Simon Chaddock Posted August 21, 2014 Share Posted August 21, 2014 Tony 8lbs. Wow! Not exactly the most aerodynamically efficient airframe so at least 800W? That way out of my league! Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted August 21, 2014 Share Posted August 21, 2014 When it comes to building in Depron, Tony and I seem to have something in common! I would have thought though for a 100" long model like this, it's still quite a lot lighter than a conventional build. My next attempt with this mystical material is going to follow your techniques Simon, though I confess in a simplified manner! I want to see what I can do with it. (It should at least be funny). Quote Link to comment Share on other sites More sharing options...
Erfolg Posted August 21, 2014 Share Posted August 21, 2014 Tony, that works out at about 4 ft^2 for the actual wings. Which would suggest about 32 oz ft^-2. I am not sure if that is high for a model of that size, seems high. If it is high, you will be flying briskly or maybe some weight reduction or an increase in wing area? If not high all is well. I guess you can measure the wing area? Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted August 21, 2014 Author Share Posted August 21, 2014 the main wing is 48 inches span with a root chord of 26inches, tip chord is 7inches. so 24 x 33 should give a wing area. 792 square inches. or 5.5 square feet. 8lb is 128 oz. so that is about 23oz per square ft of wing. ok i think 8lb is erring on the heavy side for the finished model. the vulcan has come in at 6lb plus the battery. so somewhere round 6 to 8lbs should be the finished target weight. Quote Link to comment Share on other sites More sharing options...
Erfolg Posted August 21, 2014 Share Posted August 21, 2014 On the positive side, at the higher end of the wing loading, it should handle rough air somewhat better than a lightly loaded wing. Also, there is always the option to build a bigger wing, if thought desirable. I have noticed that many propriety scale models take liberties with wing and tail areas, often thining the body down, so a bit of licence is not unusual. Quote Link to comment Share on other sites More sharing options...
Martian Posted August 29, 2014 Share Posted August 29, 2014 There is a very good article on the TSR and Vulcan in the latest edition of FlyPast Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 5, 2014 Author Share Posted September 5, 2014 been plodding on slowly. want to sort the retracts, motor and fitting out next, then i can finish the covering. Quote Link to comment Share on other sites More sharing options...
Martian Posted September 6, 2014 Share Posted September 6, 2014 it's certainly impressive Tony Quote Link to comment Share on other sites More sharing options...
Mark Kettle 1 Posted September 6, 2014 Share Posted September 6, 2014 You only have to count and add up the 600 mm sized slabs to realise how long it is. Excellent Tony. Quote Link to comment Share on other sites More sharing options...
Andrew Price 2 Posted September 6, 2014 Share Posted September 6, 2014 WOW!! Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 16, 2014 Author Share Posted September 16, 2014 back from me hols and we plod on again. Quote Link to comment Share on other sites More sharing options...
Cliff Bastow Posted September 19, 2014 Share Posted September 19, 2014 Hi Tony, Looking very good, having looked around the full size at Duxford on Sunday I am watching this build with interest. It certainly is an inspiring looking machine and way ahead of its time. I dont want to start old arguments about the rights and wrongs of cancelling it, but the whole aerospace hall filled me with pride about what we used to be able to do as a nation, and think about what we have become. Rant over and good luck with the build and flying. Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 19, 2014 Author Share Posted September 19, 2014 still working on her. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted September 19, 2014 Share Posted September 19, 2014 You are gonna need a bigger tent and car for that one Tony John Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 19, 2014 Author Share Posted September 19, 2014 nose comes off in front of the jet intakes for transport. Quote Link to comment Share on other sites More sharing options...
Keith Simmons Posted September 20, 2014 Share Posted September 20, 2014 Looks great Tony. Can see the yellow clamps holding the front section to the rest of the aircraft. Will the nose be mostly empty, apart from the front nose gear? With the batteries, radio receiver etc within the wing in front of the main gear. I believe building it in depron is the wise choice. Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 20, 2014 Author Share Posted September 20, 2014 the idea is to have nearly everything place round the c of g area then i hope it is just a case of moving the battery about till i have it balanced. Quote Link to comment Share on other sites More sharing options...
Keith Simmons Posted September 22, 2014 Share Posted September 22, 2014 Many thanks Tony & I concur your way of thinking. I am keen to know where the c of g is and how sensitive it is. I would love to build mine at 80" long & 38" span for 1/12th scale. Maybe if should go for 40" span & aim to put a pair of 89mm EDF's. Would a all moving fin & tailerions and flaps for the main wing be advisable as per full size. Edited By Keith Simmons on 22/09/2014 16:39:21 Quote Link to comment Share on other sites More sharing options...
Mark Kettle 1 Posted September 22, 2014 Share Posted September 22, 2014 Careful Tony with that one you'll poke someone's eye out. Great isn't it ? Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 22, 2014 Author Share Posted September 22, 2014 i have kept mine simple by having fixed tail planes with elevators, same with the fin and rudder. over complication leads to extra weight. i was just test gliding it out of the bedroom window, honest. Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted September 22, 2014 Share Posted September 22, 2014 Looking brilliant Tony. Soon be time to make the chuck glider and get the cg sorted! Quote Link to comment Share on other sites More sharing options...
Mark Kettle 1 Posted September 23, 2014 Share Posted September 23, 2014 Early learning blocks.....or Lucas engine management control system boxes? Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 23, 2014 Author Share Posted September 23, 2014 avionic units. i hope. well it adds a small bit of detail anyway. not going mad on detail though. Quote Link to comment Share on other sites More sharing options...
Martian Posted September 23, 2014 Share Posted September 23, 2014 it looks good Tony and you just can't help yourself when you suffer from detailitus Quote Link to comment Share on other sites More sharing options...
Mark Kettle 1 Posted September 23, 2014 Share Posted September 23, 2014 LOL , I've got that I swear! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.