EAA166 from Sun 'n Fun 2024: New Engine Walkaround

Building a Van's or BearHawk? One engine choice might be the DeltaHawk DHK-series turbocharged Jet-A engine. At Sun 'n Fun 2024 in Lakeland, Florida, the company was showing off its latest FAA certified DHK engine, with new announcements for higher HP variants and Van's applications. EAA166 member Larry Anglisano offers an engine walk around report with DeltaHawk's Christopher Ruud from the show.

[@stevenkay2485]

They used to tout , One hp/lb. 20 years later, still in development and specific lb/hp/hr are nothing to write home about. Be very leery of claims from these people. Great idea, poor execution.

[@lawrencecarlson2425]

GA is long overdue for a replacement of the air-cooled pancake engines.

[@dtoften]

Current numbers I hear is $90-100k for the 4 cylinder with $60k+ for experimental. This is engine only cost with FWF being extra. I can't find a TBO or TBR. With diesel weight a high concern and I assume the designers have compromised reusability to save weight, it would more likely a TBR. Also, with litigation costs, will engine be serviced in house with only DeltaHawk mechanics or like Rotax with invite only certified shops? Nonetheless, I don't see this trickling down to Cessna 172 types for quick some time if ever.

[@paulkelly4731]

Don't know if I misheard, but is this a 2 stroke diesel, like the Detroit V53/71/92 series?

[@jamesmorton7881]

Uh, UH, where is the radiator Amigo? ? ❤❤

[@PistonAvatarGuy]

No mention of TBO.

[@manuelpiston]

100k? Yeah no

[@PghGameFix]

I love the engine.... i'm just worried about the belt on the supercharger. Back in the day, I had a supercharger on an old toyota pickup... and it would blow the belt every 5 or 6 thousand miles. Since it was a 4-stroke, it would continue to run. (Poorly) But it got the point where I would put on a new belt every oil change. Since this is a 2-stroke design.... I'm sure it would stop with a thrown belt. I wish they would have used a toothed belt (no slippage) or a more rugged drive solution. Like a gear drive with an oil bath. (the standard to drive aviation accessories)

[@Surestick88]

If the belt goes when it's running the turbo should keep it running if it can push air past the supercharger. That depends, of course, on the overall design i.e. is the supercharger bypassed once the turbo is spooled up. It looks like a positive displacement supercharger which probably wouldn't let air through if it stopped turning and wasn't bypassed.

[@PghGameFix]

@@Surestick88 Sure... but not all of them are turbo.

[@JustinHuff_EOinDixie]

Why does my chainsaw run with no turbo?

[@PghGameFix]

@@JustinHuff_EOinDixie because it's a single cyl, with a reed or rotary valve, and it self pressurizes the case. The multi cyl with a supercharger isn't built that way.

[@jmwintenn]

@@PghGameFix they literally are all supercharged and turbo charged, all 3 power outputs from deltahawk.

[@sylvester2294]

Lubrication?

[@MAGApepe]

now put them in everything :))

[@matthewzuleger4569]

Any body price on these 3 engines, that about the a confige and oil draning into the cylinder and hydroloc on start up?

[@stevenkay2485]

Last I heard $100k

[@robertmurray2954]

Av Web video

[@swiftadventurer]

does the RV14 pkg include a cowl?

[@dustertube]

Forced induction Compound charging . Amazing

[@davidturner6509]

Detroit Diesel of the sky…I dig it.

[@gylanunderhill]

He interest in to know the weight difference between this and one it is meant to replace as well as fuel burn and prices. Looks a good engine design though.

[@jamesmorton7881]

? The kinked hoses between cylinders ?? ❤❤

[@MAGApepe]

orange ,, likely fuel,,, green,, likely coolant

[@BenjiBoo42]

Will the 235hp fit im my cessna 150?

[@BabaDka]

You should out one on each wing..

[@PC-vq5ud]

too heavy

[@The6698Clown]

Cool stuff!