Originally posted by Tonydoright
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Official Freewing Twin 70mm AL37 Airliner Thread
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Hugh "Wildman" Wiedman
Hangar: FL/FW: Mig 29 "Cobra", A-10 Arctic, F18 Canadian & Tiger Meet, F16 Wild Weasel, F4 Phantom & Blue Angel, 1600 Corsair & Spitfire, Olive B-24, Stinger 90, Red Avanti. Extreme Flight-FW-190 Red Tulip, Slick 60, 60" Extra 300 V2, 62" MXS Heavy Metal, MXS Green, & Demonstrator. FMS-1700mm P-51, Red Bull Corsair. E-Flite-70mm twin SU-30, Beast Bi-Plane 60", P2 Bi-Plane, P-51.
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You never know about the propellant - but you don't have to use spray paint in a can. You can pour your own color-matched paint into one of these, and pressurize it using regular air (from a bicycle pump or an air compressor).
The only trick is that you usually need to thin the paint, which takes a bit of experimenting. Most latex-based paints can be thinned with water. It takes a little practice but this is an option to consider, if you want to spray-paint your plane with colors or with a clear-coat.
This picture is just an example of one that I found on the internet, but there are many similar ones out there.
Marc flies FW & FL: AL37, MiG-29, T45,F4, A4, A10, F104 70 and 90, P38, Dauntless SBD, Corsair, B17, B24, B26 & P61, Lipp.P19, ME262, Komets, Vampire, SeaVixen, FMS Tigercat, FOX Glider & Radian XL.
Rabid Models foamies, including my 8' B17 & 9' B36... and my Mud Ducks! www.rabidmodels.com
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Originally posted by Scale Freak View Postanyone know the size of the wing mount screws? I seem to have lost 2 of them.
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Wild Man I am going to go ahead and nip this in the bud. We all know what the intimations were here and for all involved there's no place for politics in this forum. Let's keep it civil boys and talk airplanes. Thank you all in advance.My YouTube RC videos:
https://www.youtube.com/@toddbreda
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Originally posted by Scale Freak View PostI know this has been talked about somewhere in here, but has anyone doubled up the batteries on this plane? If so, what has the weight increase done in terms of takeoff roll, handling, etc? I'm considering two batteries, added extra weight of 720g, or about 1.5 lbs.
-GG
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Ok, on testing, with two batteries, they have to be 250mm back from the hatch opening. This puts the CG about 2mm ahead of where it was with one.
For this, I think i need to move the mount strap back. But my concern is the batteries are way beyond the plywood tray now, is that secure enough?
all up weight with 2 batteries is 4.96 kg or about 11 lbs
Is that withing this things capability?
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Originally posted by Scale Freak View PostOk, on testing, with two batteries, they have to be 250mm back from the hatch opening. This puts the CG about 2mm ahead of where it was with one.
For this, I think i need to move the mount strap back. But my concern is the batteries are way beyond the plywood tray now, is that secure enough?
all up weight with 2 batteries is 4.96 kg or about 11 lbs
Is that withing this things capability?
2. Glue it down onto the foam floor behind the existing wood floor.
3. Don't worry about installing another strap. Glue down some velcro and the matching velcro to the end of your batteries. The existing strap holds the front of the batteries and the velcro holds the rear of the batteries in place. Don't overdo it with the velcro or it'll be hard to separate the battery from the floor since it's so far back.
I've done this on other planes and it works quite well.
Insofar as flying for a much longer period of time, I feel that the time I get from just one 5000 battery is quite sufficient. This is not really an aerobatic airplane and flying around and around and around in circuits gets pretty boring. In that video, he got the time he got with two batteries by flying around at around 30% throttle. Do you really want to fly like that for that long? I did an experiment with my old Avanti S and one 5000 battery. By floating it around in circuits, I managed to get 10 minutes out of it. By the end of the flight, I was so bored, I wanted to hang myself. I have my timer set for 4 minutes on my AL. If I lugged the AL-37 around at minimal throttle, I bet I could get 7 or 8 minutes out of it but really, falling asleep from shear boredom is not very safe.
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xviper, you make some compelling arguments. I guess i'm thinking more about being easier on the batteries as they can share the load. This may not be as much of an issue as I think though. I'll have to see how things go with one for now anyway as I can't afford another two batteries at this time anyway.
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Originally posted by Scale Freak View Postxviper, you make some compelling arguments. I guess i'm thinking more about being easier on the batteries as they can share the load. This may not be as much of an issue as I think though. I'll have to see how things go with one for now anyway as I can't afford another two batteries at this time anyway.
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Wild Man looking good so far. I assume you had Callie do the graphics for you, no?Hugh "Wildman" Wiedman
Hangar: FL/FW: Mig 29 "Cobra", A-10 Arctic, F18 Canadian & Tiger Meet, F16 Wild Weasel, F4 Phantom & Blue Angel, 1600 Corsair & Spitfire, Olive B-24, Stinger 90, Red Avanti. Extreme Flight-FW-190 Red Tulip, Slick 60, 60" Extra 300 V2, 62" MXS Heavy Metal, MXS Green, & Demonstrator. FMS-1700mm P-51, Red Bull Corsair. E-Flite-70mm twin SU-30, Beast Bi-Plane 60", P2 Bi-Plane, P-51.
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