The R22 corner: Owning, flying & training questions
There are some very high hour R22s in Oregon operated by HAI. I believe N-721HH had over 20,000hrs when they decided to retire it (can someone confirm this?). N-8072X is a very high hour machine, too, and still being used.
A local mustering pilot here in OZ has a Beta that just clocked over 10,500hrs. It looks like it just rolled out of the factory.
A local mustering pilot here in OZ has a Beta that just clocked over 10,500hrs. It looks like it just rolled out of the factory.
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I wonder why they retired it at 20000 hours? Was there bad corrosion? I always thought the only other reason for not rebuilding would be if the technology type had moved on significantly, which as far as I am aware it has'nt with the robinson type?
No, financial decision I was told. They owned plenty of other R22s with lower hours and decided it wasn't worth it. I believe it was kept for spares.
Crapinson Flimsicopter
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Overflow drain
Hi vertical
Sorry but i did nt quite get your answer!
Ps are you the guy from nepal posting all those amazing pictures? If so i am UTTERLY honored by your intervention!! I spent a few months in nepal when i was 14 or so and i am deeply in love with the nepalese culture!!
Sorry but i did nt quite get your answer!
Ps are you the guy from nepal posting all those amazing pictures? If so i am UTTERLY honored by your intervention!! I spent a few months in nepal when i was 14 or so and i am deeply in love with the nepalese culture!!
Top of the World
.
Hello baobab,
VF is just telling you (with is particular sense of humour
) not to fly Robinson aircrafts. !
Still honoured ?!
(n'est-il pas)
.
i am UTTERLY honored by your intervention
VF is just telling you (with is particular sense of humour
) not to fly Robinson aircrafts. !Still honoured ?!
(n'est-il pas).
Last edited by HeliHenri; 28th Aug 2013 at 10:03.
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Absolutely! Watching his pictures has sparked even more the urge to fly helicopters! Even though i do not even aspire to achieve such level of bliss as vf does enjoy flying amongst those peaks!! Until one day when i will pop up on the helipad and meet vf in person and maybe, hopefully, ride with him!!!
VF i am still UTTERLY honored and i would be very honored to have you as a frined on fb! If so please send me a pvt message! Till then NAMASTE!
PS nobody has answer my question yet!!
VF i am still UTTERLY honored and i would be very honored to have you as a frined on fb! If so please send me a pvt message! Till then NAMASTE!
PS nobody has answer my question yet!!
baobab
There is a drain on each tank for sampling fuel
There is a breather on each which goes to the mast for venting I imagine fuel might live in that if it is really full
But I think the answer is that there is enough free space between the tanks full and internally to provide expansion so no real need for a overfill drain
There is a breather on each which goes to the mast for venting I imagine fuel might live in that if it is really full
But I think the answer is that there is enough free space between the tanks full and internally to provide expansion so no real need for a overfill drain
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Another R22 question, bear with me!
Hi folks
I can not quite understand or see where the carb heat system gets its hot air from! Anyone can shed a light on the matter? I know that one hose goes from the intake on the right hand side of the fuselage to the air box, but i can not see from any picture where the hose carrying hot air to the air box comes from!
Many thanks
Baobab72
I can not quite understand or see where the carb heat system gets its hot air from! Anyone can shed a light on the matter? I know that one hose goes from the intake on the right hand side of the fuselage to the air box, but i can not see from any picture where the hose carrying hot air to the air box comes from!
Many thanks
Baobab72
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Hot air scoop
Hi, i was familiar with that picture however it does not show the hole of the hot air scoop, which i guess is at the base of the scoop.
Kind regards
Baobab72
Kind regards
Baobab72
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Excellent answer Aucky,
and Baobab yes there is a hole there, surprise surprise.
Now, if your moniker is indicative of residence in the upper Kimberly I suggest that during the tropical wet season you take particular care in examining, the upper parts of the lower sheave for foreign objects before start. One day I had my usual quick look about, started up and as usual stayed outside to examine for oil leaks etc., just in time to see a large green frog go round on the first revolution of the belts and be spat out on the ground, then shook its silly head and hopped off.
Another very wet day some minutes after take off, one lumbered up onto the top of the inst console and had a good look about at the weather as if to agree with me that it was - rather patchy.
cheers tet.
and Baobab yes there is a hole there, surprise surprise.
Now, if your moniker is indicative of residence in the upper Kimberly I suggest that during the tropical wet season you take particular care in examining, the upper parts of the lower sheave for foreign objects before start. One day I had my usual quick look about, started up and as usual stayed outside to examine for oil leaks etc., just in time to see a large green frog go round on the first revolution of the belts and be spat out on the ground, then shook its silly head and hopped off.
Another very wet day some minutes after take off, one lumbered up onto the top of the inst console and had a good look about at the weather as if to agree with me that it was - rather patchy.
cheers tet.
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R22 carburetor
Hi folks
Does the carburetor of the R22 model Beta 2 has the accelerator pump and the idling system? Does the crankshaft has a flywheel?
Many thanks and strap on for more questions!!!
Baboba72
Does the carburetor of the R22 model Beta 2 has the accelerator pump and the idling system? Does the crankshaft has a flywheel?
Many thanks and strap on for more questions!!!
Baboba72
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Starter system
Hi folks
I have a couple of questions about the starting system of the r22 beta 2.
Here is what i know or i oughtta say, here is what i hope i know!
The starting system is designed to crank the engine up by imparting a rotary motion to the cranshaft via a battery powered electrical starter motor engaging a stater ring mounted on the same crankshaft and controlled by the IGNITION key: turning the key into the START position will ground the right magneto, will energize the starting vibrator system on the left magneto and will remotely close the starter relay allowing battery power to flow from the battery relay through a heavy duty wiring to the starter motor, driving a Bendix pinion out, engaging the starter ring on the crankshaft, imparting a rotary to the same crankshaft cranking the engine up and triggering the STARTER ON light in the cockpit. Once the engine has started and the engine drives the pinion faster than the starter motor, a clutch will drive the pinion out and away from the starter ring disengaging the starter extinguishing the STARTER ON light as well, the starting vibration system will be de-energized, the right magneto will be unabled and the key will spring back to the BOTH position allowing to resume normal dual magneto operations.
Should the STARTER ON light fail to extinguish once the key is returned to OFF, immediatly shut down the engine by pulling the mixture control and by turning the BATTERY master off and investigate the problem.
Should a fire occur while starting the engine the POH call s for:
1) continue cranking the engine to suck the flames and the excessive fuel out of the carburetor and into the engine
2) if the engine starts, run at 50 to 60% for a short time - ? -, shut down and then investigate the problem
3) if the engine fails to start, shut the fuel and the BATTERY master off
4) extinguish the fire with the extinguisher, wool blanket or dirt
5) investigate the problem
The questions are:
1) I dont see a wiring going from the ignition switch to the starter relay, is there a wire to remotely controlling the power supply from the starter relay to the starter motor? Is the starter relay energized at all times from the battery relay as long as the engine is running?
2) What does it mean for a "short time" in the fire during start procedure? Do you have any amount of seconds you use?
3) I couldn t find in the limitations section a time limitation on the starter - how many start attempts within a given timeframe nor a minimum voltage for a successful start, are there any, as far as you know?
Many thanks for your willingness!!!
Baobab72
I have a couple of questions about the starting system of the r22 beta 2.
Here is what i know or i oughtta say, here is what i hope i know!
The starting system is designed to crank the engine up by imparting a rotary motion to the cranshaft via a battery powered electrical starter motor engaging a stater ring mounted on the same crankshaft and controlled by the IGNITION key: turning the key into the START position will ground the right magneto, will energize the starting vibrator system on the left magneto and will remotely close the starter relay allowing battery power to flow from the battery relay through a heavy duty wiring to the starter motor, driving a Bendix pinion out, engaging the starter ring on the crankshaft, imparting a rotary to the same crankshaft cranking the engine up and triggering the STARTER ON light in the cockpit. Once the engine has started and the engine drives the pinion faster than the starter motor, a clutch will drive the pinion out and away from the starter ring disengaging the starter extinguishing the STARTER ON light as well, the starting vibration system will be de-energized, the right magneto will be unabled and the key will spring back to the BOTH position allowing to resume normal dual magneto operations.
Should the STARTER ON light fail to extinguish once the key is returned to OFF, immediatly shut down the engine by pulling the mixture control and by turning the BATTERY master off and investigate the problem.
Should a fire occur while starting the engine the POH call s for:
1) continue cranking the engine to suck the flames and the excessive fuel out of the carburetor and into the engine
2) if the engine starts, run at 50 to 60% for a short time - ? -, shut down and then investigate the problem
3) if the engine fails to start, shut the fuel and the BATTERY master off
4) extinguish the fire with the extinguisher, wool blanket or dirt
5) investigate the problem
The questions are:
1) I dont see a wiring going from the ignition switch to the starter relay, is there a wire to remotely controlling the power supply from the starter relay to the starter motor? Is the starter relay energized at all times from the battery relay as long as the engine is running?
2) What does it mean for a "short time" in the fire during start procedure? Do you have any amount of seconds you use?
3) I couldn t find in the limitations section a time limitation on the starter - how many start attempts within a given timeframe nor a minimum voltage for a successful start, are there any, as far as you know?
Many thanks for your willingness!!!
Baobab72
Looks like the starter relay gets its power via the ignition switch, low rpm warning unit and radio relay. This may just be an ease of routing thing, where it's simpler to take power from one point to another rather than double up on wiring, or there may be other reasons - not sure. Power to the ignition switch itself will be interrupted if the rotor brake is on.
As far as starter limitations go, I'd be pretty confident it's much like your car - you could keep cranking as long as the battery held up and you wouldn't damage the starter motor. It's not like a turbine where it has to spin up to a gazillion rpm, and nor do you have to worry about hot starts.
As far as starter limitations go, I'd be pretty confident it's much like your car - you could keep cranking as long as the battery held up and you wouldn't damage the starter motor. It's not like a turbine where it has to spin up to a gazillion rpm, and nor do you have to worry about hot starts.
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Robinson R22
Hi all,
I am new to the forum and would like to say hi to everyone. The forum seems to have a vast wealth of knowledge and I hope to learn more as I progress.
I do have a question about the R22 mass and balance. My apologies if it’s been asked before I did search but maybe I over looked the answer.
My my question is this: what is the arm for lateral mass and balance ?
In in the tech log I have access to then longitudinal arm/moment is calculated for that specific helicopter but there is no mention of lateral arm.
If if anyone could shed some light on this I’d really appreciate it.
Thanks again 👍
I am new to the forum and would like to say hi to everyone. The forum seems to have a vast wealth of knowledge and I hope to learn more as I progress.
I do have a question about the R22 mass and balance. My apologies if it’s been asked before I did search but maybe I over looked the answer.
My my question is this: what is the arm for lateral mass and balance ?
In in the tech log I have access to then longitudinal arm/moment is calculated for that specific helicopter but there is no mention of lateral arm.
If if anyone could shed some light on this I’d really appreciate it.
Thanks again 👍