H-9 73inch cap 232 engine choice
#1
Junior Member
Thread Starter
My Feedback: (4)
Join Date: Feb 2002
Location: farmington ,
NM
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
H-9 73inch cap 232 engine choice
I have been thinking about trying a gas engine in this plane, and was wondering if the new G-26 would be enough motor. I'am not into 3D performance yet. Thanks for any info Steve
#2
Senior Member
My Feedback: (3)
H-9 73inch cap 232 engine choice
No!!!
Too much weight with no guts. For a 1/4-scale Cap this airplane is heavy to start with. The Zenoah G-26 weighs in at 53 ozs according to Horizon. That would result in the Cap coming in at about 15lbs.
Also according to Horizon this engine will spin up an APC 16x8 prop to 8900rpm -- that should be respectable enough to fly this bird but not with 3D authority.
Too much weight with no guts. For a 1/4-scale Cap this airplane is heavy to start with. The Zenoah G-26 weighs in at 53 ozs according to Horizon. That would result in the Cap coming in at about 15lbs.
Also according to Horizon this engine will spin up an APC 16x8 prop to 8900rpm -- that should be respectable enough to fly this bird but not with 3D authority.
#3
Senior Member
My Feedback: (8)
Join Date: Apr 2002
Location: Silverdale,
WA
Posts: 1,398
Likes: 0
Received 0 Likes
on
0 Posts
H-9 73inch cap 232 engine choice
I just retired my 73" Cap 232. Mine had a ZDZ 40 in it. The 40 weighs three ounces LESS than the Zenoah G-26, with nearly twice the displacement. It swings a 20x10 at over 7000 rpm at 4500 ft altitude. It has plenty of power for the plane. High speed performance is breathtaking, and it hovers at 1/3 throttle.
That said, the plane flew like a pig at slower speeds. It was always dropping a wing if the throttle setting was too low. It required great attention on landing because it would just stop flying and either drop the wing or just fall vertically. The landing gear is not up to the task either, and it bent on all but the smoothest of landings. I would recommend making a replacement gear from 7075 Aluminum, or buying an aftermarket set. The 2025 they used is great for manufacturing, but very bad for landing gear!
My Wild Hare Giles lands like a trainer and exhibits none of the nasty sudden-snap traits that my Cap had. It absolutely floats at low speed, and is completely stable. It also does much better snaps-on-a-line than the Cap did.
If I built the plane again I would use an OS (or other) 1.6 2-stroke, and extend the mount far enough to balance the airplane without weight addition. The cowl would look a little strange and the plane would appear to have a longer-than-scale nose, but it would fly much better.
The real problem with the H9 kit was, it needed at least another 200 in^2 of wing area for the mass. The newer H9 kits are lighter, relatively. They are still learning and improving!
If you can keep this plane down to 12# or less, you will love it. Mine was 13.5# and the extra weight just ruined the slow-flight characteristics.
My $0.02
Brett
That said, the plane flew like a pig at slower speeds. It was always dropping a wing if the throttle setting was too low. It required great attention on landing because it would just stop flying and either drop the wing or just fall vertically. The landing gear is not up to the task either, and it bent on all but the smoothest of landings. I would recommend making a replacement gear from 7075 Aluminum, or buying an aftermarket set. The 2025 they used is great for manufacturing, but very bad for landing gear!
My Wild Hare Giles lands like a trainer and exhibits none of the nasty sudden-snap traits that my Cap had. It absolutely floats at low speed, and is completely stable. It also does much better snaps-on-a-line than the Cap did.
If I built the plane again I would use an OS (or other) 1.6 2-stroke, and extend the mount far enough to balance the airplane without weight addition. The cowl would look a little strange and the plane would appear to have a longer-than-scale nose, but it would fly much better.
The real problem with the H9 kit was, it needed at least another 200 in^2 of wing area for the mass. The newer H9 kits are lighter, relatively. They are still learning and improving!
If you can keep this plane down to 12# or less, you will love it. Mine was 13.5# and the extra weight just ruined the slow-flight characteristics.
My $0.02
Brett
#7
Senior Member
My Feedback: (20)
Join Date: Dec 2001
Location: Clayton,
NC
Posts: 2,249
Likes: 0
Received 0 Likes
on
0 Posts
H-9 73inch cap 232 engine choice
I have two of these planes set up. One with a MVVS 150 glow at 12 1/2 pounds and one set up with a Taurus 2.6 gas at 14 1/2 pounds.Hands down the best engine for this plane is a YS 140 glow! Anything over 12 1/2 ponds, and areobatics suffer on this plane!!
Doug
Doug
#8
Senior Member
Join Date: Jul 2002
Location: Land O Lakes, WI
Posts: 496
Likes: 0
Received 0 Likes
on
0 Posts
H-9 73inch cap 232 engine choice
I had to go back and read these threads again and make sure we are thinking of the same plane. I also have two H-9 caps and both weigh in at 12-1/2- 13#, either one of them will land at a crawl without tipping a wing and surprised the heck out of me at just how slow you can fly a cap. I had a 40 and 60 size cap that taught me all the nasty habits and stall problems of caps in general and was pleasantly surprised at how the H-9 handled at slow speed. I would stick to glow on this plane and keep the weight down that's where the problems come in, keep it light and powerful and you will avoid a lot of problems.
#9
My Feedback: (9)
Join Date: Aug 2002
Location: Fredericksburg , Va VA
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Cap 232 eng??
Tried a g 23 sick bird. Installed a moki 180 .What a difference. Balance did not change. Building another and have installed a moki 2.1. Should be a tiger. I love the moki's. Have fun.
#11
Junior Member
My Feedback: (87)
Join Date: Oct 2002
Location: Lincoln,
CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Cap 232 73" engine possibilities
I have recently acquired a Hanger 9 Cap 232 73" and the plane has a webra 120 2 stroke in it. I am a mild flier at best and I was wondering if this power plant would be sufficient to fly the plane around casually. I also have a super tiger 3000 would it behoove me to put the 3000 in for the 120.
Thank you
Mark
Thank you
Mark
#13
Senior Member
Join Date: Feb 2002
Location: Land o\'lakes, WI
Posts: 178
Likes: 0
Received 0 Likes
on
0 Posts
73" cap motor
I had a h9 cap and have flown one of rockmons(one has a os 160 and the other a moki 180)I flew the one with the os and it it handles perfectly and lands like a dream just like he said.I like the os160 because it is a sweat running fuel mizer powerhouse.I would not put a heavy motor in this plane because when the wing loading goes up on this plane it will turn nasty.I run both saitos and 2 cycles and the os is the best but the saitos sound soo cool that i have to love them(but they are fuel pigs)stick with a big 2 cycle like the 160 or a 180 saito if you have money to burn for fuel.
#15
My Feedback: (8)
Join Date: Dec 2001
Location: Colorado Springs,
CO
Posts: 1,359
Likes: 0
Received 2 Likes
on
2 Posts
H-9 73inch cap 232 engine choice
MDS 1.48 or MDS 2.18 I've heard great things about these engines. Most of my airplanes, except my twins, are MDS engines and they all run great.
I had a ST 3250 on mine and the power was incredible! Break in took forever but the carb worries with big cats is overrated in my opinion. Stock carb worked just fine. You can pick up a big cat cheap since they have a bad reputation which is not warranted.
I had a ST 3250 on mine and the power was incredible! Break in took forever but the carb worries with big cats is overrated in my opinion. Stock carb worked just fine. You can pick up a big cat cheap since they have a bad reputation which is not warranted.
#16
Senior Member
My Feedback: (1)
Join Date: Dec 2001
Location: New Holland,
PA
Posts: 747
Likes: 0
Received 0 Likes
on
0 Posts
H-9 73inch cap 232 engine choice
I have had mine almost finished for about 3 months. GOnna break it out as soon as I finish the FW3D article for RCU. I put a MVVS 1.6 gasser in the front. Balanced out perfectly.