RHC Blade AD Update
feel free to contact us ms@robinsonhelicopters.org

 

zeroechoecho
Member Since : 2007
Posts(162)
--

RHC Blade AD Update

01-21-2008 05:59:55

I apologize if this has already been posted.

January 18,2008



Mr. Pete Riedl

Robinson Helicopter Company

290 I Airport Drive

Torrance, California 90505-6115



Reference: AMOC request to the FAA received on January 17,2008.



Dear Mr. Riedl,



Approval of Alternative Method Of Compliance (AMOC) for AD 2007-26-12



The FAA concurs that the preflight check required by paragraph (c) of the AD is not required provided the following actions are performed:



1. At every 100 hour or annual inspection, whichever occurs first, inspect the main rotor blade in accordance with paragraph (a) of the AD; and



2. Update the applicable "Pilot Operating Handbook and FAA Approved Rotorcraft Flight

Manual" to include revisions dated 20 April 2007, and later revisions.



These actions provide an acceptable level of safety in accordance with paragraph (d) of this AD.



This AMOC may be copied and distributed to any interested party.



If you have any questions regarding this approval, please contact Mr. Fred Guerin at (562) 627-5232, or Mr. Eric Schrieber at (562) 627-5348.



Sincerely,



Kevin Hull

Manager, Los Angeles Aircraft Certification Office

Replies

aosuna
Member Since : 2015
Posts(8)
--
01-22-2008 03:47:37
Have you verify if this works also for the R44,  because on the AD it says on paragraph d)  that we must contact Fred Guerin for the R44,  can the response added work for the R44 also? 
zeroechoecho
Member Since : 2007
Posts(162)
--
01-22-2008 04:29:57
Sorry,

I don't have any answers for the R44.  Perhaps someone else will know something.
MLH
Member Since : 2007
Posts(99)
--
01-22-2008 08:51:39
The AMOC letter references AD 2007-26-12. At the top of that AD, in the Applicability paragraph, it lists the R44. As I understand it, all I need to do is:

1) Have my mechanic do the initial inspection within 10 hours in service from to date of the AD.

2) Make sure my R44 POH is up to date with the 20 April 2007 blade inspection revision.

3) Have my mechanic reinspect the blades again at every 100 hour or annual inspection.

I verified this with Eric Schrieber at the FAA office this morning. 

Since I made a habit of doing a blade inspection at every preflight before this AD, nothing really changes with the way I operate the aircraft.

A mechanic at at a major RHC service center told me that on aircraft that spend most of their time above 500 AGL and out of dust and debris, the bond line won't show in the entire 2200 hour life of the blade. I can see where that would be possible as my blades have only a few pits of paint missing at the last foot before the tip at 100 hours.
nskaye
Member Since : 2007
Posts(89)
--
01-22-2008 11:14:23
I checked with AOPA and they say that the letter is legitimate and is all we have to do to comply.  AOPA was instrumental in getting this done for all of us.  If you're not yet an AOPA member, please join.  They are very helpful to all pilots, even us rotorheads.

NSK
nskaye
Member Since : 2007
Posts(89)
--
01-29-2008 06:40:25
I am having extreme trouble with Airwolf.  I ordered the blade tape and then the AMOC came out so I returned it.  Their website says full refund if returned within 30 days minus shipping.  Airwolf is claiming they can charge a 20% (500.00) restocking fee!  Any company that wants to rape customers is unethical!  Also, Johnny Quest was the rudest man I have ever spoken to.  I tried speaking with him after he put our secretary in tears due to being so rude with her.  He refused to give me their address so I could file a complaint with the State's Attorney General (I was able to get it off the shipping label we had saved).  He also insisted that they have an in with the FAA and he knows that the AMOC will be rescinded so they can sell their tape.  I have contacted the Ohio AG's office as well as the Ohio Secretary of State to complain.  I would advise all pilots to avoid this company.  By the way, the tape kit itself was described by our maintenance people as "cheesy." 

Neil
Airwolf
Member Since : 2015
Posts(12)
--
01-31-2008 06:26:20
Mr. Kaye,

You are distorting the facts  which we take very seriously. At no time did anyone talk to your secretary rudely and we resent that you would even imply that we would rape a customer. How crude and thoughtless.  You were told there would be a 20% restock charge for the kit if you wanted to return it. RHC charges 25% for parts return.  No where on our website www.airwolfaerospace.com do we say you have 30 days to return a purchase. You kept referring to the airwolf.com website. Airwolf.com does not sell blade tape.  Airwolf Aerospace LLC does.  Airwolf Aerospace LLC holds the STC.  You purchased the tape kit from Airwolf Aerospace LLC. You also refer to an outdated AMOC issued to RHC on that someone faxed to us. The current RHC AMOC dated 1/23/08 spells out what you have to do to comply and you still have to inspect the blades daily and if any paint is missing from the bond line, the effected area must be painted before further flight.  If you get ramp checked and are found to have paint missing you will be in violation of the FARS.

We deal with the FAA Aircraft Certification Offices on a daily basis. We did not tell you the AMOC would be rescinded, I tried to get across to you that the one you were referencing was already superseded, but you refused to listen.

We resent the fact your reference to our rotor blade tape kit as "cheesy".  The tape was specially designed for us by the giant 3M Corporation. Their rotor blade tape has been tested over time on Chinooks & Blackhawks  starting with the Gulf war, and seen incredible results.  Using their 100+ yrs of expertise, we had them custom design a tape and more importantly an adhesive that would work on the tiny R22 blades. It was very expensive to have 3M make a special run of a product for the Robinson helicopter.  We did it because is solves the blade delamination problem. FYI,  This tape is similar to the tape that RHC has been studying for over a year. We do our homework. So your maintenance people are ill informed at best.

We will not debate you any further in a public forum.  Either retract your slanderous and libelous comments from this and any other websites you have posted them onto or we will seek punitive damages in the court system.
Airwolf Aerospace LLC.
Ducati
Member Since : 2015
Posts(191)
--
01-31-2008 08:55:09
Mr. Kaye,

You are distorting the facts  which we take very seriously. At no time did anyone talk to your secretary rudely and we resent that you would even imply that we would rape a customer. How crude and thoughtless.  You were told there would be a 20% restock charge for the kit if you wanted to return it. RHC charges 25% for parts return.  No where on our website www.airwolfaerospace.com do we say you have 30 days to return a purchase. You kept referring to the airwolf.com website. Airwolf.com does not sell blade tape.  Airwolf Aerospace LLC does.  Airwolf Aerospace LLC holds the STC.  You purchased the tape kit from Airwolf Aerospace LLC. You also refer to an outdated AMOC issued to RHC on that someone faxed to us. The current RHC AMOC dated 1/23/08 spells out what you have to do to comply and you still have to inspect the blades daily and if any paint is missing from the bond line, the effected area must be painted before further flight.  If you get ramp checked and are found to have paint missing you will be in violation of the FARS.

We deal with the FAA Aircraft Certification Offices on a daily basis. We did not tell you the AMOC would be rescinded, I tried to get across to you that the one you were referencing was already superseded, but you refused to listen.

We resent the fact your reference to our rotor blade tape kit as "cheesy".  The tape was specially designed for us by the giant 3M Corporation. Their rotor blade tape has been tested over time on Chinooks & Blackhawks  starting with the Gulf war, and seen incredible results.  Using their 100+ yrs of expertise, we had them custom design a tape and more importantly an adhesive that would work on the tiny R22 blades. It was very expensive to have 3M make a special run of a product for the Robinson helicopter.  We did it because is solves the blade delamination problem. FYI,  This tape is similar to the tape that RHC has been studying for over a year. We do our homework. So your maintenance people are ill informed at best.

We will not debate you any further in a public forum.  Either retract your slanderous and libelous comments from this and any other websites you have posted them onto or we will seek punitive damages in the court system.
Airwolf Aerospace LLC.

WOW!

Any thoughts that Neil might have been over exaggerating the customer services issues with Airwolf were just completely illuminated in my mind.  Nothing that Neil stated is as damaging as the response from Airwolf.  A professional company simply does not come into a public forum and try and intimidate current and potential future customers.  This may very well be the most unprofessional response I have ever seen from any business I have ever dealt with in aviation or elsewhere. 

The phone number on Airwolf.com is the phone number one is directed to call when ordering the tape.  On Airwolf.com, it does state:

Airwolf Guarantee
View any product for 30 days. If for any reason you do not like it, even if you don't like the color of it, return it to us in new condition for a full refund. [Less shipping of course]. Airwolf will never stick you with a kit you don't need or can't use. We understand that many times, the proposed installation is very tight, and that until you have our filter kit in your hands, you really don't know if it will fit or not. You can have complete confidence knowing that Airwolf stands behind their products.


I think that your use of a different website does not remove any obligation of yours to honor your guarantee, especially since you are using an almost identical business name and phone number.  This is very unethical in my opinion.  And I just called the number listed on the websites and the lady answered "Airwolf" NOT Airwolf Aerospace!

Nothing Neil stated is libelous in anyway.  He has made no statements that appear to be untrue. If anything, you backed up each and every one of his claims. 


simon
Member Since : 2007
Posts(321)
--
01-31-2008 10:03:36
Mr. Quest

Perhaps, now that your attention has been drawn to this forum, you could answer a question that has been debated on other forums but with little or no scientific input.

There are obvious benefits to having your tape installed and working as expected. Is there a power penalty with the tape installed?

Have you done any testing on this?

Thank You

traviscfi
Member Since : 2014
Posts(157)
--
02-01-2008 05:26:02
I think you might be on to something CJ!! I posted the question about the power penalty of this tape on the forum as well as emailing them directly and have not seen a response from either. This either means they are too busy for customers or do not want to answer the question. They did respond pretty quick to Neil's post so you tell me which one??? Since the Robinson rotor systems are VERY low inertia I am very concerned about adding even a few ounces to the end of the blade. I would rather have a blade delaminate in flight then fail from the added weight and drag of blade tape. After all these blades aren't bullet proof like those on a Jet Ranger.

I am also curious to know if RHC has been testing this tape for a whole year then why aren't they using it? Frank is one of the leading blade engineers in the business and RHC produces more civil helicopter each year than all the other manufacturers combined so they must have figured out a few things.

Also if the glue they use to bond the skin to the spar fails after exposure to the elements then wouldn't the glue on some tape also fail? I have flown a helicopter that has blade tape that is coming off and it sure made for a rough ride.

So Airwolf or Airwolf Aerospace, LLC. or whatever you want to call yourself maybe instead of making ideal threats about court actions to your customers you should answer the questions and concerns we have. Really since the LA ACO issued the AMOC which eliminated the requirement for recording the preflight inspection in the logbook I am not all the concerned about having to paint the blades every 500-800 hours. After all we can paint the blades 3-4 times for the same price as the STC from you.

We all anxiously await your response to these questions.
Blue Thunder
Member Since : 2007
Posts(156)
main
02-01-2008 06:24:15
During the safety course a couple weeks back, I asked Frank himself about the use of blade tape. He said it wasn't necessary, and recommended staying away from it.  He didn't really explain further, but it was explained that the ships with the paint worn off were used extensively near the ground, moreso "cattle mustering". I haven't seen a ship yet where tape didn't rob you of some power.
Pitchit
Member Since : 2015
Posts(3)
--
02-01-2008 06:50:21
Mr. Kaye,

You are distorting the facts  which we take very seriously. At no time did anyone talk to your secretary rudely and we resent that you would even imply that we would rape a customer. How crude and thoughtless.  You were told there would be a 20% restock charge for the kit if you wanted to return it. RHC charges 25% for parts return.  No where on our website www.airwolfaerospace.com do we say you have 30 days to return a purchase. You kept referring to the airwolf.com website. Airwolf.com does not sell blade tape.  Airwolf Aerospace LLC does.  Airwolf Aerospace LLC holds the STC.  You purchased the tape kit from Airwolf Aerospace LLC. You also refer to an outdated AMOC issued to RHC on that someone faxed to us. The current RHC AMOC dated 1/23/08 spells out what you have to do to comply and you still have to inspect the blades daily and if any paint is missing from the bond line, the effected area must be painted before further flight.  If you get ramp checked and are found to have paint missing you will be in violation of the FARS.

We deal with the FAA Aircraft Certification Offices on a daily basis. We did not tell you the AMOC would be rescinded, I tried to get across to you that the one you were referencing was already superseded, but you refused to listen.

We resent the fact your reference to our rotor blade tape kit as "cheesy".  The tape was specially designed for us by the giant 3M Corporation. Their rotor blade tape has been tested over time on Chinooks & Blackhawks  starting with the Gulf war, and seen incredible results.  Using their 100+ yrs of expertise, we had them custom design a tape and more importantly an adhesive that would work on the tiny R22 blades. It was very expensive to have 3M make a special run of a product for the Robinson helicopter.  We did it because is solves the blade delamination problem. FYI,  This tape is similar to the tape that RHC has been studying for over a year. We do our homework. So your maintenance people are ill informed at best.

We will not debate you any further in a public forum.  Either retract your slanderous and libelous comments from this and any other websites you have posted them onto or we will seek punitive damages in the court system.
Airwolf Aerospace LLC.


WOW!!

Talk about virtually guaranteeing that no person from this forum makes a purchase from your company...

Nice piece of marketing!
MLH
Member Since : 2007
Posts(99)
--
02-01-2008 07:44:41
Greg,

Well said!

I've deleted my bookmark to Airwolf Aerospace, I'll consider blade tape in the future if Robinson comes out with it.

One concern I had even before this blowup was that with the tape covering the bond line, it would be more difficult to detect lifting due to adhesion failure of the glue as compared to seeing a crack in the painted surface.
13snoopy
Member Since : 2007
Posts(339)
--
02-02-2008 01:17:14
Mr. Kaye,

You are distorting the facts  which we take very seriously. At no time did anyone talk to your secretary rudely and we resent that you would even imply that we would rape a customer. How crude and thoughtless.  You were told there would be a 20% restock charge for the kit if you wanted to return it. RHC charges 25% for parts return.  No where on our website www.airwolfaerospace.com do we say you have 30 days to return a purchase. You kept referring to the airwolf.com website. Airwolf.com does not sell blade tape.  Airwolf Aerospace LLC does.  Airwolf Aerospace LLC holds the STC.  You purchased the tape kit from Airwolf Aerospace LLC. You also refer to an outdated AMOC issued to RHC on that someone faxed to us. The current RHC AMOC dated 1/23/08 spells out what you have to do to comply and you still have to inspect the blades daily and if any paint is missing from the bond line, the effected area must be painted before further flight.  If you get ramp checked and are found to have paint missing you will be in violation of the FARS.

We deal with the FAA Aircraft Certification Offices on a daily basis. We did not tell you the AMOC would be rescinded, I tried to get across to you that the one you were referencing was already superseded, but you refused to listen.

We resent the fact your reference to our rotor blade tape kit as "cheesy".  The tape was specially designed for us by the giant 3M Corporation. Their rotor blade tape has been tested over time on Chinooks & Blackhawks  starting with the Gulf war, and seen incredible results.  Using their 100+ yrs of expertise, we had them custom design a tape and more importantly an adhesive that would work on the tiny R22 blades. It was very expensive to have 3M make a special run of a product for the Robinson helicopter.  We did it because is solves the blade delamination problem. FYI,  This tape is similar to the tape that RHC has been studying for over a year. We do our homework. So your maintenance people are ill informed at best.

We will not debate you any further in a public forum.  Either retract your slanderous and libelous comments from this and any other websites you have posted them onto or we will seek punitive damages in the court system.
Airwolf Aerospace LLC.
()
LOL! LOL!
The last line written in the above post actually made me laugh out loud. "...retract your slanderous and libelous comments"...?  Oh brother.
What's next, you gonna start pounding on the table with your shoe?
Note to this website's owners:
Perhaps in addition to SpellCheck you could also consider adding a legal dictionary to the forum? The author of the above post sure could have used one before he posted! ::)
zeroechoecho
Member Since : 2007
Posts(162)
--
02-02-2008 01:50:09
Agreed!  Perhaps the most unprofessional response I've ever seen in a public forum by any company in business.  If I recall correctly the owner of the company in question also liked to get into dust-ups with people on the Cirrus forum. 

I installed one of his air/oil separators on my old Cirrus.  It worked OK and I had considered putting one on my R44.  After his response I will certainly go with the competition should I need a separator. 

IMHO I believe Mr. Quest owes an apology AND a refund to the individual in question.  In this case there is a bit of blame to go around for both parties, but Mr. Quest will need to go above and beyond the call of duty if he wishes to repair his reputation on this forum!
MainRotor
Member Since : 2015
Posts(149)
--
02-02-2008 05:11:33
The AD only applies to:

R22s through SN 4100
Raven Is through SN 1670
Raven IIs through SN 11570

Did RHC change the blades at one point, or the paint or something on the outside?
Blue Thunder
Member Since : 2007
Posts(156)
main
02-02-2008 06:05:15
MainRotor,

It was explained to me that Robinson tightened the tolerance of the skin to spar bond line for blades produced after the serial numbers listed in the AD.

Mike

Yep, exactly what they said to me.  I have a newer SN.
MLH
Member Since : 2007
Posts(99)
--
02-02-2008 07:25:37
MainRotor,

It was explained to me that Robinson tightened the tolerance of the skin to spar bond line for blades produced after the serial numbers listed in the AD.

Mike
Airwolf
Member Since : 2015
Posts(12)
--
02-03-2008 10:32:43
Mr. Quest

Perhaps, now that your attention has been drawn to this forum, you could answer a question that has been debated on other forums but with little or no scientific input.

There are obvious benefits to having your tape installed and working as expected. Is there a power penalty with the tape installed?

Have you done any testing on this?

Thank You

Simon,

There is no power penalty for the installation of our tape kit.  The FAA test pilot who flew along all our certification test flights took extensive readings before and after the installation of our tape.  No loss in power or performance were observed.  Therefore no flight manual supplement was required with our STC.  If the test pilot had seen any difference before and after, we would then of had to provide performance charts.  So while I have seen no debates about this subject, hopefully this puts this to bed.  Our kits are deceptively simple.  It took months and months  of hard work and extensive testing to find just the right combination which got us the most coverage of the bond line, with the least amount of performance loss.  We ended up getting at least 36" of tape on the rotor blade, without any loss of power and the FAA witnessed this on our final certification flights. We are getting calls and emails from around the world wanting us to come up with our tape system for other helicopters, but most operators totally underestimate how difficult it is protect a blade AND have no performance loss.

Hope this helps  Jonny Quest
Airwolf
Member Since : 2015
Posts(12)
--
02-04-2008 01:02:17
Mr. Kaye,

You are distorting the facts  which we take very seriously. At no time did anyone talk to your secretary rudely and we resent that you would even imply that we would rape a customer. How crude and thoughtless.  You were told there would be a 20% restock charge for the kit if you wanted to return it. RHC charges 25% for parts return.  No where on our website www.airwolfaerospace.com do we say you have 30 days to return a purchase. You kept referring to the airwolf.com website. Airwolf.com does not sell blade tape.  Airwolf Aerospace LLC does.  Airwolf Aerospace LLC holds the STC.  You purchased the tape kit from Airwolf Aerospace LLC. You also refer to an outdated AMOC issued to RHC on that someone faxed to us. The current RHC AMOC dated 1/23/08 spells out what you have to do to comply and you still have to inspect the blades daily and if any paint is missing from the bond line, the effected area must be painted before further flight.  If you get ramp checked and are found to have paint missing you will be in violation of the FARS.

We deal with the FAA Aircraft Certification Offices on a daily basis. We did not tell you the AMOC would be rescinded, I tried to get across to you that the one you were referencing was already superseded, but you refused to listen.

We resent the fact your reference to our rotor blade tape kit as "cheesy".  The tape was specially designed for us by the giant 3M Corporation. Their rotor blade tape has been tested over time on Chinooks & Blackhawks  starting with the Gulf war, and seen incredible results.  Using their 100+ yrs of expertise, we had them custom design a tape and more importantly an adhesive that would work on the tiny R22 blades. It was very expensive to have 3M make a special run of a product for the Robinson helicopter.  We did it because is solves the blade delamination problem. FYI,  This tape is similar to the tape that RHC has been studying for over a year. We do our homework. So your maintenance people are ill informed at best.

We will not debate you any further in a public forum.  Either retract your slanderous and libelous comments from this and any other websites you have posted them onto or we will seek punitive damages in the court system.
Airwolf Aerospace LLC.

WOW!


Any thoughts that Neil might have been over exaggerating the customer services issues with Airwolf were just completely illuminated in my mind.  Nothing that Neil stated is as damaging as the response from Airwolf.  A professional company simply does not come into a public forum and try and intimidate current and potential future customers.  This may very well be the most unprofessional response I have ever seen from any business I have ever dealt with in aviation or elsewhere. 

The phone number on Airwolf.com is the phone number one is directed to call when ordering the tape.  On Airwolf.com, it does state:

Airwolf Guarantee
View any product for 30 days. If for any reason you do not like it, even if you don't like the color of it, return it to us in new condition for a full refund. [Less shipping of course]. Airwolf will never stick you with a kit you don't need or can't use. We understand that many times, the proposed installation is very tight, and that until you have our filter kit in your hands, you really don't know if it will fit or not. You can have complete confidence knowing that Airwolf stands behind their products.


I think that your use of a different website does not remove any obligation of yours to honor your guarantee, especially since you are using an almost identical business name and phone number.  This is very unethical in my opinion.  And I just called the number listed on the websites and the lady answered "Airwolf" NOT Airwolf Aerospace!

Nothing Neil stated is libelous in anyway.  He has made no statements that appear to be untrue. If anything, you backed up each and every one of his claims. 


Airwolf Reponse to Moderator;
I did not try to intimidate anyone. I tried to address the points by Mr. Kaye and defend the company. My response's were directed at the post by Mr. Kaye. As the moderator of this site, I would expect you not to draw any conclusions without knowing all the facts and stay a neutral third party.  I do know that management at Airwolf Filter Corp is very upset with the comments published on this site and are considering their legal options. The have a 30+ yr history of superb products and customer service and do not like being drawn linked to an unhappy customer of Airwolf Aerospace LLC for which they have had no business dealings with whatsoever.

While we may share a common phone number with other Airwolf companies, when you tell the receptionist you want to talk about blade tape. you are connected with a representative of Airwolf Aerospace LLC. Airwolf Aerospace LLC is the company that holds the STC and mfgs and markets the blade tape. Airwolf Filter Corp has nothing to do with it.  The invoice provided to the customer for blade tape clearly states Airwolf Aerospace LLC at the top. And anything to do with blade tape is found on the airwolfaerospace.com website. 

You are in error by quoting a return policy by Airwolf Filter Corp that was copied and pasted from the airwolf.com website.  This is not  the policy of Airwolf Aerospace LLC. The return policy for Airwolf Aerospace LLC is a 20% restock charge.

I have tried to address each point you made paragraph by paragraph

Airwolf Aerospace LLC.
Airwolf
Member Since : 2015
Posts(12)
--
02-04-2008 01:44:55
I think you might be on to something CJ!! I posted the question about the power penalty of this tape on the forum as well as emailing them directly and have not seen a response from either. This either means they are too busy for customers or do not want to answer the question. They did respond pretty quick to Neil's post so you tell me which one??? Since the Robinson rotor systems are VERY low inertia I am very concerned about adding even a few ounces to the end of the blade. I would rather have a blade delaminate in flight then fail from the added weight and drag of blade tape. After all these blades aren't bullet proof like those on a Jet Ranger.

I am also curious to know if RHC has been testing this tape for a whole year then why aren't they using it? Frank is one of the leading blade engineers in the business and RHC produces more civil helicopter each year than all the other manufacturers combined so they must have figured out a few things.

Also if the glue they use to bond the skin to the spar fails after exposure to the elements then wouldn't the glue on some tape also fail? I have flown a helicopter that has blade tape that is coming off and it sure made for a rough ride.

So Airwolf or Airwolf Aerospace, LLC. or whatever you want to call yourself maybe instead of making ideal threats about court actions to your customers you should answer the questions and concerns we have. Really since the LA ACO issued the AMOC which eliminated the requirement for recording the preflight inspection in the logbook I am not all the concerned about having to paint the blades every 500-800 hours. After all we can paint the blades 3-4 times for the same price as the STC from you.

We all anxiously await your response to these questions.


Travis,

We have had a problem with our email server, and apologize for not responding to your question.  Also, since the AD hit our phones have been ringing off the wall so getting the time to answer emails has been problem.. We are not avoiding questions. Just trying to find the time to give individual attention to all.

There is no performance penalty with out tape.  The FAA test pilot had a battery of test parameters to be verified before the tape was applied to both an R22 and an R44, and after the tape was applied.  The FAA found no loss of power with the addition of our tape kit. And because of them not finding any power loss, no flight manual supplement was required with our STC. If a power loss would have been discovered by the FAA test pilot, we would have produce a flight manual supplement with applicable HIGE and HOGE charts.  We have no charts and no flight manual supplement so this proves as clear as I can make it, that with the installation of our tape kit, there is no performance penalty.

Your concerns about our tape adding weight are unfounded.  Your blades already have tip weights that are pounds of weight at the end of the blade. Our adds grams to the blade. The CF [centrifugal force] loading designed into the blades can more than adequately handle the grams we added. There is no drag in flight with our blade tape.I don't really know what you are driving at with this question so I am unclear how to properly address it. Our tape takes over 100# per sq in to remove it, so it is not coming off after the adhesive cures. And we epoxy all the edges of the tape so air cannot get under it and try and peel it off.

RHC is not using tape because Frank does not want to use it.  His engineers want to, but the name on the side of the helicopter still says Robinson, and Frank has the final say.  Frank is not one of the leading blade engineers.  His engineers are good guys and they designed a decent blade, but there are blade engineers at other helicopter companies that are far ahead of RHC. Quantity is not everything.

Our blade tape does not effect the acoustics of the blade, and you can still do the tape test to see if the blade is debonding with our tape installed. The adhesive is attacked by dirt that bores holes into the adhesive. This is why keeping the bond line protected by paint or our tape kit, is so important.  Our tape permanently prevents the dirt from getting to the adhesive in the first place. If you have blade delamination after our tape is installed, that would mean that there was either a manufacturing defect, or an operator error, like allowing it to be placed to close to an overhead heater.

Our blade tape and AMOC, make it easier to comply with the AD. It is your choice.  You can choose to continually repaint your blades or install our tape.  The RHC AMOC mainly eliminates the preflight signoff and the requirement of painting the blades if any paint is missing on the blade.  If you have any paint missing on the bond line, you still have to paint the effected area, with 2 part polyurethane paint, which is repetitive and not cheap. It is your choice

I hope this answers your questions

Airwolf Aerospace LLC