Aero engines vs Auto engines

[red750]

This is a continuation of the discussion started in the topic Light aircraft crash at Heck Field 27/01/26

[red750]

Turboplanner posted:

 

  6 hours ago, skippydiesel said:

Speculation: There are not many engines designed specifically for generators/bore pumps. Most will be the same engine used in a range of commercial applications eg truck, dozer, tractors, marine, etc

 

I just gave you an example of an engine in continuous power demand.

Briggs and Stratton manufacture 10 million stationary engines per year.

 

You wrote a story based on the words. The design of the two types of engines are based on the Industry Constant Power Demand/Intermittent Power demand terms.

[Reynard]

German B&F aircraft produced their FK9 with a 3 cylinder engine adapted from a Mercedes Smartcar.   I think there is one of these aircraft in WA somewhere.

 

As far as I know, they are now powered exclusively by Rotax.

[skippydiesel]

6 minutes ago, red750 said:

Turboplanner posted:

 

  6 hours ago, skippydiesel said:

Speculation: There are not many engines designed specifically for generators/bore pumps. Most will be the same engine used in a range of commercial applications eg truck, dozer, tractors, marine, etc

 

I just gave you an example of an engine in continuous power demand.

Briggs and Stratton manufacture 10 million stationary engines per year.

 

You wrote a story based on the words. The design of the two types of engines are based on the Industry Constant Power Demand/Intermittent Power demand terms.

My apologies, if I stepped on the misuse of words, by industry. Not an uncommon situaton, often created by the marketing department.

 

I don't recall you mentioning B&S  - a much respected builder of small air cooled engines - sometimes used in very light aircraft.

 

I do not actually see the relevance of your comment, to what you have just writen or to the general thrust of my comments, ground based engines V aircraft engines.

 

Still, I would like someone to either factually agree/disagree, in part or whole,  with my observations😈

[T510]

  2 hours ago, facthunter said:

 I personally think the chev Alloy V8 is a reasonable Motor  for Aircraft, and said so BEFORE it was used in glider towing. It's NOT their High Performance engine though. It's a 2 valve Pushrod Motor. The Mercury V8 Motor is a very specialised Product. The Chev. alloy Block wouldn't like sea water. Even Cast iron doesn't. Nev

 

A lot of marine motors are now using heat exchangers, they run closed loop coolant for the engine with a heat exchanger drawing cold water from the sea/lake/river so there is no salt/dirty water going through the motor.

 

Don't discount the LS series alloy Chev's, even though it is a 2 valve pushrod motor it was used in performance models like the Corvette and Camaro. The commercial versions used a cast iron block with either cast iron or alloy heads and the same internals as the alloy block motors.

 

Mercruiser used Chev V8's from the 60s till 2020, basically truck motors with a different cam and heads

Edited 19 hours ago by T510

[facthunter]

NEVER again Skip. Nev

[skippydiesel]

1 hour ago, T510 said:

  2 hours ago, facthunter said:

 I personally think the chev Alloy V8 is a reasonable Motor  for Aircraft, and said so BEFORE it was used in glider towing. It's NOT their High Performance engine though. It's a 2 valve Pushrod Motor. The Mercury V8 Motor is a very specialised Product. The Chev. alloy Block wouldn't like sea water. Even Cast iron doesn't. Nev

 

Is the Chevy V8 the same/liniage as the V8 used in Rover cars of the past?😈

 

[turboplanner]

3 minutes ago, skippydiesel said:

 

No, and the "Chevy V8: includes both small block and big block. The Chevy used to power several aircraft is the Chev 350, a small block 350 cubic inch engine.

[T510]

I have seen big block (typically an aftermarket alloy block) and small block Chev's in planes as well as the LS series (Gen III or Gen IV) which was the new small block released in 1997. Probably best known in Australia for the 5.7L all alloy V8 fitted to late model Commodores.

 

The Rover V8 was based on the Buick 215ci which was built in 1961-1963. Rover bought the design and tooling in 1965. It's power output is hampered by small ports but it is known for converting fuel and air into a wonderful exhaust note with a small amount of hp and torque as a by product

[Arron25]

3 hours ago, skippydiesel said:

 

Accidently posted and could work out how to delete the whole post..

I initially thought the motor was Oldsmobile... but that was the Commodore V6😵‍💫

Edited 14 hours ago by Arron25

[BrendAn]

35 minutes ago, Arron25 said:

Accidently posted and could work out how to delete the whole post..

I initially thought the motor was Oldsmobile... but that was the Commodore V6😵‍💫

commodore v6 was buick. 

[turboplanner]

8 hours ago, Arron25 said:

Accidently posted and could work out how to delete the whole post..

I initially thought the motor was Oldsmobile... but that was the Commodore V6😵‍💫

The first, VN Commodore was released with an engine that Buick didn't want any more, so the tooling was available cheap. GM Melbourne engineers spun the engine in reverse to the Buick, and got reliability and 125 kW. The later Holden Alloytec (ecotec) V6 was a joint design by GM Australia and US, for the Australian and Canadian markets at 152 kW. The Isuzu Jackaroo sold by Holden had a V6 at 171 kW.   

[Thruster88]

13 hours ago, T510 said:

I have seen big block (typically an aftermarket alloy block) and small block Chev's in planes as well as the LS series (Gen III or Gen IV) which was the new small block released in 1997. Probably best known in Australia for the 5.7L all alloy V8 fitted to late model Commodores.

 

The Rover V8 was based on the Buick 215ci which was built in 1961-1963. Rover bought the design and tooling in 1965. It's power output is hampered by small ports but it is known for converting fuel and air into a wonderful exhaust note with a small amount of hp and torque as a by product

The Buick/Oldsmobile 215 alloy v8 was used and modified with OHC heads by Jack Brabham and Repco to win the 1966 F1 world championship. Another car engine, the BMW M10 4 cylinder was used with a giant turbo to win the 1983 F1 championship. Car engines can sustain high output with the correct parts. There is the autobahn, sustained high speed running.

 

The problem with car engines in aircraft is usually not the core engine, it is all the other stuff, reduction drive compatibility with propeller and crankshaft etc.