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Everything posted by HJpro7
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Designing electric powered sailplane
HJpro7 replied to HJpro7's topic in Aircraft Building and Design Discussion
If anyone has any other design ideas please send them my way. I also need help with powerplant choice and propeller. The current theory is to work with ElectraFlyer's kits, ElectraFlyer.com - Price List. -
I'm planning to build an electric powered sailplane - Microlift glider (Microlift glider - Wikipedia) over a period of 7 years with a budget of approximately 10,000AUD. Design Criteria : low cost folding/dismantlable wings narrow fuselage an electric motor powerplant simple construction steel fuselage with fabric covering a possible empty weight of sub-100kg and 200kg MTOW etc.. Design idea: I really like how compact this design is, but I want to know if there are any drawbacks with such a design. I prefer this low mounted boom fuselage rather than a high mounted one as its significantly easier to transport.
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After more researching, I leaning over towards wood aircraft since there are usually cheaper and easier to work with. the Kr-2 below. PS. I have worked with wood for the past 3-4 years at school.
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I'm building a tricyle version because its easier to take-off and land, plus I don't need any special training. Is a starter, alternator and battery the only parts required to get a electric startup system. Not intending to build anything else electrical. Also what do you mean by
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Okay I've been doing extensive research on the Hummel Bird. I have divided most of the costs into different batches so I don't end up spending $17,000+. Please review the spreadsheet below. Hummel Bird Also I wanted to ask if hand-propping an engine is safe or not. And if not how would I go about installing an electric starter. Thanks,
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Has anyone built the Hummel Bird, I'm interested in neccessary instruments used for Day VFR
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So I should get my license before starting to build, because I was thinking otherwise. I was planning to start construction on the plane, so buy plans, tools (dont need big power tools since I got school equipment) and material since its cheaper to start (to my knowledge). Then when I'm done on the plane I can start on my license, which means 6 months of training alongside Uni or work. Then trasition training if required. Anyway thats how I think I might pan things out as.
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Also a cool little plane I forgot to mention was the BK-1 tricycle.
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Just been doing some research on the HummelBird because you can build it for around 10k USD, but I started getting worried when I saw all the accidents that have happened. I wanna be sure what I'm building is safe so can you give me some insight?
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Yeah, I've been doing extensive research for the past 2-3 weeks, but it seems as I'm not getting anywhere! I was initially looking at an RV-4 kit but now I'm looking at scratch building a Hummel aircraft (HummelBird or Ultracruiser) Thanks for resources btw!
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I guess so, but I'm pretty sure were gonna be travelling then as well
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Dang it, school finishes on the 22nd and we leave for a 2-week vacation in the US a day after :(
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Mum says no, but my dad is coming in October and he might be more optimistic about it :) Will keep you updated. PS I live significantly closer to Jandakot (only a 30min) compared to Mandurah (about 1h and a half).
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What about the construction of the specific parts ie.
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I'd love to, need to discuss with parents though. Whats the aircraft?
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Okay been thinking about scratch-building, so I'm interested in knowing if you've personally done it and what challenges did you face on construction of parts, etc.
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Thanks so much, and I'll try to document my progress as much as possible.
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Cheers for the support, it's unfortunate since not many people think it's possible especially my mum.
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Fair point, but as an aspiring engineer I want to start conceptualizing and building aircraft as soon as possible. Side note: is it possible to learn in our own aircraft if it is a 2 place.
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Oh sorry I misunderstood, I do indeed like the idea, in fact, I might even design something like this myself in the near future. And I did watch the video but the audio quality was pretty bad so I muted it lol.
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Looks pretty sweet! But I'm looking for a 2 place so I can share the experience with friends and family.
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What do you mean?
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I guess so, thanks for the insight
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Pretty smart idea actually, might do that but I'm unsure of all the nitty gritty details such as wiring. Could be achievable after building my first aircraft though :)
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Thanks for the information, would you say it could've have been a lot cheaper if you didn't go with the numerous upgrades such as the better upholstery and V6 engine.