NAME PENDANT LAUNCHED COMMISSIONED PAID OFF Warrior R31/RML31 May 20/44 Jan 24/46 Mar 23/48 Magnificent CVL21 Nov 16/44 Mar 21/48 Jun 14/57 Bonaventure RML22/CVL22 Feb 22/45 Jan 17/57 July 3/70 The data in the table below for Warrior was extracted from BR299, a Royal Navy publication dated 1947. Unfortunately the document is out of range for HMC Ships Magnificent and Bonaventure Photos and specs for some of this equipment can be found in this document . Any numeric suffixes which appear for American made equipment, denote the procurement contract number. A TBL-4 is identical to a TBL-12 but was made under a different contract number or even a different contractor.
| HMCS WARRIOR (R31) | |
| LOCATION | EQUIPMENT |
| Transmitting Room
No. 1 |
TAJ15 - HF Transmitter; CW and MCW; 175 to 600 KHz; 500 watts. TAJ
photo here. (Courtesy USN)
TBM9 - HF transmitter. CW/AM. 500 watts max. 2 to 18 MHz Select this link for image 2 x 89P - A 250/350 watt, AM/CW transmitter which operated in the range of 2200 KHz to 20 MHz. Patterned after the RCA type ET4336. Type 89P schematichere. 2 x 60FR - HF Transmitter. British Admiralty 5 x TA - 8 inch unipole trunking TC - 18 inch unipole trunking 4 x CDC - B-28 receiver 2 x CDF/ - B29 receiver 1 x RIS - Radar Interference Supressor (filter) EF - Aerial Exchange Board for 10 aerials. GJ - Wavemeter outfit , crystal type. Frequency range 1000 Khz to 24 MHz or 15 KHz to 2500 KHz depending on the plug-in. Photo here. GN - Wavemeter outfit , crystal type. Frequency range 100 KHz to 25 MHz. Photo here GR - Wavemeter outfit GR is Royal Navy version of the RAF Crystal Monitor 2. |
| Transmitting Room
No. 2 |
TAJ15 - HF Transmitter; CW and MCW; 175 to 600 KHz; 500 watts. A photo
of the TAJ is here. (Courtesy USN)
TBM 9 - HF transmitter. CW/AM. 500 watts max. 2 to 18 MHz Select this link for image. (Courtesy USN) 2 x 89P - A 250/350 watt, AM/CW transmitter which operated in the range of 2200 KHz to 20 MHz and patterned after the American built, RCA type ET4336. 60EQR - HF transmitter. British Admiralty CDC - B28 receiver 4 x TA - 8 inch unipole trunking TC - 18 inch unipole trunking DWB - AC supply BBz - Battery outfit 24 volts @144 amp/hours; 4 volts @ 220 amp/hrs GJ - Wavemeter outfit , crystal type. Frequency range 1000 Khz to 24 MHz or 15 KHz to 2500 KHz depending on the plug-in. Photo here. GS - Wavemeter outfit. |
| Briefing and Ready
Room (for pilot briefings) |
TCS - Transmitter/receiver. !500 KHz to 12 MHz. 25 W on CW. 15 watts
on Phone. Photo here. (Courtesy United States
Navy)
8 x CDC - B28 receiver CDF - B29 receiver 5 x CDU plus two spares FM12 - MFDF outfit RIS - Radar Interference Supressor (filter) DWB - AC supply DWE - AC supply 2 x BBn - Battery outfit. 24 volts @ 144 amp/hours EK - Aerial Exchange Board Positions? GN - Wavemeter outfit , crystal type. Frequency range 100 KHz to 25 MHz. Photo here GR - Wavemeter outfit GR is Royal Navy version of the RAF Crystal Monitor 2. TF - Aerial Trunk Outfit |
| Radio/Telephone Office | 2 x YE - Beacon transmitter. Frequency range: 200 to 250 MHz.
Mode: A2 ; 50 w; Frequency Control: MO. A homing beacon designed
primarily for use on aircraft carriers. More
detail on the YE can be found here.
5 x 87M - VHF transmitter/receiver; MCW/Phone; 100 to 146 Mhz; 50 watts See photo here. (Courtesy British Admiralty) 2 x 86M - VHF transmitter/receiver; MCW/Phone; 100 to 156 Mhz; 50 watts. British version of American SCR-522 2 x TBS7 - VHF radiotelephone ; 60 to 80 MHz 2 x BBn - Battery outfit. 24 volts@ 144 amps. |
| Aircraft Direction Room | 4 x CDC - B28 receiver
3 x RIS - Radar Interference Supressor (filter) EG - Aerial exchange board for 6 aerials GR - Wavemeter outfit GR is Royal Navy version of the RAF Crystal Monitor 2. KFE - R/T control system fitted in ships for fighter direction. KFE supplied 12 channels with 6 control positions and was the main fit in carriers and fighter direction ships. 2 x KGA - The series KGA to KGG were fitted in ships in conjunction with other Control Outfits. |
| Operations Room | ZB/ARA - 520 to 1500 KHz "Command Set" receiver along with
the ZB adapter that allowed it to hear the YE.
BBd - Battery outfit. 24 volts @40 amp/hours |
| D/F Office | FV5 - DF unit ;100 to 150 MHz coverage. Big and bulky, it is installed in aircraft carriers for VHF safety. FV5 photo is here. (Courtesy British Admiralty) |
| Beacon Office | 93 - A medium power Beam Approach Beacon System for aircraft.
Operaties between 200-250 MHz and consisted of the aerial outfit and a
transmitter type 7BC.
DHD - Motor alternator set. Input: 110/220 DC. Output 230 VAC 50 Hz, 800 watts |
| Chart House | DAS2 - Loran 'A' receiver |
| Aerial Outfits | AOB - ?
2 x APU - For TBS radio APZ - This was the aerial outfit for the Type 93 Beacon Transmitter. It consisted of a dipole "design 63” , a phasing outfit and a reflector "design 5". 6 x ARU - Aerial outfit |
| Miscellaneous. | 52ERT - Transportable set; 150 to 1500 KHz.
2 x Type 66 - Portable radio; 6 to 9 MHz; 3 watts; CW or Phone. Equivalent to British Army WS18 set Mk II. Select this link for image. 2 x Type 67 - WS67 (AP W3217) is the Royal Navy version of the British Army WS27 set. There is just a minor difference in the circuit between the two versions. It is a short range transceiver with 3 switched transmit frequencies (22.5 MHz, 23.5 MHz and 24.5 MHz), and with a tunable superregenerative receiver covering 22-25 MHz. TEA - Tools outfits TOM - Testing outfit OF - Deck insulator for DAS Loran receiver KBK - Controller for unidentified radio KCQ - Controller for TBS set |
| There is no radio manifest available for HMCS Magnificent at this time. |
HMCS BONAVENTURE (CVL22) There is no radio equipment manifest available t for HMCS Bonaventure at this time.
Teletype bays in the Communications and Control Room (CCR ) aboard the aircraft carrier HMCS Bonaventure. This may have actually been called the Message Center. (Photo # BN-4100 courtesy DND, Canadian Forces Joint Imagery Centre provided via by Robert Langille) This barometer is believed to have been fitted in BONADVENTURE .(Photo submitted by Jonathathan Evans)
DECK NUMBERINGDarren Scannell provides an explanation for the numbering scheme of the decks in Bonaventure along with some deck plan extracts.
"Decks are usually referred to as Number 1 deck or Number 1 Level. Either is acceptable.
Number is shortened to No.Historically, decks have names such as:
* Forecastle deck - Highest deck at the bow (used on ships that have a partial deck forward)
* Upper deck or Main deck is the first deck that goes from bow to stern. On smaller ships it could be No.1 or 2 decks. On carriers it's either the hangar deck or the one below the hangar deck. On Bonaventure the main deck is No.4
* Gallery deck - (No.2 deck) Only on carriers, This is the deck in between the flight deck and hangar deck. The hangar is usually 2 or more decks high.
* Hangar deck - The floor of the hangar. (No.3 deck) Only on carriers.
* Platform deck, It could consist of more than one deck and is usually below the main deck.
* The bottom deck is the hold.For HMCS Magnificent, the decks were identified by names as above and letters for the Island. No.01 was A deck. 02 - B deck and 03 - C deck.
For HMCS Bonaventure, there are 6 decks below the flight deck. There are 7 decks including the flight deck. The Flight deck is No. 1 deck.There are 4 decks in the Island. The lowest is No. 1 deck, which includes the flight deck, but obviously, inside the island, it's not a flight deck.
For the rest of the Island, it is important to include the leading zero. It's actually pronounced 'Oh one, oh two and oh three' For the Island, the naming is: No. 1 deck, No. 01 deck, No. 02 deck and No. 03 deck."
 |
Deck numbering below the flight deck. Click on thumbnail to enlarge. Note the format of the deck numbering: N°1 top) through N° 7 (bottom) |
 |
Deck numbering inside the island. Click on thumbnail to enlarge. Note the format of the deck numbering: N°01bottom) through N° 04 (top) |
RADIO ROOM LOCATIONS
| RADIO ROOM ID | DECK LOCATION | FRAME | COMMENT or PURPOSE |
| 1 As built | Deck 2 , Port side | Frame 108 to 123 | |
| 2 As built | Deck 2 , Stbd side | Frame 155 to 165 | |
| 3 As built | Deck 1, Bottom of Island | Frame 75 to 83 | |
| 4 As built | Deck 2 , Port side | Frame 123 to 128 | |
| 5 As built | Deck 1, Bottom of Island, | Frame 88 to 92 | |
| 6 As built | Deck 3 - Port side, | Frame 202 to 204 | HF/DF |
| 7 (Unable to locate it) | -- | -- | -- |
| 8 As built | N°. O1 (Island) | Frame 87 to 92 | MF/DF and MF/HF sets located here. Radio state board here as well, |
| 9 As built | Deck 1 - Bottom of Island | Frame 81 to 87 | |
| Message Center |
CONFIGURATION IN 1958 AFTER REFIT
|
|
DECK LOCATION | FRAME | COMMENT or PURPOSE |
| 1 | Deck 2 - Port side, | Frame 108 to 123 | |
| 2 | Removed | --- | |
| 3 | Deck 1 - Bottom of Island, | Frame 75 to 83 | |
| 4 | Deck 2 - Port side | Frame 123 to 137 | |
| 5 | Deck 1 - Bottom of Island, | Frame 88 to 92 | |
| 6 | Deck 3 -Port side | Frame 202 to 204 | |
| 7 (Unable to locate it) | |||
| 8 | Removed | --- | --- |
| 9 | Removed | --- | Replaced with JEZEBEL system |
| Message Centre | Next to Radio 1 | ||
| Crypto Office | ? | ? |
In his book on HMCS Bonaventure, author Alan Snowie mentions that the aircraft carrier had NiNE radio rooms. This is assumed to be the ""as built" configuration.Other equipment included TACAN, a homing beacon, six AN/SRT-502 transmitters on the main deck, starboard, midships, ARC-552 transceivers near the bridge . The homing beacon transmitted BV im Morse.
| Here, HMCS Swansea (R) is being replenished with fuel from HMCS Bonaventure. on May 18/59. In the middle of the photo is a whip antenna in the horizontal position. All the whip antennas were stowed like this during air operations. On the yard arms, there are at least 13 (maybe more) , vertically polarized dipole antennas . Some are very feint. These antennas are believed to be the model AT-150 which operated in the military band of 225 to 400 MHz. The arrows point to just two of the clusters. Click on image to enlarge. (RCN photo) |
| The AT-150 is a 52 ohm balanced UHF antenna.. By 1959, Bonaventure had twenty four AN/ARC 552 UHF sets. .(USN image) |
 |
| By 1969,. four model AS1018/URC antennas have been fitted atop Bonaventure's mainmast to replace the older UHF antennas. The TACAN is inside the dome in the centre of the UHF array. (Portion of an RCN photo) |
 |
| The four vertical antennas attached to the outriggers atop the main mast have been identified as the AS-1018//URC. One of the antennas is shown here in a disassembled state. The antenna itself is a 2 element collinear dipole enclosed in a fibreglass/polyester casing. Click on image to enlarge. AS1018/URC spec sheet here. (Provided by Nick England) |
 |
| AS1018/URC internal view (From "Shipboard Antennas" 2nd Edition by Preston E. Law) |
 |
| Bonaventure's 24 UHF transmitters/receivers shared four AS1018 antennas, likely six transmitters to each antenna. This was achieved through the use of the AN/SRC-501 coupler group. Note that the transmission line from the SRA-501 is pressurized with dry nitrogen to reduce line losses. Only seven of nine couplers are shown in this drawing. (RCN drawing) |
 |
| At the top of the SRA-501 is a TS 5035 RF power test set. Below it are just four out of nine couplers common to the test set and the common antenna .Frequency spacing had to be 2.25 MHz at the bottom of the military band and 4 MHz towards the high end. |
 |
| ARC-552 UHF set. used aboard Bonaventure. |
 |
This image shows the placement of the radio and radar antennas on Bonaventure's foremast and main masts. Circa 1969 Chick on image to enlarge. More details are in the tables below. (Provided Darren Scannell) |
RADAR FITS ON FOREMAST and MAIN MAST (circa 1969)
| MODEL | PHOTO | LOCATION | DESCRIPTION |
| LW-03 |  |
Atop the foremast | LW-03 (LuchtWaarschuwingsradar) is a long-range air surveillance radar operating in the L-band. .Range is 230 NM. The LW-03 was developed in the late 1950s. (Photo courtesy Radartutorial.eu) |
| AN/SPS-10 |  |
Main mast | This is a a medium range, C-Band (5450 - 5825
MHz) surface search radar. Defined as Warning Surface with limited low
air
capability. It was used for the detection, ranging and tracking of surface contacts and to a limited extent, air contacts as well. Vertical beam width was only 12-16 degrees The original SPS-10 emitted 190 or 285 kW pulses |
| Sperry Mk 2 |  |
Below the LW-03 | Mod 2. Surface navigation radar. Range: 30 NM. Peak power 30 kilowatts. Operating frequency: 9375 MHz |
| Decca RM729 | No photo available. | Forward of the foremast | X band navigation radar. Long persistence PPI display . Console was at the aft end of the bridge. No other data available |
| AN/SPN-35 |  |
Front of main mast | The AN/SPN-35 is used to offer guidance to the aircraft pilot on final approach. It provides relative azimuth, range, and elevation information to the radar operator, who relays this as verbal guidance to the aircraft pilot on approach. Click on image to enlarge. (Image by Naval Education and Training Professional Development and Technology Center) |
| AN/UPN-7 |  |
Main mast | S-Band beacon, TX frequency: 2820 MHz +/- 1 MHz
Rx frequency : 2850 to 2910 MHz Peak output power: 1 KW Range: 50 miles. Click on image to enlarge. |
| AT-437 SPS-12 radar | No photo available. | Main mast | The AT-437 is an echo box for the SPS12 radar is noted on the drawing but no radar of this type was fitted. |
OTHER ITEMS OF INTEREST ON THE MAIN MAST (circa 1969)
| MODEL | PHOTO | LOCATION | COMMENT |
| UPD-501 SHF DF antenna |  |
Main mast front | The multiband antenna version is shown.
Coverage was in the S, X and K radar bands. Fitted to the St Laurent, Annapolis,
280, and IRE class of ships. It was also found on Mackenzie and Saskatchewan
and Bonaventure.
For additional information on the UPD-501, go to: http://jproc.ca/rrp/rr4desc.html |
| SRA-17B
Control Box |
 |
Main mast aft | Antenna Group AN/SRA-17B is a compact VLF/LF antenna system used where space for a conventional long wire antenna is not available, or where such antennae would interact with existing antenna installations. The antenna group has three components. Antenna AT-924A/SR consists of a stainless steel tubular whip (see image) and a steel mounting which forms part of the top of the radio frequency tuner. Although the whip is fixed in length, the length may be altered electrically for tuning purposes. Radio Frequency Tuner TN-334A/SRA-17A consists of a single chassis mounted within a housing. The circuits on this chassis tune the antenna and provide a noise source for use as a tuning aid. Antenna Control Unit C-26313B/SRA-17 (see image) is the control center of the antenna group. All operating controls are located on the front panel of the unit. The antenna control unit contains a power supply which energizes the selected antenna tuning circuit, the noise source, and the relays controlling the radio frequency tuner. (Images courtesy navy-radio.com)/ |
| AS177 IFF
Antenna |
 |
Main mast | It is presumed that Bonaventure was fitted with the UPX-1A IFF system. If that's the case, then more information can be found in the IFF section of: : http://jproc.ca/haida/iffsys.html |
| AN/WRT-1
Transmitter |
 |
Main mast aft | A transmitter designed for installation aboard surface vessels. Frequency range: 300 to 1500 KHz , Modes: Telephony, FSK (neutral) teletype at 60 wpm and MCW (1 KHz tone) for beacon applications. Machine telegraphy up to 600 wpm. Power output: 500 w. (180 w in MCW mode) Frequency Control: MO. Major Components: Transmitter Group OA2321A/WRT-1 . Radio Frequency Tuner TN345/WRT-1 ); Antenna Coupler CU-760/WRT-1 Uses antenna type AS-5034.(Image courtesy navy-radio.com)/ |
| Radiosonode
receiver antenna |
No photo available of radiosonode equipment | Main mast aft | Model number of the receiver is unknown |
| VHF antenna | No photo available of the VHF gear in use. | Main mast aft | The model number of the VHF comm equipment is not known. |
| Loran 'A" | ? | ? | Was it ever installed? |
| 28 foot whip | Don't know what this whip connects to. | Attached to funnel. | Attached to funnel ( circa 1969) |
| TACAN | No photo available | Main mast top | Model number unknown |
| Decca Navigator | Photo is available if model number is known | ? | Need model designator. |
CLOSED CIRCUIT TELEVISION (CCTV)As a result of studying training material from David Semple, P2RN3, it was discovered that HMCS Bonaventure was fitted with CCTV around 1955/ 56. The system was fitted in deck O1 to help support aircraft operations. Three cameras were set up in total. Camera #1 was fitted in the Air Direction Room (ADR) and was pointed to the Main Air Direction Plot (MADP), Cameras 2 and 3 , installed in the OPs Room (OPS) , were pointed in such a way as to be able to read the plotting tables. It would appear then, that the purpose of the equipment was to distribute tactical (plot) information to other compartments in the aircraft carrier in real time.
Click on image to enlarge
This diagram denotes the location of the areas where the CCTV system was installed. It was hand drawn on 21-3-1956. This is the left side of the CCTV system schematic. (Ttaining School Handout) This is the right side of the CCTV system schematic. (Ttaining School Handout) The components in the CCTV system were purchased from the Pye Radio Works in Cambridge , England. The model numbers were extracted from various drawings within the training handout. The system used the NTSC standard (525 lines/30 frames per second)
MODEL TYPE DESCRIPTION / COMMENTS 2014F Camera (using 5820 image orthicon). H=18 in' W=15.5 in; Length=25 in;
Weight = 109 lbs (Image courtesy Museum of the Broadcast Television Camera)2309 Camera Control Unit 2356 Camera Power Unit for 2014 camera. 2785C Monitor - 14 inch. 2788C Monitor - 14 inch. NTSC standard 2553Z Sync Pulse Generator 2425 Video Mixing Unit. 5 + 1 input Pat Barnhouse was the electronics maintenance officer in Bonaventure from 1968 to when she was paid off on 3 July 1970. He recalls, that the CCTV system was removed from deck O1 in the 1966-67 refit. Apparently it had failed to deliver on its expectations.
Contributors and Credits:1) Clive Kidd, Collingwood Heritage Museum <cjckidd(at)waitrose.com>
2) BR299 dated 1947, Royal Navy
3) http://www.rnmuseumradarandcommunications2006.org.uk/Transmitters%20Late%201920%20to%20Early%201950.pdf
4) Wavemeters http://www.rnmuseumradarandcommunications2006.org.uk/WAVEMETERS%20ETC%201938.pdf
5) KC series http://www.rnmuseumradarandcommunications2006.org.uk/THE_KC_AND_KF_CONTROL_SYSTEMS.html
6) Nomenclasure for outfits http://www.rnmuseumradarandcommunications2006.org.uk/1945%20March%20edition%20five.pdf
7) M651, Nomenclature of Radio Equipment September 1944 at amendment 6 3/1/49. The book was produced and distributed by Admiralty Signals Establishment
8) D. Semple. RCN (Ret'd)
9) Pat Barnhouse <pat.barnhouse(at)sympatico.ca>
10) Museum of the Broadcast Television Camera http://www.tvcameramuseum.org/pye/pyethumb.htm
11) Darren Scannell
12) SPS-10 https://www.radartutorial.eu/19.kartei/11.ancient/karte075.en.html
13) SRA16B data via Google Books.
14) Nick England
15) Jonathan Evans
Nov 4/24
