My first gasser motor install....look ok?

[JEFFRO503]

hey guys...I got my WH 35% sukoi last week and i'm attempting to do the build the best i can. Everything seems to be going really good so far and i'm totally happy with the way things are turning out. I'm taking my time with it , since i still have a couple weeks to go before i can afford the rest of my servo's......but i tried to do the cleanest looking install i could. The airplane comes with "0" degree's right thrust , and supposivley for 3-D type flying it's supposed to work really well. I off-set the motor by 3/16" to the left , so if i was to add a little right thrust , the spinner should end up right in the middle. Here is a couple pics of my install , and with the header/cannister retro fitted in place. Motor is a BME 115 , with DA-100 header's , with the exhust stack cut off and a new set of BME stacks put on. cannister's are MTW 75's.




Jeff

[sweetpea]

make sure you put some clamps on the couplers or they will work themselves off.

[rdgood]

Jeff,

Dude where's the indoor/outdoor carpeting???? Hehehehehe

It's looking shweet as far as degrees of thrust I think most folks are shooting for between 2 1/2 and 3 degrees. Ya definitely want to counteract that torque!! You can always adjust a little more or less later on. What kinda of servos ya going to put in that thing???

Ronster

[krayzc]

that is looking like one sweet install

how much more is left to do?

[JEFFRO503]

Hey sweetpea.........yes , i will definetly have the clamps all mounted up as well , but i can't do that until i get my gear installed. I'm sending off my gear to Mike at Graphtech , to get a set of CF gear made to offset some of the weight of the motor mount and cannister's.


Ron.....For some odd reason , this airplane fly's well with "0" degree's thrust , for 3D type flying. the guys doing IMAC with it however are adding about 3 Degree's right thrust and about 1-2 degree down thrust. I'm going to start out with "0" and work my way up from there. I made the mount so it's going to be easy to add a little right thrust if i need to.

as far as the electronics goes......it's going with a SF power expander pro , SF turbo reg , SF optical kill switch , all fromeco switches , batteries and the one regulator for the ignition. Servo's will be 5955's everywhere except throttle.


Hopefully , by the time i get my gear back , i'll have the rest of my servo's and switches. As of right now though , i made a set of shorter landing gear so it's easier to work on it on my table. It was great for working on the smaller planes , but sheeeesh......these gasser's are bigger. gary's 33% SD yak is tall.......mine is going to sit about 4" taller than that. I think i'm going to modify my table a little at the end and make some type of a cradel of some type to hold my plane.


IF......everything goes right , i should be able to maiden it within about 3-4 weeks tops.........i'm hoping anyways. I just want to fly it in june some time.......that marks my one year of flying , and i told myself i wanted to be flying a gasser in a year. last june , i was flying a worlds model high wing skyraider...HAHA!! Hopefully my sukoi will fly better........i'm having a good feeling it will.


Jeff

[JEFFRO503]

This is small and misc........but i just looked at my pictures here on this thread , and if you look real close , the bottom ( or actually the top) of the firewall is a brown looking color. Almost looks like the piant jopb got botched.......but it's a solid black colore...........must be the flash on the camera playing tricks on me i guess.

[Vic3D]

Doesn't matter what kind of flying you're going to be doing... You really need to get some right thrust in there.

[JEFFRO503]

I'm not very good with math........but if i was to add let's say a 1/16" washer on the two left mount bolts....what would be the degree of the motor? the BME is considerd a short motor to begin with ( 5-1/2" long to be exact) I wonder if i should throw one washer on before my maiden flight? How do you actually figure out what degree your moving your motor?

[3ddd]

1/16th is around 1 degree but be careful not to tweak the mounting lugs on your engine as then they will snap off---oh ya really nice looking job on the install

[Jenko]

Looking good JEFFRO503, Just one thing don't forget to leave a good 3/8" gap between the headers and the canisters where they are joined with the teflon couplers.

[forgues research]

	Quote: Originally Posted by 3ddd
	1/16th is around 1 degree but be careful not to tweak the mounting lugs on your engine as then they will snap off---oh ya really nice looking job on the install

1/16 inch will have different degrees of offset depending on the width of the mounting points.
Yes be carefull on the flat install with this offset,

I always machine in the offsets on the standoffs I sell makes for a better fit.

Just my two cents for the day.

Roger

[yakwrecker]

Dude do the landing gear go into that fuse vertically? i looks like you set it on its back and the mounts go strait in the fuse.