Hi, completely new to this, and must say its a mass of information, a really helpful & useful community here.
Plus exactly what we realise we were looking for now we found it.
Actually don't want a show on wingtip extensions, least not yet.
Its a research essay my son has done for qualification as part of his college applications and wanted for him to be able to model the effects to add to the book study. RTF looks inflexible & out of budget so the rapid prototype build that foamboard offers is really promising, & the low cost will help with the expected flight failures too!
Had a search on here and there didn't seem much directly though suggestions that experimenting is doable at scale.
We had been thinking we might need monster size to get noticeable differences but would be really pleased if someone can suggest a starting size at which adding wingtips might give us something measurable. Really hoping 3' wing will be enough. Also weren't sure what kind of speeds we might need, be great if we can get away with using the nearby steep hills and save trashing electronics or nitros during the anticipated crashes too.
As for the measuring, - had been thinking of fixing trailing threads on the wings and see how much they tangled as a measure of vortex, & maybe average distance as a measure of flight efficiency, but likely there is a smarter way someone can suggest. Not looking for him to do a nailed down scientific chart just demonstrating noticeable changes.
Was thinking of doing a really basic build, like a triangle section stick like fuselage with stubby fixed wings hoping to max the vortex, have some goes using the information on here about basic build techniques, CG and such then report back once we had something worth discussing.
Of course someone might well have been here, done that and be able to post all the details - in which case please just point us the best path as the experimenting and documenting is the whole point for him.
Foamboard, knife and glue gun, poised and ready.
Plus exactly what we realise we were looking for now we found it.
Actually don't want a show on wingtip extensions, least not yet.
Its a research essay my son has done for qualification as part of his college applications and wanted for him to be able to model the effects to add to the book study. RTF looks inflexible & out of budget so the rapid prototype build that foamboard offers is really promising, & the low cost will help with the expected flight failures too!
Had a search on here and there didn't seem much directly though suggestions that experimenting is doable at scale.
We had been thinking we might need monster size to get noticeable differences but would be really pleased if someone can suggest a starting size at which adding wingtips might give us something measurable. Really hoping 3' wing will be enough. Also weren't sure what kind of speeds we might need, be great if we can get away with using the nearby steep hills and save trashing electronics or nitros during the anticipated crashes too.
As for the measuring, - had been thinking of fixing trailing threads on the wings and see how much they tangled as a measure of vortex, & maybe average distance as a measure of flight efficiency, but likely there is a smarter way someone can suggest. Not looking for him to do a nailed down scientific chart just demonstrating noticeable changes.
Was thinking of doing a really basic build, like a triangle section stick like fuselage with stubby fixed wings hoping to max the vortex, have some goes using the information on here about basic build techniques, CG and such then report back once we had something worth discussing.
Of course someone might well have been here, done that and be able to post all the details - in which case please just point us the best path as the experimenting and documenting is the whole point for him.
Foamboard, knife and glue gun, poised and ready.
