I just finished my RV14A 1.5 years ago with the Lycoming 390 220hp. Can you talk about the weight of the new DeltaHawk engine firewall forward if you get a chance. Also the cost difference which in my opinion will make or break DeltaHawk for us with low income. Great info on your video. Nice job.
The 167 kts at 14,000', is that indicated or true airspeed? If it's indicated you're truing out at somewhere around 215 kts. Keep in mind flutter speeds are based on true airspeed, not indicated.
That’s okay. They had a habit of never delivering engines. A friend ordered six and paid the deposits. Delivery times slipped totally off the calendar. They never delivered, never returned the deposits. Buyer beware.
Respectfully, this video is about a theoretical engine in a theoretical aircraft. That Delta has a miserable reputation amongst early embracers of the engine is beyond dispute by anyone doing serious research. I sincerely hope they have a viable product that meets the ballyhooed performance specs but more than that, I hope they can actually deliver engines on time and on cost. The latter would be a new experience for them.
Awesome post. For someone looking to get every performance edge attainable, I'd wager the tail dragger configuration would reduce drag more than your fancy cowling. And you'd look way cooler, AND be secretly envied by those who would, but lack the stones. Grass strip? Heck yeah!
It all sounds good . Cannot seem to find price though . Will not save anything if engine is double the price let’s hope not ,perhaps you may know . Thanks for video.
I personally don't know of a true 2 cycle diesel (no valve train) which reduces the moving parts by 40% . Unless you are referring to the apposed piston diesels . They have 15% more moving parts than a conventional 4 stroke diesel. I assume you are referring to the 2 cycle Detroit . These are 2 cycle engines but they have valve trains. They don't have less moving parts than a 4 cycle. To my knowledge this engine is a first.
A Commer was an opposed piston engine not a 2 cycle it had More moving parts than even a 4 cycle these people have designed an engine from the ground up. Respect!
Delta hawk has never lived up to ANYTHING! They have been just months away from releasing this engine for way over 20 years. How many years does it take a professional organization to bring a product to market….. u are kidding yourself.
It all comes down to money. If you have a big engineering team you can do things quickly but you might burn through a $million every couple of months. If you have just 2 or 3 guys it can take a really long time. I would tend to roll my eyes and write them off like so many other dreamers but getting faa cert is really difficult. The motor has to stand up to strict requirements but also the mfg process has to be very well documented and controlled. That is very challenging. If they pulled that off it can’t be ignored.
@@sblack48 I agree with most everything you say but…… I had a friend pay serious money for six engines to do a DoD project that were never delivered and no refund was tendered. When they realized they couldn’t deliver they chose not to do the right thing. Not a good start at all in an industry with a long memory.
I just finished my RV14A 1.5 years ago with the Lycoming 390 220hp. Can you talk about the weight of the new DeltaHawk engine firewall forward if you get a chance. Also the cost difference which in my opinion will make or break DeltaHawk for us with low income. Great info on your video. Nice job.
I want to swap a v4 2 stroke DH in a banshee quad.
The 167 kts at 14,000', is that indicated or true airspeed? If it's indicated you're truing out at somewhere around 215 kts. Keep in mind flutter speeds are based on true airspeed, not indicated.
Exactly what I was thinking. Vne is easy to hit in most RVs at altitude.
I was wondering that too
Deltahawk has been around for two decades. Original price that they took deposits on was $40K.
That’s okay. They had a habit of never delivering engines. A friend ordered six and paid the deposits. Delivery times slipped totally off the calendar. They never delivered, never returned the deposits. Buyer beware.
When are we going to see third party testing of this engine?
Respectfully, this video is about a theoretical engine in a theoretical aircraft. That Delta has a miserable reputation amongst early embracers of the engine is beyond dispute by anyone doing serious research. I sincerely hope they have a viable product that meets the ballyhooed performance specs but more than that, I hope they can actually deliver engines on time and on cost. The latter would be a new experience for them.
The big questions are "How much does it weigh?" and "How much does it cost?".
I hear the fwd weight is almost same as Angle valve 360. Seems like they could have done better on either weight or power with a clean sheet design.
Awesome post.
For someone looking to get every performance edge attainable, I'd wager the tail dragger configuration would reduce drag more than your fancy cowling. And you'd look way cooler, AND be secretly envied by those who would, but lack the stones.
Grass strip? Heck yeah!
It all sounds good . Cannot seem to find price though . Will not save anything if engine is double the price let’s hope not ,perhaps you may know . Thanks for video.
Deltahawk wants $100K for a firewall forward installation.
Firewall forward usually means
Everything so that includes prop so looks like a fantastic price .
@@Susieandchrisdefine 'fantastic' :)
What has been well run about Delta Hawk?
Successful 2stroke diesels have been around since 1940 and with 40 %less parts should be significantly less expensive than a 4 stroke
I personally don't know of a true 2 cycle diesel (no valve train) which reduces the moving parts by 40% . Unless you are referring to the apposed piston diesels . They have 15% more moving parts than a conventional 4 stroke diesel. I assume you are referring to the 2 cycle Detroit . These are 2 cycle engines but they have valve trains. They don't have less moving parts than a 4 cycle. To my knowledge this engine is a first.
@@kevinbrewer9421 Commer TS3 "Knocker" ?
A Commer was an opposed piston engine not a 2 cycle it had More moving parts than even a 4 cycle these people have designed an engine from the ground up. Respect!
Seems like there are a lot of times when your Lyc would actually climb out of your ranch strip faster than the DHK180….
Less fuel burn though and when he gets higher he has the turbo.
Delta hawk has never lived up to ANYTHING! They have been just months away from releasing this engine for way over 20 years. How many years does it take a professional organization to bring a product to market….. u are kidding yourself.
Amen. They promised but never delivered time and again.
It all comes down to money. If you have a big engineering team you can do things quickly but you might burn through a $million every couple of months. If you have just 2 or 3 guys it can take a really long time. I would tend to roll my eyes and write them off like so many other dreamers but getting faa cert is really difficult. The motor has to stand up to strict requirements but also the mfg process has to be very well documented and controlled. That is very challenging. If they pulled that off it can’t be ignored.
@@sblack48 I agree with most everything you say but…… I had a friend pay serious money for six engines to do a DoD project that were never delivered and no refund was tendered. When they realized they couldn’t deliver they chose not to do the right thing. Not a good start at all in an industry with a long memory.
@@stephenwalton9646 no that’s not good
Delta hawk. No thank you.