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andrew(at)nzactive.com
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 Posted: Tue May 25, 2010 2:06 pm Post subject: Rocket - your TAS and stall speeds? Not book figures, I me |
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Thx Jim. I've experimented w different rpms, and slower rpms seem to yield slower airspeeds. Will experiment more. I do have a Hartzell. And will ask Tom.
Any more takers? I'd appreciate it. Feel free to contract offlist.
Andrew
From: owner-rocket-list-server(at)matronics.com [mailto:owner-rocket-list-server(at)matronics.com] On Behalf Of Daniel Weseman
Sent: Wednesday, May 26, 2010 8:25 AM
To: rocket-list(at)matronics.com
Subject: Re: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
192 KTS true dosnt seem to bad to me? Thats 222 mph , at 15 gph that is 14.8 MPG Sound great to me..... What is typical GPH at 200 mph ?
Dan Weseman
danweseman(at)yahoo.com
www.flycleanex.com
www.fly5thbearing.com
From: "lessdragprod(at)aol.com" <lessdragprod(at)aol.com>
To: rocket-list(at)matronics.com
Sent: Tue, May 25, 2010 10:02:39 AM
Subject: Re: Rocket-List: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
Hi Andrew,
You need to ask this directly of Tom Gummo. Tom loves his HR2. But his claim is that he has the "world's slowest" Rocket.
I thought I found one slower than his, but it wasn't slow enough. 192 knots at 8,000' DENSITY ALTITUDE, full throttle and best RPM.
BTW, 2500 RPM may not provide the fastest speed.
A RV-10 with the IO-540 engine and a 3 blade MT propeller was 1 knot faster at 2300 RPM (15 gph) than at 2500 RPM (20 gph).
The Hartzell "D" blade propeller will probably have peak airspeed RPM, and I have seen this RPM decrease with increased altitude.
(Perhaps this is too much information?)
Regards,
Jim Ayers
-----Original Message-----
From: ACTIVE NZ - Andrew <andrew(at)nzactive.com>
To: rocket-list(at)matronics.com <rocket-list(at)matronics.com>
Sent: Mon, May 24, 2010 11:40 pm
Subject: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
Guys, a quick question? I know the official answers are on FAQs all over the place, but would like no-BS from the horse's (pilot's) mouth answers. My HRII seems to give me about 198 knots TRUE airspeed, at, say 6000 feet, WOT, 2500 rpm. I would be interested to know in your figures - TRUE airspeed (at) power settings, sea level and at altitude, plus whether you're flying an HRII, an F1 (Hershey Bar) or F1/Evo/tapered wing. Also, what airspeed does your aircraft stall at?
'Ppreciate it. I'm toying with upgrading, although my trusty steed has given me 700 happy and troublefree hours, and I wouldn't switch her out lightly....
Andrew
New Zealand
[/b] [quote][b]
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smokyray(at)rocketmail.co
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| Posted: Tue May 25, 2010 7:51 pm Post subject: Rocket - your TAS and stall speeds? Not book figures, I me |
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Hi Andy,
My HR2 is an oldie but a a goodie, 15 years old this year, 5th one to fly. LyCon C4B5 approximately 285 ponies, electronic ignition on one side, GAMI injectors, D Hartzell, big tires and pants. I max out at 210 Knots indicated at SL and 2700/28" 204 GS.
My favorite sweet spot though is 21/2300 below 5,000 feet just slightly LOP at 10 GPH 30 degrees advance truing at 180 knots all day long. That's better efficiency than my 160HP RV4! She stalls at 58 knots indicated with flaps full.
The best part is coming over the mailboxes at my 500 meter strip at 65 indicated! What a machine, fair dinkum eh?
Smokey
HR2
--- On Tue, 5/25/10, ACTIVE NZ - Andrew <andrew(at)nzactive.com> wrote:
| Quote: |
From: ACTIVE NZ - Andrew <andrew(at)nzactive.com>
Subject: RE: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
To: "rocket-list(at)matronics.com" <rocket-list(at)matronics.com>
Date: Tuesday, May 25, 2010, 3:03 PM
#yiv1982414788 DIV { MARGIN:0px;} Thx Jim. I've experimented w different rpms, and slower rpms seem to yield slower airspeeds. Will experiment more. I do have a Hartzell. And will ask Tom.
Any more takers? I'd appreciate it. Feel free to contract offlist.
Andrew
From: owner-rocket-list-server(at)matronics.com [mailto:owner-rocket-list-server(at)matronics.com] On Behalf Of Daniel Weseman
Sent: Wednesday, May 26, 2010 8:25 AM
To: rocket-list(at)matronics.com
Subject: Re: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
192 KTS true dosnt seem to bad to me? Thats 222 mph , at 15 gph that is 14.8 MPG Sound great to me..... What is typical GPH at 200 mph ?
Dan Weseman
danweseman(at)yahoo.com
www.flycleanex.com
www.fly5thbearing.com
From: "lessdragprod(at)aol.com" <lessdragprod(at)aol.com>
To: rocket-list(at)matronics.com
Sent: Tue, May 25, 2010 10:02:39 AM
Subject: Re: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
Hi Andrew,
You need to ask this directly of Tom Gummo. Tom loves his HR2. But his claim is that he has the "world's slowest" Rocket.
I thought I found one slower than his, but it wasn't slow enough. 192 knots at 8,000' DENSITY ALTITUDE, full throttle and best RPM.
BTW, 2500 RPM may not provide the fastest speed.
A RV-10 with the IO-540 engine and a 3 blade MT propeller was 1 knot faster at 2300 RPM (15 gph) than at 2500 RPM (20 gph).
The Hartzell "D" blade propeller will probably have peak airspeed RPM, and I have seen this RPM decrease with increased altitude.
(Perhaps this is too much information?)
Regards,
Jim Ayers
-----Original Message-----
From: ACTIVE NZ - Andrew <andrew(at)nzactive.com>
To: rocket-list(at)matronics.com <rocket-list(at)matronics.com>
Sent: Mon, May 24, 2010 11:40 pm
Subject: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
Guys, a quick question? I know the official answers are on FAQs all over the place, but would like no-BS from the horse's (pilot's) mouth answers. My HRII seems to give me about 198 knots TRUE airspeed, at, say 6000 feet, WOT, 2500 rpm. I would be interested to know in your figures - TRUE airspeed (at) power settings, sea level and at altitude, plus whether you're flying an HRII, an F1 (Hershey Bar) or F1/Evo/tapered wing. Also, what airspeed does your aircraft stall at?
'Ppreciate it. I'm toying with upgrading, although my trusty steed has given me 700 happy and troublefree hours, and I wouldn't switch her out lightly....
Andrew
New Zealand
[/b] | Quote: | http:/rel="nofollow" target="_blank" href="http://forums.matronics.com">htt========================
://www.matronics.com/contribution">http://www.matronics.com/contribution |
|
[quote][b]
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andrew(at)nzactive.com
Guest
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| Posted: Wed May 26, 2010 2:43 am Post subject: Rocket - your TAS and stall speeds? Not book figures, I me |
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Thanks Smokey. Yeah, she's a great machine all right. Interesting you get that SL speed at 2700/28". I don't normally run such a high power/rpm setting - I'll give it a whirl tomorrow though. We have the same engine, with about the same power. (Mine C4B5, 280 hp)
And, yep, as I think you know I use my Rocket for a lot of short strip stuff too. Surprisingly effective short strip machine.
Andrew
PS Would welcome any more data from Rocket drivers, whether HR, F1 or whatever
From: owner-rocket-list-server(at)matronics.com [mailto:owner-rocket-list-server(at)matronics.com] On Behalf Of Rob Ray
Sent: Wednesday, May 26, 2010 3:51 PM
To: rocket-list(at)matronics.com
Subject: RE: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
Hi Andy,
My HR2 is an oldie but a a goodie, 15 years old this year, 5th one to fly. LyCon C4B5 approximately 285 ponies, electronic ignition on one side, GAMI injectors, D Hartzell, big tires and pants. I max out at 210 Knots indicated at SL and 2700/28" 204 GS.
My favorite sweet spot though is 21/2300 below 5,000 feet just slightly LOP at 10 GPH 30 degrees advance truing at 180 knots all day long. That's better efficiency than my 160HP RV4! She stalls at 58 knots indicated with flaps full.
The best part is coming over the mailboxes at my 500 meter strip at 65 indicated! What a machine, fair dinkum eh?
Smokey
HR2
--- On Tue, 5/25/10, ACTIVE NZ - Andrew <andrew(at)nzactive.com> wrote:
| Quote: |
From: ACTIVE NZ - Andrew <andrew(at)nzactive.com>
Subject: RE: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
To: "rocket-list(at)matronics.com" <rocket-list(at)matronics.com>
Date: Tuesday, May 25, 2010, 3:03 PM
#yiv1982414788 DIV { MARGIN: 0px } Thx Jim. I've experimented w different rpms, and slower rpms seem to yield slower airspeeds. Will experiment more. I do have a Hartzell. And will ask Tom.
Any more takers? I'd appreciate it. Feel free to contract offlist.
Andrew
From: owner-rocket-list-server(at)matronics.com [mailto:owner-rocket-list-server(at)matronics.com] On Behalf Of Daniel Weseman
Sent: Wednesday, May 26, 2010 8:25 AM
To: rocket-list(at)matronics.com
Subject: Re: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
192 KTS true dosnt seem to bad to me? Thats 222 mph , at 15 gph that is 14.8 MPG Sound great to me..... What is typical GPH at 200 mph ?
Dan Weseman
danweseman(at)yahoo.com
www.flycleanex.com
www.fly5thbearing.com
From: "lessdragprod(at)aol.com" <lessdragprod(at)aol.com>
To: rocket-list(at)matronics.com
Sent: Tue, May 25, 2010 10:02:39 AM
Subject: Re: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
Hi Andrew,
You need to ask this directly of Tom Gummo. Tom loves his HR2. But his claim is that he has the "world's slowest" Rocket.
I thought I found one slower than his, but it wasn't slow enough. 192 knots at 8,000' DENSITY ALTITUDE, full throttle and best RPM.
BTW, 2500 RPM may not provide the fastest speed.
A RV-10 with the IO-540 engine and a 3 blade MT propeller was 1 knot faster at 2300 RPM (15 gph) than at 2500 RPM (20 gph).
The Hartzell "D" blade propeller will probably have peak airspeed RPM, and I have seen this RPM decrease with increased altitude.
(Perhaps this is too much information?)
Regards,
Jim Ayers
-----Original Message-----
From: ACTIVE NZ - Andrew <andrew(at)nzactive.com>
To: rocket-list(at)matronics.com <rocket-list(at)matronics.com>
Sent: Mon, May 24, 2010 11:40 pm
Subject: Rocket - your TAS and stall speeds? Not book figures, I mean - yours
Guys, a quick question? I know the official answers are on FAQs all over the place, but would like no-BS from the horse's (pilot's) mouth answers. My HRII seems to give me about 198 knots TRUE airspeed, at, say 6000 feet, WOT, 2500 rpm. I would be interested to know in your figures - TRUE airspeed (at) power settings, sea level and at altitude, plus whether you're flying an HRII, an F1 (Hershey Bar) or F1/Evo/tapered wing. Also, what airspeed does your aircraft stall at?
'Ppreciate it. I'm toying with upgrading, although my trusty steed has given me 700 happy and troublefree hours, and I wouldn't switch her out lightly....
Andrew
New Zealand
[/b] | Quote: | http:/rel="nofollow" target="_blank" href="http://forums.matronics.com">htt========================
://www.matronics.com/contribution">http://www.matronics.com/contribution |
|
[quote]
ttp://www.matronics.com/Navigator?Rocket-List
ics.com
.matronics.com/contribution
[b]
| | - The Matronics Rocket-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Rocket-List |
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