Iranian drone engine

Designers would not want a drone making visible smoke though as that makes it easier to see and shoot down.

Generally if it has a propeller it's a drone vs a cruise missile having a jet engine. Drones that intentionally crash into the target like a missile instead of being reusable are "one way" drones.
 
The Wankel drone and unmanned aerial vehicle (UAV) engines haven't gone away. A British company still produces them as offshoots of the old Norton rotary motorcycle engine:

UAV Engines Ltd

Several drones around the world have used variants of these engines.

Several other companies are producing Wankel engines for these applications:

UAV rotary engines

The Indian government has produced its own rotary engine for its drones as well.
 
I was curious about the engine used in Iranian drones. They are a reverse engineered copy of a German made four cylinder air cooled two cycle aircraft engine making 50 hp.

Mods, I have included a page from Wikipedia to show what this engine looks like in its German configuration.

View attachment 326881
Yeah, a number of cars can travel faster - but they are cheap enough to “swarm” and only one or two might make it.
They also suck up allot of expensive resources to kill them.
Have not heard if the manufacturing plant has been hit?
 
Very TRUE. I knew quite a few guys who ended up torched by their beloved Mazda engines that suddenly failed them (too expensive to repair) in the late 70s/80s. My brother one of them. He absolutely loved his RX7.
What is mind blowing to me is I found out near a million of them were produced and sold. Only to end up another in the dust bin of automobile history. Why? I have no idea what went wrong. Possibly vastly misunderstood or non accepted new technology?

Maybe a tad similar to G.M. Corp 1950s era fuel injection engines that were ahead of their time and worked great. Drag racers loved them. Joel Rosen of the world famous Motion Chevrolets was an early owner of a fuel injected corvette (his personal work ride) and a master mechanic at keeping them running who too eventually gave up on them. The long story on the Chevy FIEs was that the mechanics hated working on them and there were not enough sold to make it feasible to invest more into the training, maintenance , diagnostic tools and machines at dealers etc..... They just would not sell well at that time. Just like Chevy, Mazda seemed to have their hands on some good technology they let slip by for some reasons...? It is interesting to note that no other major manufactures have tried since. Little surprised Toyota did not jump into some of the technology learned from Mazda... Toyota seems to be one of the main automakers on the planet willing to take on and try to perfect all sorts of new technology for years.
Wankel engines burn a lot of oil by design which prevented them from becoming emissions compliant.
 
I’m trying too imagine the manufacturing and assembly process to determine the odds that these things can keep getting turned out. We’ve all seen videos of craftsmen making stuff in India and Pakistan but not sure about Iran.

I heard that the drones can be assembled in a shop the size of North American garage. I would assume that those aluminum cylinder assembles are cast at a foundry ( big heat signature) and shops would be dedicated to making crankshafts, a foundry to cast the cranks then, lots of truck deliveries to get the castings into the the shop. The navigation electronics I heard could be smuggled in through Iraq and Pakistan. These shops could be located across the country, Any other perspectives on this?
 
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From photos, the drones are loaded into covered trucks at a 45 degree angle, then taken to launch sites. Most have rocket assist for taking off and can be launched from trucks from special racks.
 
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