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Hanger 9 Inverza 62

More a piece together rather than build!

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Adrian Smith 103/01/2015 17:47:35
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I thought I would do a blog on this project as info is a bit thin on the ground in this respect. The kit comes in 3 big boxes and is packed extremely well despite ParcelForce's best efforts to ding it! I will be putting one of these up front and will probably use an spate 50cc Weston gas canister.

**LINK**

I will likely get those friendly folks at Just Engines to custom build a manifold assuming I can get all the measurements correct!

Edited By Adrian Smith 1 on 03/01/2015 17:48:06

Adrian Smith 103/01/2015 17:50:32
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2151 forum posts
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Looking at the cowl a bit of cutting away work will be required particularly on the face of it.

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Adrian Smith 103/01/2015 17:52:20
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2151 forum posts
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p1020112.jpgp1020110.jpgp1020109.jpgAs I say the kit is packed well plus is of very good quality. Even a set of dials in the office!p1020107.jpg

Adrian Smith 103/01/2015 17:54:33
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2151 forum posts
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The firewall is drilled for an Evolution 62 engine and a template is provided for cutting out the firewall. However with the OS60GT this will be completely different and some work will be required. Anyway more later.p1020108.jpg

Adrian Smith 107/01/2015 19:40:09
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2151 forum posts
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OK so a bit of work done. I have cut the face of the cowl out which was quite easy with a drill bit, tin cutters and finishing off with my Dremel bits and sandpaper. I needed to do this first because the manual gives no indication of the distance from firewall to where the prop driver emerges from the cowl. This equates to 141mm allowing for a good 2mm of prop driver showing. My engine of choice is the OS 60GT gasser and the measurement from mounting lugs to prop driver is 127.6 mm while the carby extends out a further 38.8mm. So I will need stand-offs plus mounting washers of 13.4mm (141mm less 127.6mm).I have ordered a set of 4 OS M5 12.7mm stand-offs which should just about do it. This means that the firewall will need to be cut out and shaped to allow the carby to sit through the firewall.

Next, given that there are no info on side thrust angles built in (no down thrust by the looks of it) and no lines drawn on the firewall, apart from bolt mount holes for the Evolution 62, I measured the angle of the firewall to be offset at 4deg. So to work out the offset on the firewall the sine of 4deg is 0.069756 so 5.55" (equates to 141mm) x 0.069756 = 0.3871" or 3/8" offset line to be drawn from the firewall centre line. Hopefully the prop driver will sit on the middle of the centre line when exiting the cowl!

Gary Manuel07/01/2015 19:54:44
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1844 forum posts
1507 photos

Very nice looking model Adrian.

I'm sure it will fly as well as it looks if you carry on with your attention to detail.

P.S. Amazing how we old un's can driFT FROM MM TO INCHES AND BACK AGAIN WIThout thinking wink

Adrian Smith 113/01/2015 16:49:45
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2151 forum posts
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Firewall suitably carved to accept my engine of choice OS 60GT. I have had to plug the original holes with glued dowel and re-drilled them to suit the engine mount on the OS. Furthermore, as is my usual method I have lined the bolt holes with metal tube to reduce the wear and tear on the firewall due to vibration.

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Adrian Smith 113/01/2015 16:52:12
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p1020126.jpgNext I have trial fitted the stand-offs and I also fit some big button washers both sides of the fire wall to protect the wood. Lastly I test fitted the engine and Weston canister ready to take measurements for a custom build manifold.p1020123.jpg

Adrian Smith 119/01/2015 19:42:23
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2151 forum posts
835 photos

While I am waiting for those good people at Just Engines to manufacture the custom made manifold pipe I thought I would do some work on the tail feathers. The kit comes with two fibre glass elevator horns (very sturdy) to allow for each elevator to have a servo each, both located in the tail. However, as I am using a pull-pull arrangement on the elevators with one powerful servo in the fuz I needed to buy some different fibre glass rudder horns from Probuild UK to fit on each elevator. A bit of fettling was required to do this, a bit fiddly too, and the job finished off with my trusty pot of Gorilla Glue. Thinking of doing the rudder horns next using those horns that came with the kit.

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Adrian Smith 119/01/2015 19:42:50
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2151 forum posts
835 photos

like so...

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Adrian Smith 120/01/2015 17:37:40
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2151 forum posts
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More work on the tail feathers. The two tailplanes are mounted on 2 rods and line up perfectly with the tabs that accommodate 4 bolts that as is my usual practice are secured with semi-permanentp1020136.jpg thread locker. I covered the original elevator slots with Oracover film as I won't be using them.

Adrian Smith 120/01/2015 17:38:27
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2151 forum posts
835 photos

The tail wheel fitting is not my favourite way of doing it with the assembly glued into the rudder with 30 minite Epoxy, but as that's what supplied by Hanger 9 I will use that.p1020135.jpg

Adrian Smith 120/01/2015 17:39:01
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2151 forum posts
835 photos

The rudder is then glued to the fin using Gorilla glue

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Adrian Smith 120/01/2015 17:39:33
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2151 forum posts
835 photos

Are you still awake there at the back?! I do hope I am not boring you!

john stones 120/01/2015 18:53:00
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10381 forum posts
1475 photos

No Adrian not bored just watching quietly winknice looking aeroplane yes

John

Ross Clarkson21/01/2015 17:56:01
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1438 forum posts
106 photos

Nope, not bored. Just waiting patiently!! wink

Adrian Smith 122/01/2015 12:11:18
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2151 forum posts
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Thanks guys I am a bit slow as I am trying to get some flying in too, weather permitting. Will hope to do a bit more this weekend!

Tomtom3922/01/2015 12:22:53
678 forum posts
1 photos

Looking forward to seeing it up in the air.

Adrian Smith 122/01/2015 16:50:24
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2151 forum posts
835 photos

Me too Tomtom39. One little set back though this afternoon. I have had a call from Just Engines today to be told that the distance behind the engine to the canister is too short and the curve would be too sharp to be able to manufacture a manifold that would fit. Furthermore, even if I had a tuned pipe set further down the fuz I would still have a similar problem. The other issue would be trying to screw the bolts of the manifold into the cylinder head would be pretty nigh impossible due to the curve on the pipe. One possibility suggested would be a wrap around exhaust, but as the engine was supplied with an OS muffler I would use that instead. Fortunately where I fly there is not the noise sensitivity that other folks have to endure. Just need to prop the engine at it's optimum quietness. As can be seen the muffler does fit although I will have to carve a bit more cowl out than I wanted to. I did think I could side mount the engine instead of inverted, but just as much of not more of the engine (cylinder head) would hang outside, necessitating a big carve job here too. So I will stick with the way it is. Anyway if one had a rear pointing exhaust port this problem would not arise.

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Adrian Smith 122/01/2015 16:52:06
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835 photos

Next I glued in the horns in the wings with Gorilla Glue and they are a nice fit. As can be seen there is string within the wing to help with threading the servo leads through.

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