Bonzo Moon Posted January 10, 2021 Share Posted January 10, 2021 Hopefully you've seen my Lidl + foamboard Vulcan maiden, now here's the maiden of the all foamboard Vulcan that inspired my Lidl version. It flew really well, very fast, not slow and easy like my Lidl based one. Plans and the build blog article for this are linked below. 2 sheets of foamboard. Easy to build in an evening. The article about the original foamboard Vulcan with motor spec etc. is here **LINK** full plan here **LINK** tiled plans here **LINK** Quote Link to comment Share on other sites More sharing options...
MaxG Posted January 10, 2021 Share Posted January 10, 2021 Why not use your ramp with a small bungee, Probably made from several large elastic bands and say a 3 metre length of twine. You just need to get it flying and then open the throttle when it is off the ramp. Just a thought Maxg Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 10, 2021 Author Share Posted January 10, 2021 Good idea, someone on another group suggested similar, like catapult launch. I'll have a think about it! Quote Link to comment Share on other sites More sharing options...
Cliff 1959 Posted January 10, 2021 Share Posted January 10, 2021 That looked like fun, cold fun, but fun never the less, well done on a great looking ship Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 10, 2021 Author Share Posted January 10, 2021 Thanks Cliff, it was fun after I'd recovered from the speed. As I said in the video, almost lost it when it was in the low sun! Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted January 10, 2021 Share Posted January 10, 2021 Lovin' your Mad Antics Bonzo. I can drive my van again now so will be doing some of the same but with Rubber power. D.D. Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 11, 2021 Author Share Posted January 11, 2021 Posted by Dwain Dibley. on 10/01/2021 22:39:32: Lovin' your Mad Antics Bonzo. I can drive my van again now so will be doing some of the same but with Rubber power. D.D. Nice one mate. Enjoy yourself! Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 11, 2021 Share Posted January 11, 2021 Bonzo, suitably fired with enthusiasm, I am going to make one of these. So far, I cannot find A1 sheets of 6mm board only 5mm. Where did you get yours from?. I have found the same motor etc. was it powerful enough or would it be worth getting something bigger? Great lockdown project, thanks for the idea! Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 11, 2021 Author Share Posted January 11, 2021 Hi mate, Hobbycraft. 4 sheets A2 for a tenner . Only needs 2 sheets. And I use a glue gun. Mine was Amazon I think about a fiver. Download tiled plans stick them together with clear tape , mark up board and cut out! Seems like they may still be open despite lockdown. My local one says open Tuesday? Hobbycraft re the motor, well and truly big enough! Very quick full chat, OK at half throttle. I'm using a 3 blade 5045 Dalprop Props Mine was slightly scaled down, I didn't realise till after I'd built it that my printer had scaled down the pages. I found out when I measured and found the slot I'd cut for the the prop they suggested wasn't big enough! Mine is 28 inches span, design span 29 3/4 inches. The 3 blade is great with it. They say use 7 x 4. I think the 35 amp ESC is overkill too. Edited By Bonzo Moon on 11/01/2021 21:49:57 Edited By Bonzo Moon on 11/01/2021 21:52:29 Edited By Bonzo Moon on 11/01/2021 21:54:34 Edited By Bonzo Moon on 11/01/2021 22:08:29 Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 11, 2021 Share Posted January 11, 2021 Many thanks So yours was strong enough with 5mm Foamboard? E.calc came out at 2:1 on a 10x4 APC Speed! Will have a look at 3 blade......good idea. Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 11, 2021 Author Share Posted January 11, 2021 Just added more info. The Hobbycraft stuff was great, I've used loads for models, le some Flight Test ones. My Nose Job modified Versa. Plans on Flight Test for loads of foamboard stuff. It's addictive! Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 11, 2021 Author Share Posted January 11, 2021 Tell me more about e calc please! Got it, Googled. I think I may have used it years ago when I converted an IC Wot 4 to electric. Useful, thanks for reminding me of it. I've just glued together one of these with another 2 sheets of spare foamboard. RM 1 Supersonic Russian fighter Not using the motor they suggest, very expensive, I think I've found another suitable one. I'll have to see what e calc says! Edited By Bonzo Moon on 11/01/2021 22:20:29 Edited By Bonzo Moon on 11/01/2021 22:21:43 Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 12, 2021 Share Posted January 12, 2021 I paid e.calc. $6 to get full access to the prop calc section. Subscription is for a year. What size 3s Lipo would you suggest is best for balance / duration ? Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 12, 2021 Author Share Posted January 12, 2021 Thanks for the info about e calc, I looked at the site and couldn't figure how to get answer, the subscription explains it. Re battery: I used a 3s 1300 mA and current draw full throttle was 160 watts which I think IV=W means 13 amps, so would mean 6 mins max flat out. It was a bit too quick for me flat out but cruised well at half throttle so I reckon you'd expect 10 mins mixed flying? edit: I just checked on my raw video and I flew just over 2 mins and the Lipo was at 11.9v afterwards. 85% so you should easily get 10 mins + mixed flying. I guess you could go bigger battery, but bigger means more weight of course. My servos are placed further back than they show and so my battery had to go further forward. If you went bigger than my 1300 mA you'd need to put the battery out on the nose I think. Edited By Bonzo Moon on 12/01/2021 10:59:07 Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 12, 2021 Share Posted January 12, 2021 That,s great, thx. Just started cutting out the plan, exciting times! Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 12, 2021 Author Share Posted January 12, 2021 Indeed, foamboard builds come together so fast! Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 12, 2021 Share Posted January 12, 2021 Mine came out at 28" span as well, tried upping the print to 110% but things started to get out of line! So it looks like the default is 28". There are a few inaccuracies on the plan, but nothing drastic. I purchased A1 sheets, so can make the fus in one section. Been thinking about launching................should be fun!. So far...so good! Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 12, 2021 Author Share Posted January 12, 2021 Yes that's weird. The spec on the plan says 29.75 inch span. Nice easy build, if you can call it that with foamboard! Post video or pics if you can! Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 12, 2021 Share Posted January 12, 2021 Just started cutting out the plan, and as I am getting A1 foamboard, I am hoping to make the base of the fuz in one piece. Bit of juggling with the plan as one wing is longer than the other!. Found some 1350 33c lipos which should do the job. Everything else I have either got or its on its way from Banggood!. Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 14, 2021 Share Posted January 14, 2021 Bonzo, as the prop is mid wing, I was going to use a Standard prop (not a pusher). Does that sound ok?. Quote Link to comment Share on other sites More sharing options...
Bonzo Moon Posted January 14, 2021 Author Share Posted January 14, 2021 Hi mate Sorry mate but there is actually no such thing as a pusher prop! As long as a prop is mounted with the size info on the hub of the prop facing the direction of flight a prop doesn't care if it's in front pulling a plane, or mounted mid or behind pushing it. It is still 'pulling' the air towards it and causing thrust whether pulling or pushing a model. RC Groups discussion here! I used a 3 bladed 6045 Gemfan. Put up some video of the maiden! Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 24, 2021 Share Posted January 24, 2021 Yes, just realised that thx. My small brain remembered the last pusher model I had was ic powered, so need a "pusher" prop. Model virtually complete and ready for test flight. Been a good little project. Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted January 24, 2021 Share Posted January 24, 2021 Bonzo.... Did you find the c/g on the plan about right? I have got a 3s1350 33c which should be ok. Quote Link to comment Share on other sites More sharing options...
David P Williams Posted January 24, 2021 Share Posted January 24, 2021 Posted by Bonzo Moon on 14/01/2021 21:19:23: Sorry mate but there is actually no such thing as a pusher prop! Sorry Bonzo - that may be true for you leccy flyers where you can choose which way you want the motor to turn, but for us i/c chaps where the engine only goes one way, pusher props definitely do exist. Quote Link to comment Share on other sites More sharing options...
Viv Letherby Posted January 24, 2021 Share Posted January 24, 2021 Yes definitely. I'm looking at one now it's a 10x6 Grish/Tornado prop. Although it's made as a pusher the leading edge is still on the name side of the hub. So it has to be mounted with the manufactures name to the prop drive! Edited By Viv Letherby on 24/01/2021 19:42:38 Quote Link to comment Share on other sites More sharing options...
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