Engine STCs - Revision history

Charlie Bobbish: Added a category

2012-12-30T01:49:23Z

Added a category

← Older revision		Revision as of 01:49, 30 December 2012
Line 30:		Line 30:

	There are many other one-off conversions with 4 and 6 cylinder engines installed on the Cheetah/Tiger airframe, but none are multiple STCs or available to the public at this time.		There are many other one-off conversions with 4 and 6 cylinder engines installed on the Cheetah/Tiger airframe, but none are multiple STCs or available to the public at this time.

			[[Category:STC]]

Markm at 06:53, 23 December 2012

2012-12-23T06:53:37Z

← Older revision		Revision as of 06:53, 23 December 2012
Line 13:		Line 13:
	Maynard also received approval to swap the Lynx prop, spinner, and oil cooler onto the earlier 2 place series for higher engine Redline and improved T/O and climb performance, '''SA2169NM'''.		Maynard also received approval to swap the Lynx prop, spinner, and oil cooler onto the earlier 2 place series for higher engine Redline and improved T/O and climb performance, '''SA2169NM'''.

	[http://~~www.~~airmodsnw.com/~~html~~/~~stc_s.html~~ Ken Blackman], as Maynard's ex-partner, duplicated the O-320 conversion effort with some additional changes to receive '''SA4387NM'''.		[http://airmodsnw.com/page/grumman-stcs Ken Blackman], as Maynard's ex-partner, duplicated the O-320 conversion effort with some additional changes to receive '''SA4387NM'''.

	Ken received approval to move the [http://www.sensenich.com/stc/am152pg3.htm "Sparrow Hawk"] high compression STC from Cessna 152s to the AA-1C Lynx, '''SA641NW'''.		Ken received approval to move the [http://www.sensenich.com/stc/am152pg3.htm "Sparrow Hawk"] high compression STC from Cessna 152s to the AA-1C Lynx, '''SA641NW'''.

Bob Steward: Added links to Scott Jernigan's user page and business web sites

2009-05-15T21:35:26Z

Added links to Scott Jernigan's user page and business web sites

← Older revision		Revision as of 21:35, 15 May 2009
Line 25:		Line 25:
	[[User:Maynard_Crosby\|Maynard Crosby]] received approval for an installation of the Tiger O-360-A4K in Cheetah and Traveler airframes, effectively converting the Cheetah to a Tiger, though the Traveler became a "Super Traveler" with the limitations in fuel capacity and CG limits from the smaller tail.		[[User:Maynard_Crosby\|Maynard Crosby]] received approval for an installation of the Tiger O-360-A4K in Cheetah and Traveler airframes, effectively converting the Cheetah to a Tiger, though the Traveler became a "Super Traveler" with the limitations in fuel capacity and CG limits from the smaller tail.

	[[User:Peter_Otten\|Peter Otten]] received '''SA5452NM''' to install the 200 HP IO-360-C1C6 and Hartzell C/S prop from a Piper Arrow onto a Cheetah. As part of the conversion, the option of increasing the GW by replacing the center spar with a Tiger part allowed recovery of the UL lost with the change in engine and prop weights. After years of keeping the multiple STC unavailable to the public, Peter sold the rights to FletchAir, and they eventually sold the rights to Scott Jernigan, who re-engineered the drawings and coined the term "Hyper-Cheetah", saying that if the 180 HP Tigerization made a Super Cheetah, the next higher superlative would be "Hyper", which coincided with his Hyperdyne Systems business name.		[[User:Peter_Otten\|Peter Otten]] received '''SA5452NM''' to install the 200 HP IO-360-C1C6 and Hartzell C/S prop from a Piper Arrow onto a Cheetah. As part of the conversion, the option of increasing the GW by replacing the center spar with a Tiger part allowed recovery of the UL lost with the change in engine and prop weights. After years of keeping the multiple STC unavailable to the public, Peter sold the rights to FletchAir, and they eventually sold the rights to [[User:Scott_Jernigan\|Scott Jernigan]], who re-engineered the drawings and coined the term "Hyper-Cheetah", saying that if the 180 HP Tigerization made a Super Cheetah, the next higher superlative would be "Hyper", which coincided with his [http://www.hyperdynesystems.com Hyperdyne Systems] business name.

	[[User:John_Coze\|John Coze]] received approval to install a 260 HP IO-540-D4A5 engine and Hartzell C/S prop on his Cheetah, '''SA4966NM'''.		[[User:John_Coze\|John Coze]] received approval to install a 260 HP IO-540-D4A5 engine and Hartzell C/S prop on his Cheetah, '''SA4966NM'''.

	There are many other one-off conversions with 4 and 6 cylinder engines installed on the Cheetah/Tiger airframe, but none are multiple STCs or available to the public at this time.		There are many other one-off conversions with 4 and 6 cylinder engines installed on the Cheetah/Tiger airframe, but none are multiple STCs or available to the public at this time.

Bob Steward: Corrected engine model on Lynx in second paragraph

2009-05-15T21:28:04Z

Corrected engine model on Lynx in second paragraph

← Older revision		Revision as of 21:28, 15 May 2009
Line 1:		Line 1:
	Increasing the HP is a popular option among all brands. The manufacturer's often did this as a means of product expansion, starting with a low HP model and introducing higher HP versions as the model matured.		Increasing the HP is a popular option among all brands. The manufacturer's often did this as a means of product expansion, starting with a low HP model and introducing higher HP versions as the model matured.

	The Grumman line is no exception. Starting with the 1969 model AA-1, the original 108 HP O-235-C2C was replaced on the AA-1C Lynx with the 115 HP O-235-~~C2C~~. The factory expanded the 2 place to a 4 place with the introduction of the Traveler in 1972, and upped the engine to a 150 HP O-320-E2G. 3 years later the Tiger was introduced with the 180 HP O-360-A4K.		The Grumman line is no exception. Starting with the 1969 model AA-1, the original 108 HP O-235-C2C was replaced on the AA-1C Lynx with the 115 HP O-235-L2C. The factory expanded the 2 place to a 4 place with the introduction of the Traveler in 1972, and upped the engine to a 150 HP O-320-E2G. 3 years later the Tiger was introduced with the 180 HP O-360-A4K.

	Owners in the field were often not content to wait for the factory to increase the HP on their favorite model, and developed a number of HP increasing engine swaps and tweaks to existing engines. The following is information about MULTIPLE STCs that can be installed on additional airplanes without FAA field approval. There are many field approved mods, or one-time STCs that can not be duplicated without FAA approval again. Those projects are interesting, but not included here.		Owners in the field were often not content to wait for the factory to increase the HP on their favorite model, and developed a number of HP increasing engine swaps and tweaks to existing engines. The following is information about MULTIPLE STCs that can be installed on additional airplanes without FAA field approval. There are many field approved mods, or one-time STCs that can not be duplicated without FAA approval again. Those projects are interesting, but not included here.

Bob Steward: Added Maynard Crosby's STC number

2009-05-15T21:24:21Z

Added Maynard Crosby's STC number

← Older revision		Revision as of 21:24, 15 May 2009
Line 9:		Line 9:
	One of the earliest such mods was Jimmy Collier's O-290/O-320 conversion for the AA-1x series, '''SA2477SW'''. This STC was subsequently sold to [http://www.fletchair.com/ FletchAir]. FletchAir also has a companion GW increase STC for planes that have been modified with their O-320 conversion STC, '''SA4106SW'''.		One of the earliest such mods was Jimmy Collier's O-290/O-320 conversion for the AA-1x series, '''SA2477SW'''. This STC was subsequently sold to [http://www.fletchair.com/ FletchAir]. FletchAir also has a companion GW increase STC for planes that have been modified with their O-320 conversion STC, '''SA4106SW'''.

	Later [[User:Maynard_Crosby\|Maynard Crosby]] received approval for a follow-on STC with some improvements.		Later [[User:Maynard_Crosby\|Maynard Crosby]] received approval for a follow-on STC with some improvements, '''SA1208NW'''.

	Maynard also received approval to swap the Lynx prop, spinner, and oil cooler onto the earlier 2 place series for higher engine Redline and improved T/O and climb performance, '''SA2169NM'''.		Maynard also received approval to swap the Lynx prop, spinner, and oil cooler onto the earlier 2 place series for higher engine Redline and improved T/O and climb performance, '''SA2169NM'''.

Bob Steward: Added verbage about the purpose of the page (Multiple STCs only)

2009-05-15T18:50:24Z

Added verbage about the purpose of the page (Multiple STCs only)

← Older revision		Revision as of 18:50, 15 May 2009
Line 3:		Line 3:
	The Grumman line is no exception. Starting with the 1969 model AA-1, the original 108 HP O-235-C2C was replaced on the AA-1C Lynx with the 115 HP O-235-C2C. The factory expanded the 2 place to a 4 place with the introduction of the Traveler in 1972, and upped the engine to a 150 HP O-320-E2G. 3 years later the Tiger was introduced with the 180 HP O-360-A4K.		The Grumman line is no exception. Starting with the 1969 model AA-1, the original 108 HP O-235-C2C was replaced on the AA-1C Lynx with the 115 HP O-235-C2C. The factory expanded the 2 place to a 4 place with the introduction of the Traveler in 1972, and upped the engine to a 150 HP O-320-E2G. 3 years later the Tiger was introduced with the 180 HP O-360-A4K.

	Owners in the field were often not content to wait for the factory to increase the HP on their favorite model, and developed a number of HP increasing engine swaps and tweaks to existing engines.		Owners in the field were often not content to wait for the factory to increase the HP on their favorite model, and developed a number of HP increasing engine swaps and tweaks to existing engines. The following is information about MULTIPLE STCs that can be installed on additional airplanes without FAA field approval. There are many field approved mods, or one-time STCs that can not be duplicated without FAA approval again. Those projects are interesting, but not included here.

	'''2 Place STCs'''		'''2 Place STCs'''

Bob Steward: Update FletchAir STC engines

2009-05-15T18:20:56Z

Update FletchAir STC engines

← Older revision		Revision as of 18:20, 15 May 2009
Line 7:		Line 7:
	'''2 Place STCs'''		'''2 Place STCs'''

	One of the earliest such mods was Jimmy Collier's O-320 conversion for the AA-1x series, '''SA2477SW'''. This STC was subsequently sold to [http://www.fletchair.com/ FletchAir]. FletchAir also has a companion GW increase STC for planes that have been modified with their O-320 conversion STC, '''SA4106SW'''.		One of the earliest such mods was Jimmy Collier's O-290/O-320 conversion for the AA-1x series, '''SA2477SW'''. This STC was subsequently sold to [http://www.fletchair.com/ FletchAir]. FletchAir also has a companion GW increase STC for planes that have been modified with their O-320 conversion STC, '''SA4106SW'''.

	Later [[User:Maynard_Crosby\|Maynard Crosby]] received approval for a follow-on STC with some improvements.		Later [[User:Maynard_Crosby\|Maynard Crosby]] received approval for a follow-on STC with some improvements.

Bob Steward: spelling correction

2009-05-15T18:19:23Z

spelling correction

← Older revision		Revision as of 18:19, 15 May 2009
Line 1:		Line 1:
	Increasing the HP is a popular option among all brands. The manufacturer's often did this as a means of product expansion, starting with a low HP model and introducing higher HP versions as the model matured.		Increasing the HP is a popular option among all brands. The manufacturer's often did this as a means of product expansion, starting with a low HP model and introducing higher HP versions as the model matured.

	The Grumman line is no exception. Starting with the 1969 model AA-1, the original 108 HP O-235-C2C was replaced on the AA-1C Lynx with the 115 HP O-235-C2C. The factory expanded the 2 place to a 4 place with the introduction of the Traveler in 1972, and upped the engine to a 150 HP O-320=E2G. 3 years later the Tiger was introduced with the 180 HP O-360-A4K.		The Grumman line is no exception. Starting with the 1969 model AA-1, the original 108 HP O-235-C2C was replaced on the AA-1C Lynx with the 115 HP O-235-C2C. The factory expanded the 2 place to a 4 place with the introduction of the Traveler in 1972, and upped the engine to a 150 HP O-320-E2G. 3 years later the Tiger was introduced with the 180 HP O-360-A4K.

	Owners in the field were often not content to wait for the factory to increase the HP on their favorite model, and developed a number of HP increasing engine swaps and tweaks to existing engines.		Owners in the field were often not content to wait for the factory to increase the HP on their favorite model, and developed a number of HP increasing engine swaps and tweaks to existing engines.

Bob Steward: Added additional details for 4 place STCs and spelling/grammar corrections

2009-05-15T18:18:33Z

Added additional details for 4 place STCs and spelling/grammar corrections

← Older revision		Revision as of 18:18, 15 May 2009
Line 21:		Line 21:
	'''4 Place STCs'''		'''4 Place STCs'''

	By far the most popular mod to the 4 place is the [http://precisionengine.home.mindspring.com/ Bill Scott] High Compression conversion for the 150 HP Traveler and Cheetah engines. Bill adapted a popular mod that was used on Cessna, Piper, and Beech trainers to the Traveler and Cheetah engine, and received the airframe and engine STCs, '''SE683NE, SA682NE'''.		By far the most popular mod to the 4 place is the [http://precisionengine.home.mindspring.com/ Bill Scott] High Compression conversion for the 150 HP Traveler and Cheetah engines. Bill adapted a popular mod that was used on Cessna, Piper, and Beech trainers to the Traveler and Cheetah engine, and received the airframe and engine STCs, '''SE683NE, SA682NE'''. The basis for this STC is installation of the Lycoming 75089 piston as used in the O-320 B and D series engines that are rated at 160 HP. Due to lack of testing for EPA noise requirements, the HC STC limits the Redline RPM to 2650, which according to the Lycoming Engine Operator's Handbook for the High Compression O-320 series is equal to 157 HP, and it is not technically correct to call this an 160 HP STC.

	[[User:Maynard_Crosby\|Maynard Crosby]] received approval for an installation of the Tiger O-360-A4K in Cheetah and Traveler airframes, effectively converting the Cheetah to a Tiger, though the Traveler became a "Super Traveler" with the limitations in fuel capacity and CG limits from the smaller tail.		[[User:Maynard_Crosby\|Maynard Crosby]] received approval for an installation of the Tiger O-360-A4K in Cheetah and Traveler airframes, effectively converting the Cheetah to a Tiger, though the Traveler became a "Super Traveler" with the limitations in fuel capacity and CG limits from the smaller tail.

	[[User:Peter_Otten\|Peter Otten]] received '''SA5452NM''' to install the 200 HP IO-360-C1C6 and Hartzell C/S prop from a Piper Arrow onto a Cheetah. As part of the conversion, the option of increasing the GW by replacing the center spar with a Tiger part allowed recovery of the UL lost with the change in engine and prop weights. After years of keeping the multiple STC unavailable to the public, Peter sold the rights to FletchAir, and they eventually sold the rights to Scott Jernigan, who re-engineered the drawings and coined the term "Hyper-Cheetah", saying that if the 180 HP Tigerization made a Super Cheetah, the next higher superlative would be "Hyper", which coincided with his Hyperdyne Systems business name.		[[User:Peter_Otten\|Peter Otten]] received '''SA5452NM''' to install the 200 HP IO-360-C1C6 and Hartzell C/S prop from a Piper Arrow onto a Cheetah. As part of the conversion, the option of increasing the GW by replacing the center spar with a Tiger part allowed recovery of the UL lost with the change in engine and prop weights. After years of keeping the multiple STC unavailable to the public, Peter sold the rights to FletchAir, and they eventually sold the rights to Scott Jernigan, who re-engineered the drawings and coined the term "Hyper-Cheetah", saying that if the 180 HP Tigerization made a Super Cheetah, the next higher superlative would be "Hyper", which coincided with his Hyperdyne Systems business name.

			[[User:John_Coze\|John Coze]] received approval to install a 260 HP IO-540-D4A5 engine and Hartzell C/S prop on his Cheetah, '''SA4966NM'''.

			There are many other one-off conversions with 4 and 6 cylinder engines installed on the Cheetah/Tiger airframe, but none are multiple STCs or available to the public at this time.

Bob Steward: Create new page for Engine STCs

2009-05-15T18:10:16Z

Create new page for Engine STCs

New page

Increasing the HP is a popular option among all brands. The manufacturer's often did this as a means of product expansion, starting with a low HP model and introducing higher HP versions as the model matured.

The Grumman line is no exception. Starting with the 1969 model AA-1, the original 108 HP O-235-C2C was replaced on the AA-1C Lynx with the 115 HP O-235-C2C. The factory expanded the 2 place to a 4 place with the introduction of the Traveler in 1972, and upped the engine to a 150 HP O-320=E2G. 3 years later the Tiger was introduced with the 180 HP O-360-A4K.

Owners in the field were often not content to wait for the factory to increase the HP on their favorite model, and developed a number of HP increasing engine swaps and tweaks to existing engines.

'''2 Place STCs'''

One of the earliest such mods was Jimmy Collier's O-320 conversion for the AA-1x series, '''SA2477SW'''. This STC was subsequently sold to [http://www.fletchair.com/ FletchAir]. FletchAir also has a companion GW increase STC for planes that have been modified with their O-320 conversion STC, '''SA4106SW'''.

Later [[User:Maynard_Crosby|Maynard Crosby]] received approval for a follow-on STC with some improvements.

Maynard also received approval to swap the Lynx prop, spinner, and oil cooler onto the earlier 2 place series for higher engine Redline and improved T/O and climb performance, '''SA2169NM'''.

[http://www.airmodsnw.com/html/stc_s.html Ken Blackman], as Maynard's ex-partner, duplicated the O-320 conversion effort with some additional changes to receive '''SA4387NM'''.

Ken received approval to move the [http://www.sensenich.com/stc/am152pg3.htm "Sparrow Hawk"] high compression STC from Cessna 152s to the AA-1C Lynx, '''SA641NW'''.

[http://precisionengine.home.mindspring.com/ Bill Scott] received approval for a common mod to the low compression O-235s that machined the case for larger through studs and installed higher compression pistons, essentially converting the O-235-C2C to a conical mount version of the O-235-L2C Lynx engine, '''SA00985CH'''.

'''4 Place STCs'''

By far the most popular mod to the 4 place is the [http://precisionengine.home.mindspring.com/ Bill Scott] High Compression conversion for the 150 HP Traveler and Cheetah engines. Bill adapted a popular mod that was used on Cessna, Piper, and Beech trainers to the Traveler and Cheetah engine, and received the airframe and engine STCs, '''SE683NE, SA682NE'''.

[[User:Maynard_Crosby|Maynard Crosby]] received approval for an installation of the Tiger O-360-A4K in Cheetah and Traveler airframes, effectively converting the Cheetah to a Tiger, though the Traveler became a "Super Traveler" with the limitations in fuel capacity and CG limits from the smaller tail.

[[User:Peter_Otten|Peter Otten]] received '''SA5452NM''' to install the 200 HP IO-360-C1C6 and Hartzell C/S prop from a Piper Arrow onto a Cheetah. As part of the conversion, the option of increasing the GW by replacing the center spar with a Tiger part allowed recovery of the UL lost with the change in engine and prop weights. After years of keeping the multiple STC unavailable to the public, Peter sold the rights to FletchAir, and they eventually sold the rights to Scott Jernigan, who re-engineered the drawings and coined the term "Hyper-Cheetah", saying that if the 180 HP Tigerization made a Super Cheetah, the next higher superlative would be "Hyper", which coincided with his Hyperdyne Systems business name.