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Old Oct 07, 2014, 06:21 AM
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Thanks for that info. I guess the easiest way to say it is that the VTOL Trainer is more appealing to me for subjective reasons.
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Old Oct 07, 2014, 10:49 AM
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Originally Posted by Derek_S View Post
Thanks for that info. I guess the easiest way to say it is that the VTOL Trainer is more appealing to me for subjective reasons.
By all means, do what you like and have fun.

Be advised, fixed pitch tilt rotors are an inherent compromise between the low prop pitch that is needed to hover, and the higher prop pitch that would be best for forward flight. As a result, they tend to spin fast and require a higher throttle setting in forward flight. The resulting loss of efficiency limits flight times. SLT types don't have this limitation because they use separate props for lift and forward flight. One way or another, everything is a compromize though.
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Old Oct 08, 2014, 10:15 AM
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Interesting. I am not active in this VTOL portion of the forum, but I will assume some are looking at tackling this issue with variable pitch props. But for me, maybe another future project...

Thanks for the info. The local 3d print was cost prohibitive. At shapeways you can get the 4 motor mount systems for under $100 based on my mockup.. Not bad, if your time and access to tools prohibit making aluminum mounts. Of course someone would have to go through some revisions I'm sure to get them just right.
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Old Feb 03, 2015, 02:57 PM
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Any idea if the vtol trainer could carry 1lb of camera equipment if the right motors were used?
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Old Feb 03, 2015, 03:14 PM
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Any idea if the vtol trainer could carry 1lb of camera equipment if the right motors were used?
The short answer is Yes, it could. If I remember correctly it weighs about 3 pounds and the motors generate 5 lb of thrust at full throttle so it has enough thrust margin (barely).

When people ask this sort of question I always question the mission. The VTOL trainer was designed primarily to be a fun to fly sport model and a good entry point onto the world of VTOL aircraft. It might perform your mission, depending on what it is, but there might be better ways to do it. If you weigh it down with a pound of anything it might not be a fun to fly sport model anymore and it might not do what you need it to do either. Just because it can hover with that much weight doesn't mean that it will fly as far, as fast, or as long as you would like.
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Old Feb 03, 2015, 03:26 PM
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The short answer is Yes, it could. If I remember correctly it weighs about 3 pounds and the motors generate 5 lb of thrust at full throttle so it has enough thrust margin (barely).

When people ask this sort of question I always question the mission. The VTOL trainer was designed primarily to be a fun to fly sport model and a good entry point onto the world of VTOL aircraft. It might perform your mission, depending on what it is, but there might be better ways to do it. If you weigh it down with a pound of anything it might not be a fun to fly sport model anymore and it might not do what you need it to do either. Just because it can hover with that much weight doesn't mean that it will fly as far, as fast, or as long as you would like.
Thanks for the input, I just posted my own thread with some of the criteria of what I'd like. Hopefully I can get some input to help find something to best fit my requirements.
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