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  1. O

    S-21 Firewall forward: Aeromomentum or Viking

    Seriously, Mark? The airboat videos are exactly the ones I brought up earlier: These engines have obviously not much in common with the engines that you are now selling for aircraft. Dragonfly has also been defunct for a few years and nobody in the airboat community seems to know your engines...
  2. O

    S-21 Firewall forward: Aeromomentum or Viking

    Hi Keith, Yes, I spoke with him a few times. I didn't like him, I didn't (and still don't) like how he presented himself in the Zenith forum but I was still about to place an order for his Viking 130. That's when I learned about AeroMomentum and then changed course and ordered an AM15 + Zenith...
  3. O

    S-21 Firewall forward: Aeromomentum or Viking

    I'm sure he will respond, as smooth as ever. I know of only three people who somewhat publicly shared their built with an AeroMomentum engine and who actually flew their aircraft. Andy Steward from Australia. Failed alternator and cooling problems. Engine failure. Kevin Perreau from New...
  4. O

    S-21 Firewall forward: Aeromomentum or Viking

    Are you aware that AeroMomentum engines are assembled from a combination of no-name Chinese aftermarket parts (I was not able to find one single 'Suzuki' marking anywhere on our engine), as well as a number of custom components? How is this any better than Viking's engines that are used but have...
  5. O

    Non- Biased Engine Reviews -Aeromomentum

    [...] I think you are underestimating Mark and his 'hey I am an not a sales guy but an engineer' sales strategy. I would say that he is doing just fine, considering how many people think that he is making engines (assembled primarily from no-name aftermarket components) that are somehow...
  6. O

    BMW motorcycle engine for a plane?

    When we lived in Germany, my wife and I earned our weightshift LSA licenses (called Ultralight over there) on a TakeOff powered trike. We really liked it and also met the owner of the this company several times. Very nice guy, his engines also were (possibly still are) a relatively popular...
  7. O

    10/23 Raptor Video

    I don't know how he funded his operation but it's not with the deposits. AFAIK the deposits are all in escrows, inaccessible for him.
  8. O

    Non- Biased Engine Reviews -Aeromomentum

    Mark and I spoke today for 1.5 hours, it seems like things have improved for the better. Here is the update, from great to not so great. @aeromomentum please correct me if I got anything wrong. Mark wants to make sure that the buyer of our engine is happy with it. He therefore offered to swap...
  9. O

    Non- Biased Engine Reviews -Aeromomentum

    Believe it or not, I am the same and feel somewhat bad sharing my rather negative experiences. Then again, I also feel bad that I know of several others who (at least partially) went with Aeromomentum because I kept all of my negative impressions for years to myself, as I wanted to protect Mark...
  10. O

    Non- Biased Engine Reviews -Aeromomentum

    Oh, don't worry, you are an outstanding sales man! People (including myself) are buying your engines and believe what you are telling them, even though you have very little to show. So, overall your response to my very specific questions is still the same as what I (and others) heard over the...
  11. O

    Non- Biased Engine Reviews -Aeromomentum

    Well, I have to admit that these were exactly the two reasons why I was first close to ordering a Viking and then, just before pulling the trigger, switched over to an Aeromomentum, not realizing what I would get myself into. I went down this road because Mark asked what data Rotax is posting...
  12. O

    Non- Biased Engine Reviews -Aeromomentum

    Hi Mark, I'm not sure that this is the kind of public debate you want, but this is of course up to you. I also have to correct myself, it was the AM10 I had in mind, when I said that you launched it only two or three years ago. As the AM20T, your website shows it sitting on some kind of mount...
  13. O

    10/23 Raptor Video

    He probably still has his airpark home there, which he was trying to sell a few years ago: I guess that he will probably stay there for at least a few days. So, who knows what will be next!?
  14. O

    10/23 Raptor Video

    Yes, but who knows what deal he had with the FAA? Maybe they agreed to change his geographical limitations, once he has accumulated 40 hrs?!?
  15. O

    Non- Biased Engine Reviews -Aeromomentum

    Hello Mark, You keep stressing how you are using airboats as a test bed. Hundreds of them, for thousands of hours! I was never able to independently verify this for the AM15, which I had bought from you, even though I spent a considerable amount of time trying to find manufacturers or owners of...
  16. O

    Non- Biased Engine Reviews -Aeromomentum

    Ampseal connectors are used by Caterpillar and John Deere. Their engines oftentimes operate in extremely harsh conditions.
  17. O

    Non- Biased Engine Reviews -Aeromomentum

    I'm in Novi, Michigan, USA. This was the spec sheet for the listing I posted in February. I sold everything in the meantime to a fellow builder from Canada. As the border is currently closed, it is still sitting in our hangar, in case you want to check it out (I guess you won't if 'nz' stands...
  18. O

    Non- Biased Engine Reviews -Aeromomentum

    I also wanted to make it clear that I still think that Mark is a nice guy and that the engine itself is probably fine. My frustration was primarily caused by the massive delays we experienced, AeroMomentum's inability to get their vendors, e. g. for the cowling or the engine mount sorted out...
  19. O

    Non- Biased Engine Reviews -Aeromomentum

    I'm somewhat hesitant to respond to your post, since I joined the forum just recently and don't want to come across as somebody who joined only to trash talk AeroMomentum. We ordered an AM15 with the Zenith FWF package in 2017, just before AirVenture, paid for everything in full and finally...
  20. O

    Zenith Ch750 CruZer builder from Novi, Michigan here!

    I see you're in AK - that's actually where we want to go and the trip for which we would want to carry additional fuel. ;) This is the only thread I found regarding external tanks: Fuel tank plumbing | HomeBuiltAirplanes.com I don't necessarily need to have access to the fuel in flight but...
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