KnoxHobbies 88" yak-54

[rcpilot82]

Anyone got one? I picked one up at Joe-Nall last week and figured I'd see if anyone has built,flown this thing. It looks good so far. Post building tips and experiences here!!

[rcpilot82]

bump

[rcbirk21]

I dont have one but have talked to dwayne from knox a lot. easy to get in contact with, seems like a great guy. let us know how the plane turns out

[rcpilot82]

Will do, I don't know if I will do an "asembly" thread or not yet. I would love to see someones setup on this plane and a report of it's flying.

[mikel7099]

Talk to Kitman on here(FG moderator) . Great guy and was flying one at Nall. The Yellow and Black one on display with the Flying Giants decals was his . I was thinking about buying the one like that but it was like $670.00 with the decals .

[RC_Pattern_Flyer]

Greg was flying the 85" version... the 88" is a different animal.

Yes, they are the same BUT different.

If i can smap some pics of a local pilots 88" I will drop them in here.

Thanks

Chuck Hochhalter
Team Knox Hobbies

[mikel7099]

	Quote: Originally Posted by RC_Pattern_Flyer
	Greg was flying the 85" version... the 88" is a different animal. Yes, they are the same BUT different. If i can smap some pics of a local pilots 88" I will drop them in here. Thanks Chuck Hochhalter Team Knox Hobbies

Ok sorry .

[rcpilot82]

OK, I have ordered most of what I need and this will be my setup;

Engine: DL-55
Prop: Vess 22a
Fuel tank: 3w
Kill Sw: 42 percent opto kill
Batts: (2) NiMh 6v 2100mah, (1) NimH 4v for ignition from batteriesamerica.com
Redundancy: 42 percent 2-pac battery sharing system
Switches: MPI style from knoxhobbies.com
Servo extensions: knoxhobbies.com
Servos: Hitec 645-mg (ailerons,elev) HItec 7 (can't remember #) for rudder
Rx: undecided on futaba 72pcm or 2.4
Isolator: would like to find an I4c

I hope to start the build next week.

[RC_Pattern_Flyer]

Can't wait, keep us posted!

Chuck

[rcpilot82]

OK! I started the build tonight. I'll post some more pictures and explinations tomorrow, as I am headed to bed now. Stay Tuned!! here are a few teaser pics.

[rcpilot82]

First thing I did with this bird was to try and put the gear on. I ran into a few issues here, first there were no main gear mounting screws to go into the metric tapped angles and blind nuts. No problem there, just drilled for new american bolts and installed as usual. Second issue I ran into is that the tail wheel mount is recessed into the fuse, which is nice, BUT, the supplied tail gear was too long to fit into the recess. agin no big problem, just a cut on the bandsaw and round the edges with the grinder.

Next item was to start assembling the tail feathers. this went very easy with the supplied hardware and some common sense. when it was time to mount the horiz.stabs to the fuse I had two issues, first was that there was no hole to run the servo wire into the fuse, and second, the tabs that hold the stab on were too big for the precut notch in the stabs. both of these were easy fixes but took some time to evaluate the best approach.

I must say that despite the issues I have come acrost I still am happy with the purchase, and am not "b!t$hing" at all. I then proceded to mount the engine. I am running a DL-55 and it bolted up nice and easy. I am going to go over the firewall with glue and pin the firewall for added strength.

My next issue that really got my attention was the fact that the wing retention is by rubber bands. I do NOT like this, so I am going to drill out the wings and install a 1/4-20 blind nut to accept the new nylon retention bolt. to make this work I will have to make a ply plate to mount in the fuse for the bolt head to seat on. this is an item that should be addressed my the mfg. in my opinion. more on the new wing mounting system later.

That's as far as I got last night, hopefully I can get some time to work on it tonight or this weekend.

[rcpilot82]

few more

[robertp17]

I could be wrong here and if so you can call me a and tell me to shutup but the middle picture that you just posted looks to me like the servo needs to be rotated 180'. Your arm is exactly strait with the servo at neutral. If your going for 3d throws I would think you would want it offset a bit so you can get max deflection when the arm is at 45'. JMO Ok i will shutup now. :7aa:

[rcpilot82]

I would think so also, BUT, since there is no manual with pics or anything, I actually tried both ways. The servo will give max deflection in either position, but mounting at 180deg. creates a problem with the servo wire. the wire has to pass under the servo due to the construction of the stab, and will not let the servo sit flush on the mounting tabs. given that condition I chose to mount as shown. good catch, fortunatly I caught it also. don't shut up if you see anything I would rather catch it now instead of on the maiden flight.

I was able to mount the rudder servo tonight and hook up the pull pull system. It went smoothly as I knew in advance I was going to have to re-engineer the mounts to make my servo fit. (hs-5745)

[Doppelganger]

I like the pocket hinges. But rubber bands on a 50ccer? Thanks for sharing.

Steve