Has anyone done a HL-10 Lifting body?
- Thread starter DarkHelmet
- Start date
AndyKunz
New Member
You're probably not directing that to me, but my HL-10 build thread shows intermediate steps. HL-10 One-Off Proto Build - RC Groups
Hope that helps some.
Andy
Hope that helps some.
Andy
JCalhoun
Well-Known Member
Thanks, Andy. I saw yours. It looks like you went with balsa sheeting (sheathing?).
I'm curious about this technique because you have a lot more leeway to sand/shape.
AndyKunz
New Member
AndyKunz
New Member
It flies!
Got 10 "flights" in this afternoon!!! My early "falling with style" comment was definitely true.
After the release, the HL-10 would roll several times and quickly assume a nose-down attitude, gaining speed. You can see this tumble in one of the photos.
If you held a good bit of up elevator, it would suddenly pop out of the dive into horizontal flight, and from there you could fly it down as long as you kept the airspeed up. If you stalled it, it would roll.
It took the first 5 flights by David to get the balance and travel sorted out. I flew it 3 times, and Ian flew it once.
These were 5 second flights from about 300', and the first 150' was burned getting airspeed. It was definitely fun, but it'll be a while before I try stuffing an Estes engine in the back!
It's always a blast to fly a new design, but when it's a radical departure from the norm it's way more fun. I encourage you guys to try something really different.
Andy
Got 10 "flights" in this afternoon!!! My early "falling with style" comment was definitely true.
After the release, the HL-10 would roll several times and quickly assume a nose-down attitude, gaining speed. You can see this tumble in one of the photos.
If you held a good bit of up elevator, it would suddenly pop out of the dive into horizontal flight, and from there you could fly it down as long as you kept the airspeed up. If you stalled it, it would roll.
It took the first 5 flights by David to get the balance and travel sorted out. I flew it 3 times, and Ian flew it once.
These were 5 second flights from about 300', and the first 150' was burned getting airspeed. It was definitely fun, but it'll be a while before I try stuffing an Estes engine in the back!
It's always a blast to fly a new design, but when it's a radical departure from the norm it's way more fun. I encourage you guys to try something really different.
Andy
AndyKunz
New Member
I did a build thread on RCGroups for mine. It flew well, but those are fast trips from 400' to ground!
http://www.rcgroups.com/forums/showthread.php?t=2024529
Eventually I lost it to the corn. Watch for while plastic chips in your corn flakes
I will build another someday, but right now I'm busy on some other projects.
I like what you did there, John. Is that from your own plans?
Andy
http://www.rcgroups.com/forums/showthread.php?t=2024529
Eventually I lost it to the corn. Watch for while plastic chips in your corn flakes
I will build another someday, but right now I'm busy on some other projects.I like what you did there, John. Is that from your own plans?
Andy
jtmiles
New Member
Andy,
Yes, I lofted the three view. Unfortunately when I assembled it on my my jig I let the nose fall without realizing it causing my nose to round. It is sort of a HL10 - M2F3 cross because of that error.
I guess really for me it was a proof of concept: the concept being can I loft and build something from a three view drawing.
I have started reading through your RC thread. Very interesting and some very familiar.
I had an opportunity to talk briefly with Dale Reed and later Albion Bowers later when I tried again to contact Mr. Reed.
Mr. Bowers sent me some drawings I hadn't seen anywhere else showing the variable center of gravity for powered vs unpowered flight.
Thank you for your response and positive comment.
John
Yes, I lofted the three view. Unfortunately when I assembled it on my my jig I let the nose fall without realizing it causing my nose to round. It is sort of a HL10 - M2F3 cross because of that error.
I guess really for me it was a proof of concept: the concept being can I loft and build something from a three view drawing.
I have started reading through your RC thread. Very interesting and some very familiar.
I had an opportunity to talk briefly with Dale Reed and later Albion Bowers later when I tried again to contact Mr. Reed.
Mr. Bowers sent me some drawings I hadn't seen anywhere else showing the variable center of gravity for powered vs unpowered flight.
Thank you for your response and positive comment.
John
My legacy to the RPF. An 8 year old thread that's still fairly active.
jockdeboer
Well-Known Member
Blappy is going an hl-10
I'm still in search of a nice size model for my project.
Still love this thread.
Still love this thread.
charlie98210
Active Member
Yes, I have.
Just in case anyone is interested:
fantastic-plastic.com
Northrop HL-10 1:48 Resin Model Kit by Fantastic Plastic
A 1:48 resin model kit of the Northrop HL-10 experimental lifting body by Fantastic Plastic Models
fantastic-plastic.com
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