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by Patrick Yepes
January 7th, 2017, 10:40 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 121460

Re: Hovercraft B/C

I did an estimate by scaling down larger hovercraft propellers and found that you'll need about 50 CFM to go full speed with a 2kg craft. Does this sound reasonable? Very reasonable, but keep in mind our hovercrafts will not be very comparable and youll likely need much more CFM. There is a fan on ...
by Patrick Yepes
October 23rd, 2016, 3:02 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 121460

Re: Hovercraft B/C

You can buy adapters to attach propellers to the motor shaft.
by Patrick Yepes
October 22nd, 2016, 5:51 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 121460

Re: Hovercraft B/C

do you think 6th - 8th graders have the ability to design and program (much less run a CNC machine tool) a propeller? I would say absolutely yes. You would be very surprised at what they'll be able to do if you show them how the basics work. Remember, the whole point of SO is for the students to le...
by Patrick Yepes
October 21st, 2016, 10:08 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 121460

Re: Hovercraft B/C

Most likely this depends on the actual safety hazard involved. Some people say "if it's not illegal for minors, students should do it," while others might say the opposite. Regardless, the students should probably be designing the propeller. I appreciate the timely response but do you think 6th - 8...
by Patrick Yepes
October 21st, 2016, 8:11 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 121460

Re: Hovercraft B/C

Quick question... Coaches are not allowed to help build the hovercrafts for the students. That said, can the coaches machine special propellers out of plastic that the students then have to bend to the desired angle? I ask because I'm not liking the selection of propellers off the shelf. I don't se...
by Patrick Yepes
October 21st, 2016, 6:49 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 121460

Re: Hovercraft B/C

Quick question... Coaches are not allowed to help build the hovercrafts for the students. That said, can the coaches machine special propellers out of plastic that the students then have to bend to the desired angle? I ask because I'm not liking the selection of propellers off the shelf. I don't see...

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