Discussion in 'Hangar Flying' started by Pietenpolflyer, Jan 23, 2004.
Hey that's me! lol
Seriously? The guy at the end of the video?
Yeah....love my job. I've been following your Cassutt build on FB, looking great!
I started building model aircraft in 1948 and RC in 1958. Never dreamed at that time I could get paid for it. Rats.
Finished a day of greenhouse building with a slow flight in the Kadet Sr. The lift on this thing is amazing. Whole flight was at a fast idle.
My first flight in season 2018:
Anybody use hoop pine? I'm pretty sure that is what Home Depot clear pine is. I ripped some into 1/4x 1/4 and 1/2x1/4 to play with.
Let us know how it works out, lately I've been thinking of doing the same thing. I have this nagging idea to build a gigantic RC version of some classic old timer, like a Powerhouse or a Trenton Terror by at about double size.
Heresy I know... wrong material but...
But the slowly as found on rcg is begging for a scale up and fits the bill it's my kids favorite for terrorizing the animals in the yard.
There's also a big version of the old fogey.
Just finished this one up for work and had a test hop last week. Fun! 60% scale Super Cub, 21' wing span, 230 lbs gross. Powered by a JetCat SPT-15 21 H.P. turbo prop.
My SSSC ( Single Seat Super Cub) has 28' wing span. It's not much bigger. Powered by a 1835 cc, 60 hp, VW engine, hauls my 236 lbs. I really like your 60% Super Cub.
What ? You get to build airplanes for a living?
WOW, that looks nice. More info on the engine please.
That's really neat! Would be fun to hop around the patch.
Yeah, I run the Subscale Flight Research Lab at NASA Armstrong at Edwards AFB.
The engine is a single stage centrifugal flow model turbine engine. It is turned around with the exhaust facing forward turning a gearbox. It spins a 39" prop at about 5K. Its an off the shelf unit.
http://www.wrenpowersystems.com/helitp.html Wren makes some nice small turboprops. 7.5hp is what they quote.
Amazing job Red! I am sure you enjoy flying it very much!
Wren is awesome quality. This is what we're using: http://www.jetcat.de/downloads/spt5englisch230206.pdf We also have a smaller KingTech unit, but it isn't currently installed in anything.
Been building, designing, and flying RC models since 1958, didn't know I could get paid for it. I want back pay
So, if you don't mind me asking, what is the purpose of this aircraft?
One thing to note is that this isn't just an R/C model it's really a UAS. It is equipped with a highly accurate autopilot system that uses differential GPS for enhanced navigational precision, ADS-b in/out, pitot/static system among other payloads. It also has the ability to generate all of its own electrical power (alternator), making it a fuel and go aircraft even charging its own internal back up batteries in flight. It carries enough fuel for 3+ hour missions and can operate 50+ miles from the ground station. With most of our aircraft we manually take off and land (R/C style) but the up and away flight is usually all on autopilot. One exception to that is the glider program linked below. While the tow plane can circle up to altitude on auto, the glider must be manually flown to station keep behind the tow plane. We do operate a few R/C only models, but by in large they all have some sort of autopilot on board.
This particular aircraft has two jobs. One is to be a tow plane for our air launch to orbit concept. https://www.nasa.gov/centers/armstrong/Features/TGALS_first_flight.html The glider has suffered from requirements creep taking the gross weight to 200 lbs. Our previous 170cc tow aircraft just wasn't cutting it anymore, we needed this for some more grunt. What better airplane to conduct tow operations with than a Super Cub right?
Its other job is to act as as "intruder" aircraft in manned vs. unmanned encounters. We are studying ways to integrate UAS into the national airspace safely. It will carry a miniature Ku band radar that will allow the UAS to "see and avoid" the manned aircraft.
I don't want to hog this thread too much, but if you have any other questions I'm happy to share. I'm very lucky to be able to make a nice living doing this. The reality though is it's about 10% R/C models and 90% other stuff that wouldn't be that familiar to the average modeler.
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