What a fun airplane my Bonanza was, flew the heck out of her! Bought it in New Jersey, and never flew one before. Made a few take-offs and landings, and set off to Ohio. A later model straight 35 Bonanza, with many "A" model mods. Very light and fast for a 185 take-off HP. Just loved this plane! N 4504 V.
Hi Chris, Your video takes me way back when I had owned a 1948 35 Bonanza SN1325. I had the E185hp engine, that was used on takeoff only, and cruise up to 165hp if needed. Such a wonderful airplane and easy to fly. Very maneuverable , and fast. Bought it in the winter of 1966 and sold her in 1978. I also had the electric prop, and it worked just fine. When I topped her, I took the prop off and greased the bearings and mechanism inside the hub, that controls the pitch of the prop! I also put a spar kit in, since I had the tubular center section. I put new plexiglass all over and a new tail support block(AD note). I sold it for a down payment on a house. Should have kept the airplane!
So I just my F33a I/O 550 at 2400 RPM, 75 deg ROP. I get about 14.5 to 15.0 GPH. All of my flights are 1-1.5 hrs or less. I fly about 10 hours a week. I’m getting 175 cruise and frequently with winds 185-205 across the ground. I illustrate this because I want to give a different perspective. It’s about the mission. I also have some Clarity Aloft HS. Love them. Just bought the new Bose Pro-Flight.
Our 52 C35-pressurized carb is running. 10.5gph @142. Pressure on all pistons seem to be good, but getting ready to replace plugs to see if we can get a little better!
I currently run an A35 with E225-8. I can run 8GPH at 136Kts from 8,500-12,500. Load the plane to the rear of the CG. Keep antennas to a minimum. Use the 88" Beech elec prop and run 2050RPM. Operate LOP, and watch the EGTs.
Hi Jo, that was 9 years ago and I don’t own the Bo anymore, but at that altitude I’m sure it was WOT. More specifically, in the E225 with 6-cyl GEM you have to first pull the throttle back very slightly until the CHTs are balanced - just a tiny pull. Then you can do the mixture pull to LOP. I hope this helps. I’m now flying at the same fuel burn (
I love this video because it reinforces just how efficient the Bonanza design is. Running at 2100 rpm in my Archer II would be about 90 or so knots. Question for you: do you like the "in ear" headset?
Love, love it. It's a Clarity Aloft. Some pilots don't like something inside their ear... I love the passive noise canceling and the sound quality. I can turn the volume very low, which I think is better for my ears. They sell different size tips and I use a small. Thanks for watching my video!
You're welcome! Just curious, but was kind of speed did you get at 75% power in your Bo? I'm searching for an older E-225-8 powered Bonanza, preferably a G35.
Not all E225s will run smoothly LOP. Mine did (just sold my Bo). If your engine runs smooth, all cylinders are in check, why not? My only caution: Do NOT attempt LOP without a 6-cyl GEM, and you must level all EGTs first.. While this video was fun to make, I rarely ever run at these settings--if you want to fly at 130KTAS buy a Cessan or Arrow. Ha! :)
I have had a lot of E series engines, all with the pressure carb. While running LOP is not easy, it can be done, but not as well as with port fuel inj. The key is to make sure your intake boots are all tight, and intake gaskets are good, and no vac leaks. Set the throttle all the way full, then turn it back with the vernier about 1/2"MP to cock the throttle plate in the carb. Then, pull the mixture until it runs quite rough. Now, gently add mixture back toward rich, but very carefully until the engine is running on all 6. You will be 5-20F LOP. It works best at 2150-2200RPM. At lower engine speeds, you get reversion from the cam overlap. At higher around 2300 the pressure across the injector is disturbed.
BOPilot5517 Smooth lean of peak operation with PS5 series carb is achieved by using throttle plate tuning of mixture distribution. After initial leaning to rough operation with full throttle position , reduce throttle angle just slightly until engine gains smoother overall operation. Lean a bit further and repeat the fine adjustment to throttle plate. I see 35 degrees Lean Of Peak routinely using this method. If you were to read the original engine operation manual it CLEARLY stated. )" "Adjust throttle position to obtain smooth engine operation " The best way to see and understand just how sensitive the throttle position effect on engine smoothness can be is to make a 3/4 vernier adjust at altitudes above 10,000 feet. Many have mistaken the resulting roughness as magneto issues at altitude, however it's all about equal mixture distribution as many no doubt have come to understand.
Doc Mirror Absolutely correct in all respects, great information. I will add that the approx 1/2 turn back from full throttle also produces smoother operation on takeoff. I have to agree on the six point Egt equipment being a requirement to really gain a complete understanding of the PS5 nuances in differing situations
What a fun airplane my Bonanza was, flew the heck out of her! Bought it in New Jersey, and never flew one before. Made a few take-offs and landings, and set off to Ohio. A later model straight 35 Bonanza, with many "A" model mods. Very light and fast for a 185 take-off HP. Just loved this plane! N 4504 V.
Hi Chris, Your video takes me way back when I had owned a 1948 35 Bonanza SN1325. I had the E185hp engine, that was used on takeoff only, and cruise up to 165hp if needed. Such a wonderful airplane and easy to fly. Very maneuverable , and fast. Bought it in the winter of 1966 and sold her in 1978. I also had the electric prop, and it worked just fine. When I topped her, I took the prop off and greased the bearings and mechanism inside the hub, that controls the pitch of the prop! I also put a spar kit in, since I had the tubular center section. I put new plexiglass all over and a new tail support block(AD note). I sold it for a down payment on a house. Should have kept the airplane!
7.9 GPH… amazing!
So I just my F33a I/O 550 at 2400 RPM, 75 deg ROP. I get about 14.5 to 15.0 GPH. All of my flights are 1-1.5 hrs or less. I fly about 10 hours a week. I’m getting 175 cruise and frequently with winds 185-205 across the ground. I illustrate this because I want to give a different perspective. It’s about the mission. I also have some Clarity Aloft HS. Love them. Just bought the new Bose Pro-Flight.
Our 52 C35-pressurized carb is running. 10.5gph @142. Pressure on all pistons seem to be good, but getting ready to replace plugs to see if we can get a little better!
I currently run an A35 with E225-8. I can run 8GPH at 136Kts from 8,500-12,500. Load the plane to the rear of the CG. Keep antennas to a minimum. Use the 88" Beech elec prop and run 2050RPM. Operate LOP, and watch the EGTs.
beautiful plane I have a 53 model
WILL Running the CHT so low hurt the engine? New pilot to leaning the engine that much.
Not one bit. As long as the engine is running, you and the airplane will be just fine. Ha!
Cool
I don't think I've come across a Wrangler that will do 165 knots! 🙂
What EGT temperature did it read in LOP at 9000 ft?
You said you had the rpm at 2100 but didn't say what the manifold pressure was. Do you remember what it was? Thanks
Hi Jo, that was 9 years ago and I don’t own the Bo anymore, but at that altitude I’m sure it was WOT. More specifically, in the E225 with 6-cyl GEM you have to first pull the throttle back very slightly until the CHTs are balanced - just a tiny pull. Then you can do the mixture pull to LOP. I hope this helps. I’m now flying at the same fuel burn (
@@mcclernonck Got it and thanks for the reply. Those RV's seem to be great planes. Enjoy it!
How hard is it to find parts for these older bonanzas?
. What engine?
I love this video because it reinforces just how efficient the Bonanza design is. Running at 2100 rpm in my Archer II would be about 90 or so knots. Question for you: do you like the "in ear" headset?
Love, love it. It's a Clarity Aloft. Some pilots don't like something inside their ear... I love the passive noise canceling and the sound quality. I can turn the volume very low, which I think is better for my ears. They sell different size tips and I use a small. Thanks for watching my video!
You're welcome! Just curious, but was kind of speed did you get at 75% power in your Bo? I'm searching for an older E-225-8 powered Bonanza, preferably a G35.
What is your MP and fuel flow indicator showing at this setting? It looks like 21 MP and about 10 gal FF on your steam gauge.
I was always told (by Lew Gage) that you can't do lean of peak on an E225... What are your methods?
Not all E225s will run smoothly LOP. Mine did (just sold my Bo). If your engine runs smooth, all cylinders are in check, why not? My only caution: Do NOT attempt LOP without a 6-cyl GEM, and you must level all EGTs first.. While this video was fun to make, I rarely ever run at these settings--if you want to fly at 130KTAS buy a Cessan or Arrow. Ha! :)
I have had a lot of E series engines, all with the pressure carb. While running LOP is not easy, it can be done, but not as well as with port fuel inj. The key is to make sure your intake boots are all tight, and intake gaskets are good, and no vac leaks. Set the throttle all the way full, then turn it back with the vernier about 1/2"MP to cock the throttle plate in the carb. Then, pull the mixture until it runs quite rough. Now, gently add mixture back toward rich, but very carefully until the engine is running on all 6. You will be 5-20F LOP. It works best at 2150-2200RPM. At lower engine speeds, you get reversion from the cam overlap. At higher around 2300 the pressure across the injector is disturbed.
BOPilot5517
Smooth lean of peak operation with PS5 series carb is achieved by using throttle plate tuning of mixture distribution. After initial leaning to rough operation with full throttle position , reduce throttle angle just slightly until engine gains smoother overall operation. Lean a bit further and repeat the fine adjustment to throttle plate. I see 35 degrees Lean Of Peak routinely using this method. If you were to read the original engine operation manual it CLEARLY stated. )" "Adjust throttle position to obtain smooth engine operation "
The best way to see and understand just how sensitive the throttle position effect on engine smoothness can be is to make a 3/4 vernier adjust at altitudes above 10,000 feet. Many have mistaken the resulting roughness as magneto issues at altitude, however it's all about equal mixture distribution as many no doubt have come to understand.
Doc Mirror
Absolutely correct in all respects, great information.
I will add that the approx 1/2 turn back from full throttle also produces smoother operation on takeoff. I have to agree on the six point Egt equipment being a requirement to really gain a complete understanding of the PS5 nuances in differing situations