DeltaHawk will be the first to admit they’ve been plodding along on the diesel engine certification project like…forever. Actually, it’s been 14 years. But they think they’ll have a production engine available this year. Here’s KITPLANES editor Marc Cook with an update.
I have been hearing the hype about it for years now, but so far Zip, Nada. Its been in ‘Development’ for so damn long, I am beginning to? think the whole thing is a scam.
Either bring it to market or STFU.
opoc? engine how it works. mp4,,,an aircraft version????
The UK Diesel Air 2-stoke opposed piston engine is superior. A nice engine though.
Maybe they should optimize the engine to turn a genny at? a constant speed (simpler) which powers an electric motor which turns a prop.
I’m getting a little concerned, the engine hasn’t been released yet. I’m? wondering if there’s a major flaw that’s cropped up. Not much is being said these days. Constructive conversation is invited.
Tnx.
with this power to weight ratio and size im surprised it doesnt come as an outboard powerhead. . the outboard engine market is huge and with a “non? certified”-lisence buil, per haps even non turbo engine ot should outperform and cost less than the large multicylinder, supercharged outboards available now. . .
im sure both evinrude and mercury could produce all parts in house under lisence
@klesmer
I would take an old toyota hilux or landcruiser; as it so happens the new landcruiser has been ruined by electronics; do u know the UN has something like 6,000 toyota 4×4’s?!!
If touring saudi or somehwere like that I would pick an old ford 7. 3idi? or even a gm 8. 2 diesel, after all diesel costs only 2. 5p a litre!
@tpvalley I agree with most of what you say but for applications in civilized senerio’s common rail is here to stay. Do I morn? for the old school way ? Absolutely. But electronics are getting much,much better, more dependable and durable. That being said, if I were to venture to a third world country, I would take old school mechanical diesel any time. Probably something from Japan or Korea.
@klesmer
common rail and electronics have made diesel? cars faster and more economical, but its also made them less reliable, less suitable for 3rd world countries and so defeating the purpose of the diesel which is reliability, ruggedness and efficiency.
I HATE with a passion any electronics; all forced upon us by bloody politicians that r in the pockets of the manufacturers so that we r forced to buy new technology in the name of GREENness, but its for profit and dependence.
@WickedTRX Absolutely, common rail would lessen the combustion noise and improve fuel ecomnomy as well. I ran this passed Delta Hawk and for now , they want to keep things as simple and electronics free as possible. You? might see common rail in the future. Common rail technology is the best thing that has happend to internal combustion engines, diesel and gasoline.
@klesmer Although I have no idea about aero certification and how fail safe these are considered, automotive common rail technology seems to me a great way to minimise that, some systems do as much as 8 separate injections per cycle, some well before tdc, feeding the combustion progressively for a longer period and minimising that known diesel knock. VW’s? TDI previous injection system with a pump for each injector has a very good redundancy.
@WickedTRX You are preaching to the choir kiddo, I’ve been driving diesels since 1982. I didn’t? give these folks much notice a few years ago but I had a lengthy conversation with them last week at Sun ‘Fun and I feel they have a winner, with a bunch of solid orders to fill. Their next hurdle is to get into production. My only concern is they are noisy- loud combustion noise. They said they are working on it. I wish them luck.
@klesmer Intake and exhaust ports, Blower to scavange spent gases, it makes for a really compact engine. no cam shaft, no rods. . . one of the things I like most about simple diesels is that all is controlled by the injection pump, no need for throttle bodies, spark plugs and ignition? systems, more fuel more torque, more rpm more advance, but all done by fuel.
@WickedTRX You are thinking of the old Detroit diesels. This one works on the same? idea but does use ports instead of exhaust valves. They both need a supergharger to run, unlike a normal 2 stroke that uses crankcase pressure to charge the cylinders. Some Detroit’s would run sans blower but just barely.
so this is a 2-stroke diesel, but contrary? to the vast majority of 2-stroke diesels, it doesn’t have exhaust valves, it has exhaust ports on the liners as a gas 2-stroke, please correct me, or confirm.
@idontcare80 Well in relation to non existent? avgas it is better
@idontcare80 Troll. ?
It’s just a pity that they missed their target price by over 100% – from around $30k to about $62k. Insane price , OK engine. ?
@starcatcher7777 u need pre heated veg oil before you can use it, remember that it can support the use of road diesel fuel as well but I don’t recommend the use of bunker fuel which is similar fuel? that use on a ship
Diesel blows. I’m amazed? that these guys are still trying.
Diversity leading to volume is what? the aviation world needs desperately to keep the damned costs down. Look at the Rotax 912 and Lycoming strictly the aviation market thus reflected in the huge costs for these powerplants.
SPY? SAPPING MY SENTRY?
Oh my – Oh my. I have a 400 horse power 400 cubic inch gasoline chevy small block in my 81 Camaro right no, and? this is making me forget about that ! I would like to see some engine dyno test pull results on the prospective 8 cylinder. This is thrilling me almost as much as the COATES DRUM VALVE cylinder heads !
This is a 2 stroke port piston turbo diesel – RIGHT ? I am VERY VERY impressed. Put it all together with roller bearings in the bottom end for better RPM’s and gain 20% more power.
you have my? attention
Drill? baby Drill!!
@starcatcher7777 where to have a $100 burger? . . . lunch at wherever there’s? stale oil. LOL