I’ll grab what I have for the plans and sketchup file and post tonight if I can get to it. The flattening of objects in sketchup worked well for some components, but not all. The wing shape was perfect and I custom built spars after I shaped them like Flitetest master series wings. I added circular formers into the wing structure then skinned it. The actual build was similar to the mockup but I had to custom fabricate a few pieces such as the canopy. The entire nose section was removable and the battery and ESC sat below the wing which was accessed with the nose removed. Lessons leaned. I used too many formers. The skin adds plenty of structural support. I only used elevons and should have added ailerons. I should have increased the diameter to allow a bit more air flow.
Anybody else scratch building tonight?
- Thread starter K3V0
- Start date
FishbonesAir
Active member
Nice! I've been pondering getting a pair of EDFs and trying to build a S-3 Viking. Seems like it might be a good flyer.
L Edge
Master member
What is the distance of inlet to fan and distance from fan to exit? Did you make a duct or is there just ribs?
How about a video?
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The fan sits at the intersection of the wing trailing edge about 20" from the nose of the aircraft. It's almost the identical distance from the outlet. I used tagboard for a thrust tube. The entire nose section is removable and is held in place by a couple of foam posts the fit into slots in the nose section rear former. The battery sits on the bottom and slides into a hole in the bottom of the formers and then the nose slides over the battery.
FlyerInStyle
Elite member
what plane
MJSantito
Member
The FT F-16. Going to try out some 9g metal servos for the elevators.
Attachments
Shurik-1960
Well-known member
For 5 years I have been buying servomechanisms from this seller and so far there is not a single broken one. https://aliexpress.ru/item/32680024...it.29.78eb4aa6UNrpya&sku_id=12000018882131559
FlyerInStyle
Elite member
I built mine and it is really underpowwered on the 4s htat was recommended on mine.
MJSantito
Member
I was planning on using a 6s 5000Mah 50C battery. Just a question of which brands are solid and hold up to the advertised spec. I've noticed a lot of brands and a lot of complaints about them. I haven't been in the electric side of the hobby for very long (old school gas and nitro guy) so its been a lot of hunting and poking for reviews and info.
FlyerInStyle
Elite member
VALUE HOBBY batts and edfs seem to be very popular and trusted for a cheap price
tomlogan1
Elite member
RCBattery.com is a good source. Pricing is pretty good and shipping is fast.
The Fopster
Master member
Had a successful maiden of a scratch built 64mm EDF design yesterday. It’s made from 6mm insulation foam (a bit like depron) because I can’t find flitetest foamboard in the UK at the moment. It was a fairly simple build and flew well from the off. Just need to add finish a few details and add some colour - it’s very hard to see against a white cloudy October sky!
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