Chris Dowell Posted September 28, 2021 Share Posted September 28, 2021 Correct.. carbon arrow shafts and I also used shorter blades ,from one of my "Minimum's"....and the all up weight is 910gms, with a "slight" modification to the fuz. Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted September 28, 2021 Author Share Posted September 28, 2021 20 hours ago, Chris Dowell said: Correct.. carbon arrow shafts and I also used shorter blades ,from one of my "Minimum's"....and the all up weight is 910gms, with a "slight" modification to the fuz. Chris, Mine weighs in at 920gms, that's with a 3s 2200mah Lipo installed, so you have saved 10 grams with your arrow shafts, though it could be the gravitational pull is a little less down under ? ?? Have you flown yours with the 'add on' fuz yet? Rich 1 Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted September 30, 2021 Share Posted September 30, 2021 Yes I have successfully flown with the modification ...which I then remodified....and again...I was also using a 3S 2200ma pack I will send you a pic in the next couple of days...It does look a little "way out" Gravity...ah yes...that does make a considerable difference. Chris... Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted October 12, 2021 Share Posted October 12, 2021 Hmmm.......... How far over can you bank the Gyroo......... Ohh!!!! Steve ? Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted October 13, 2021 Author Share Posted October 13, 2021 Steve, That was pushing almost 90 degrees bank! Dont think you'd of got away with that without the speed ? Have you tried a loop or roll yet? Rich Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted October 13, 2021 Share Posted October 13, 2021 Just now, Richard Harris said: Steve, That was pushing almost 90 degrees bank! Dont think you'd of got away with that without the speed ? Have you tried a loop or roll yet? Rich "Have you tried a loop or roll yet?" Next on the todo / try list ? Cheers Steve. Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted October 18, 2021 Share Posted October 18, 2021 Steve. What is your motor on this model.................got to get me a new one................mine is a tad under powered. ? Cheers Chris... Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted October 21, 2021 Author Share Posted October 21, 2021 On 19/10/2021 at 00:32, Chris Dowell said: Steve. What is your motor on this model.................got to get me a new one................mine is a tad under powered. ? Cheers Chris... Chris, If it's any help the motor I'm using is THIS swinging a 11 x 5.5" APC prop, 40amp ESC off a 3s 2200mah Lipo. This gives me plenty of power to easily pull loops from level flight, it could be propped down for a more sedate flying style and better duration. The other models I have seen do have bigger heavier motors fitted which work just fine too. Rich Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted October 21, 2021 Share Posted October 21, 2021 On 19/10/2021 at 00:32, Chris Dowell said: Steve. What is your motor on this model.................got to get me a new one................mine is a tad under powered. ? Cheers Chris... Hi Criss, The motor I used is a EMAX BL 2815/09 Its a old motor I have had for some time but never used until now. A 12x6 Master airscrew Prop is on it I think I could get better performance from a APC Prop but it works fine with the 40 Amp esc and a standard 2200 mAh 25c Lipo battery Hope this helps. You want to try your hand at pylon turns ? Steve. Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted October 22, 2021 Share Posted October 22, 2021 Gentlemen. Well Rich my motor is a little smaller than yours ..being a 2826 1000KV turning a 10 X 4.7 SF prop so it flies be it very sedately. Now Steve that motor you are using is a bit overpowered for this model. I have about six of them that I use on considerable larger models I have one in a DAG and had one in the Panther....and I know that they turn a 12 X 6 prop with ease . Now I just happen to have a spare one laying in a box doing nothing at the moment SOOOOOO what can go wrong ? Chris... Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted October 22, 2021 Share Posted October 22, 2021 So I took out the "four" and dropped in the "V eight ",so its a 138 gm compared to 68 gms ,without a lipo ,it comes in with 18 deg hang,,,so did you have to put a brick in the boot?? Chris... Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted October 22, 2021 Share Posted October 22, 2021 (edited) 13 hours ago, Chris Dowell said: So I took out the "four" and dropped in the "V eight ",so its a 138 gm compared to 68 gms ,without a lipo ,it comes in with 18 deg hang,,,so did you have to put a brick in the boot?? Chris... Funny thing is I fitted a D2826-1100Kv motor and mine was tail heavy that is why I fitted the bigger motor. The D2826-1100Kv is spec at 51g on HobbyKings site. With regards to the build I stuck to Richards Design specs and materials, however you did not and used a arrow shaft for the tail boom could it be that your build is lighter at the rear end ?. I still have to weight mine which I will do tomorrow to find out the AuW. I have a full set of build pictures which I can share after publication. In fact as mine can be un-bolted I could weight all the parts separately for reference. Steve. Edited October 22, 2021 by Stephen Jones Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted October 23, 2021 Share Posted October 23, 2021 Thanks Steve I have always managed to "Build Light" and that could be the reason in this case .I do bereave that the arrow shaft could be lighter than wood . My original construction DID actually follow Riches instructions ( for a change) with the initial build as was shown in my video but I have made some mods to the appearance on the tail boom. I did send a pic of the model to Rich for his perusal. Just weighed it and model only with EMAX 2815 09 12 X 6 prop no lipo no rotor comes in at 670gm. Looks like I may have to add about 40-50 gms to the tail. I have never had to add weight to the tail of any autogyro before this . Chris... Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted October 23, 2021 Share Posted October 23, 2021 Hi, I could not find my digital scales, my workshop is a bit cluttered at present so I have used my partners cooking scales which are mechanical and cheap. It is 2 Lbs so could be right I would like to weigh all the parts separately but I need to find them scales 1st. Steve ? Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted October 23, 2021 Author Share Posted October 23, 2021 Chris, You can easily move your battery rearwards. Rich Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted October 24, 2021 Share Posted October 24, 2021 Well with the battery at the rear of its compartment and 20gms added to the fin ,the weight with lipo and rotor is 1085 gms ,ready to fly with a 16 deg hang and that gives me 4.95 OZ/ sq FT loading which is pretty good . It's just that it seamed so much heavier with the larger motor ,but in fact it must have been pretty light with the smaller one. I'm hoping to get it out next week and try for some of those pylon turns, just like Steve.? Chris... Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted October 24, 2021 Share Posted October 24, 2021 (edited) Hi, I finally found my Digital scale and have weigh the Gyroo ! then I weighed the parts separately. Firstly let me congratulate Chris on his light build. So 1st off I weigh the Lipo battery as this is needed not only to power the model but to achieve correct balance as it fits in-between P2 - 3s 2200mAh Turnigy 20-30c = 190g My Blades as a set including the Delta plates all bolted as one ready for bolting onto the C30 head. = 134g Tailplane -Fin with rudder and control horn and Fin packers Covered ready for use = 33g Tail Boom covered ready to slot into the body and Tailplane = 25g Tailplane - T1 - T3 skid ready to fit to boom and Fin = 17g Main body - Rotor boom - C30 head - all covered with servos - 40Amp Esc - Motor - Rx - Undercarriage and wheels all ready for boom to be fitted = 571g Nuts and bolts for bolting boom to the body and Tailplane and rudder connecting rod = 20g Giving +/- 1g for each time I measure each part separately their is a difference between the final weight of My Gyroo as a complete model ready to fly = 999g Hopefully this will serve as a guide for others wishing to build this Great Autogyro. Cheers Steve. Edited October 24, 2021 by Stephen Jones Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted November 16, 2021 Share Posted November 16, 2021 I finally was able to retest this model with the larger motor as Steve has and was happy with the "sparkling performance". I found the flight very punchy and quite different from my first rather sedate flight. I can recommend this motor set up. Chris... 1 Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted November 16, 2021 Share Posted November 16, 2021 Nice one Chris. Well worth the change ?. What size prop did you go for ? Steve. Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted November 16, 2021 Share Posted November 16, 2021 (edited) I took these out flying this weekend and although the weather was bright and sunny with very little wind the ground was very wet and soggy. The Gyroo had no problems taking to the skies. ? Steve Edited November 16, 2021 by Stephen Jones typo 1 Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted November 17, 2021 Share Posted November 17, 2021 Yes Steve ..quite a moover now. I use a 12 X 6 with this motor...I do like your collection and have been watching with interest your videos and the progression of the Liddle glider...and am waiting for the VTOL version ?? That bat looks interesting. Cheers Chris... Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted November 18, 2021 Share Posted November 18, 2021 2 hours ago, Chris Dowell said: Yes Steve ..quite a moover now. I use a 12 X 6 with this motor...I do like your collection and have been watching with interest your videos and the progression of the Liddle glider...and am waiting for the VTOL version ?? That bat looks interesting. Cheers Chris... Thank`s Chris, Yes 12x6 is the right prop for that motor. And wait no-longer the VTOL version is here. Steve. ? Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted November 18, 2021 Author Share Posted November 18, 2021 Nice job Chris, loops will be a doddle now! no pressure for a video......... I'd be interested to know where the CG has ended up on your and Steve's over powered Gyroo's? When you guys get chance could you take a measurement from the front of the mast at the fuselage top forwards? Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted November 18, 2021 Share Posted November 18, 2021 4 hours ago, Richard Harris said: Nice job Chris, loops will be a doddle now! no pressure for a video......... I'd be interested to know where the CG has ended up on your and Steve's over powered Gyroo's? When you guys get chance could you take a measurement from the front of the mast at the fuselage top forwards? I will check again tomorrow but I think mine balanced as per plan. Steve. Quote Link to comment Share on other sites More sharing options...
Chris Dowell Posted November 19, 2021 Share Posted November 19, 2021 Rich According to the plan....I'm way out I have 85mm from front of carbon mast to the balance point with lipo and model in the horizontal position and no rotor. Is that the way you want it? The blades that I made for this model are 700 x 60 using 2mm hardwood base to the whole blade with hardwood L/E and then all depron for the rear top of the blade .No balsa used in there construction. Steve Very nice but VTOL The L is for LANDING? Chris... Quote Link to comment Share on other sites More sharing options...
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