Terry Whiting 1 Posted February 10, 2015 Share Posted February 10, 2015 Chas that looks the business. Strangely enough I was going to call in Old Warden today after calling into GM Growers, but time wasn't on my side Terry Quote Link to comment Share on other sites More sharing options...
Steve Jones 2 Posted February 10, 2015 Share Posted February 10, 2015 Looking great Chas. Nice one Steve Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted February 10, 2015 Author Share Posted February 10, 2015 Nice one Chas What does it fly like? Rich Edited By Richard Harris on 10/02/2015 22:51:24 Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted February 10, 2015 Share Posted February 10, 2015 If it happens where would it be Rich? I can make 19th April. MM Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted February 10, 2015 Author Share Posted February 10, 2015 MM, To give you an idea our field is next to THIS golf club. Rich Edited By Richard Harris on 10/02/2015 23:15:01 Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted February 10, 2015 Share Posted February 10, 2015 Fine, and thanks, Martin Quote Link to comment Share on other sites More sharing options...
Tom Wright 2 Posted February 11, 2015 Share Posted February 11, 2015 Posted by Gyrocopter on 10/02/2015 17:14:36: Atom XL (twice size) at Old Warden today Chas Hi Chas Your OP was so understated I was not sure if the model was your creation or built by another gyro nut, now its clear that you have a new hanger companion for the fleet may I offer my congratulations and will look forward to seeing the model at Winterton. Tom. Quote Link to comment Share on other sites More sharing options...
Gyrocopter Posted February 11, 2015 Share Posted February 11, 2015 Posted by Richard Harris on 10/02/2015 22:50:00: Nice one Chas What does it fly like? Rich Thanks for all the kind words . Rich, The rudder is pretty much ineffective on the ground and it will need a steerable tailwheel. In the air its one of those sort of planes where you can put the transmitter down, pour a cup of tea, and then get hooked up again. Chas Quote Link to comment Share on other sites More sharing options...
Phil Winks Posted February 11, 2015 Share Posted February 11, 2015 Hi Richard I could make April 19 bit of a trip out but help or no I just enjoy flying at different fields, stops you getting into any sort of a rut Quote Link to comment Share on other sites More sharing options...
Phil Winks Posted February 11, 2015 Share Posted February 11, 2015 posted by gyrocopter on 11/02/2015 17:03:54: lodged by richard harris on 10/02/2015 22:50:00: nice one chas  thanks for all the kind words . rich, the rudder is pretty much ineffective on the ground and it will need a steerable tailwheel. in the air its one of those sort of planes where you can put the transmitter down, pour a cup of tea, and then get hooked up again. chas This is encouraging a 200% version is on my todo list I've even earmarked the Irvine Q40 as the umph provider Quote Link to comment Share on other sites More sharing options...
Grasshopper Posted February 17, 2015 Share Posted February 17, 2015 I must be losing the plot for having completed my build (less the painting) I cannot find Rich's throws in this thread and have only his build article to go on. On my Firefly and Cranefly builds I have adopted the approach of setting the fuselage such that the mast is vertical in pitch and roll planes and in this way the various settings can be documented and applied without the need to allow for the mast angle since this is (almost) always fixed. With this simple approach I think Rich’s settings are: Tilt back 5 degrees. Tilt forward ? degrees Roll neutral offset left 1 degree Roll + - ? degrees Can anyone please confirm/modify these values and fill in the blanks? Peter Quote Link to comment Share on other sites More sharing options...
David P Williams Posted February 17, 2015 Share Posted February 17, 2015 Peter - check back to page 13 of the thread - I found some throw info there yesterday when I was setting up mine. Quote Link to comment Share on other sites More sharing options...
Grasshopper Posted February 17, 2015 Share Posted February 17, 2015 David, thanks - I had spotted these throws a week or two ago, posted by Steve Jones. Bear in mind that I talk about settings relative to the head plate as in my post above. With his roll settings this gives 17 degrees left/right which on my Firefy is way too much for me. I use 8 degrees and find it flyable. The tilt up is 17-7.5 = 9.5 degrees against Rich's value of 5 degrees. The tilt down is -2-7.5=-9.5 degrees which Max 2 commented was 'noticebly more' than expected. I am still not certain where this leaves us? Peter Quote Link to comment Share on other sites More sharing options...
Max Z Posted February 17, 2015 Share Posted February 17, 2015 I'll see if I can link back to a video I shot showing the throws of my Atom: Max. Edit: nope, did not work. Go back to my post on page 35 to view it. Edited By Max Z on 17/02/2015 16:50:28 Edited By Max Z on 17/02/2015 16:52:28 Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted February 17, 2015 Author Share Posted February 17, 2015 Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted February 17, 2015 Author Share Posted February 17, 2015 Hope that helps Peter? You can tone down the roll throws to suit your style of flying, you will need no more than that shown on the video. Rich Quote Link to comment Share on other sites More sharing options...
Grasshopper Posted February 17, 2015 Share Posted February 17, 2015 Rich, thanks for that, very helpful. Always the engineer I had hoped for some numbers to crunch but this is clear and I will do my setup and be ready for a first flight on Sunday. My French friend Sam should be ready as well so we will have two Atoms at the field. Interestingly there is a two seater autoogyro based on the airfield and apparantly the pilot offers demo flights. We often see him taking off and doing circuits from our patch which is only 300 metres from the big aeropland runway. Imagine that in UK. Peter Quote Link to comment Share on other sites More sharing options...
Tom Wright 2 Posted February 18, 2015 Share Posted February 18, 2015 My Atom inspired model, roll only head ,all moving tail, filleted single boom, 46" rotor. Have now flown several times without covering and as Chas found with his XL version very easy to fly ,will now sort our some faring behind the mast bulkhead and covering. Quote Link to comment Share on other sites More sharing options...
Ozgur Sar Posted February 18, 2015 Share Posted February 18, 2015 Nice one... does it have any videos? Quote Link to comment Share on other sites More sharing options...
Grasshopper Posted February 23, 2015 Share Posted February 23, 2015 Another one has flown! My buddy Sam flew his Atom yesterday for the first time here in Brittany. Almost no wind so initial attempts were tricky as we could not get the blades up to speed. Then after a run the whole length of our 'piste' off he went for a twitchy flight. This on +-16 degres of roll which was clearly too much. The wind was gusty just 20 metres or so up so he did well to keep control. Landing in a bundle in long grass with only minor damage. My Atom needs some decals and the blades covering and I will be ready so looking at next Sunday for my maiden. Peter Edited By Grasshopper on 23/02/2015 19:03:20 Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted February 23, 2015 Author Share Posted February 23, 2015 Tom, Sorry, I missed your post, nice take on your larger version. I do like the all moving tail, it looks well engineered Peter, Glad to here Tom's has taken to the air and I look forward to a full flight report on yours. Don't forget to pop a photo of completed Atoms HERE Rich Quote Link to comment Share on other sites More sharing options...
Max Z Posted February 24, 2015 Share Posted February 24, 2015 Hi Tom, I am surprised to see that your autogyro is missing a rudder, or am I missing something? I am finding that I am steering my Atom primarily with rudder, in particular at low forward speeds, and I am using the roll control mostly to keep the banking angle in check. It is slightly different when I am letting myself be tempted to do some hot-dogging around, I admit......... Max. Quote Link to comment Share on other sites More sharing options...
Ozgur Sar Posted February 24, 2015 Share Posted February 24, 2015 Hi all, I'm getting ready to complete my Atom build. Are you using the blades from AJblades directly or do you reinforce them somehow? Quote Link to comment Share on other sites More sharing options...
Tom Wright 2 Posted February 24, 2015 Share Posted February 24, 2015 Hi Max Your observations are quite correct .. Although my model is inspired by the Atom and is also scaled up I consider it to be a new design . As with all my new designs I approach things in progressive way that often involves proving the model uncovered and in the most basic form possible . One of the flight characteristics I insist on is the ability to achieve easy turns using roll only, at this stage I also insist on a smooth turn without any dig in, if these points are addressed along with others then ground steering and rudder will be added . The initial flight trials have been very successful so this will be anther model joining the fleet the all moving tail and simple roll head are proving to be robust and give good results against the design aims. Tom. Quote Link to comment Share on other sites More sharing options...
Terry Whiting 1 Posted February 27, 2015 Share Posted February 27, 2015 Max Thanks for your advise on the upper surface blade colour. I opted for gold yellow underside and dark blue tops thinking it would help visually whether it was flying away from me or towards me. If this doesn't work out as planned I will recover.. I also took on board your comment on turning with use of the rudder, this was going to be my approach . Thanks again. Terry Edited By Terry Whiting 1 on 27/02/2015 17:22:52 Edited By Terry Whiting 1 on 27/02/2015 17:30:43 Quote Link to comment Share on other sites More sharing options...
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