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cgaircrft

Member
Joined
Nov 8, 2018
Messages
20
Location
utah
I am 3 years into a 4 passenger amphibious airplane. Around 300 hp from a 13b turbo running around 6000 rpm's with a constant speed propeller speed around 2500 with my 2:40 prsu unit. I have the motor completed and dynoed, Haven't permanently constructed intake and exhaust as need in place to properly accomplish this task. I have been working with a design engineer and are almost to concept. Then comes structural design and actual wind tunel results. Excited to get started on actual construction.
 

noob8844

New Member
Joined
May 18, 2019
Messages
4
Hey yall, I'm currently designing a mid to low wing, wood-fabric ultralight. Goal of this ultralight is to be easily disassemblable (so it can fit in your garage or pickup) and as easy to build as possible. If all goes well, I intend to release plans so anyone that wants to fly, but can't drop five or six figures on an LSA or Cessna, can drop a grand or two at Home Depot and end up with a functional flyer within a few months of on and off wood working. Here's the fuselage and tail skeleton I have so far:Untitled.png
I'd love to hear your opinions on this and my future work's structural stability and manufacturability.
 

Norm Langlois

Well-Known Member
Joined
Dec 13, 2011
Messages
207
Location
Northwood NH USA
I encourage you to weigh up your calculations . A 103 compliant UL is a hard mark to hit.
There are a very few cantilevered wings to fit your goals and they are not wood.
The weight for 103 is just to low for any of us dreamers. The available engine weights are still to high for a 4 stroke 90 lbs or more. That is a big bite out of your weight budget . 2 stroke options are still the best between 60 and 90 . Some better ones out there made for UN maned aircraft ,those are cost prohibitive.
I did it with aluminum and its still not cantilevered.
Good luck to you.
Norm
 

Speedboat100

Well-Known Member
Joined
Nov 8, 2018
Messages
1,062
Location
Europe
I am in the middle of my third wind turbine prototype making...and after that I will make a small aeroplane. I am learning new tricks everyday. Here is the strenghtened wood spar caps....blue is 1400 kg/m3 dense woodcomposite...which makes the wing incredibly stiff. Otherwise if would be like yello...almost. This system spun at over 300 Gs in previous model.
 

Attachments

Charlie Webber

New Member
Joined
Jun 12, 2019
Messages
2
I picked up a mini max project last week. It needs controls ran, fabric covering, and engine. I have a new 277 that I bought from a different guy.
 

Mark Schoening

Well-Known Member
HBA Supporter
Joined
Aug 2, 2012
Messages
117
Location
KRHI
Prepping my shop for the new project: Zenith Cruzer. Going to Mexico in a coupla weeks to pick up the kit. Hope I don't have to stand in line....
Planning to install a lyc 320, (floats a possibility) simple VFR, leaf lookin', going to breakfast, low and slow type of flying. Hope to finish by next summer.
 

cattflight

Well-Known Member
Joined
Dec 31, 2010
Messages
47
Location
Spokane, WA
I'm not nearly as ambitious as most of you. I am building a Glastar from a kit [eek!]. 6 years into it amidst a busy work life and 4 home moves (one from Colorado to the Northwest). But making steady progress on FWF now! Build site link included here. I am in the process of porting all postings over from the now defunct Expercraft website, so there are a bunch of gaps.
 

dickc

Member
Joined
Oct 13, 2019
Messages
13
Well... I can't say I'm a home builder, I spend to much time on others... I've got a J-5, a 108, 2 C150's, a Luscombe, and, and,,, I joined to get parts and projects to other builders, I want to see them fly. I have helped dissipate the collections of outers and got a bunch of parts.

The latest A Cygnet project led me to this forum, I'll post that to the topic area, and watch the classifieds
 

Flitzer

Member
Joined
Jun 12, 2019
Messages
7
IMG_1392.JPG IMG_1393.JPG How about that! My current project is a PV-6 (or a Flitzer-Laird LC-1W) since both share the same airframe at this stage.

The Vale PV-6 Stormcock, a 1930s-type Private Venture 'light fighter', inspired by the Blackburn Lincock, is seen here in Japanese national markings. Two Lincocks each were purchased by Japan and Nationalist China in the '30s. This is a 3-D printed model of the PV-6 in which it is intended to install an 83 hp. direct-drive Verner 5Si radial.

The Stormcock evolved from the Flitzer Meteor and is a much simpler design than would be a scaled Lincock and is structurally very similar to earlier Flitzer types.
 

Ed Koehler

New Member
Joined
Oct 14, 2019
Messages
1
Hey yall, I'm currently designing a mid to low wing, wood-fabric ultralight. Goal of this ultralight is to be easily disassemblable (so it can fit in your garage or pickup) and as easy to build as possible. If all goes well, I intend to release plans so anyone that wants to fly, but can't drop five or six figures on an LSA or Cessna, can drop a grand or two at Home Depot and end up with a functional flyer within a few months of on and off wood working. Here's the fuselage and tail skeleton I have so far:View attachment 85199
I'd love to hear your opinions on this and my future work's structural stability and manufacturability.
I think your goal is unrealistic. There are many homebuilt ultralight kits available and their plans are usually available by themselves. A study of these available and flyable planes will give you a much better perspective on what you would have learn to be able to design a craft strong enough to survive and within the weight limits mandated by the FAA. There are very, very few materials at Home Depot that could be used in an aircraft. The FAA rules and regulations are there to protect you and the people and property you may be able to affect from harm, damage or death. Trying to fool the FAA or cheat their regulations is like lying to your doctor. Personally, I'm glad there are no $1,500 Home Depot planes flying over my house. Your best bet is to join the local EAA chapter where the veteran pilots will steer you in the right direction. Watch for and buy an unfinished kit plane at a bargain price. Complete the aircraft and cherish the project and your time in the air.
 

Theodore959

Member
Joined
Nov 19, 2019
Messages
24
i was building Bowers flybaby, now leaning to less weight. Legal eagle perhaps but need cabin w/heat for winter flying
 

Victor Bravo

Well-Known Member
Joined
Jul 30, 2014
Messages
7,450
Location
KWHP, Los Angeles CA, USA
Putting a Rocky Mountain Wings Ridge Runner 2 back together. Rotax 503 DCDI, probably going to be replaced with the DP-1/ O-100 4 stroke for reliability flying over the city. Aircraft has 21 hours on the Hobbs, but a few years of sitting, being taken apart, and being 80% put back together.
 

Victor Bravo

Well-Known Member
Joined
Jul 30, 2014
Messages
7,450
Location
KWHP, Los Angeles CA, USA
$4495 for one of the first ten kits, plus a set of usable O-200 cylinder assemblies, and a runout O-200 for the rest of the parts not in the kit. Probably higher after that.
 

pictsidhe

Well-Known Member
Joined
Jul 15, 2014
Messages
7,524
Location
North Carolina
Putting a Rocky Mountain Wings Ridge Runner 2 back together. Rotax 503 DCDI, probably going to be replaced with the DP-1/ O-100 4 stroke for reliability flying over the city. Aircraft has 21 hours on the Hobbs, but a few years of sitting, being taken apart, and being 80% put back together.
Jeez, that's a lot of leftover parts!
 
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