danny_galaga

The ultimate 'getthereitis' 😟

I wanna rob a bank with you. Since you thinks it's the same, I'll take 80% and you can have 20% 😀 😇

Most cars are doing what, 110kmh if travelling long distances. You would agree that's their constant load? That's maybe 20% power. Big difference to an aircrafts constant load. I had a girlfriend who used to commute between kunnanarra and Darwin. She was nuts. She drove her Hyundai excel at 160-170 all that distance. Now that load has got be be closer to an aircrafts constant load. When she'd get home, you could smell the hot oil and the engine block paint burning. I'm extremely confident she would have blown it up after not too many more trips but she ended up hitting a cow. How she survived that I don't know.

I will relieve you of the os40 for the right price 😊

I have a soft spot for OS ☺️ Funny thing with this club model is that the idea is everyone has a radial mounted 049 kicking around. Except me! I ended up buying a new one from Cox in Canada. I believe they are essentially building new ones from unused parts. Once that runs out it'll definitely be over.

It's not really an old chestnut if it's true though, is it? I used to think car engines should be a great alternative. Even when I learnt to fly and learnt about the basic differences between the two types I didn't latch on to the engineering side of things. It's only once I started building my own plane and seeing if there were other options out there did I learn more, quite a bit from this very forum. Quite a bit from facthunter, but also others In my mind the big hurdle that will never be hurdled is the fact a car engine is designed to run at relatively low power settings most of the time, with fairly short bursts at high power. An aircraft engine is more like 70-80% most of the time, and small aircraft 100% on climb. You could be climbing for five minutes. That's the equivalent of a car going onto an impossibly long salt flat and just flooring it and driving at its top speed for five minutes. There's a reason top fuel dragsters are rebuilt after every run. That reason alone makes the car engine stand on the back foot from the get go. No manufacturer is going to spend the money engineering their car engines to suit those scenarios 'just in case'. But there are other reasons too. I think the only thing that might be comparable that could be converted might be marine engines. But they're not exactly cheap, and lets face it, the big appeal of car engines is price. Having said all that, I would love to build a Pietenpol Air Camper. I would use a Datsun 120Y engine 😊

As promised, the beginner class 1/2a combat model made from core flute. The only part that is glued is the lead out guide. Engine mount is 3D printed and attached with three screws. I couldn't easily find a glow clip to suit Cox. On Lucky Lil 7 I just used alligator clips because that version is beam mounted so was easy to just clip onto an engine mount bolt. So I decided to channel the olden days and made one from a clothes peg 😊. Didn't have any handy sized wire kicking around so will finish it off during the week.

This is actually the last model I built, about three years ago. I didn't go hard core with proper FAI rubber, just the rubber in the kit so it didn't fly far or long. Just as well, I was just using a football field. I would have lost it 😄 I have much better photos somewhere, but here's a screenshot shot from FB 🙂

049 is the classic beginners engine. But for all the reasons you imagine, they really aren't great for beginners. The reason they were so popular is price. Personally, I think a .10 is a useful minimum size for CL. My first CL model as a kid was a .15. which I still have. You aren't wrong though, since this plane (which I built over 20 years ago) isn't aerobatic it's not exactly exciting 😄. I didn't even have any other propellers to tune it. I have some now. If you think this plane is simple, wait until you see my current project 😄 We are doing a club 1/2a combat class. Made from one 3d printed mount, that I've reverse engineered (ie, stole the design) and one piece of core flute with a 3mm carbon fibre rod inserted. Took me about 1 hour to draw up and cut out 😀. Again 049. I believe the design isn't particularly aerobatic, but I've identified a few things I can improve. It has to be really simple, to get hands on handles. I just have to adjust the mount now because I didn't allow for shrinkage. Probably go about 2% larger. I'll post a pic when it's all done 🙂

Yes, you've enjoyed telling me that a couple of times now. It's a 1/2a speed model. 049. KISS baby, KISS.

Australia Day model fly in. Just so happens my pit crew, Peter was the chef mechanic that did the inspection of my Bushcat 🙂

Previous engine failure (Subaru) https://aviation-safety.net/wikibase/78548

https://aviation-safety.net/wikibase/565911?fbclid=Iwb21leAPmT05jbGNrA-ZPRWV4dG4DYWVtAjExAHNydGMGYXBwX2lkDDM1MDY4NTUzMTcyOAABHrl1gvXl7mn_MZ9drx3ERglaLgVwft-g4EzIrAHepOiMJGWGJIDqdewcIIbP_aem_fZMM45xwsr1dk40bM1JSXw

Finally put one in the plane. Little jobs 🙂

So anyway, I was out driving my Lamborghini Miura the other day...

Many, including me, use this design, from K & n https://www.knfilters.com/re-5287-universal-rubber-filter

Mine have a similar heater. A bit more hose, but I've decided it's worth it. I like that it virtually imparts no heat to the inlet air, it just keeps the surfaces warmer, which is where the ice sticks after all 😇

Again, we need the 😲 reaction on this forum. Damn, I know there could be a multitude of factors in play, but it really seems like he doesn't know to keep airspeed up, in this case by lowering the nose. Of course there could be reasonable explanations, like partial power failure, and there's not much time for the WTF effect to have passed.

Many of us are out of that category unfortunately.

Link?

I've said it before, and I'll say it again, we need a 😲 reaction

Much more sensible cloth hinges used during the repairs 🙂

Well, it turns out that making the hinge from tissue wasn't such a good idea 😄 I can't even remember why I did it that way. Quick to do I guess. Will add cloth hinges when repaired