That looks sweet!
Having a go at a Master Series type design
- Thread starter The Fopster
- Start date
The Fopster
Master member
The wingspan is 1.2m, roughly the same size as the FT master series planes. 300g was just for the wing (😮) but it is very strong! As long as the plane comes in under a kilo ready to fly I'm sure I will be OK.
The Fopster
Master member
A very geeky post this evening...
Last significant design decisions were sorted today. I wanted to do a removable wing - I've done one on my MS P47 that straps in with Velcro, but after seeing a really slick system on a Corsair on YT wanted something a bit better.
So - the battery box is extended rearwards so the wing can hook in directly, and all the flight loads from motor, wing and battery mass all go directly through the battery box.
The front of the wing has a section of the upperb surface removed up to the spar, which has a wooden strengthening brace with two location pins inserted (tongue depressor stick and bbq skewers respectively). The wing slides forward onto the pins, locating the leading edge.
At the rear, a box structure added below the battery box carries another locating pin (to locate the rear of the wing laterally) and a magnet off a conference delegate badge (which had been in my useful junk box for several years) to hold the wing in place.
Fitting is very quick - slide the front onto the pins, then drop the rear with a very satisfying "clunk" sound onto the rear pin and magnet. It works!
Here are the dull pictures.
Last significant design decisions were sorted today. I wanted to do a removable wing - I've done one on my MS P47 that straps in with Velcro, but after seeing a really slick system on a Corsair on YT wanted something a bit better.
So - the battery box is extended rearwards so the wing can hook in directly, and all the flight loads from motor, wing and battery mass all go directly through the battery box.
The front of the wing has a section of the upperb surface removed up to the spar, which has a wooden strengthening brace with two location pins inserted (tongue depressor stick and bbq skewers respectively). The wing slides forward onto the pins, locating the leading edge.
At the rear, a box structure added below the battery box carries another locating pin (to locate the rear of the wing laterally) and a magnet off a conference delegate badge (which had been in my useful junk box for several years) to hold the wing in place.
Fitting is very quick - slide the front onto the pins, then drop the rear with a very satisfying "clunk" sound onto the rear pin and magnet. It works!
Here are the dull pictures.
Attachments
The Fopster
Master member
Nearly the last piece of the jigsaw done tonight. Stabiliser cut out, with bbq skewer embedded for stiffness. Slots are cut in the fuse, and it seems to line up square with everything and parallel to the flat bottom of the wing. Phew! Now I just need to sort the cowl, and get the rear servos installed (once the postman delivers them!). Stuck it on the scale, and it's doing quite well for weight so far - should easily be under a kilo RTF. I REALLY hope it flies well, because it LOOKS nice!
The Fopster
Master member
Getting close now. Servos arrived in the mail and are fitted. Found some time today to make the cowl, and mocked up the spinner to check the size - looks about right. Just needs a power pod and receiver and it's ready to maiden. Time to scan the weather forecast!
The Fopster
Master member
Well it flies! I guess now I'll have to paint it as it seems to be able to get up and down in one piece. Maiden weather was a bit windy (I cut most of the audio from the video - it was just annoying wind noise) but it flew OK except it needed way more down trim than I could add on the TX. I will adjust the wing incidence to fix that (hopefully). Otherwise it went fine - phew!
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Daniel Liutan
Well-known member
The Fopster
Master member
After the maiden of the Sea Fury I reduced the wing incidence and went out yesterday to re-maiden it. Things did not go entirely to plan.
On the upside, it flew great. The down-trim was now way OTT, so I tried to trim it out as I flew. Plane was stable and responsive. I was standing in a different place in the field to avoid having the low sun in my eyes, and as a result was much closer to a line of trees than usual...
Made a turn back towards myself, and it became evident that the plane was not, as I thought, in the main part of the field with me, but in fact on the other side of the line of trees. This was confirmed when there was a loud bang and the plane halted with impressive rapidity high up in a tree.
The fuselage carried on through with considerable damage, leaving the tail and wings about 30 feet up in the tree. I did the walk of shame home carrying the bits that came down, but went back today to see if I could get the wing back, To my great joy the wing and remnants of the tail have come down in the wind overnight, and I was able to bring them home.
I'll attempt a repair next week when a few "life" things have been dealt with. Then I will do a clean build of V1.1 with some mods and improvements...
Ouch!
On the upside, it flew great. The down-trim was now way OTT, so I tried to trim it out as I flew. Plane was stable and responsive. I was standing in a different place in the field to avoid having the low sun in my eyes, and as a result was much closer to a line of trees than usual...
Made a turn back towards myself, and it became evident that the plane was not, as I thought, in the main part of the field with me, but in fact on the other side of the line of trees. This was confirmed when there was a loud bang and the plane halted with impressive rapidity high up in a tree.
The fuselage carried on through with considerable damage, leaving the tail and wings about 30 feet up in the tree. I did the walk of shame home carrying the bits that came down, but went back today to see if I could get the wing back, To my great joy the wing and remnants of the tail have come down in the wind overnight, and I was able to bring them home.
I'll attempt a repair next week when a few "life" things have been dealt with. Then I will do a clean build of V1.1 with some mods and improvements...
Ouch!
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The Fopster
Master member
Repairs started. Wing was surprisingly intact, and servos still work. A bit of hot glue and I think it's OK to fly. Rear of fuselage stuck back on, as it was a clean break, and the nose quickly hot glued. I've decided to make this flyable quickly and roughly and fly the heck out of it while I build a much cleaner V1.1 with some things I've learnt from this one included in the design. Onwards and (hopefully) upwards!
The Fopster
Master member
OK - repairs done (roughly - it's not a hangar queen anymore!) and flew again today. Nice calm day, and after increasing aileron throws and lots of downtrim it flew pretty well. I'm only a newb pilot so just some slow scale-ish aerobatics, but pretty pleased with how it went (including nice big loop even thought it's only flying on a 3s battery). I'll paint this one roughly then build a nicer V2 sometime...
BATTLEAXE
Legendary member
I think in fixing it you got it to fly better, great job!
keepitup
Active member
Slick!!
Wow, that flew amazing! Great job.
Rhaps
Elite member
Looks really good in the air
The Fopster
Master member
We had good weather here in the UK today - warm and sunny, but very breezy - so I took advantage and set up a garden paint booth to paint the repaired Sea Fury. I had to choose a scheme that I could approximate with colours I had left over from other home and hobby projects, as of course the shops are all closed. I had white and grey rattle cans and some coloured packing tape, so I've gone for a Canadian Navy scheme VG-ZZA. It should be "Sky" rather than white, but it'll have to do. I'm hoping the high viz red wing tips (and horizontal stab, when I get that done) will help with orientation.
Despite the not inconsiderable damage from trying to fly through a tree, it's looking OK. I'll finish it up in the next few days, then I just need to fly the heck out of it whilst I work out a few ideas for the next design, which will be quite different...
Despite the not inconsiderable damage from trying to fly through a tree, it's looking OK. I'll finish it up in the next few days, then I just need to fly the heck out of it whilst I work out a few ideas for the next design, which will be quite different...
whackflyer
Master member
That is beeeaaauuutiful!!
BATTLEAXE
Legendary member
That will be so easy to see in the air. Thumbs up on the livery
