saw where you asked me for that info. Do you still need the dimensions?
We're good, I went ahead and bought a Fox .15.

Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Cribbs74 Mon Dec 30, 2013 8:46 pm

I probably should have worded that better...

Yeah you did het a new .15, I see it now. Those .15BB engines are real screamers and very smooth. They do not 4-2 though.

I want one, but I am getting no love from Fox manufactuing.

Ron
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11667
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Tue Jan 07, 2014 11:23 pm

Made good progress today. Decided to go with the stock bellcrank and sheeted the wing.
Sig Akromaster build. N0DHW1v
When I epoxied the doublers over a year ago they slid, leaving a big gap at the leading edge.
Sig Akromaster build. DrqAMY3
My solution is to add 3/16 balsa "triplers" on each side. They also hide the seam where the addition meets the stock fuse at the doublers.
Sig Akromaster build. 7lSwQ8u

I decided the lines of the fuse lent them self to a turbo prop duster more than a Pawnee. My son likes this scheme, minus the razorback logo and with transparent red wing covering:
Sig Akromaster build. MrPLtGG

Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  OVERLORD Wed Jan 08, 2014 1:21 am

That transformation turned out well Jim. You didn't get any problems when removing those wing tips?

Lieven
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1646
Join date : 2013-03-19
Age : 55
Location : Normandy, France

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Wed Jan 08, 2014 9:11 am

@OVERLORD wrote:That transformation turned out well Jim. You didn't get any problems when removing those wing tips?

Lieven
Wingtips came off fine, going to replace them with 3/8 balsa "cap ribs". I am also toying with the idea of adjustable leadouts and a tip weight box.

Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Thu Jan 09, 2014 6:58 am

After I put the cheek blocks on I realized I didn't leave a way to install the landing gear. Came up with an easy fix:
Sig Akromaster build. Kgapy8p

I think I'm to the point of filling the fuselage, I will try Rustys' spackle technique followed by silkspan/polycrylic.

I don't know if I am going with sewn hinges or I may try actual hinges.

Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  RknRusty Thu Jan 09, 2014 8:12 am

Looks nice, I've never seen an Acromaster in real life. My LG on the Yak is similar and pondering ideas of how to secure it. I was also thinking of springing it with a rubber band somehow, since as a sport flyer it'll be more likely than my stunter to smack the gear at the bottom of some sort of spontaneous exotic maneuver. Maybe I'll invent a new dangerous trick... a Rustio. lol! 

Rusty

_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!


My Hot Rock & Blues Playlist
RknRusty
RknRusty
Rest In Peace
Rest In Peace

2019 Supporter

2020 Supporter

Posts : 10869
Join date : 2011-08-10
Age : 65
Location : South Carolina, USA

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Thu Jan 09, 2014 9:25 am

I have a sig twister on order at the hobby shop, I also have a fazer landing gear on order:
Sig Akromaster build. LMz6GIp

I plan on installing hard wood mounting blocks between the doublers. If I bugger the gear I can easily replace it. But that's  another whole build thread.

Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  roddie Thu Jan 09, 2014 9:48 am

@JPvelo wrote:After I put the cheek blocks on I realized I didn't leave a way to install the landing gear. Came up with an easy fix:
Sig Akromaster build. Kgapy8p

I think I'm to the point of filling the fuselage, I will try Rustys' spackle technique followed by silkspan/polycrylic.

I don't know if I am going with sewn hinges or I may try actual hinges.

Jim

Hey Jim, Any reason why these wouldn't work for you? The steel type I have used on several models.

EDIT- I use 2-56 machine screws/nuts I get from Radio Shack.. instead of the wood screws that come with them. This tightens the straps down nice and locks the gear into place.

Roddie

Sig Akromaster build. Landin10
Sig Akromaster build. Landin11
roddie
roddie
Top Poster
Top Poster

Posts : 7250
Join date : 2013-07-17
Age : 61
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Thu Jan 09, 2014 11:21 am

Roddie, if I could have found those metal ones locally yesterday I would have gone with them.

Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Cribbs74 Thu Jan 09, 2014 12:24 pm

Jim,

It's been my experience that the straps do work however they are not very forgiving and get stressed during anything, but perfect landings.

What you came up with is a good compromise as it will allow for a bit of absorption and will not fully collapse like the Goldberg series of models.

Another option would be 2 piece wire gear that attaches through the fuse with a collar. It looks just like a solid wire except it allows for removal with destroying the wing/fuse.

I have pictures if interested.

Ron
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11667
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  JPvelo Thu Jan 09, 2014 9:54 pm

Ron,
I would like to see pics of that system.

Thanks,
Jim
JPvelo
JPvelo
Diamond Member
Diamond Member

Posts : 1962
Join date : 2011-12-02
Age : 53
Location : Phoenix

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Cribbs74 Thu Jan 09, 2014 10:04 pm

Ok Jim,

Check back tomorrow. I will post pics then.
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11667
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Cribbs74 Fri Jan 10, 2014 8:55 pm

Here ya go Jim,

I wasn't in the mood to take things apart, but I drew a picture and took a picture. If you can't see what's going on I will take it apart.

Sig Akromaster build. 5yKZytul

This is what it looks like in place. I used square tube as it's stronger than the round stuff. I would insert a hard wood plug in the fuse and drill the hole through it. I didn't and wish I did.

Sig Akromaster build. E1p2QJ7l
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11667
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  batjac Fri Jan 10, 2014 10:41 pm

Well, I'm going to have to keep track of this thread now. I spent all my Christmas money on C/L stuff, and one of the things I ordered was an Akromaster. I bought one back in '82, but never built it. I scavenged the wood out of it 20-25 years ago. So, on a wild hair, I ordered another one to actually build this time, as the Akromaster was "technically" the first balsa C/L plane I ever bought. Was thinking of putting a Medallion .15 on it. Would the Medallion .15 be enough for this plane? UPS says it should be here on Monday.

The Technical Mark
batjac
batjac
Diamond Member
Diamond Member

2019 Supporter

2020 Supporter

Posts : 2006
Join date : 2013-05-22
Age : 58
Location : Portland, OR, USA

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  duke.johnson Fri Jan 10, 2014 10:49 pm

I don't know about the Cox 15, but the fox 15 and OS 15fp's and LA's are great. Some guys run OS 10LA's in them. It was our first real plane. My oldest son and I both built one. Great little planes. I have a kit in the closet and my daughter is building one, STILL. I want to make my next one electric.
duke.johnson
duke.johnson
Diamond Member
Diamond Member

Posts : 1734
Join date : 2012-11-05
Age : 50
Location : Rochester, Washington

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  RK Flyer Sat Jan 11, 2014 12:57 am

@batjac wrote:Well, I'm going to have to keep track of this thread now.  I spent all my Christmas money on C/L stuff, and one of the things I ordered was an Akromaster.  I bought one back in '82, but never built it.  I scavenged the wood out of it 20-25 years ago.  So, on a wild hair, I ordered another one to actually build this time, as the Akromaster was "technically" the first balsa C/L plane I ever bought.  Was thinking of putting a Medallion .15 on it.  Would the Medallion .15 be enough for this plane?  UPS says it should be here on Monday.

The Technical Mark

Hello Mark,
I was at the Jan 1st Fun Fly in & talked with Duke about the Akromaster soooo I found one at Ted's H.S. in Portland. I haven't started building yet so maybe we can compare notes. I plan on using my Enya 15.

RK Flyer
RK Flyer
RK Flyer
Gold Member
Gold Member

Posts : 270
Join date : 2013-07-16
Location : Somerset, Kentucky

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  RknRusty Sat Jan 11, 2014 3:27 am

I can't imagine a Tee Dee .15 being any less powerful than any of those others. But unless it's a .15 Special, that's the one that had piston seizing problems if I recall correctly.

Rusty

_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!


My Hot Rock & Blues Playlist
RknRusty
RknRusty
Rest In Peace
Rest In Peace

2019 Supporter

2020 Supporter

Posts : 10869
Join date : 2011-08-10
Age : 65
Location : South Carolina, USA

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Cribbs74 Sat Jan 11, 2014 8:22 am

The Cox .15 would probably do just fine. Problem would be it weighs less than the others.

Ron
Cribbs74
Cribbs74
Moderator

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 11667
Join date : 2011-10-24
Age : 47
Location : Tuttle, OK

Back to top Go down

Sig Akromaster build. Empty Re: Sig Akromaster build.

Post  Sponsored content


Sponsored content


Back to top Go down

Page 1 of 6 1, 2, 3, 4, 5, 6  Next

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum