Hangar 9 nut Posted August 16, 2015 Share Posted August 16, 2015 There is no right place I fitted mine just in front of the main servo tray on the opposite side to the switch battery placement can sort cog out ! Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted October 26, 2015 Share Posted October 26, 2015 Having tried 4 electric motors and 3 of them having bearing failure, I'm looking at fitting IC to my Bullet. I have an OS46AX max in my acrowot, which I thinking of fitting with a 10x6" prop. Any comments? Guy I work with reckons it's too powerful! Quote Link to comment Share on other sites More sharing options...
Tomtom39 Posted October 26, 2015 Share Posted October 26, 2015 Hello Ian , Thats fine . I fly two one with an Irvine 40 (lighter build) and the other all glassed and basically weighing several bricks (I bought it for a £10 at a recent swap meet) is fitted with an Irvine 53 . Can't comment on prop, as you will need to match it with your engine. My electric PB Bullet (now no more thanks to a radio glitch) flew very well on a Hobby king G46 550kv on 4swith an APC E 15X8 .(Even better on a Hacker A50-16s on 6S - I had a minor issue with a hard landing and had the hacker in my spares bin prop was 17X8 or 10 ) Best of luck. Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted October 26, 2015 Share Posted October 26, 2015 Mine has an OS45SF, a 46 will be fine. You may want to try running an 11" prop, say 11*6. If nothing else it will be quieter Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted October 26, 2015 Share Posted October 26, 2015 Hi I have ground clearance problems with an 11" prop (use an 11x7 on the acrowot) hence the 10" choice. Ian Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted October 26, 2015 Share Posted October 26, 2015 Bigger nosewheel? Mine does a good impression of a lawnmower when the strip gets a little long. Edited By Bob Cotsford on 26/10/2015 13:06:12 Quote Link to comment Share on other sites More sharing options...
Richard Wood Posted October 26, 2015 Share Posted October 26, 2015 You've been extremely unlucky to have three out of four electric motors with bearing failure. Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted October 26, 2015 Share Posted October 26, 2015 Hi Bigger nose wheel looks odd, may replace all with a slightly larger wheel. Had 2 overlander and one turnigy, I balanced and checked the prop and used an unbalanced irvine spinner. The last (Turnigy) motor failed at over 3/4 throttle so I reckon something was out of balance-perhaps the prop mount was or perhaps the prop was rotating at too high a speed?? Anyway, after 3 motors, 2 spinners and 3 prop mounts I give up! I've only flown the bullet a handful of times and it flies really nice, it would be a shame to leave it on the wardrobe! Quote Link to comment Share on other sites More sharing options...
Tomtom39 Posted October 26, 2015 Share Posted October 26, 2015 Ian, Its a super model . I did change the U/C on my electric one as the prop was huge and I have 3"/3.5" wheels on the others as the strip I fly mine from is not brilliant . Quote Link to comment Share on other sites More sharing options...
Hangar 9 nut Posted October 26, 2015 Share Posted October 26, 2015 mine flies very well on an OS 40fsr but I have now fitted a Just Engines purple pipe hoping to get the noise down its running at 11k on the ground on a 10x6 so I can put a 10x7 maybe 10x8 in the air,i to have prop clearance problems that's why iam going the pipe route I have not flown it yet. Getting back to a 45 I personally think its to much ! Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted January 13, 2016 Share Posted January 13, 2016 Well the latest is, I picked up a brand new OS35AX for £63 so am looking more closely at converting from electric to IC. I'll get it off the wardrobe tonight when the wife's at work and look at what tank would fit. I'm sure I have some fuel proofer left in the garage! Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted January 13, 2016 Share Posted January 13, 2016 Posted by Hangar 9 nut on 26/10/2015 20:21:39: mine flies very well on an OS 40fsr but I have now fitted a Just Engines purple pipe hoping to get the noise down its running at 11k on the ground on a 10x6 so I can put a 10x7 maybe 10x8 in the air,i to have prop clearance problems that's why iam going the pipe route I have not flown it yet. Getting back to a 45 I personally think its to much ! Now I'd agree a 61 would be too much but a 45 is absolutely fine. It's not a huge jump up from a 40, honestly! It does allow you to turn a bigger diameter or higher pitch prop at lower revs which keeps the noise down. Re the pipes, I have Genesis pipes from Just Engines/Weston UK on an OS 61SF and an MVVS90, both get under our 80dBa club limit. I think they are both around 10k on the ground, maybe a bit less. It's a long time since I checked them. Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted January 17, 2016 Share Posted January 17, 2016 What fuel tank do you use? The one with the kit is only 6oz, but will fit without any modification, I can get an 8oz in but will have to cut the former, fit the tank and refit/strengthen the former. 6oz doesn't seem big enough for a decent flight. Quote Link to comment Share on other sites More sharing options...
Jack Banner Posted January 17, 2016 Author Share Posted January 17, 2016 I used the stock 6oz tank with my last one fitted with an irvine .39. Got 8-10 minute flights fairly easily. Quote Link to comment Share on other sites More sharing options...
Martyn K Posted January 17, 2016 Share Posted January 17, 2016 I used an SC46 in the 40 sized Meteorite. Same weight and definitely not overpowered Martyn Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted January 25, 2016 Share Posted January 25, 2016 Right, finished building my Acrowot electric and hopefully, I can have a play with the bullet tonight! Does anyone here set up right and down thrust on the engine mount? Thanks Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted January 25, 2016 Share Posted January 25, 2016 I can't remember whether any was specified in the kit but if it was it would probably only be 1 degree on each on a model of this type. Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted January 25, 2016 Share Posted January 25, 2016 I put 1 inch landing longer gear on to my bullet, running the correct 11 x 6, as the 10 x 6 on an SC 46 was inadequate in the air, and did over rev rather than move along nicely. Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted January 25, 2016 Share Posted January 25, 2016 I put 1 inch landing longer gear on to my bullet, running the correct 11 x 6, as the 10 x 6 on an SC 46 was inadequate in the air, and did over rev rather than move along nicely. Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted January 25, 2016 Share Posted January 25, 2016 Thanks Bob, that explains why i couldn't find any notes on the plan, thought it was odd being zero when my Acrowot has lots of right and down thrust-can somebody explain why? I thought about 1" longer gear and may try it if I can make a wire bender! The 35AX I have specifies a 10x6 so hopefully this will suffice! Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted January 25, 2016 Share Posted January 25, 2016 The 10 x 6 is perfect for the 35AX Ian Or obviouly an 11 x 5 if you have clearance I have a thing about the larger disc of air being moved at the front Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted February 13, 2016 Share Posted February 13, 2016 Hi All Latest daft question! If I build up the balsa around the engine, how do I get the engine out in the future? My engine is mounted using allen screws and lock nuts, so I would need to get access to them! Ian Edited By Ian Southerton 1 on 13/02/2016 13:03:37 Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted February 13, 2016 Share Posted February 13, 2016 hello ian...all the 2...4st engines i've boxed in over the years ..i have done allowing the engines room to come out....fully cover the blind side..and the engine side do with enough space to get the engine in out..sometimes a bit of a fiddle.....leave enough balsa to follow the lines of the nose etc...but hollow out enough to get the engine out....access to the screw/bolt heads...and room at the prop driver hole to get the driver through.... or box it all in and only remove the balsa should you need to get the motor out..... ken anderson...ne....1 engine bay dept.. Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted February 13, 2016 Share Posted February 13, 2016 Solder the nuts to a scrap of tin plate, then screw this nut plate to the back of the engine mount. A small self-tapper will do as it only holds the plate with the nuts in place while starting the bolts. Then as Ken said, leave enough room around the engine to get a hexdriver to the boltheads. Quote Link to comment Share on other sites More sharing options...
Ian Southerton 1 Posted February 14, 2016 Share Posted February 14, 2016 Cheers! Was just looking at it-wife has thrown some potted plants away off the side board (she can kill a cactus!) so I have it in the living room. I was thinking if filing a 3mm Tnut and epoxying it in, but think Bob's idea is better. I'll post the results! Quote Link to comment Share on other sites More sharing options...
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