Master Lecture: Aircraft Conceptual Design w/ Conceptual Research Corporation's Dr. Daniel P. Raymer

[@brancwp]

A very standard design cycle we go thru in designing any aircraft. Nice simple concepts. Most people don't realize you tend to use rules of thumb and previous ratios to get your preliminary design pretty mature before doing into the fine detailed calcs.

[@officergregorystevens5765]

Yeah I have no idea being outside the field but a big flight sim enthusiast.. Could you possibly share some of the most important 3D design software you would use when designing an aircraft? I'm looking for trials or just to read about them anyway. Ty

[@dekutree64]

34:40 There's another way to counteract torque, invented by Miroslav Svec for the Scout Paramotor. Basically you put wing-like elements in the airstream from the propeller, angled so their lift vector is in the opposite direction of the propeller's drag torque. Sort of like the coaxial propeller method, but one of them is stationary and much higher pitch. Here's a video about it: kzbin.info/www/bejne/nZeXdJ-aqbmZp6s For the paramotor, the anti-torque blades also double as the supports for the safety cage around the propeller, so the drag penalty is a non-issue since you need a cage regardless. But for a helicopter it might not be worth it. Though it would still make sense to give helicopter tails an airfoil cross section to take advantage of the same effect and reduce the load on the tail rotor. Also could use it for the supports of a ducted fan.

[@officergregorystevens5765]

I really enjoyed this. Just one request: Could you incorporate more acronyms next time? :)

[@HTPJ]

Be off any design?

[@officergregorystevens5765]

Of any design?

[@HTPJ]

Officer Gregory Stevens lol thanks, u joining?

[@officergregorystevens5765]

I subscribed to this channel if that's what you mean, bud.

[@HTPJ]

Officer Gregory Stevens oh I meant the gofly competition.

[@HTPJ]

Can the aircraft have any design?

[@1965wazza]

H.P hp In defence of Dan......some of the questions involved some complex topics that can't be explained "briefly"

[@HTPJ]

who's Dan and who is u?

[@BigDickMark]

@@HTPJ Dan is the guy in the video....did you even watch it?

[@ufoengines]

I think this dude already has the contest sewed up! kzbin.info/www/bejne/i57PqqWEhsitq8U .. ( I wonder what he's going to do with the two million bucks ?

[@StefRush]

This is from the Go Fly prize as there attempt to be helpful. I think if you didn't know anything about aircraft this would be helpful to watch. I think for the audience this was presented to it was not helpful. You can tell this is done by academics so they will drag this out telling you what you need to get the job done never asking what you need to get the job done. They assume the public at large is stupid and needs classes on design, It's clear none of the big boys can come up with a design that works or they would not be asking the public at large. This kind of arrogance is the worst to me when asking for help because you are at a loss for a good idea don't dictate to the people how to come up with the new idea, this will most likely lead to the same place you\they are now.

[@7urbine]

"It's clear none of the big boys can come up with a design that works or they would not be asking the public at large." I disagree. A few bigger companies have already designed some prototypes; Boeing easily could if they wanted to. With how massive Boeing is, I believe the 2 million offered in prizes towards the challenge, is just a way to generate ideas.

[@StefRush]

Really! Nothing new has been thought of sense the 60s. All aircraft you think are new are just reworks of old ideas that were not possible for whatever reason at the time. Give me one example of an aircraft configuration that is new in the past 40 or 60 years. Just before I was born in the early 60s they built full size quadcopters just as an example. Where are those quadcopters... that was not a question... the reason none of these ideas flew but could fly is the same. Only a helicopter or gyrocopter like aircraft that can STVOL or VTOL is able to glide during hover with a total loss of power everything else just falls out of the sky like a rock like V-22 Osprey death trap and all craft like it. Think carefully not including fighter jets and super bleeding edge stuff an aircraft flies not because it has a motor on it but because its shape uses the air to slow and control its fall or glide ratio. Having a motor on it should have nothing to do with its glide ratio. The new paradigm seems to be reliability and backup power systems to get around having to create craft that can glide during and after a hover with complete power loss the way a helicopter can. Think of all the dead Marines that died because of these stupid V-22 Ospreys going down in a hover and I DON'T CARE WHAT REASON THEY GAVE THE WORLD they never should have been built. There is a new never before seen idea out there and I have it. I'm tempted to just give my idea away as I feel guilty every time I hear of another V-22 crash.