Page 1 of 2

Help with OMP Yak 55sp 65"

PostPosted: Mon Nov 16, 2020 4:58 pm
by SkrPlyr23
Rebuilt a crashed yak54 profile... looking for placement of landing gear and where to spot the cg. Could use a manual or some help! Thanks everyone !

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 5:07 pm
by Motowncali
Use a flashlight to look for landing gear holes just in front of the LE wing at the bottom of the fuse. CG, start at the tub and adjust to your liking.

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 5:11 pm
by SkrPlyr23
The plane has been rebuilt from tube forward, I have no holes to find ! I was hoping someone could give me a measurement from the tube to the bolt holes...

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 5:25 pm
by Motowncali
Hopefully when it was rebuilt, there were hard points added where the gear need to go. You don’t want them too far forward or back. This is the RadYak I just finished and this is where and I would put the gear. The gear should be angled forward about five degrees. Put a piece of tape on the fuse, draw a line square to the bottom. Hold the gear up with one hole in front of the line, top hole behind.

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 5:50 pm
by SkrPlyr23
Sounds good thanks for the help man. Atill kind of just guessing where to put it a little !

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 8:54 pm
by gus
SkrPlyr23 wrote:Rebuilt a crashed yak54 profile... looking for placement of landing gear and where to spot the cg. Could use a manual or some help! Thanks everyone !


Be patient and let me see if I can find the plans. I have a scratch built one.

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 9:02 pm
by Motowncali
Even though I just looked at these two days ago, I forget than Gus sent them to me...

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 9:08 pm
by SkrPlyr23
Thanks for the help fellas !!

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 9:11 pm
by SkrPlyr23
My wings attach with one center nylon bolt accessible thru the wing hatch... I think this is the right plan tho... close enough right??

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 9:17 pm
by gus
...

Re: Help with OMP Yak 54 65"

PostPosted: Mon Nov 16, 2020 9:18 pm
by gus
I guess Mo beat me while I was dicking trying to resize the pics

Re: Help with OMP Yak 54 65"

PostPosted: Tue Nov 17, 2020 4:50 am
by SkrPlyr23
Looks like I have the yak sp-55m, Not sure how the yak 54 sticker got on the rudder, but its coming off !

Re: Help with OMP Yak 55sp 65"

PostPosted: Tue Nov 17, 2020 7:48 am
by gus
Have that one too but never did anything since I didn’t like how the ARF flew.
It did have some 1/4 pieces of plywood glued to the fuse when I got it.
I’ll see if I can find the plans, unless Mo beats me again. :mrgreen:

Re: Help with OMP Yak 54 65"

PostPosted: Tue Nov 17, 2020 8:13 am
by SkrPlyr23
gus wrote:...


Hey what is the bolt and blocking midway down fuse

Re: Help with OMP Yak 54 65"

PostPosted: Tue Nov 17, 2020 9:10 am
by 3Dreaming
SkrPlyr23 wrote:
gus wrote:...


Hey what is the bolt and blocking midway down fuse


I would guess a mount for the pipe.

Re: Help with OMP Yak 54 65"

PostPosted: Tue Nov 17, 2020 11:01 am
by SkrPlyr23
3Dreaming wrote:
SkrPlyr23 wrote:
gus wrote:...


Hey what is the bolt and blocking midway down fuse


I would guess a mount for the pipe.


Affirmative

Re: Help with OMP Yak 55sp 65"

PostPosted: Tue Nov 24, 2020 8:03 pm
by SkrPlyr23
Still trying to find a good starting point for the cg....

Re: Help with OMP Yak 55sp 65"

PostPosted: Tue Nov 24, 2020 8:20 pm
by gus
SkrPlyr23 wrote:Still trying to find a good starting point for the cg....


Sorry, forgot about this, let me check.

Re: Help with OMP Yak 55sp 65"

PostPosted: Tue Nov 24, 2020 8:25 pm
by SkrPlyr23
I have figured out that I have the yak sp55m, not the 54 ! Previous owner had slapped on a yak54 sticker on the tail that doesn't belong !

Re: Help with OMP Yak 55sp 65"

PostPosted: Wed Nov 25, 2020 11:32 pm
by gus
Nothing on the plans, I’ll start at 40% of the root cord.
Doing some more research to see if I have the manual.