Richard Harris

They've scrubbed up ok Stephen, it's just a waiting game now. Have you checked your thrustline position?

Looks great Stephen, needs some colour on those boots... Fingers crossed this weather improves soon

Agree, but they are the recommended props for these bullet proof motors. https://www.4-max.co.uk/emax-pulsar-2207-2450kv.htm

Interesting, my CG is around 85mm infront of the LE with an AUW of around 550g. I'm guessing the extra weight is because I widened the fuselage a tad to accomodate larger Lipos on the finished plan. I'd be interested to know how yours performs inverted Steve, mine requires no pitch input for straight and level flight.

Well done Steve, your a braver man than me undertaking a maiden in todays breeze! Glad it flies well and thanks for taking the time to build it. It looks the business We need to get some flying shots and video. I will compare my CG with yours and see how close we are.

Love it Steve, great covering job. A taste of Mercedes W08 there for sure, just needs a couple of Petronas decals. Looks like we have a race on our hands. Out of interest, what's the AUW?

Your just teasing us......

Chris, Shame you can't get lite ply down under but I think you will be OK as yours is not that much heavier than ours. Sounds a bit frustrating waiting for the motor, haven't you got Australian online shops you could go to? My thrustline is parallel to the boom and 90 degrees to the mast, its an optical illusion as the models not quite square to the camera. I've been out with mine again today, this time with the higher kv 4max motor and smaller prop fitted. Can't say that it felt any different to the slower motor. I even managed to fly it at my local park this afternoon, kept it close in and managed to fly around the trees. Good fun.

Hi Steve (no1). Yes, I have gone with a push rod rather than a closed loop system, it's just easier to cut a hole in the fuselage for me. Mine is supported halfway across the boom with a tube simply sellotaped on so its easy to remove. Like wise Steve's is easy to remove but a little more effort is needed to mount the servo. There are 3 completed models so far and all have needed ballast weight up front to achieve the correct CG ( not sure about Chris's yer?). I've tried lengthening the nose and shortening the tail boom but the proportions just don't look right. Unfortunately there are too many variables like wood mass, different motor weights etc. So the easiest way to get around this is to mark a ballast area on the plan,the rotor disc area is good for a considerable amount of added church roof. I think I added about 20g to my nose, AUW of mine is 1070g and it is quite floaty in calm conditions. Steve, Rich and Chris will know doubt confirm their weights when they spot this?

Nice work Stephen I am about to fit an available motor to test on my Gyroo II, this one is has a higher KV so I will prop it down to a 7 x4 and gauge the difference. It's the same size and weight as the turnigy one so there is no need to re-aligne the thrust position. https://www.4-max.co.uk/po-2834-1680.html I have been promising Chris for a few weeks to take a photo of how mine hangs from the motor centre so here you go mate. Hopefully it will help the other Beta builders too. As you can see I'm above the vertical CG slightly as the airframe is anglled nose to the right a tad in this orientation. The string is the vertical datum and the tail boom is my thrust datum as I know its edges are parallel with the thust line. This seems to work well with this airframe, Steve J2's example pretty much matches this and there is another set up the same awaiting for it's maiden.

Great imagination Steve, looks like I will have to tint my canopy glass....

Its also worth keeping an eye out on Ebay for the magazine, they crop up from time to time.

NoPaniC, I am pretty sure PDF's or digital files are not sent out for obvious reasons. That said, SARIK hobbies do post worldwide so getting a Gyroo plan to Belgium is not a problem. Rich

Rich, Bang on, next bay to Perranporth, I grabbed 10 mins whilst the kids were at the arcade (which probably cost me more than the balsa to build Shifty). Pierce, Good to hear, always a gamble with a new shaped model. Hope you give it a go when it arrives on our pages. Steve, Coming along nicely. I've seen the office work you do for fellow Arrows Hawk owners so I'm not expecting a rushed /bland matt black offering like mine.....no pressure....

Cracking paint job

Rich, That video was taken on a pretty calm day so not really slope soaring as such, there were windier days but I didn't take my camera. Beautiful place to fly though, I can see why the slope lads enjoy it so much.

Now that's a fine looking covering job Stephen. I just used scrap offcuts of balsa to make up my spats, I find it quite therapeutic sanding them to shape. Not much left to do!

Rich, Encouraging to hear, thanks. I'm no sloper so it will be a personal learning curve to see how it is modified and performs in more capable hillside hands.

Thanks Steve, Yes, the plan and article incorporates both examples. Looking forward to seeing yours finished Steve.

Chris, I did notice the arc was different on the top half of your fuselage, best place to have any extra mass I guess. Regarding the fuselage, I've been half tempted to draw up a full bodied version as I think it would look quite good. It would go against the ethos of the Gyroo so maybe a complete new model would be on the cards for a future project. Rich

Looking good Chris, On both of the flying models we have added ballast nose weight. Steve's more so than mine which is probably down to his tail plane holder being made from birch ply rather than lite. The plan will be altered to take this into consideration with either a marked area or ballast box to add lead. We have both had to move our motors upwards a tad to which they are pretty much identical, with Steve's he had to get out the scalpel to cut his mast fairing to be able to achieve this. On reflection I would stick with the plan motor mount and mast whilst trimming and setting up, then pretty things up after. Nice 3d printed blades by the way, I would go for the longer 560mm length as the best replicates what we are using up this end of the world. You will find that the extra lift/drag along with the generous tail plane area will dampen out a high motor thrust line, I will take a photo of mine hanging to give you a good idea when I get chance. Both flying models are very predictable, the transition in airspeed as you throttle up takes a little longer with the 8" prop is very smooth which will be perfect for the first time pusheroo. Keep us updated of your progress please? Rich

Here's some snippets of video taken yesterday of both finished Gyroo II's flying. There's also a bit of syncro flying, not an easy thing to do. Hopefully in the next few weeks we will have a few more nearing completion.

A few photos I took today of Steve's Gyroo II on its maiden voyage, after a few adjustments it was flying like is was on rails. His model was then set up on a mode 2 transmitter for Rich E to have a go with to which the pair undertook a bit of formation flying with the pair. Video will follow once I have had chance to look through them. Well done Steve, a stirling job

I will be borrowing that idea Paul, thanks for sharing 👍

Excellent job Steve, as always 😎, you will have no problems with seeing that. Good luck with the maiden 😅 Chris, The motor mount is made to the same drawing I sent you and is the final revision....for now 🙄