meglin
-
Posts
79 -
Joined
-
Last visited
-
Days Won
3
Content Type
Profiles
Forums
Gallery
Downloads
Blogs
Events
Store
Aircraft
Resources
Tutorials
Articles
Classifieds
Movies
Books
Community Map
Quizzes
Videos Directory
Everything posted by meglin
-
E-Props ...who has first hand experience with these
meglin replied to eightyknots's topic in Engines and Props
I hope it's not just for looks. 642 euros for a classic 3-blade propeller. -
E-Props ...who has first hand experience with these
meglin replied to eightyknots's topic in Engines and Props
Of course, the 3-blade propeller is 1700 mm (67") in diameter. It can be saber blades (quieter) or classic blades (cheaper). If clearance allows, you can also go with 2 blades of 68,9". There can be saber, classic and ellipse-shaped blades. There is no point in talking about price - it is always lower than quality.
-
E-Props ...who has first hand experience with these
meglin replied to eightyknots's topic in Engines and Props
We supply a 2-blade propeller with a diameter of 2 m (78.7") on this airplane and motor. With more powerful motors, 3 and 4 blade versions of the same diameter. Would be curious to compare :). -
That's probably the way it's going to be. It is true that the standard of living of the population is very low. And our city is 35 kilometers from the border. My nephew from Moscow just flew to Sydney with his wife. He is a doctor of science, speaking at a conference. It's forbidden to leave our country, so we're cooking in our own juice.
-
Absolutely. But Australia has the most important thing - its own market. That's important. We had our own market too. But now we don't.
-
Yeah, that makes a big difference. And yet, it's significantly more expensive than my perceptions. So it seems to me that the performance must be incredible.
-
Do you mean Kyivprop? Kiev firm Kievprop. But there are many manufacturers there. Unfortunately, they do not make wooden propellers there.
-
I don't know. Maybe it's gold plated on the inside? Or has incredible performance? The price is more in line with a variable pitch propeller. We have our own prices. We've worked very hard on the Jabiru engine. Unfortunately, despite careful maintenance, none of the engines have lasted as long as they should. This may have changed now. We have tried a lot of different propellers on it. We found a suitable carbon propeller. We found the best wooden propellers for our flight speeds.
-
What fabulous features should a propeller have for that kind of money?
-
So there is a benefit after all. The fairings also protect the airplane structure from rocks and dirt flying off the wheels. And appearance, of course.
-
Thank you all for the opinions expressed.
-
We were already such a power. We made space rockets, tanks, aircraft carriers, nuclear turbines, aircraft and rocket engines, giant airplanes. Now we just want to survive.
-
Unfortunately, the production of boats is partially damaged, the production of wind turbines is destroyed due to the temporary occupation.
-
I sincerely thank all my colleagues for their concern. We continue to work and try to stay afloat in the following areas: 1) production of composite propellers, 2) production of wooden propellers, 3) production of agricultural equipment for aircraft and helicopters, 4) production of agricultural equipment for drones, 5) production of plastic parts and glazing for various aircraft, 6) production of spare parts for X-32 and X-34 aircraft (unit production of said aircraft is also maintained).
-
Moreover, our specialists have repeatedly traveled to them. A site visit and delivery of spare parts is quite possible. As for the up-to-date operational documentation, it comes with the aircraft. If it is missing, there are two ways to go about it: 1. There are old documents on the Russian-language Internet. 2. Modern current books with all the changes made are supplied and kept up to date by special contract.
-
The subject of the Bekas airplane is hardly relevant to the topic of propeller diameter selection. We will solve this problem.
-
Yes, very useful. And we came to the conclusion that 1.7 m diameter is best for 3-bladed Rotax-912-80 propellers in practice a long time ago, more than 20 years ago. But I did not see in your reasoning a positive effect of the sweep of the blade ends, as well as the wing sweep. It pushes back the wave crisis and the occurrence of compaction surges. It was the sweep that made it possible to use a 2 m diameter 2-bladed propeller on the Rotax-912/914 and to provide the Savage aircraft with maximum performance in all flight modes. It is the sweep that allows the Jabiru engine to have a 1.62 m diameter propeller and provide a significant increase in performance in most flight modes.
-
E-Props ...who has first hand experience with these
meglin replied to eightyknots's topic in Engines and Props
How many hours does the oldest propeller have today? -
E-Props ...who has first hand experience with these
meglin replied to eightyknots's topic in Engines and Props
What is the maximum performance achieved in operation? -
We don’t like carbon fibre because it produces sharp cutting edges when it breaks down. So we never make carbon seats.
-
As a manufacturer of airplanes in the past, I responsibly declare that the mass of empty - this is the first indicator that must be checked in the aircraft form when it is accepted.
-
Which wheel pants are preferable - fiberglass or carbon? We believe that epoxy fiberglass obtained by vacuum molding with heating is the optimal solution. Such fiberglass is durable, light, resistant to ultraviolet and moisture, cheap, has a large life. However, now at the peak of popularity are products of carbon. Indeed, its unit strength is higher, the stiffness is also higher. As for the price, we have to offer carbon products 1.5 times more expensive when it is primed externally. When using decorative carbon with transparent coating, the price increases 2-2.5 times. We think it is too expensive. But fashion dictates its rules, wishing a lot. Maybe we are wrong and do not know something?
-
How good this work can be objectively judged only after: 1) comparing the weight, 2) comparing the condition after five years of operation in harsh ultraviolet conditions. Heated fiberglass epoxy provides significant advantages on both counts.
-
Dear colleagues, can you tell me how much are the wheel pants for the RV in demand? Which material is preferable - fiberglass, carbon fiber?
-
Once in a previous life, we in Kharkiv (Ukraine) designed and produced our ultralights, our triples, our wings. Tested, offered to the market. These are KHAZ-37, X-30, X-32, X-34 aircraft. These are trikes X-37, X-35. Now the company is no longer there. What's left? It remains the production of individual parts for trikes and ultralights. These are: 1) composite propellers 2) wooden propellers, 3) wheel fairings for wheels of different sizes, with and without a keel, 4) fiberglass seats, 5) plastic springs of the main chassis, 6) atomizers and pumps for spraying chemical solutions, 7) equipment for spraying biological plant protection products, 😎 plastic cabin fairings, 9) floats. Perhaps builders and owners of ultralights may be interested in this? I will be happy to answer all your questions.
-
- 1
-
.jpg.dcd5d21730f9ceae4d32f4b3ba6545c2.jpg)
