Andrew le Roux

Has the divide and conquer approach shown where the problem lies?Edited By Andrew le Roux on 31/12/2013 07:42:49

So we going to see that flying on the 2nd, Steve? I see we're banned from the field on the 1st due to a shoot....

Sounds like a plan 😀

Ah. I see the model needs a 20-22cc petrol. Have you considered converting, say, an ASP180 to gas? I recon with the Just Engines super quiet silencer you'd drop below 82db easily.

oh Jeff, that ultimate looks really nice. What brand is it? Steve, what are you building?

Posted by jeff2wings on 25/12/2013 17:40:04: And a merry Xmas to you Andrew and the other three amc members that read this thread LOL ! Would like to know what engine you have in the edge and ,more inportantly ,silencer used as I'm thinking of one for the Pitts ? Hey Jeff I put in a lot of work to get it down to the 82db limit, so I'm glad to share my experiences.No one measure was enough to get it there! Its a DLE30 with and AS Power canister from gashangar. I've also put in a carb intake filter (from iadmodeldesigns) and a whole lot of airframe dampening. I also went overboard and got a professionally cut spinner in an attempt to further reduce vibration. Finally, I put in some foam padding (from rsonline) on the inside of the cowl to help reduce noise further. Not sure if that helped or not, but it was fun doing it! Prop choice also turned out to be critical as was keeping the rpm's down. At the moment, I have a prop tip speed of 385mph at 7300rpm. As this setup is close to the limit, I'll be changing prop once the engine has run in a little more. a 20x8 should give me the same tip speed at just 6500rpm with a little more thrust. Hopefully the drop in rpm will make it even quieter! I'm also considering a 3-bladed prop for a future project

Merry Christmas to all amfc members! Nice to hear that leg of yours is getting better, Steve! See you all in the new year Andy (The guy with the quiet petrol edge)

Looking good

Fingers crossed, letshope this works let us know-pics would be welcomed

Well, there's 3 ideas for you now - keep us posted

Hi Martyn Just wanted to say thanks for posting this thread - I've found it most useful while assembling my own Luna! Sorry to hear about your captive nut issues. The only idea I can think of is to use something like plasticine to build a little 'swimming pool' under the affected wing bolt. The idea is to full that pool with epoxy-microballoon mixture and then get the captive nut to lie in that pool while the glue sets. Afterwards, you could probably fish out the plasticine through the servo-lead hole in the fuzz.. Obviously the tricky part is going to be making sure the captive nut is in the right position when the epoxy sets. I'd suggest assembling the wing, protecting the relevant areas with petroleum jelly and masking tape/cling wrap . First pre-fit the front right bolt with the captive nut fastened at the bottom of the wing. Fit the wing to the fuz, using the other 3 bolts to ensure a 100% alignment by screwing the wing to the fuzz with them. Does that make any sense?   Regards Andrew   PS Does anyone know what a good starting point is for the incidence of the tail plane? I know this varies a lot according to the wind etc,but I'm hoping to set it up with a decent starting point Edited By Andrew le Roux on 07/08/2012 15:20:08 Edited By Andrew le Roux on 07/08/2012 15:31:23

Hi Peter I've just read your post. I bought a Jen 57 when they first came out. I went through quiet a learning curve with the engine, mostly because it was my first non-OS. My experience with them was fit-and-forget, either because I was lucky or because of their quality. To cut a long story short, I'm using Prosynth with 10 nitro in my Jen. Now that I know how the engine behaves, I have no issues with it at all. I do have to check the bottom end more than I'd like. I to tend to keep settings on the rich side, as there is no castor in the fuel. I still think its excellent value for money and a great engine. I'm sure you'll get many years of excellent servivce from it.