Daren Cogdon Posted March 27, 2022 Author Share Posted March 27, 2022 Cheers for that. I noticed that, on the SBK, it states a minimum of 810kv. The motor I used in my first one was 1000, and was nowhere near gutsy enough to do anything more than straight and level flight. Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 4, 2022 Author Share Posted April 4, 2022 So, I eventually decided to build the whole thing from scratch again! Here's a photo of the current progress.The fuselage is made up from 5mm Westfoam for the sides, and 3mm for the formers, with thin card covering the upper sections. Wings are 3mm, with 5mm for the spars. The tail parts are 3mm. I'll install the servos etc later on this week, with any luck. 2 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 4, 2022 Author Share Posted April 4, 2022 This build is exhausting...! 1 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 4, 2022 Author Share Posted April 4, 2022 Building finished - just got to do fitting out and add the electrical bits.... 2 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 5, 2022 Author Share Posted April 5, 2022 (edited) So, my plan is to test-fly the beast before I paint it. Providing it makes it back in one piece after those initial test flights, I plan on giving it a generic RAF paint scheme so that it looks presentable, but practical. I'm interested to know what paints people have used in order to decorate their Spits? I've got some stuff that I had mixed up at B&Q for my last Spitfire, but I think this was too heavy for it. Edited April 5, 2022 by Daren Cogdon Pic for attention! Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 6, 2022 Author Share Posted April 6, 2022 Sorry, ignore the comment about paint - I forgot I had already asked that question! ? 1 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 14, 2022 Author Share Posted April 14, 2022 Ordered a motor and prop today for this one. Already got the 30A ESC from another aircraft. Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 16, 2022 Author Share Posted April 16, 2022 Motor and props have arrived, so going to commence installation soon! Quote Link to comment Share on other sites More sharing options...
Geoff S Posted April 16, 2022 Share Posted April 16, 2022 On 27/03/2022 at 12:34, Daren Cogdon said: Cheers for that. I noticed that, on the SBK, it states a minimum of 810kv. The motor I used in my first one was 1000, and was nowhere near gutsy enough to do anything more than straight and level flight. Just noticed this, so I may be a bit late to the party. The kv is not an indication of power. It's just a measure of unloaded rpm/volt. The power is a function of the prop you fit and the current drawn from the battery (and its voltage). A 1000 kv may spin at 12,000 rpm with a 3S LiPo (approx 12 v fully charged) which is quite good with a 12x6 prop. Note, figures are approximate and probably over simplified. In fact, higher powered motors generally have a low kv to allow for higher voltage batteries and bigger props. One of the most important motor specifications is the continuous current draw - going over that for any length of time lets the magic smoke out ? 2 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 17, 2022 Author Share Posted April 17, 2022 Hmm. That is something I wasn't actually aware of. That said, since my Spitfire is of a similar construction to Dad_flyer's version, and I'm anticipating the weight coming in perhaps a bit lighter, I went with the motor/prop combo he mentioned to be on the safe side. Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 20, 2022 Author Share Posted April 20, 2022 Added a simple canopy to the model. 3 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted April 29, 2022 Author Share Posted April 29, 2022 Getting back on to the subject of painting the model, did anyone use any kind of primer or varnish before painting their aircraft?? Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted May 15, 2022 Author Share Posted May 15, 2022 Rough as a badger's behind, but getting there..... Quote Link to comment Share on other sites More sharing options...
Eric Robson Posted May 16, 2022 Share Posted May 16, 2022 Hi Daren, I sand the maker foam paper with 400 grit wet or dry to get rid of the waxy surface and use paint testers from B&Q straight on to the surface. I also wrap the leading edge with printer paper or similar back about 1" using thinned PVA, this stops the covering lifting off the foam, if it is a straight taper wing like the Me110 I go back to a panel line on the wing. 1 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted May 17, 2022 Author Share Posted May 17, 2022 I'll bear that in mind for when I build my kit version (since it's the maker foam version, not the original). Anyway, here's the finished paint job. I still need to put on the fin flashes. Like I keep telling myself, this one is meant to be practical, not pretty.... 3 Quote Link to comment Share on other sites More sharing options...
J D 8 Posted May 17, 2022 Share Posted May 17, 2022 Still more spitfire than others I have seen and a hundred foot it will look good. 2 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted May 19, 2022 Author Share Posted May 19, 2022 The Spit now has its motor installed. Chelsea had to inspect.... 1 Quote Link to comment Share on other sites More sharing options...
Dad_flyer Posted May 19, 2022 Share Posted May 19, 2022 How is the balance? I needed quite a bit of weight up front, but it was heavy foam board and over enthusiastic painting. Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted May 20, 2022 Author Share Posted May 20, 2022 Haven't quite finished putting the electrics in, but will let you know. Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted May 20, 2022 Author Share Posted May 20, 2022 So, with the ESC, receiver and battery in it, we're looking at an AUW of 837g. At the moment, the plane balances on the second crease in the wing - roughly 85mm back from the leading edge. According to the plan, it should be something like 68.5mm. Quote Link to comment Share on other sites More sharing options...
Dad_flyer Posted May 20, 2022 Share Posted May 20, 2022 Pretty good there. You will need to get the CG forward to the plan position or it is a handful. I hot glued weight inside the cardboard cowl to over the motor. Stiffens up the cardboard and gets the weight forward. That was enough until I made it even more tail heavy. Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted May 21, 2022 Author Share Posted May 21, 2022 That's the plan for this weekend! 1 Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted May 23, 2022 Author Share Posted May 23, 2022 So, this Spitfire has ended up with 35g of nose-weight installed - which is only 5g more than what my first example needed. Quote Link to comment Share on other sites More sharing options...
Daren Cogdon Posted June 10, 2022 Author Share Posted June 10, 2022 (edited) Flite Test Spitfires breed like rabbits around here....! Haven't got to fly the camouflaged Spit yet due to the weather, but hoping that will change soon! Had to remove the spinner as it was off-balance when I ran the motor. The white airframe (empty) weighs in around 353g. The camo version is 858g fully loaded. Edited June 10, 2022 by Daren Cogdon 1 Quote Link to comment Share on other sites More sharing options...
Dad_flyer Posted June 10, 2022 Share Posted June 10, 2022 Looks great. Fully loaded includes battery? Quote Link to comment Share on other sites More sharing options...
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