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Horsepower On The MD520N Notar  
User currently offlineWardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Posted (12 years 3 months 3 weeks 4 days 7 hours ago) and read 1063 times:

I have been investigating the horsepowers of the MD520N Notar helicopter and it said that those Allison 250-C20R engines have a 450 shp and continuous shp of 375. What is the difference between the horsepowers of a Cessna or other prop aircraft compared to the Notar? And what is shaft horsepower compared to just horsepower?



13 replies: All unread, jump to last
 
User currently offlineEssentialPowr From United States of America, joined Sep 2000, 1820 posts, RR: 2
Reply 1, posted (12 years 3 months 3 weeks 3 days 21 hours ago) and read 1032 times:

Horsepower is simply work/time. In metric units,

work = force*distance = Newton Meters (called a Joule)
power = work/time = Joule/sec = Watt.

So, watts and horsepower are Power terms.

Horespower can easily be converted to watts, similar to temperature in F being converted to C.

There is no difference in horsepower whether it's measured at a shaft, pulley, crank, flywheel, or any other mechanical output.

Cheers


User currently offlineWardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Reply 2, posted (12 years 3 months 3 weeks 3 days 12 hours ago) and read 1021 times:

For example: If the MD520N NOTAR helicopter has a shaft hp of 450 and a Cessna 182 has a hp of ( the same) 450 does that mean that they have the same equal power as in cruise and take-off power?

User currently offlineEssentialPowr From United States of America, joined Sep 2000, 1820 posts, RR: 2
Reply 3, posted (12 years 3 months 3 weeks 3 days 11 hours ago) and read 1017 times:

If both powerplants produce 450 hp in the takeoff regime, or cruise regime, per your example, then they are identical.

Obviously, a 182 w/ 450 hp is certainly not typical...





User currently offlineWardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Reply 4, posted (12 years 3 months 3 weeks 3 days 7 hours ago) and read 1014 times:

On this one website about the NOTAR, the engine specs stated that shp was 450. But it also stated that a continuous shp 350 was also applied. What is the difference between the two?

User currently offlineB737-112 From United States of America, joined Nov 1999, 885 posts, RR: 6
Reply 5, posted (12 years 3 months 3 weeks 3 days 6 hours ago) and read 1013 times:

Does FS98 really need the information to be that accurate? Just fly the NOTAR in those damn circles and be happy!  Big thumbs up

User currently offlineFredT From United Kingdom, joined Feb 2002, 2185 posts, RR: 26
Reply 6, posted (12 years 3 months 3 weeks 3 days 3 hours ago) and read 1007 times:

Max continuous horse power is just that - the horsepower the engine can output for an unlimited time withouth taking damage. Maximum horsepower comes with a time limit.

Cheers,
Fred



I thought I was doing good trying to avoid those airport hotels... and look at me now.
User currently offlineWardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Reply 7, posted (12 years 3 months 2 weeks 6 days 20 hours ago) and read 996 times:

Hey B737-112, you dont know anything. OK.

User currently offlineB737-112 From United States of America, joined Nov 1999, 885 posts, RR: 6
Reply 8, posted (12 years 3 months 2 weeks 6 days 18 hours ago) and read 994 times:

Oh but Wardialer, I do. I'm the one that sold you the computer and monitor you are using now and I helped you install FS98 and FSEditor so you can alter the horsepower and all. Then you called me up for information about downloading the NOTAR so you can put it to Flight Sim.

To set the record straight for everybody else my original post was just an inside joke between friends like all friends do but instead he's mad and has not talked to me since I posted that first post. As you guys can tell I was not slamming him at all, it was simply a joke which he didn't understand. Learn to understand humor Wardialer.

User currently offlineWardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Reply 9, posted (12 years 3 months 2 weeks 2 days 10 hours ago) and read 969 times:

B737-112,

Just answer the question. It really shows that your not even into the technical stuff Uh. I'm just educating myself and your not.
 Smile



User currently offlineB737-112 From United States of America, joined Nov 1999, 885 posts, RR: 6
Reply 10, posted (12 years 3 months 2 weeks 2 days 6 hours ago) and read 964 times:

It took you 5 days to come up with a response like that, sure was quick thinking!

Wardialer, why are you so embarrased about playing Flight Sim, there's a whole forum just for you guys. I think it's cool, why take offense to it? I don't see the issue.

User currently offlineWardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Reply 11, posted (12 years 3 months 2 weeks 2 days 6 hours ago) and read 963 times:

B737-112,

I think your in the wrong topic because obviously you can't come up with a good answer. Oh, I know why, because you don't seem interested in one of the worlds greatest choppers ever invented. Trust me, there are other things in a chopper than flying in circles. Did you even know that? HA HA HA


User currently offlineFredT From United Kingdom, joined Feb 2002, 2185 posts, RR: 26
Reply 12, posted (12 years 3 months 2 weeks 2 days 4 hours ago) and read 959 times:

May I suggest that you two take it to email, phone or the street before further embarassing yourselves in public, not to mention clogging up the forum with whatever issues you have with each other?

Cheers,
Fred



I thought I was doing good trying to avoid those airport hotels... and look at me now.
User currently offlineWardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Reply 13, posted (12 years 3 months 2 weeks 1 day 21 hours ago) and read 956 times:

Thank You for your suggestion.

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