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Wood or metal studs for the track?
Posted: November 17th, 2017, 6:12 pm
by DrDaveV
The rules state "standard 2x4 framing studs recommended." I see a lot of metal studs in pictures from other competitions.
Which is most common at competitions, metal or wood?
What are most people using in practice?
Question about volts, amps, charge
Posted: November 18th, 2017, 9:12 am
by geniusjohn5
I'm not familiar at all with the concept of volts, amps, charge, etc. Can anyone explain these concepts and how they apply to hovercraft? Also, what type of battery should I use, and how many volts, amps, etc. should I use?
What type of fans should I use for lift and thrust?
Posted: November 18th, 2017, 12:36 pm
by geniusjohn5
What type of fans should I use for each lift and thrust? If possible, can anyone provide examples of those certain fans(like pictures, websties, etc.)?
Re: What type of fans should I use for lift and thrust?
Posted: November 18th, 2017, 4:26 pm
by Birdmusic
geniusjohn5 wrote:What type of fans should I use for each lift and thrust? If possible, can anyone provide examples of those certain fans(like pictures, websties, etc.)?
We're using drone fans for both lift and thrust, works pretty well, but i recommend you experiment.
https://i.pinimg.com/originals/84/16/74 ... 57d509.jpg
Re: Question about volts, amps, charge
Posted: November 18th, 2017, 4:29 pm
by Birdmusic
geniusjohn5 wrote:I'm not familiar at all with the concept of volts, amps, charge, etc. Can anyone explain these concepts and how they apply to hovercraft? Also, what type of battery should I use, and how many volts, amps, etc. should I use?
For battery, I definitely recommend anything but alkaline. I used that last year and it ran out of energy in 5 runs. Since Lithium isn't allowed, NiMH is a good bet, since it has a consistent energy discharge and is rechargeable.
Re: What type of fans should I use for lift and thrust?
Posted: November 20th, 2017, 5:01 pm
by geniusjohn5
Birdmusic wrote:geniusjohn5 wrote:What type of fans should I use for each lift and thrust? If possible, can anyone provide examples of those certain fans(like pictures, websties, etc.)?
We're using drone fans for both lift and thrust, works pretty well, but i recommend you experiment.
https://i.pinimg.com/originals/84/16/74 ... 57d509.jpg
Do you have a website link for those drone fans, in regards to where to buy them?
Are these types of fans ok? If they are, are they effective?
Posted: November 20th, 2017, 5:09 pm
by geniusjohn5
Are these types of fans ok? If they are, are they effective?
https://www.amazon.com/ANVISION-Bearing ... +motor+fan
Re: Are these types of fans ok? If they are, are they effective?
Posted: November 20th, 2017, 5:35 pm
by Adi1008
I think the static pressure for the fan you linked is about 3.19 mmH2O, which is about 31 Pascals. If you're looking for a fan that can lift the hovercraft, these'll be too weak (pressure-wise)
Re: Wood or metal studs for the track?
Posted: November 22nd, 2017, 3:10 pm
by sciduck
DrDaveV wrote:The rules state "standard 2x4 framing studs recommended." I see a lot of metal studs in pictures from other competitions.
Which is most common at competitions, metal or wood?
What are most people using in practice?
At every competition I went to last year, the same metal studs were used. We ended up buying the same ones for practice.
You should ask people on your team who competed last year. I doubt proctors would change the boundaries if they already had materials from last year.
Re: Hovercraft B/C
Posted: November 25th, 2017, 6:29 am
by geniusjohn5
Which batteries are better to use? Double AA or 9v?
