Engine: Verner 3VLA

[Peterross]

I also was hoping for additional info once you got it. Thanks for the update!
Looks like it comes with an oil cooler?
Also, any new drawing to show the changes? I think they changed the motor mount points.
It'll be great seeing it on the plane with a prop on the front.

[Brock]

No oil cooler, no documentation, no installation manual, no maintenance manual.

[Peterross]

If you have nothing let me know and I will email you what I have. It is the 3VL version so I think the only difference is the mounting.

[Brock]

I have the 2020 manual for the 3VL & 5VL.  What I would like is some of the technical info like how does the generator work/wired, How are the coils timed, etc.

Does anyone here have the dual plug/ignition 3VL?  Woder if it is a bit more fuel efficient with two sparks.

[Brock]

I had some questions for Verner to which 'Kimil Verner' responded.  Here is what I learned...

-FB is the main way the factory communicates to the comuninty.  :-(  I'm not on FB.
-An updated manual will be out early 2025.
-The 3VLA uses the engine shock mounts from the Rotax 912.  (anyone have a set laying around?)
-Separate exhaust pipes have a better sound than the ring-exhaust.
-below are the main dimensions.

Question: What propellers are you using on your 3V?

[Chuck in Indiana]

You are not missing much on facebook. My guess is that you won't be running it before early 2025  but I can take a picture of any thing in the operating manual that you are concerned about before then.

[Brock]

Oh, I have the old 2020 manual.  Yes it will be some months as I've not yet build the wings, ribs are done though.

[Brock]

Verner said that the engine shock mounts were/are the same that is on the Rotax 912S.  So after searching I found part numbers then ordered what I believe is needed.
Parts
(x8) Rubber gromett - LORD RUBBER J3608-1
(x8) Washer -
(x4) Bushing -

The gromett I got off Aircraft Spruce.  They were over $33 each!  Verner said they recommned a 'Shore Hardness of 75'.  I have not been able to find the hardness specs to the Lord mounts I received (pic below).  The washers are special cupped washers that go on each end of the mounts and the bushings go in the center.  These metal parts were also very expensive but I found them used and have them on order.

[Brock]

EDIT: 15Jan25

Verner sent me, today, this link for the updated manual.  Said I can share it on the forum...

https://drive.google.com/file/d/1GwnCROukmo1M1n4v6EHvBLii4PdyIk8M/view?usp=sharing

The Carb Tuning Guide can be downloaded directly from (better quality)...
https://www.sscycle.com/docs/default-source/default-document-library/510-0245_carb_tuning.pdf?sfvrsn=0

[Chuck in Indiana]

Thanks for that. It's considerably more detailed.

[Brock]

I'm putting this in my Engine thread as it attaches to the engine and I didn't want to start a new thread.
Today Big-Brown dropped off this bug-free Warp Drive propeller.  I've not assembled it to measure the length but it should be 67".  No doubt wood would have been lighter and more nestalgic looking.  Perhps one day.  A bird in the hand is worth two in the bush. Anyways, just posting a pic for my log record as well as for those not familiar with Warp Drive props.

[Peterross]

Nice fun toy! When does it get mounted and run?
Are you building a stand or will it get mounted on the airframe before running?

[Brock]

No stand except the airframe.  Though I'm working on the gear now so it will still be some weeks or more before mounting.

[Chuck in Indiana]

Yeah, my BIL told me I needed to make a stand an run it and I told him it would run when Bullet was ready to fly. Bullet made a perfectly good test stand. 

[Brock]

Thursday Big-Brown delivered this ring mount for my 3VLA.  Seems the welder used the wrong drawings - oops!  At least one of the four points line up.  Back to the drawing board and this time I will be doing the welding.  Welding skills have improved a bit since first ordering that mount, long before welding up the frame.  This mount was made with 5/8ths and 3/4" tubing of unknown wall thickness.  A few questions for you with the 3V (or 3VLA).

• I have a HarborF tubing bender with a 5/8th die set.  Anyone know how small of a circle can be managed on this tool?  I'll be shooting for 14" OD dia.  This mount is 16" which is larger than the width of my firewall (Made station-1 13.5 x 13.5 on center).
• What size tubing (dia & wall) have you found to work well.  Would be easiest if I could get away with just 5/8ths since I have a bending die for that.  But I'm not opposed to picking up a 3/4 die set.
• Also, I was planning on using 5/16" (AN -5) bolts.  Any reason to go different?