SW Warbirds, I don't think that this is the type of paint that can be roughed up with any grade of sandpaper, it is a rubbery film with low adhesion properties. Probably safer to just wipe with alcohol and prime. Do a search and you will find other ways to paint over an already painted EPO model.
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Official Freewing Twin 70mm AL37 Airliner Thread
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Originally posted by Alpha View PostSlowflight Welcome to Hobby Squawk, Slowflight! We designed this bird to be flown on a 6s 5000. As seen in our "Torture Test" video, I often power down to less than half throttle. For endurance flights, which we haven't published yet but I'm sure by now many other pilots can confirm is possible, I set takeoff flaps and cruise at about 25% throttle with level rudder turns to maintain lift, and back off to even less during slow passes for camera, sometimes just above idle. The key with an airliner when its slow is to let it rebuild inertia before turning, and when turning, keeping the wing flat. I avoid cutting all power, because at that point the EDFs behave like huge air brakes.
My point is, stretching the 6s 5000 is entirely possible if you're looking for scale appearance and longer flight times.
If you're asking because you already have 5s 5000 packs, I can tell you, -- *UNOFFICIALLY* -- That we also tested our prototypes and pre-production AL37s on 5s and even 4s. We just changed the battery, but nothing else inside the aircraft. While initial acceleration is unsurprisingly lower on a twin 4s 4000mAh pack and thus requires a longer rollout on harder surfaces, the model does fly just fine once up to speed. It's more of a scale cruiser at that point and won't roll or loop like the stock 6s setup can. On 5s, the AL37 will fly in between the 4s and 6s, with overlapping performance in logical conditions.
I hope this gives you enough information to decide if you want to try flying the AL37 on a non-stock 5s battery setup.
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Originally posted by killickb View PostSW Warbirds, I don't think that this is the type of paint that can be roughed up with any grade of sandpaper, it is a rubbery film with low adhesion properties. Probably safer to just wipe with alcohol and prime. Do a search and you will find other ways to paint over an already painted EPO model.
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Originally posted by Alpha View PostThe key with an airliner when its slow is to let it rebuild inertia before turning, and when turning, keeping the wing flat. I avoid cutting all power, because at that point the EDFs behave like huge air brakes.
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PineCat Welcome home to Hobby Squawk, PineCat! It sounds like you're new to RC aircraft? Do you have any experience with other types of RC? I hope you find Hobby Squawk to be a fun place to share with like-minded people. We're all a bit "plane crazy", in the best way, and happy to help new RC pilots grow. You're right, our AL37 is not an ideal first airplane (or second or third or fourth), but there are many paths to get started in a safe and fun way without breaking the bank.
There's lot of information here on Hobby Squawk to get started, and also on our Knowledge Blog: https://www.motionrc.com/blogs/motion-rc-blog
Live Q&A every Tuesday and Friday at 9pm EST on my Twitch Livestream
Live chat with me and other RC Nuts on my Discord
Camp my Instagram @Alpha.Makes
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Originally posted by Gravythe clown View PostGot my maiden flight. Two issues but other than that it’s awesome.
1st it had to add a metric ton of right Aileron trim. I’m guessing 4-5mm down on the left and up on the right.
something is definitely off.
2nd those wheels got to go. Motion you need to offer upgraded wheels with bearings for purchase. I’m going to see it LT to tomcat wheels can work. Rolling out on takeoff and landings are full of cringe. It’s like thinking of your mom when you start having sexy time with the wife. Total mood killer.
Other than that it was awesome.
gravy
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I bought some different wheels to try out before o put oil on it. I have some of that chain oil as well as sewing machine oil. I just don’t want oil getting on the plane.
flaps are as flush as can be as the elevator were matched. My buddy has an incident tool we are going to check that with. It kind of looks as front of the tip side of the left wing is twisted up, but really hard to tell with my old eyes.
gravy
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Hello AL37 family, just wanted to share some Happy and Sad feelings. Happy that she flies amazing, I have to say a big thank you to my builder and test pilot Caption AL Larson. Sad as I open the box and it was broken and damaged. But after a some A&P help from the Captain Larson, the plane was fixed and in flight.8 Photos
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Originally posted by killickb View PostSW Warbirds, I don't think that this is the type of paint that can be roughed up with any grade of sandpaper, it is a rubbery film with low adhesion properties. Probably safer to just wipe with alcohol and prime. Do a search and you will find other ways to paint over an already painted EPO model.
Don
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