Comper Posted April 1, 2022 Share Posted April 1, 2022 I built the Boulton Paul Defiant (Chris Gold plan ) but not flown it yet . The model is electric powered with 6s lipos and retracts and flaps. Has anyone built this model and flown it yet 12 Quote Link to comment Share on other sites More sharing options...
Nigel R Posted April 1, 2022 Share Posted April 1, 2022 Can't say I have. But she looks a good one. I do like the turret on the defiant ? 1 Quote Link to comment Share on other sites More sharing options...
Cuban8 Posted April 1, 2022 Share Posted April 1, 2022 (edited) Just like to say that the model looks really great and is a nice change from the usual suspects! One of my favourite WW2 subjects, have you seen the full size nightfighter version at the RAF Museum at Hendon? It's a huge thing and it's a wonder that it performed as well as it did on the early Merlin engine. Having a break from balsa bashing at the moment and I've just started an Airfix 1/72 Defiant - plan to do the nightfighter colour.......black! As for your model, I understand the advantages of electric and can see why many would want to go that route ( I see the plan was designed around electric, so fair enough) but a pity a nice Laser isn't up front - pays your money etc. What retracts did you use and what is its all up weight? Have you taken any wattage readings? I have a couple of 6 cell leccy aerobats and find duration is around the 6-8 minute mark depending on how crazy I'm feeling or 10 minutes just cruising - any idea what you're expecting from your setup when flown in a scale like manner? Well done, look forward to seeing some flying vids.? Edited April 1, 2022 by Cuban8 1 Quote Link to comment Share on other sites More sharing options...
Comper Posted April 1, 2022 Author Share Posted April 1, 2022 I mainly fly ic and have a laser 80 in the BT Hurricane great engines, but for a change I thought I’d go the electric route. I did some tests with the motor and there’s more than enough power but can’t remember the figures as for ic I’m not one for overpowering scale models. the model will have its maiden flight this spring so will put up a picture if all goes well. Quote Link to comment Share on other sites More sharing options...
Comper Posted April 1, 2022 Author Share Posted April 1, 2022 (edited) Sorry didn’t mention retracts are eflite and weight 8.5 lbs Edited April 1, 2022 by Comper Quote Link to comment Share on other sites More sharing options...
Cuban8 Posted April 1, 2022 Share Posted April 1, 2022 Wow.......8.5lbs for such a large trad built model is very light indeed. Did you modify the structure from the plan at all? Quote Link to comment Share on other sites More sharing options...
Comper Posted April 1, 2022 Author Share Posted April 1, 2022 Very careful with the wood behind the c.g. I also put a bit more curve onto the formers with strips of 1/8 balsa and shaping to take the flat look off the sides of the fuselage, but other than that built it as per plan. 2 Quote Link to comment Share on other sites More sharing options...
Bucksboy Posted April 1, 2022 Share Posted April 1, 2022 Yours looks great, I’ve got the same plan and semi kit with mouldings awaiting a build. I too normally fly ic and was tempted to go electric on this one. Quote Link to comment Share on other sites More sharing options...
Trevor Crook Posted April 2, 2022 Share Posted April 2, 2022 That looks really good, and it should fly well with that wing loading. My 1.5m Avios Spitfire and my son's 1.6m Flightline Spit will both fly for a safe 8 minutes plus on 6s 3300s, which is fine for us. Far easier to get better scale appearance with electric - you can swing a scale prop, and, with an inline water-cooled fighter, no chunks of aluminium poking out of the cowl. 2 Quote Link to comment Share on other sites More sharing options...
leccyflyer Posted April 2, 2022 Share Posted April 2, 2022 Nice job Comper. I have a couple of these Defiant plan packs from Sarik Hobbies, with various extras and one day will definitely build one. The Chris Gold Defiant was featured in a recent RCM& E, so you should get some ideas from that article. Your rendition of the model looks very nice indeed - best of luck with your maiden flight to come. ? Quote Link to comment Share on other sites More sharing options...
Harry Curzon 1 Posted April 4, 2022 Share Posted April 4, 2022 Yes, I built it from the Sarik short kit, been flying it for a year, it flies very very well! Mine was featured in the January RCM&E. I use 6S 5000 through a Ripmax Quantum 61, I fly until 70% capacity (3500mAh) is used and am getting 10-12 minutes of flying, mostly very low long passes at which it excels due to very good stability. I made a working turret which uses 4 channels and is controlled by transmitter sequencers. I just switch it on or off. The fuselage fairing drops out of the way, the turret rotates back and forth nearly 180 degrees, the guns go up and down, and the muzzles flash. That and the tail heavy design or wood meant a lot of lead up front and it comes to a whopping 13lbs. Yet it gets airborne off grass by the time I get to 3/4 throttle, and it lands quite gently. Full flap is like running into a brick wall so be ready with more power and nose down. Lovely flying model, I haven't a bad word to say about its handling. 7 Quote Link to comment Share on other sites More sharing options...
Comper Posted April 4, 2022 Author Share Posted April 4, 2022 Thanks for the info Harry that makes me confident enough to get the Defiant out, also I must get the turret working under power when it’s flying but I’ll wait until it’s flown first Quote Link to comment Share on other sites More sharing options...
Trevor Crook Posted April 4, 2022 Share Posted April 4, 2022 Lost in admiration for you guys! Quote Link to comment Share on other sites More sharing options...
Harry Curzon 1 Posted April 4, 2022 Share Posted April 4, 2022 (edited) The turret doing its thing. It has to whizz about like a demented Dalek or you cannot see it in flight! Edited April 4, 2022 by Harry Curzon 1 6 Quote Link to comment Share on other sites More sharing options...
Harry Curzon 1 Posted April 4, 2022 Share Posted April 4, 2022 Defiant flypast... 6 Quote Link to comment Share on other sites More sharing options...
Harry Curzon 1 Posted April 4, 2022 Share Posted April 4, 2022 Defiant landing, slower than I expected with its 13lb weight 10 Quote Link to comment Share on other sites More sharing options...
Comper Posted April 4, 2022 Author Share Posted April 4, 2022 Brilliant Harry hope mine fly’s as well, the turret is amazing I won’t be able to beat that Quote Link to comment Share on other sites More sharing options...
Torsten Spitzner Posted April 5, 2022 Share Posted April 5, 2022 Very nice. Quote Link to comment Share on other sites More sharing options...
Leslie Crane 1 Posted June 23, 2022 Share Posted June 23, 2022 Hi, I too built the Chris Golds Defiant which appeared in the RCME Feb or March. Mine is the all black night fighter version, also 6S 5000. It has not yet flown and only has a manual turret. I still have to balance it and set control surface travel and dual rates just in case. Obviously don't know the all up weight yet. Delay is due to finishing the RBC Tempest V which maidened last week and flew lovely (see video on SRFC/BMFA website) and completing the final setting up of the Tony Nijhuis Typhoon which is now waiting for better weather (lighter winds) for my test pilot to maiden it. Have to say your Defiant looked great in the flying vids, hope mine looks and flies as well. Les 1 Quote Link to comment Share on other sites More sharing options...
Comper Posted June 24, 2022 Author Share Posted June 24, 2022 Great Leslie I’m pleased the Defiant is getting shown a bit more . My model has still not had its maiden flight yet but hopefully in the next couple of weeks. I’ve got the CG 115 mm back from the leading edge, Harry and Leslie can you tell me where your models balance please. Good luck with the maiden Leslie hope it flys as well as Harry’s Quote Link to comment Share on other sites More sharing options...
Bucksboy Posted June 24, 2022 Share Posted June 24, 2022 It’s good to see a few Defiants at last. I’ve just started on mine and I’m starting with the tail. The plans show the elevator servos in the tail. Can I ask, did you all follow that or move them forward? Thanks! Quote Link to comment Share on other sites More sharing options...
Comper Posted June 24, 2022 Author Share Posted June 24, 2022 Hi I put my servos in the fuselage well forward with pushrods but can’t see any problem sticking them at the back 1 Quote Link to comment Share on other sites More sharing options...
Harry Curzon 1 Posted June 29, 2022 Share Posted June 29, 2022 Mine is balanced as per the plan. I fitted elevator servos at the tail but that required a lot of useless lead at the front to balance. Quote Link to comment Share on other sites More sharing options...
Bucksboy Posted June 29, 2022 Share Posted June 29, 2022 Thanks for the replies. Convention says not to put servos in the tail as it needs lead to balance. However, I’m happy to accept that most plane designers know a lot more than me. So I thought I’d check, I’ll try and fit my servos in the fuselage to keep tail weight to a minimum. Quote Link to comment Share on other sites More sharing options...
Comper Posted July 13, 2022 Author Share Posted July 13, 2022 The Boulton Paul Defiant had its maiden flight at last 12th. July. the model flew great well pleased 11 Quote Link to comment Share on other sites More sharing options...
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