RE: Its Here!! Double Vision
 

Yep... bellcrank...

These days I'd probably just run a rod out one of the nostrils if I had a straight enough shot...

RE: Its Here!! Double Vision
 

I like it,you can tell spectators its the knipplin pin,it operates the franistat.

RE: Its Here!! Double Vision
 

I'm a little leary of how the standoffs&engine screw onto the firewall,it seems like there is a higher probability that the screws could come loose, I use locking nuts on the inside of firewall for glows,but cant use them here. I dont trust locktite alone to hold the engine either. How does this arrangement hold up to vibration&shaking?

RE: Its Here!! Double Vision
 

It does a lot better than you think... mine never had an inkling of loosening... That is with blue locktite on the both ends of the standoff...

Noe the SUPPLIED standoffs are stright drilled and a single bolt goes through the entire standoff into the firewall and intot locknuts or blindnuts...

I suppose if you wanted to you could drill out the standoffs and use long 1/-20 or 10/32 bolts...

But this type of standoff is used with just about every DA50 install with no real issues

The thing with loctite is that noone gives it ample time to setup, or they remove and re-install a time for two without reapplying.

Snug the firewall bolts up and tighten them no further... tightening them later will "crack" the strength of the loctite...

Other than that I've used these tye standoffs on just about all my installs with no issues... (excpet once ewhen I FORGOT to loctite the firewall bolts... DOH!) Fortunately the flightline gods were kind that day with no problem but a clean deadstick landing... this wan't on the DV btw either)

RE: Its Here!! Double Vision
 

Just a note on the 2.5" stand-offs. I read a post that someone sent to Chip Hyde about using 1.5" stand-offs instead of his recommended 1.25". He strongly recommended against it stating that it would change the flight characteristics of the plane. I am not too sure that 1/4" would, but 1.25 might. You may want to check with Chip on that.

RE: Its Here!! Double Vision
 

The original standoffs recommended were 1.25"

The New scheme and SE's were slightly modified (wings pulled back 1" I think he told me among a few other things) and standoffs supplied with the SE are 1.5"...

Using 2.5" standoffs will increase that by 1"... will it change the charateristics? I dunno... doesn't seem like much if any... though it might require moving the CG foward 1/2" to make up the difference...

RE: Its Here!! Double Vision
 

It shouldnt change the way it flys much,3/4 to 1" isnt that much on a 84" fuse. The thrust angle stays the same,I just wondered how critical the CG is on this bird. I actually drilled out one standoff last night,there is about 5/8" solid center,I thought the drill was going to burn up, so I didnt do any others. (its a 20yr old Skill so I figured not much of a loss). I might as well do another and then I'll have 2 with long bolts & lock nuts for confidence,I'll do the other 2 the conventional way,thats good quality aluminum(hard)!

RE: Its Here!! Double Vision
 

Dumb question, do you cross the rudder cables or not? just from what I can barely see, it looks like they need to be crossed......but its pretty difficult to see down the fuse.

RE: Its Here!! Double Vision
 

yep, i cross mine.

RE: Its Here!! Double Vision
 

Anybody have trouble with the CF stab tube? I drilled through the stab and tube, then set a servo screw in it. I pulled it back apart to work on the linkage and noticed the tube was split from the hole to the end of the tube. Ever noticed this problem? I was just thinking about plugging the ends with a short piece of wood to strengthen it and give me a little more meat to screw in to.

RE: Its Here!! Double Vision
 

Yep,i did the same thing on the stab tube and wing tube,after i drilled the hole i set a piece of ply in the tube just to give the screw something to bite into.
ENJOY!

RE: Its Here!! Double Vision
 

Never checked mine... but that's certainly a good fix... find a dowel and epoxy it in place...

RE: Its Here!! Double Vision
 

Got to have wood in there,2 threads is not enough for me! Getting back to my DV,was on hold for 2 weeks while building the Velox and trying to remedy the CA I got into the throttle arm--I know--dumb ass--doh!!!!

RE: Its Here!! Double Vision
 

For me... it's not the threads in the dowel... but it threads tightly through the hardwood block... it going into the CF tube "as is" is really just a "pin" to keep it from sliding out... the the trheading/tigtness int he hardwood block is what keeps it there.

Yet still adding a couple plugs for the screw to go into won't huet a thing and add that much more for the screw to bite into...

RE: Its Here!! Double Vision
 

Getting close,just a few things left to figure out,I havent yet figured out HOW I'm going to connect the upper/lower ailerons but I did get the push rods set up to the 5955's. The servos are set in way too deep for 1" or longer horns, I had to block them up 1/4". I used the HD arms that came with 5955's and Dubro Monster ball links which raise the push-rod height another 1/4". I went with extra HD connectors because I'm moving twice the normal surface area with the 1 servo. The placement of the elevator servos is kind of odd too,they look like they are to high in relationship to the stab and recessed too deep in to line up parallel to fuse and hit the hardwood horn plates (in the center anyway). I can see where people were having problems with binding if using the supplied horns. I think I'll get by using Dubro ball links & screw horns,they allow for motion in 2 axis, & they are fully adjustable. It looks like the push rod is angled away from the fuse to center in the hardwood plates,with these offsets& angles I dont see how the supplied hardware was of any use,those aluminum horns do not allow for any twisting or angular motion of the push rods. The screw horns seem to tighten up well to the inlaid hard plates,I usually use dowels here but the plates are on top&bottom & seem strong enough.
Its almost Spring, do we have worm signs Maudib?(& are you the Quisach Haderack?)How are the Harkonens treating you?

RE: Its Here!! Double Vision
 

It all sounds good Mix... Do you have the capability to share a pic or two?

On the linkage... the ailerons did bind unless you "split the difference" as I showed in an illustration a while back, but the elevators though had no binding at all as they rotated in the same plane as the servos...

Still balllinks do provide a very solid connection for somewhat offset geometry...

Have you confirmed if there is material between the plates? I recall Chip saying that the small screws used to hold the horns in place were plenty good, because there was "no more material for them to grab to anyway" leading me to believe it's hollow between the hardpoints... If so, be careful not to compress them or better yet get up in there and block between them.

We have wom-sign! Time to fly, fly fly... as it is the SPICE of life... :)

RE: Its Here!! Double Vision
 

Yes, it looks like its hollow but when I tightened up the screw horns I didnt see or feel any compression,it looks pretty strong to me,worse case,I could install hardwood dowels for the screws to pass thru. I inserted a 1/8" spacer in the back of each elevator servo to angle them better for lining up with the hard points,I didnt want my horns on the edge of the plates. Its coming along,just need to order batteries & a good pull-pull system,I might go with No- BS 3600 mah NIMH for rcv,2700mah for ignition,I like the sound of those "HR"(high rate) packs with low impedence,they are supposed to have more capacity than the standard packs,we'll see.
So maybe you've seen Dune? is that where you got your RCU name from?

RE: Its Here!! Double Vision
 

Yeah I spaced the end of the elevator servos as well.. btu because mine were JUST touching inside... by default that must have helped... :)

I also think I used ball links on all the servo arms and that too helped to eliminate binding...

On the handle... long story short... I've played online games for many years and played a LOT of Quake 1 in the day... abck when 56k was blazing fast and cable modem was the Holy Grail... :)

Anywho has just seen Dune and Liek the character name... but I misspelled it... and I was Mordib for nearly 15 years and many kept spelling it Morbid... so I finally cvhanged to Maudib... only to find out thAT that WAS WRONG... TEE HEE... I guess the correct spelling is Mua' Dib...
Oh well... in another 15 years I might have to change it again... ;)

RE: Its Here!! Double Vision
 

I'm getting down to the final steps,I put the wings & stab on to check incidence,very nice, almost 0/0/0 on everything. The top wing is +.5 degree off, but that is close enough for me. The stab was right on,perfect,0 to the bottom wing and thrust line. I had to see if the damn thing would fit in my Honda CRV,it does, so I glued the stab rather than mess with screws & such. I also going to hold the bottom wing on from inside the fuse using 1/4-20's and an extra stud with a cotter pin(fail-safe),set-up should be easier but it looks like you have to put both top&bottom wing halves on together with the strut attached,there's not enough movement to allow the struts on after putting the wings on. Not bad for bipe though,only the top wing will need the wing tube screws. I checked out the weight minus tank,batteries,ignition & push-rods:16 lbs, so I figure it will be 17.something when done. The DA 50 should be able to haul that around pretty good.(25-30lbs thrust I think)

RE: Its Here!! Double Vision
 

Mixmaster
those batteries will be fine,i use 2500 5 cell AA nimh,i get at lease five 10-15 min flights and it only drops down to 6.4 volts thats with eight servos.my top wing was the same as yours,flys great! you gave me a heart attack when i skimed over your last post it weighs 16 lbs.!!!!!
i am rite at 17lbs. with mine.
ENJOY!

RE: Its Here!! Double Vision
 

Dont forget, 16lbs MINUS batteries,tank,ignition,rcv & pushrods. I'm flipping out over battery performance lately,even my glows with 2700mah Nimh are only giving me 4-5 flights on new Sanyo packs. I fly for near 20 minutes/flight though and have been doing rolling harriers until my thumbs fall off, maybe that's where the energy goes? Anyhoo,looking at weight savings,going with Li-ion would save me a few ounces,I'm not ready to make the switch yet for a few ounces. One thing has changed,I started using a Futaba tester which uses 1000mah load,instead of 500mah with my old tester, maybe 1000mah is too much? (for a glow plane anyway)

RE: Its Here!! Double Vision
 

1 amp load isn't much... your plane will draw more than thst just ssitting on the ground at neutral...

It's really a test as a battery will read high voltage until there is some draw on it.... then it can drop signifcantly if the battery is low...

RE: Its Here!! Double Vision
 

Hello Guys,

Would anyone have spares for a DV old version (Red, purple, yellow). I crashed mine on second flight due to pilot error (stupid mistake), DA 50 overheated will hovering at low altitude and was not able to recover.
To make a long story short, will need many parts of this beauty and wonder if anyone could help.
For what it is worth, actually this was an awsome plane and one like i've never enjoyed a new plane in my entire 27 years of flying and God only knows how many planes i've flown.
This DV was simply incredible, no trimming at all, perfect handling, crisp sharp controls and an incredible stability despite windy conditions.
For your guidance have already ordered the DV SE but very much like to rebuild the one i have with original colors which i like very much.

Thanks for your help. Dany

RE: Its Here!! Double Vision
 

That's a bummer... I doub't you'll find all you need out there...

At the $389 price from Chief... maybe you might get one of the new designs and keep the good parts from your first one?

RE: Its Here!! Double Vision
 

Hi guys. Just finished my DV and will maiden it next week, the first day with 7-10 mph straight down the runway from the east. Not too picky, huh? Thanks to all the guys who helped on this thread. BTW, mine weighs in at ~ 19 lbs. w/2500 nicads for ign. and rcvr. Looookin' good. Y'all take care.