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Butterfly / Monarch.

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  • Butterfly / Monarch.

    As most of you know, I'm a scrooge and was too tight to fly/ carry me gyro to Cooma but it didn't matter coz Greg Mitchell and Allan Wardell were gracious and generous[ and brave] enough to allow me to fly their butterfly and monarch machines.[]Since I'v been home I'v had numerous enquires bout my thoughts on how they flew, and to save a bit o pain in my typ'n finger, I'll post my [ dim] thoughts on this forum.Firstly, I only flew each machine for round 2 hours each, in smooth conditions and continualy switching from one to the other made it a bit harder to compare fairly.Also, I'm typ'n as a SCG from the simpson desert, not a gyro specialist, so my oppinions bout the machines are from that perspective.[the only perspective I can talk from.]Mitch's butterfly.For someone who has never built a gyro and is a self confessed non mechanic, you'v done a spoton job at your first attempt Mitch.[]Workmanship and obvious pride in finish was the first thing I noticed,your birds a credit to you mate.[]Unfortunatly, I never got to fly it with a decent set of blades, and the old Bensons that where onit didn't do the machine justice at all. They are very light, almost impossable to loadup and I didn't want to stress them, been old and of less structual integraty of modern blades.That said though, they were every responsive to inputs from the stick with not as much lag time, almost akin to a wing.Responsive, but as a wing, impossable to load.[If Mitch can master these blades and not bend um for 50 hours, he can fly anything.][]Starting at the front.The nose gear,in a word, scary.[:0]Theres alot o flexing going on when taxing over even modestly rough ground, both longatudionaly and lateraly, and it wasn't cum'n from the spring. Flexing causes fatigue, causing cracks........ .Something as simple as forks with a bracing strut wouldn't add any noticable weight but will be much stronger.Even a slightly larger tyre would help.I didn't like the digital readouts on the dash, pretty but not easy to read at a glance, especialy if you'v got dry eyes after 6/8 hours in the seat.The foot works were a treat, comfortable and well placed, but the turning circle is lousy and without power up a little, the rudder didn't assist the nose wheel at all.It took a while to get used to the seating position, it leans back much more than I'm used to and it felt like I was going to slip out.The little 2 banger performed better than I expected, and could be due to the efficiant 2 blade prop, but the vibes from the prop would have you with pins n neadles after a few hours.For this light machine and an under nurished desert rat like me,there was plenty of power for slow speeds.[0 knots indicated].The main's suspension, tho good for taxing/ tak'n off from rough ground, is too soft.The rudder I thought was very authorative but maby too touchy, coz under TO power, the peddals need a very light touch.After adjusting to the opposite torque of the two banger, the 0 inerta but quick responce of the blades, the cold and the enforced min altitude it was a good fun, light machine to fly.[^][Don't tell mitch, but I was help'n a cocky to get rid of some 2 legged critters off his cow food in the designated low fly'n area, and solong as I kept the AS up, I had no trouble annoy'n the critter. Manuverability and responce at speed is impressive.Allan's Monarch.Much the same as the butterfly, but with the better [Patrony] blades on this machine it was easier for me to play with, and the extra power of the bigger 2 banger was sucurity when low n slow.Tak'n into account the blades and power difference, they are basicaly big and little brothers.The big difference on the monarch was the G force main gear..I don't like it at all.[V]I agree that sumthn like this COULD save some rebuilding if you drop it in from 20 odd feet, but after TRY'n to land on this gear, I conclude it unnesasary, and even dangerous. Maybe its just a SCG thing, but I almost rolled it twice, and alota people were watch'n[B)].Your better off learning to land properly.Sorry Allan.[ Im not say'n you can't land properly,I'm say'n you can have the G force thingy.[}]]Now, the reasons why I wouldn't trade in the ferel for one o these machines.[remember, I'm a SCG.]It starts with endurance.Any machine isn't practical if you can't do at least 2 1/2 to 3 hours without need'n to take on fuel.The little butterfly has only bout 1 1/2 tops.Carry'n extra fuel = more weight=bigger blades and more power needed,which puts me bout where I am now.And most places where airial mustwering takes place is inland,where the altitude, temps and DA mite leave these machines wanting, especialy if your carrying 3 hours of fuel.With 3 hours fly'n time, rotax 4 bangers,heavy extruded blades and a substantialy beefed up nose gear,greatly reduced turn circle, more ridgid main gear[like the butterfly's] and it'll make a slippery little steed. [^]Sorry if I'v upset or dissapointed anyone but I'm try'n to be honest.[][afterall, I'm only a SCG.]Thanx again Mitch and Allan, your help and generousity is very much appreciated.[]Ignorance is bliss............but only till you realise you were.Ingratitude stinks.......be generous carefully.

  • #2
    Birdman,A good article, nice and square. I like your honesty.Cheers,Nick.

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    • #3
      Birdy,Thanks for taking the time to post your thoughts on the Butterfly and Monarch. As I am about to start building my Monarch, your NO BS review is very timely. As you would expect, Allan and Mitch are right on the ball and have already suggested most of the changes you mentioned but it is always good to have an independent tester confirm things - and add a few points.Rotax 4 banger? - I wish........ The frame wouldn't handle it though would it?Daj

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      • #4
        Birdy,Cheers Mate, I appreciate you taking the time to comment on your time in Butterfly/Monarch. There are some changes planned for these craft based on our (mine and Allan's) experiences and your suggestions.For me it was always part of the deal to, meet you at Cooma and ensure you got plenty of time to 'play', so that you could give me some solid feedback.Butterfly, sprung mains can be stiffened up with adjustable shocks, mine have no adjustment.Larger capacity tanks will be trialed soon.Front single strut will make way for the new style strut Allan was sporting on Monarch (curtesy of Rod Torr and Murray Barker) hope I got that right fellas. Front strut with GFLG will require triple springs.Ultralight GFLG for Butterfly is an adjustable air shock set-up and very light, so testing of this in the future may result in different likes and dislikes also. Turning circle, which is a shocker at this time is largely due to the steer cables being a tad longer than required, shortening these will result in a more responsive and tighter turn capacity.I reckon with a few adjustments/changes and some 'hang in there' type blades, we might be able to get this 'slippery little steed' up to speed.Thanks again for your review Birdy. It was a pleasure to have you access these craft from a musterers point of view. And it was great to meet you and Liz, Jack and Alice. I hope you all had a great holiday.I do have some awesome video footage and some impressive drop in shots of Butterfly. The last drop in looks like 2 1/2 to 3 foot from an almost zero forward airspeed. I've played it in slow-mo, watched it on the big Telly here in Sydney and am pretty amazed at what I see. As soon as I get home I will convert some stuff to Windows Media Player and have it made available for download viewing. The fly by stuff with the seven gyros is full-on and Ozy Woz, Don Cowling, Birdy and a couple of other guys, cutting up afterwards, is a sight to be seen.I'll do short clips, that will be easily emailed or downloaded through links.Daj...Larry said he'd prototype a Rotax 4 banger...only catch is he said send one over for the job...that'll have to wait a bit yet. Allan has all the 'bits' for you, soon as I'm home we will get onto the changes and the next package.Mitch. www.thebutterflyllc.com

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        • #5
          Guys,Like Birdy and a few others I would like to thank Mitch and Allan for the offer of test flying their well built lightweight gyro's.As I weigh in at 112kgs dressed normally but was probably carrying an extra 5kg of cloths because of my inability to cope with the cold, I would like to add to Birdys comments based on a short test flight of the Monarch. I declined Mitchs offer of flying the Butterfly not because I didnt think that the 503 would push me through the sky but because my weight would have put the hang test out of parameters and I knew from bitter experience that the old Benson blades would not have lifted the AUW.Over all from an engineering perspective I agree with Birdys comments 100% and no I wouldnt recommend fitting the 912 without some re-engineering because the basic structure is a little lightweight for the increased loads.Flying the Monarch I found that it was under rotored for my weight but a stable mount with good capability. The 582 provided adequate power (My gyro has 120+hp and I still wish for more sometimes) and would be a great performer if it was flying 26' Patroneys or AK's for the heavy pilot. The suspension ! well I was probably forwarned because of my discussions with Allan and Birdy regarding its vices - definately not for low time gyro pilots without adequate type training. What I mean is it would be risky for a novice to Solo in the Monarch with this suspension with out clear advice on how to handle the differences.Over all they both are well engineered light weight gyro's for sport flyers that offer great value for money.For the guys who need to work their gyro's I dont believe that the airframe in its current configuration would last 1000hrs mustering from a typical OZ dirt/gravel envirionment.Those of you looking for a lightweight recreational gyro that presents good value for money should feel comfortable with this gyro with adequate rotors, 40l tank and reengineered nose wheel all of which Mitch has commited to.I make the above comments based on a 30 minute test flight of the Monarch in light winds

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          • #6
            Adrian,Another valuable review.Would you care to elaborate on.... quote:For the guys who need to work their gyro's I dont believe that the airframe in its current configuration would last 1000hrs mustering from a typical OZ dirt/gravel environment.In what way do you believe the airframe is deficient for heavy usage and what would you do to beef it up?I ask you, and others, to comment on this because I will be flying off rough strips on friends' cattle properties and it's better for me to get it right during the build rather than patch up later.Daj

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            • #7
              Daj,The qualifyer in my statement is the 1000hrs mustering. This is probably 15yrs+ for a average recreational gyro pilot. The active mustering pilot will do this in under three years, some guys will get close to this in one year. The weak spots or high stress areas of the design for Mustering/extreme operations are likely to be the airframe attachment fittings for the undercart, nose wheel(old design)and airframe. I would also want to inspect the mast and control systems at the 500hr mark with a view to replace them. The pump stick bearings are very small in surface area and will probably need replacing at or before 50hrs based on the wear that Allans and Mitchs machine display so far. The current rudder attachment design is also an area that will suffer from hard work. Allan has modified this area on his Monarch. The above may sound negative but remember the average sport pilot will not fly 50hrs a year!Few gyro design's survive the rigours of being flown to the limit of their flight envelope continously with most take off and landings from marginal strips. The Monarch & Butterfly airframes are lightweight structures well designed for their intended purpose- sport flying, with some operations from dirt tracks. Readers of my posts should not read that I am suggesting that the design is flawed it is not! it has been designed as a sport gyro and not as a serious "work horse" .The above comments are based on my experience from building, flying, maintaining and inspecting many gyro's that are flown either as recreational, training or mustering machines. ASRA members who are seeking more specific comments regarding gyro design and construction are encouraged to talk to ASRA Technical Advisors and/or contact me direct.Daj I hope that clarifies things for you, if not please dont hesitate to give me a call. Adrian.Adrian StoffelsTechnical Manager ASRAMob 0427094552

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              • #8
                Thanks Adrian. I didn't read your comments as negative at all BTW - just a lot of good info based on experience. The Monarch is exactly what I need and want for my level of experience (zero) and skill ( zero), and I expect I will feel the same about it in five years time. Mitch's and Allan's enthusiasm is contagious and I've seen just what these birds can do. (Had to change underwear twice just watching Allan on his maiden flight - that guy can really fly when he's got a full fuel tank or should I say is fully tanked)The important thing for me is that Larry, Mitch and Allan are determined to make improvements as and when required. Experienced flyers like you, Birdy and others help speed this process along by offering constructive criticisms. Much appreciated.Daj

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                • #9
                  Gidday All,My thanks also for the frank comments posted here. As Mitch mentioned, we are working closely with Larry to improve the obviously flawed areas.I have also had major discussions wth Larry re the handling of the GFLG. It appears that its use and purpose must be fully understood to get the most out of it. I intend to persist so that if another wishes to fit this gear, I will have some first hand experience which hopefully will be of use. If you go back to the demo videos which were released some months ago, you will note that the preferred method of landing is the dissipate all forward speed at about 3' to 5'AGL, then establish about a 10 degree nose up attitude and wait. I'll work up to this and report later when the weather improves, and work leaves me alone.Thanks again.Waddles.
                  Waddles

                  In aviation, the only stupid question is the one you don't ask!

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